Merge pull request #1870 from alalek:move_superres_contrib

modules/superres/CMakeLists.txt

+if(IOS OR WINRT)
+  ocv_module_disable(superres)
+endif()
+
+set(the_description "Super Resolution")
+if(HAVE_CUDA)
+  ocv_warnings_disable(CMAKE_CXX_FLAGS -Wundef -Wshadow)
+endif()
+ocv_define_module(superres opencv_imgproc opencv_video
+                  OPTIONAL opencv_videoio opencv_cudaarithm opencv_cudafilters opencv_cudawarping opencv_cudaimgproc opencv_cudaoptflow opencv_cudacodec
+                  WRAP python)

modules/superres/include/opencv2/superres.hpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#ifndef OPENCV_SUPERRES_HPP
+#define OPENCV_SUPERRES_HPP
+
+#include "opencv2/core.hpp"
+#include "opencv2/superres/optical_flow.hpp"
+
+/**
+  @defgroup superres Super Resolution
+
+The Super Resolution module contains a set of functions and classes that can be used to solve the
+problem of resolution enhancement. There are a few methods implemented, most of them are described in
+the papers @cite Farsiu03 and @cite Mitzel09 .
+
+ */
+
+namespace cv
+{
+    namespace superres
+    {
+
+//! @addtogroup superres
+//! @{
+
+        class CV_EXPORTS FrameSource
+        {
+        public:
+            virtual ~FrameSource();
+
+            virtual void nextFrame(OutputArray frame) = 0;
+            virtual void reset() = 0;
+        };
+
+        CV_EXPORTS Ptr<FrameSource> createFrameSource_Empty();
+
+        CV_EXPORTS Ptr<FrameSource> createFrameSource_Video(const String& fileName);
+        CV_EXPORTS Ptr<FrameSource> createFrameSource_Video_CUDA(const String& fileName);
+
+        CV_EXPORTS Ptr<FrameSource> createFrameSource_Camera(int deviceId = 0);
+
+        /** @brief Base class for Super Resolution algorithms.
+
+        The class is only used to define the common interface for the whole family of Super Resolution
+        algorithms.
+         */
+        class CV_EXPORTS SuperResolution : public cv::Algorithm, public FrameSource
+        {
+        public:
+            /** @brief Set input frame source for Super Resolution algorithm.
+
+            @param frameSource Input frame source
+             */
+            void setInput(const Ptr<FrameSource>& frameSource);
+
+            /** @brief Process next frame from input and return output result.
+
+            @param frame Output result
+             */
+            void nextFrame(OutputArray frame) CV_OVERRIDE;
+            void reset() CV_OVERRIDE;
+
+            /** @brief Clear all inner buffers.
+            */
+            virtual void collectGarbage();
+
+            //! @brief Scale factor
+            /** @see setScale */
+            virtual int getScale() const = 0;
+            /** @copybrief getScale @see getScale */
+            virtual void setScale(int val) = 0;
+
+            //! @brief Iterations count
+            /** @see setIterations */
+            virtual int getIterations() const = 0;
+            /** @copybrief getIterations @see getIterations */
+            virtual void setIterations(int val) = 0;
+
+            //! @brief Asymptotic value of steepest descent method
+            /** @see setTau */
+            virtual double getTau() const = 0;
+            /** @copybrief getTau @see getTau */
+            virtual void setTau(double val) = 0;
+
+            //! @brief Weight parameter to balance data term and smoothness term
+            /** @see setLabmda */
+            virtual double getLabmda() const = 0;
+            /** @copybrief getLabmda @see getLabmda */
+            virtual void setLabmda(double val) = 0;
+
+            //! @brief Parameter of spacial distribution in Bilateral-TV
+            /** @see setAlpha */
+            virtual double getAlpha() const = 0;
+            /** @copybrief getAlpha @see getAlpha */
+            virtual void setAlpha(double val) = 0;
+
+            //! @brief Kernel size of Bilateral-TV filter
+            /** @see setKernelSize */
+            virtual int getKernelSize() const = 0;
+            /** @copybrief getKernelSize @see getKernelSize */
+            virtual void setKernelSize(int val) = 0;
+
+            //! @brief Gaussian blur kernel size
+            /** @see setBlurKernelSize */
+            virtual int getBlurKernelSize() const = 0;
+            /** @copybrief getBlurKernelSize @see getBlurKernelSize */
+            virtual void setBlurKernelSize(int val) = 0;
+
+            //! @brief Gaussian blur sigma
+            /** @see setBlurSigma */
+            virtual double getBlurSigma() const = 0;
+            /** @copybrief getBlurSigma @see getBlurSigma */
+            virtual void setBlurSigma(double val) = 0;
+
+            //! @brief Radius of the temporal search area
+            /** @see setTemporalAreaRadius */
+            virtual int getTemporalAreaRadius() const = 0;
+            /** @copybrief getTemporalAreaRadius @see getTemporalAreaRadius */
+            virtual void setTemporalAreaRadius(int val) = 0;
+
+            //! @brief Dense optical flow algorithm
+            /** @see setOpticalFlow */
+            virtual Ptr<cv::superres::DenseOpticalFlowExt> getOpticalFlow() const = 0;
+            /** @copybrief getOpticalFlow @see getOpticalFlow */
+            virtual void setOpticalFlow(const Ptr<cv::superres::DenseOpticalFlowExt> &val) = 0;
+
+        protected:
+            SuperResolution();
+
+            virtual void initImpl(Ptr<FrameSource>& frameSource) = 0;
+            virtual void processImpl(Ptr<FrameSource>& frameSource, OutputArray output) = 0;
+
+            bool isUmat_;
+
+        private:
+            Ptr<FrameSource> frameSource_;
+            bool firstCall_;
+        };
+
+        /** @brief Create Bilateral TV-L1 Super Resolution.
+
+        This class implements Super Resolution algorithm described in the papers @cite Farsiu03 and
+        @cite Mitzel09 .
+
+        Here are important members of the class that control the algorithm, which you can set after
+        constructing the class instance:
+
+        -   **int scale** Scale factor.
+        -   **int iterations** Iteration count.
+        -   **double tau** Asymptotic value of steepest descent method.
+        -   **double lambda** Weight parameter to balance data term and smoothness term.
+        -   **double alpha** Parameter of spacial distribution in Bilateral-TV.
+        -   **int btvKernelSize** Kernel size of Bilateral-TV filter.
+        -   **int blurKernelSize** Gaussian blur kernel size.
+        -   **double blurSigma** Gaussian blur sigma.
+        -   **int temporalAreaRadius** Radius of the temporal search area.
+        -   **Ptr\<DenseOpticalFlowExt\> opticalFlow** Dense optical flow algorithm.
+         */
+        CV_EXPORTS Ptr<SuperResolution> createSuperResolution_BTVL1();
+        CV_EXPORTS Ptr<SuperResolution> createSuperResolution_BTVL1_CUDA();
+
+//! @} superres
+
+    }
+}
+
+#endif // OPENCV_SUPERRES_HPP

modules/superres/include/opencv2/superres/optical_flow.hpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#ifndef OPENCV_SUPERRES_OPTICAL_FLOW_HPP
+#define OPENCV_SUPERRES_OPTICAL_FLOW_HPP
+
+#include "opencv2/core.hpp"
+
+namespace cv
+{
+    namespace superres
+    {
+
+//! @addtogroup superres
+//! @{
+
+        class CV_EXPORTS DenseOpticalFlowExt : public cv::Algorithm
+        {
+        public:
+            virtual void calc(InputArray frame0, InputArray frame1, OutputArray flow1, OutputArray flow2 = noArray()) = 0;
+            virtual void collectGarbage() = 0;
+        };
+
+
+        class CV_EXPORTS FarnebackOpticalFlow : public virtual DenseOpticalFlowExt
+        {
+        public:
+            /** @see setPyrScale */
+            virtual double getPyrScale() const = 0;
+            /** @copybrief getPyrScale @see getPyrScale */
+            virtual void setPyrScale(double val) = 0;
+            /** @see setLevelsNumber */
+            virtual int getLevelsNumber() const = 0;
+            /** @copybrief getLevelsNumber @see getLevelsNumber */
+            virtual void setLevelsNumber(int val) = 0;
+            /** @see setWindowSize */
+            virtual int getWindowSize() const = 0;
+            /** @copybrief getWindowSize @see getWindowSize */
+            virtual void setWindowSize(int val) = 0;
+            /** @see setIterations */
+            virtual int getIterations() const = 0;
+            /** @copybrief getIterations @see getIterations */
+            virtual void setIterations(int val) = 0;
+            /** @see setPolyN */
+            virtual int getPolyN() const = 0;
+            /** @copybrief getPolyN @see getPolyN */
+            virtual void setPolyN(int val) = 0;
+            /** @see setPolySigma */
+            virtual double getPolySigma() const = 0;
+            /** @copybrief getPolySigma @see getPolySigma */
+            virtual void setPolySigma(double val) = 0;
+            /** @see setFlags */
+            virtual int getFlags() const = 0;
+            /** @copybrief getFlags @see getFlags */
+            virtual void setFlags(int val) = 0;
+        };
+        CV_EXPORTS Ptr<FarnebackOpticalFlow> createOptFlow_Farneback();
+        CV_EXPORTS Ptr<FarnebackOpticalFlow> createOptFlow_Farneback_CUDA();
+
+
+//        CV_EXPORTS Ptr<DenseOpticalFlowExt> createOptFlow_Simple();
+
+
+        class CV_EXPORTS DualTVL1OpticalFlow : public virtual DenseOpticalFlowExt
+        {
+        public:
+            /** @see setTau */
+            virtual double getTau() const = 0;
+            /** @copybrief getTau @see getTau */
+            virtual void setTau(double val) = 0;
+            /** @see setLambda */
+            virtual double getLambda() const = 0;
+            /** @copybrief getLambda @see getLambda */
+            virtual void setLambda(double val) = 0;
+            /** @see setTheta */
+            virtual double getTheta() const = 0;
+            /** @copybrief getTheta @see getTheta */
+            virtual void setTheta(double val) = 0;
+            /** @see setScalesNumber */
+            virtual int getScalesNumber() const = 0;
+            /** @copybrief getScalesNumber @see getScalesNumber */
+            virtual void setScalesNumber(int val) = 0;
+            /** @see setWarpingsNumber */
+            virtual int getWarpingsNumber() const = 0;
+            /** @copybrief getWarpingsNumber @see getWarpingsNumber */
+            virtual void setWarpingsNumber(int val) = 0;
+            /** @see setEpsilon */
+            virtual double getEpsilon() const = 0;
+            /** @copybrief getEpsilon @see getEpsilon */
+            virtual void setEpsilon(double val) = 0;
+            /** @see setIterations */
+            virtual int getIterations() const = 0;
+            /** @copybrief getIterations @see getIterations */
+            virtual void setIterations(int val) = 0;
+            /** @see setUseInitialFlow */
+            virtual bool getUseInitialFlow() const = 0;
+            /** @copybrief getUseInitialFlow @see getUseInitialFlow */
+            virtual void setUseInitialFlow(bool val) = 0;
+        };
+        CV_EXPORTS Ptr<DualTVL1OpticalFlow> createOptFlow_DualTVL1();
+        CV_EXPORTS Ptr<DualTVL1OpticalFlow> createOptFlow_DualTVL1_CUDA();
+
+
+        class CV_EXPORTS BroxOpticalFlow : public virtual DenseOpticalFlowExt
+        {
+        public:
+            //! @brief Flow smoothness
+            /** @see setAlpha */
+            virtual double getAlpha() const = 0;
+            /** @copybrief getAlpha @see getAlpha */
+            virtual void setAlpha(double val) = 0;
+            //! @brief Gradient constancy importance
+            /** @see setGamma */
+            virtual double getGamma() const = 0;
+            /** @copybrief getGamma @see getGamma */
+            virtual void setGamma(double val) = 0;
+            //! @brief Pyramid scale factor
+            /** @see setScaleFactor */
+            virtual double getScaleFactor() const = 0;
+            /** @copybrief getScaleFactor @see getScaleFactor */
+            virtual void setScaleFactor(double val) = 0;
+            //! @brief Number of lagged non-linearity iterations (inner loop)
+            /** @see setInnerIterations */
+            virtual int getInnerIterations() const = 0;
+            /** @copybrief getInnerIterations @see getInnerIterations */
+            virtual void setInnerIterations(int val) = 0;
+            //! @brief Number of warping iterations (number of pyramid levels)
+            /** @see setOuterIterations */
+            virtual int getOuterIterations() const = 0;
+            /** @copybrief getOuterIterations @see getOuterIterations */
+            virtual void setOuterIterations(int val) = 0;
+            //! @brief Number of linear system solver iterations
+            /** @see setSolverIterations */
+            virtual int getSolverIterations() const = 0;
+            /** @copybrief getSolverIterations @see getSolverIterations */
+            virtual void setSolverIterations(int val) = 0;
+        };
+        CV_EXPORTS Ptr<BroxOpticalFlow> createOptFlow_Brox_CUDA();
+
+
+        class PyrLKOpticalFlow : public virtual DenseOpticalFlowExt
+        {
+        public:
+            /** @see setWindowSize */
+            virtual int getWindowSize() const = 0;
+            /** @copybrief getWindowSize @see getWindowSize */
+            virtual void setWindowSize(int val) = 0;
+            /** @see setMaxLevel */
+            virtual int getMaxLevel() const = 0;
+            /** @copybrief getMaxLevel @see getMaxLevel */
+            virtual void setMaxLevel(int val) = 0;
+            /** @see setIterations */
+            virtual int getIterations() const = 0;
+            /** @copybrief getIterations @see getIterations */
+            virtual void setIterations(int val) = 0;
+        };
+        CV_EXPORTS Ptr<PyrLKOpticalFlow> createOptFlow_PyrLK_CUDA();
+
+//! @}
+
+    }
+}
+
+#endif // OPENCV_SUPERRES_OPTICAL_FLOW_HPP

modules/superres/perf/perf_main.cpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "perf_precomp.hpp"
+
+using namespace perf;
+
+static const char * impls[] = {
+#ifdef HAVE_CUDA
+    "cuda",
+#endif
+    "plain"
+};
+
+#if defined(HAVE_HPX)
+    #include <hpx/hpx_main.hpp>
+#endif
+
+CV_PERF_TEST_MAIN_WITH_IMPLS(superres, impls, printCudaInfo())

modules/superres/perf/perf_precomp.hpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+#ifndef __OPENCV_PERF_PRECOMP_HPP__
+#define __OPENCV_PERF_PRECOMP_HPP__
+
+#include "opencv2/ts.hpp"
+#include "opencv2/core/cuda.hpp"
+#include "opencv2/ts/cuda_perf.hpp"
+#include "opencv2/superres.hpp"
+#include "opencv2/superres/optical_flow.hpp"
+
+#endif

modules/superres/perf/perf_superres.cpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "perf_precomp.hpp"
+#include "opencv2/ts/ocl_perf.hpp"
+
+namespace opencv_test
+{
+using namespace perf;
+using namespace cv::superres;
+using namespace cv::cuda;
+
+namespace
+{
+    class OneFrameSource_CPU : public FrameSource
+    {
+    public:
+        explicit OneFrameSource_CPU(const Mat& frame) : frame_(frame) {}
+
+        void nextFrame(OutputArray frame)
+        {
+            frame.getMatRef() = frame_;
+        }
+
+        void reset()
+        {
+        }
+
+    private:
+        Mat frame_;
+    };
+
+    class OneFrameSource_CUDA : public FrameSource
+    {
+    public:
+        explicit OneFrameSource_CUDA(const GpuMat& frame) : frame_(frame) {}
+
+        void nextFrame(OutputArray frame)
+        {
+            frame.getGpuMatRef() = frame_;
+        }
+
+        void reset()
+        {
+        }
+
+    private:
+        GpuMat frame_;
+    };
+
+    class ZeroOpticalFlow : public DenseOpticalFlowExt
+    {
+    public:
+        virtual void calc(InputArray frame0, InputArray, OutputArray flow1, OutputArray flow2)
+        {
+            cv::Size size = frame0.size();
+
+            if (!flow2.needed())
+            {
+                flow1.create(size, CV_32FC2);
+                flow1.setTo(cv::Scalar::all(0));
+            }
+            else
+            {
+                flow1.create(size, CV_32FC1);
+                flow2.create(size, CV_32FC1);
+
+                flow1.setTo(cv::Scalar::all(0));
+                flow2.setTo(cv::Scalar::all(0));
+            }
+        }
+
+        virtual void collectGarbage()
+        {
+        }
+    };
+} // namespace
+
+PERF_TEST_P(Size_MatType, SuperResolution_BTVL1,
+            Combine(Values(szSmall64, szSmall128),
+                    Values(MatType(CV_8UC1), MatType(CV_8UC3))))
+{
+    declare.time(5 * 60);
+
+    const Size size = get<0>(GetParam());
+    const int type = get<1>(GetParam());
+
+    Mat frame(size, type);
+    declare.in(frame, WARMUP_RNG);
+
+    const int scale = 2;
+    const int iterations = 50;
+    const int temporalAreaRadius = 1;
+    Ptr<DenseOpticalFlowExt> opticalFlow(new ZeroOpticalFlow);
+
+    if (PERF_RUN_CUDA())
+    {
+        Ptr<SuperResolution> superRes = createSuperResolution_BTVL1_CUDA();
+
+        superRes->setScale(scale);
+        superRes->setIterations(iterations);
+        superRes->setTemporalAreaRadius(temporalAreaRadius);
+        superRes->setOpticalFlow(opticalFlow);
+
+        superRes->setInput(makePtr<OneFrameSource_CUDA>(GpuMat(frame)));
+
+        GpuMat dst;
+        superRes->nextFrame(dst);
+
+        TEST_CYCLE_N(10) superRes->nextFrame(dst);
+
+        CUDA_SANITY_CHECK(dst, 2);
+    }
+    else
+    {
+        Ptr<SuperResolution> superRes = createSuperResolution_BTVL1();
+
+        superRes->setScale(scale);
+        superRes->setIterations(iterations);
+        superRes->setTemporalAreaRadius(temporalAreaRadius);
+        superRes->setOpticalFlow(opticalFlow);
+
+        superRes->setInput(makePtr<OneFrameSource_CPU>(frame));
+
+        Mat dst;
+        superRes->nextFrame(dst);
+
+        TEST_CYCLE_N(10) superRes->nextFrame(dst);
+
+        CPU_SANITY_CHECK(dst);
+    }
+}
+
+#ifdef HAVE_OPENCL
+
+namespace ocl {
+
+typedef Size_MatType SuperResolution_BTVL1;
+
+OCL_PERF_TEST_P(SuperResolution_BTVL1 ,BTVL1,
+            Combine(Values(szSmall64, szSmall128),
+                    Values(MatType(CV_8UC1), MatType(CV_8UC3))))
+{
+    Size_MatType_t params = GetParam();
+    const Size size = get<0>(params);
+    const int type = get<1>(params);
+
+    Mat frame(size, type);
+    UMat dst(1, 1, 0);
+    declare.in(frame, WARMUP_RNG);
+
+    const int scale = 2;
+    const int iterations = 50;
+    const int temporalAreaRadius = 1;
+
+    Ptr<DenseOpticalFlowExt> opticalFlow(new ZeroOpticalFlow);
+    Ptr<SuperResolution> superRes = createSuperResolution_BTVL1();
+
+    superRes->setScale(scale);
+    superRes->setIterations(iterations);
+    superRes->setTemporalAreaRadius(temporalAreaRadius);
+    superRes->setOpticalFlow(opticalFlow);
+
+    superRes->setInput(makePtr<OneFrameSource_CPU>(frame));
+
+    // skip first frame
+    superRes->nextFrame(dst);
+
+    OCL_TEST_CYCLE_N(10) superRes->nextFrame(dst);
+
+    SANITY_CHECK_NOTHING();
+}
+
+} // namespace ocl
+
+#endif // HAVE_OPENCL
+
+} // namespace

modules/superres/src/cuda/btv_l1_gpu.cu

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "opencv2/opencv_modules.hpp"
+
+#if defined(HAVE_OPENCV_CUDAARITHM) && defined(HAVE_OPENCV_CUDAWARPING) && defined(HAVE_OPENCV_CUDAFILTERS)
+
+#include "opencv2/core/cuda/common.hpp"
+#include "opencv2/core/cuda/transform.hpp"
+#include "opencv2/core/cuda/vec_traits.hpp"
+#include "opencv2/core/cuda/vec_math.hpp"
+
+using namespace cv::cuda;
+using namespace cv::cuda::device;
+
+namespace btv_l1_cudev
+{
+    void buildMotionMaps(PtrStepSzf forwardMotionX, PtrStepSzf forwardMotionY,
+                         PtrStepSzf backwardMotionX, PtrStepSzf bacwardMotionY,
+                         PtrStepSzf forwardMapX, PtrStepSzf forwardMapY,
+                         PtrStepSzf backwardMapX, PtrStepSzf backwardMapY);
+
+    template <int cn>
+    void upscale(const PtrStepSzb src, PtrStepSzb dst, int scale, cudaStream_t stream);
+
+    void diffSign(PtrStepSzf src1, PtrStepSzf src2, PtrStepSzf dst, cudaStream_t stream);
+
+    void loadBtvWeights(const float* weights, size_t count);
+    template <int cn> void calcBtvRegularization(PtrStepSzb src, PtrStepSzb dst, int ksize);
+}
+
+namespace btv_l1_cudev
+{
+    __global__ void buildMotionMapsKernel(const PtrStepSzf forwardMotionX, const PtrStepf forwardMotionY,
+                                          PtrStepf backwardMotionX, PtrStepf backwardMotionY,
+                                          PtrStepf forwardMapX, PtrStepf forwardMapY,
+                                          PtrStepf backwardMapX, PtrStepf backwardMapY)
+    {
+        const int x = blockIdx.x * blockDim.x + threadIdx.x;
+        const int y = blockIdx.y * blockDim.y + threadIdx.y;
+
+        if (x >= forwardMotionX.cols || y >= forwardMotionX.rows)
+            return;
+
+        const float fx = forwardMotionX(y, x);
+        const float fy = forwardMotionY(y, x);
+
+        const float bx = backwardMotionX(y, x);
+        const float by = backwardMotionY(y, x);
+
+        forwardMapX(y, x) = x + bx;
+        forwardMapY(y, x) = y + by;
+
+        backwardMapX(y, x) = x + fx;
+        backwardMapY(y, x) = y + fy;
+    }
+
+    void buildMotionMaps(PtrStepSzf forwardMotionX, PtrStepSzf forwardMotionY,
+                         PtrStepSzf backwardMotionX, PtrStepSzf bacwardMotionY,
+                         PtrStepSzf forwardMapX, PtrStepSzf forwardMapY,
+                         PtrStepSzf backwardMapX, PtrStepSzf backwardMapY)
+    {
+        const dim3 block(32, 8);
+        const dim3 grid(divUp(forwardMapX.cols, block.x), divUp(forwardMapX.rows, block.y));
+
+        buildMotionMapsKernel<<<grid, block>>>(forwardMotionX, forwardMotionY,
+                                               backwardMotionX, bacwardMotionY,
+                                               forwardMapX, forwardMapY,
+                                               backwardMapX, backwardMapY);
+        cudaSafeCall( cudaGetLastError() );
+
+        cudaSafeCall( cudaDeviceSynchronize() );
+    }
+
+    template <typename T>
+    __global__ void upscaleKernel(const PtrStepSz<T> src, PtrStep<T> dst, const int scale)
+    {
+        const int x = blockIdx.x * blockDim.x + threadIdx.x;
+        const int y = blockIdx.y * blockDim.y + threadIdx.y;
+
+        if (x >= src.cols || y >= src.rows)
+            return;
+
+        dst(y * scale, x * scale) = src(y, x);
+    }
+
+    template <int cn>
+    void upscale(const PtrStepSzb src, PtrStepSzb dst, int scale, cudaStream_t stream)
+    {
+        typedef typename TypeVec<float, cn>::vec_type src_t;
+
+        const dim3 block(32, 8);
+        const dim3 grid(divUp(src.cols, block.x), divUp(src.rows, block.y));
+
+        upscaleKernel<src_t><<<grid, block, 0, stream>>>((PtrStepSz<src_t>) src, (PtrStepSz<src_t>) dst, scale);
+        cudaSafeCall( cudaGetLastError() );
+
+        if (stream == 0)
+            cudaSafeCall( cudaDeviceSynchronize() );
+    }
+
+    template void upscale<1>(const PtrStepSzb src, PtrStepSzb dst, int scale, cudaStream_t stream);
+    template void upscale<3>(const PtrStepSzb src, PtrStepSzb dst, int scale, cudaStream_t stream);
+    template void upscale<4>(const PtrStepSzb src, PtrStepSzb dst, int scale, cudaStream_t stream);
+
+    __device__ __forceinline__ float diffSign(float a, float b)
+    {
+        return a > b ? 1.0f : a < b ? -1.0f : 0.0f;
+    }
+    __device__ __forceinline__ float3 diffSign(const float3& a, const float3& b)
+    {
+        return make_float3(
+            a.x > b.x ? 1.0f : a.x < b.x ? -1.0f : 0.0f,
+            a.y > b.y ? 1.0f : a.y < b.y ? -1.0f : 0.0f,
+            a.z > b.z ? 1.0f : a.z < b.z ? -1.0f : 0.0f
+        );
+    }
+    __device__ __forceinline__ float4 diffSign(const float4& a, const float4& b)
+    {
+        return make_float4(
+            a.x > b.x ? 1.0f : a.x < b.x ? -1.0f : 0.0f,
+            a.y > b.y ? 1.0f : a.y < b.y ? -1.0f : 0.0f,
+            a.z > b.z ? 1.0f : a.z < b.z ? -1.0f : 0.0f,
+            0.0f
+        );
+    }
+
+    struct DiffSign : binary_function<float, float, float>
+    {
+        __device__ __forceinline__ float operator ()(float a, float b) const
+        {
+            return diffSign(a, b);
+        }
+    };
+}
+
+namespace cv { namespace cuda { namespace device
+{
+    template <> struct TransformFunctorTraits<btv_l1_cudev::DiffSign> : DefaultTransformFunctorTraits<btv_l1_cudev::DiffSign>
+    {
+        enum { smart_block_dim_y = 8 };
+        enum { smart_shift = 4 };
+    };
+}}}
+
+namespace btv_l1_cudev
+{
+    void diffSign(PtrStepSzf src1, PtrStepSzf src2, PtrStepSzf dst, cudaStream_t stream)
+    {
+        transform(src1, src2, dst, DiffSign(), WithOutMask(), stream);
+    }
+
+    __constant__ float c_btvRegWeights[16*16];
+
+    template <typename T>
+    __global__ void calcBtvRegularizationKernel(const PtrStepSz<T> src, PtrStep<T> dst, const int ksize)
+    {
+        const int x = blockIdx.x * blockDim.x + threadIdx.x + ksize;
+        const int y = blockIdx.y * blockDim.y + threadIdx.y + ksize;
+
+        if (y >= src.rows - ksize || x >= src.cols - ksize)
+            return;
+
+        const T srcVal = src(y, x);
+
+        T dstVal = VecTraits<T>::all(0);
+
+        for (int m = 0, count = 0; m <= ksize; ++m)
+        {
+            for (int l = ksize; l + m >= 0; --l, ++count)
+                dstVal = dstVal + c_btvRegWeights[count] * (diffSign(srcVal, src(y + m, x + l)) - diffSign(src(y - m, x - l), srcVal));
+        }
+
+        dst(y, x) = dstVal;
+    }
+
+    void loadBtvWeights(const float* weights, size_t count)
+    {
+        cudaSafeCall( cudaMemcpyToSymbol(c_btvRegWeights, weights, count * sizeof(float)) );
+    }
+
+    template <int cn>
+    void calcBtvRegularization(PtrStepSzb src, PtrStepSzb dst, int ksize)
+    {
+        typedef typename TypeVec<float, cn>::vec_type src_t;
+
+        const dim3 block(32, 8);
+        const dim3 grid(divUp(src.cols, block.x), divUp(src.rows, block.y));
+
+        calcBtvRegularizationKernel<src_t><<<grid, block>>>((PtrStepSz<src_t>) src, (PtrStepSz<src_t>) dst, ksize);
+        cudaSafeCall( cudaGetLastError() );
+
+        cudaSafeCall( cudaDeviceSynchronize() );
+    }
+
+    template void calcBtvRegularization<1>(PtrStepSzb src, PtrStepSzb dst, int ksize);
+    template void calcBtvRegularization<3>(PtrStepSzb src, PtrStepSzb dst, int ksize);
+    template void calcBtvRegularization<4>(PtrStepSzb src, PtrStepSzb dst, int ksize);
+}
+
+#endif

modules/superres/src/frame_source.cpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+#include "precomp.hpp"
+
+using namespace cv;
+using namespace cv::cuda;
+using namespace cv::superres;
+using namespace cv::superres::detail;
+
+cv::superres::FrameSource::~FrameSource()
+{
+}
+
+//////////////////////////////////////////////////////
+// EmptyFrameSource
+
+namespace
+{
+    class EmptyFrameSource : public FrameSource
+    {
+    public:
+        void nextFrame(OutputArray frame) CV_OVERRIDE;
+        void reset() CV_OVERRIDE;
+    };
+
+    void EmptyFrameSource::nextFrame(OutputArray frame)
+    {
+        frame.release();
+    }
+
+    void EmptyFrameSource::reset()
+    {
+    }
+}
+
+Ptr<FrameSource> cv::superres::createFrameSource_Empty()
+{
+    return makePtr<EmptyFrameSource>();
+}
+
+//////////////////////////////////////////////////////
+// VideoFrameSource & CameraFrameSource
+
+#ifndef HAVE_OPENCV_VIDEOIO
+
+Ptr<FrameSource> cv::superres::createFrameSource_Video(const String& fileName)
+{
+    CV_UNUSED(fileName);
+    CV_Error(cv::Error::StsNotImplemented, "The called functionality is disabled for current build or platform");
+    return Ptr<FrameSource>();
+}
+
+Ptr<FrameSource> cv::superres::createFrameSource_Camera(int deviceId)
+{
+    CV_UNUSED(deviceId);
+    CV_Error(cv::Error::StsNotImplemented, "The called functionality is disabled for current build or platform");
+    return Ptr<FrameSource>();
+}
+
+#else // HAVE_OPENCV_VIDEOIO
+
+namespace
+{
+    class CaptureFrameSource : public FrameSource
+    {
+    public:
+        void nextFrame(OutputArray frame) CV_OVERRIDE;
+
+    protected:
+        VideoCapture vc_;
+
+    private:
+        Mat frame_;
+    };
+
+    void CaptureFrameSource::nextFrame(OutputArray _frame)
+    {
+        if (_frame.kind() == _InputArray::MAT)
+            vc_ >> _frame.getMatRef();
+        else if(_frame.kind() == _InputArray::CUDA_GPU_MAT)
+        {
+            vc_ >> frame_;
+            arrCopy(frame_, _frame);
+        }
+        else if (_frame.isUMat())
+            vc_ >> *(UMat *)_frame.getObj();
+        else
+        {
+            // should never get here
+            CV_Error(Error::StsBadArg, "Failed to detect input frame kind" );
+        }
+    }
+
+    class VideoFrameSource : public CaptureFrameSource
+    {
+    public:
+        VideoFrameSource(const String& fileName);
+
+        void reset() CV_OVERRIDE;
+
+    private:
+        String fileName_;
+    };
+
+    VideoFrameSource::VideoFrameSource(const String& fileName) : fileName_(fileName)
+    {
+        reset();
+    }
+
+    void VideoFrameSource::reset()
+    {
+        vc_.release();
+        vc_.open(fileName_);
+        CV_Assert( vc_.isOpened() );
+    }
+
+    class CameraFrameSource : public CaptureFrameSource
+    {
+    public:
+        CameraFrameSource(int deviceId);
+
+        void reset() CV_OVERRIDE;
+
+    private:
+        int deviceId_;
+    };
+
+    CameraFrameSource::CameraFrameSource(int deviceId) : deviceId_(deviceId)
+    {
+        reset();
+    }
+
+    void CameraFrameSource::reset()
+    {
+        vc_.release();
+        vc_.open(deviceId_);
+        CV_Assert( vc_.isOpened() );
+    }
+}
+
+Ptr<FrameSource> cv::superres::createFrameSource_Video(const String& fileName)
+{
+    return makePtr<VideoFrameSource>(fileName);
+}
+
+Ptr<FrameSource> cv::superres::createFrameSource_Camera(int deviceId)
+{
+    return makePtr<CameraFrameSource>(deviceId);
+}
+
+#endif // HAVE_OPENCV_VIDEOIO
+
+//////////////////////////////////////////////////////
+// VideoFrameSource_CUDA
+
+#ifndef HAVE_OPENCV_CUDACODEC
+
+Ptr<FrameSource> cv::superres::createFrameSource_Video_CUDA(const String& fileName)
+{
+    CV_UNUSED(fileName);
+    CV_Error(cv::Error::StsNotImplemented, "The called functionality is disabled for current build or platform");
+}
+
+#else // HAVE_OPENCV_CUDACODEC
+
+namespace
+{
+    class VideoFrameSource_CUDA : public FrameSource
+    {
+    public:
+        VideoFrameSource_CUDA(const String& fileName);
+
+        void nextFrame(OutputArray frame);
+        void reset();
+
+    private:
+        String fileName_;
+        Ptr<cudacodec::VideoReader> reader_;
+        GpuMat frame_;
+    };
+
+    VideoFrameSource_CUDA::VideoFrameSource_CUDA(const String& fileName) : fileName_(fileName)
+    {
+        reset();
+    }
+
+    void VideoFrameSource_CUDA::nextFrame(OutputArray _frame)
+    {
+        if (_frame.kind() == _InputArray::CUDA_GPU_MAT)
+        {
+            bool res = reader_->nextFrame(_frame.getGpuMatRef());
+            if (!res)
+                _frame.release();
+        }
+        else
+        {
+            bool res = reader_->nextFrame(frame_);
+            if (!res)
+                _frame.release();
+            else
+                arrCopy(frame_, _frame);
+        }
+    }
+
+    void VideoFrameSource_CUDA::reset()
+    {
+        reader_ = cudacodec::createVideoReader(fileName_);
+    }
+}
+
+Ptr<FrameSource> cv::superres::createFrameSource_Video_CUDA(const String& fileName)
+{
+    return makePtr<VideoFrameSource_CUDA>(fileName);
+}
+
+#endif // HAVE_OPENCV_CUDACODEC

modules/superres/src/input_array_utility.cpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "precomp.hpp"
+
+using namespace cv;
+using namespace cv::cuda;
+
+Mat cv::superres::arrGetMat(InputArray arr, Mat& buf)
+{
+    switch (arr.kind())
+    {
+    case _InputArray::CUDA_GPU_MAT:
+        arr.getGpuMat().download(buf);
+        return buf;
+
+    case _InputArray::OPENGL_BUFFER:
+        arr.getOGlBuffer().copyTo(buf);
+        return buf;
+
+    default:
+        return arr.getMat();
+    }
+}
+
+UMat cv::superres::arrGetUMat(InputArray arr, UMat& buf)
+{
+    switch (arr.kind())
+    {
+    case _InputArray::CUDA_GPU_MAT:
+        arr.getGpuMat().download(buf);
+        return buf;
+
+    case _InputArray::OPENGL_BUFFER:
+        arr.getOGlBuffer().copyTo(buf);
+        return buf;
+
+    default:
+        return arr.getUMat();
+    }
+}
+
+GpuMat cv::superres::arrGetGpuMat(InputArray arr, GpuMat& buf)
+{
+    switch (arr.kind())
+    {
+    case _InputArray::CUDA_GPU_MAT:
+        return arr.getGpuMat();
+
+    case _InputArray::OPENGL_BUFFER:
+        arr.getOGlBuffer().copyTo(buf);
+        return buf;
+
+    default:
+        buf.upload(arr.getMat());
+        return buf;
+    }
+}
+
+namespace
+{
+    void mat2mat(InputArray src, OutputArray dst)
+    {
+        src.getMat().copyTo(dst);
+    }
+    void arr2buf(InputArray src, OutputArray dst)
+    {
+        dst.getOGlBufferRef().copyFrom(src);
+    }
+    void mat2gpu(InputArray src, OutputArray dst)
+    {
+        dst.getGpuMatRef().upload(src.getMat());
+    }
+    void buf2arr(InputArray src, OutputArray dst)
+    {
+        src.getOGlBuffer().copyTo(dst);
+    }
+    void gpu2mat(InputArray src, OutputArray dst)
+    {
+        GpuMat d = src.getGpuMat();
+        dst.create(d.size(), d.type());
+        Mat m = dst.getMat();
+        d.download(m);
+    }
+    void gpu2gpu(InputArray src, OutputArray dst)
+    {
+        src.getGpuMat().copyTo(dst.getGpuMatRef());
+    }
+}
+
+void cv::superres::arrCopy(InputArray src, OutputArray dst)
+{
+    if (dst.isUMat() || src.isUMat())
+    {
+        src.copyTo(dst);
+        return;
+    }
+
+    typedef void (*func_t)(InputArray src, OutputArray dst);
+    static const func_t funcs[10][10] =
+    {
+        { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+        { 0, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, arr2buf, 0, mat2gpu },
+        { 0, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, arr2buf, 0, mat2gpu },
+        { 0, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, arr2buf, 0, mat2gpu },
+        { 0, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, arr2buf, 0, mat2gpu },
+        { 0, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, arr2buf, 0, mat2gpu },
+        { 0, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, mat2mat, arr2buf, 0, mat2gpu },
+        { 0, buf2arr, buf2arr, buf2arr, buf2arr, buf2arr, buf2arr, buf2arr, 0, buf2arr },
+        { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+        { 0, gpu2mat, gpu2mat, gpu2mat, gpu2mat, gpu2mat, gpu2mat, arr2buf, 0 , gpu2gpu },
+    };
+
+    const int src_kind = src.kind() >> _InputArray::KIND_SHIFT;
+    const int dst_kind = dst.kind() >> _InputArray::KIND_SHIFT;
+
+    CV_Assert( src_kind >= 0 && src_kind < 10 );
+    CV_Assert( dst_kind >= 0 && dst_kind < 10 );
+
+    const func_t func = funcs[src_kind][dst_kind];
+    CV_Assert( func != 0 );
+
+    func(src, dst);
+}
+
+namespace
+{
+    void convertToCn(InputArray src, OutputArray dst, int cn)
+    {
+        int scn = src.channels();
+        CV_Assert( scn == 1 || scn == 3 || scn == 4 );
+        CV_Assert( cn == 1 || cn == 3 || cn == 4 );
+
+        static const int codes[5][5] =
+        {
+            { -1, -1, -1, -1, -1 },
+            { -1, -1, -1, COLOR_GRAY2BGR, COLOR_GRAY2BGRA },
+            { -1, -1, -1, -1, -1 },
+            { -1, COLOR_BGR2GRAY, -1, -1, COLOR_BGR2BGRA },
+            { -1, COLOR_BGRA2GRAY, -1, COLOR_BGRA2BGR, -1 }
+        };
+
+        const int code = codes[scn][cn];
+        CV_Assert( code >= 0 );
+
+        switch (src.kind())
+        {
+        case _InputArray::CUDA_GPU_MAT:
+            #ifdef HAVE_OPENCV_CUDAIMGPROC
+                cuda::cvtColor(src.getGpuMat(), dst.getGpuMatRef(), code, cn);
+            #else
+                CV_Error(cv::Error::StsNotImplemented, "The called functionality is disabled for current build or platform");
+            #endif
+            break;
+
+        default:
+            cv::cvtColor(src, dst, code, cn);
+            break;
+        }
+    }
+
+    void convertToDepth(InputArray src, OutputArray dst, int depth)
+    {
+        const int sdepth = src.depth();
+        CV_Assert( sdepth <= CV_64F );
+        CV_Assert( depth == CV_8U || depth == CV_32F );
+
+        static const double maxVals[CV_64F + 1] =
+        {
+            (double)std::numeric_limits<uchar>::max(),
+            (double)std::numeric_limits<schar>::max(),
+            (double)std::numeric_limits<ushort>::max(),
+            (double)std::numeric_limits<short>::max(),
+            (double)std::numeric_limits<int>::max(),
+            1.0,
+            1.0,
+        };
+
+        const double scale = maxVals[depth] / maxVals[sdepth];
+
+        switch (src.kind())
+        {
+        case _InputArray::CUDA_GPU_MAT:
+            src.getGpuMat().convertTo(dst.getGpuMatRef(), depth, scale);
+            break;
+
+        case _InputArray::UMAT:
+            src.getUMat().convertTo(dst, depth, scale);
+            break;
+
+        default:
+            src.getMat().convertTo(dst, depth, scale);
+            break;
+        }
+    }
+}
+
+Mat cv::superres::convertToType(const Mat& src, int type, Mat& buf0, Mat& buf1)
+{
+    CV_INSTRUMENT_REGION();
+
+    if (src.type() == type)
+        return src;
+
+    const int depth = CV_MAT_DEPTH(type);
+    const int cn = CV_MAT_CN(type);
+
+    if (src.depth() == depth)
+    {
+        convertToCn(src, buf0, cn);
+        return buf0;
+    }
+
+    if (src.channels() == cn)
+    {
+        convertToDepth(src, buf1, depth);
+        return buf1;
+    }
+
+    convertToCn(src, buf0, cn);
+    convertToDepth(buf0, buf1, depth);
+    return buf1;
+}
+
+UMat cv::superres::convertToType(const UMat& src, int type, UMat& buf0, UMat& buf1)
+{
+    CV_INSTRUMENT_REGION();
+
+    if (src.type() == type)
+        return src;
+
+    const int depth = CV_MAT_DEPTH(type);
+    const int cn = CV_MAT_CN(type);
+
+    if (src.depth() == depth)
+    {
+        convertToCn(src, buf0, cn);
+        return buf0;
+    }
+
+    if (src.channels() == cn)
+    {
+        convertToDepth(src, buf1, depth);
+        return buf1;
+    }
+
+    convertToCn(src, buf0, cn);
+    convertToDepth(buf0, buf1, depth);
+    return buf1;
+}
+
+GpuMat cv::superres::convertToType(const GpuMat& src, int type, GpuMat& buf0, GpuMat& buf1)
+{
+    if (src.type() == type)
+        return src;
+
+    const int depth = CV_MAT_DEPTH(type);
+    const int cn = CV_MAT_CN(type);
+
+    if (src.depth() == depth)
+    {
+        convertToCn(src, buf0, cn);
+        return buf0;
+    }
+
+    if (src.channels() == cn)
+    {
+        convertToDepth(src, buf1, depth);
+        return buf1;
+    }
+
+    convertToCn(src, buf0, cn);
+    convertToDepth(buf0, buf1, depth);
+    return buf1;
+}

modules/superres/src/input_array_utility.hpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#ifndef __OPENCV_SUPERRES_INPUT_ARRAY_UTILITY_HPP__
+#define __OPENCV_SUPERRES_INPUT_ARRAY_UTILITY_HPP__
+
+#include "opencv2/core.hpp"
+#include "opencv2/core/cuda.hpp"
+
+namespace cv
+{
+    namespace superres
+    {
+        CV_EXPORTS Mat arrGetMat(InputArray arr, Mat& buf);
+        CV_EXPORTS UMat arrGetUMat(InputArray arr, UMat& buf);
+        CV_EXPORTS cuda::GpuMat arrGetGpuMat(InputArray arr, cuda::GpuMat& buf);
+
+        CV_EXPORTS void arrCopy(InputArray src, OutputArray dst);
+
+        CV_EXPORTS Mat convertToType(const Mat& src, int type, Mat& buf0, Mat& buf1);
+        CV_EXPORTS UMat convertToType(const UMat& src, int type, UMat& buf0, UMat& buf1);
+        CV_EXPORTS cuda::GpuMat convertToType(const cuda::GpuMat& src, int type, cuda::GpuMat& buf0, cuda::GpuMat& buf1);
+    }
+}
+
+#endif // __OPENCV_SUPERRES_INPUT_ARRAY_UTILITY_HPP__

modules/superres/src/opencl/superres_btvl1.cl

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2010-2012, Multicoreware, Inc., all rights reserved.
+// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// @Authors
+//    Jin Ma jin@multicorewareinc.com
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors as is and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#ifndef cn
+#define cn 1
+#endif
+
+#define sz (int)sizeof(float)
+#define src_elem_at(_src, y, step, x) *(__global const float *)(_src + mad24(y, step, (x) * sz))
+#define dst_elem_at(_dst, y, step, x) *(__global float *)(_dst + mad24(y, step, (x) * sz))
+
+__kernel void buildMotionMaps(__global const uchar * forwardMotionPtr, int forwardMotion_step, int forwardMotion_offset,
+                              __global const uchar * backwardMotionPtr, int backwardMotion_step, int backwardMotion_offset,
+                              __global const uchar * forwardMapPtr, int forwardMap_step, int forwardMap_offset,
+                              __global const uchar * backwardMapPtr, int backwardMap_step, int backwardMap_offset,
+                              int rows, int cols)
+{
+    int x = get_global_id(0);
+    int y = get_global_id(1);
+
+    if (x < cols && y < rows)
+    {
+        int forwardMotion_index = mad24(forwardMotion_step, y, (int)sizeof(float2) * x + forwardMotion_offset);
+        int backwardMotion_index = mad24(backwardMotion_step, y, (int)sizeof(float2) * x + backwardMotion_offset);
+        int forwardMap_index = mad24(forwardMap_step, y, (int)sizeof(float2) * x + forwardMap_offset);
+        int backwardMap_index = mad24(backwardMap_step, y, (int)sizeof(float2) * x + backwardMap_offset);
+
+        float2 forwardMotion = *(__global const float2 *)(forwardMotionPtr + forwardMotion_index);
+        float2 backwardMotion = *(__global const float2 *)(backwardMotionPtr + backwardMotion_index);
+        __global float2 * forwardMap = (__global float2 *)(forwardMapPtr + forwardMap_index);
+        __global float2 * backwardMap = (__global float2 *)(backwardMapPtr + backwardMap_index);
+
+        float2 basePoint = (float2)(x, y);
+
+        forwardMap[0] = basePoint + backwardMotion;
+        backwardMap[0] = basePoint + forwardMotion;
+    }
+}
+
+__kernel void upscale(__global const uchar * srcptr, int src_step, int src_offset, int src_rows, int src_cols,
+                      __global uchar * dstptr, int dst_step, int dst_offset, int scale)
+{
+    int x = get_global_id(0);
+    int y = get_global_id(1);
+
+    if (x < src_cols && y < src_rows)
+    {
+        int src_index = mad24(y, src_step, sz * x * cn + src_offset);
+        int dst_index = mad24(y * scale, dst_step, sz * x * scale * cn + dst_offset);
+
+        __global const float * src = (__global const float *)(srcptr + src_index);
+        __global float * dst = (__global float *)(dstptr + dst_index);
+
+        #pragma unroll
+        for (int c = 0; c < cn; ++c)
+            dst[c] = src[c];
+    }
+}
+
+
+inline float diffSign1(float a, float b)
+{
+    return a > b ? 1.0f : a < b ? -1.0f : 0.0f;
+}
+
+inline float3 diffSign3(float3 a, float3 b)
+{
+    float3 pos;
+    pos.x = a.x > b.x ? 1.0f : a.x < b.x ? -1.0f : 0.0f;
+    pos.y = a.y > b.y ? 1.0f : a.y < b.y ? -1.0f : 0.0f;
+    pos.z = a.z > b.z ? 1.0f : a.z < b.z ? -1.0f : 0.0f;
+    return pos;
+}
+
+__kernel void diffSign(__global const uchar * src1, int src1_step, int src1_offset,
+                       __global const uchar * src2, int src2_step, int src2_offset,
+                       __global uchar * dst, int dst_step, int dst_offset, int rows, int cols)
+{
+    int x = get_global_id(0);
+    int y = get_global_id(1);
+
+    if (x < cols && y < rows)
+        *(__global float *)(dst + mad24(y, dst_step, sz * x + dst_offset)) =
+            diffSign1(*(__global const float *)(src1 + mad24(y, src1_step, sz * x + src1_offset)),
+                      *(__global const float *)(src2 + mad24(y, src2_step, sz * x + src2_offset)));
+}
+
+__kernel void calcBtvRegularization(__global const uchar * src, int src_step, int src_offset,
+                                    __global uchar * dst, int dst_step, int dst_offset, int dst_rows, int dst_cols,
+                                    int ksize, __constant float * c_btvRegWeights)
+{
+    int x = get_global_id(0) + ksize;
+    int y = get_global_id(1) + ksize;
+
+    if (y < dst_rows - ksize && x < dst_cols - ksize)
+    {
+        src += src_offset;
+
+#if cn == 1
+        const float srcVal = src_elem_at(src, y, src_step, x);
+        float dstVal = 0.0f;
+
+        for (int m = 0, count = 0; m <= ksize; ++m)
+            for (int l = ksize; l + m >= 0; --l, ++count)
+            {
+                dstVal += c_btvRegWeights[count] * (diffSign1(srcVal, src_elem_at(src, y + m, src_step, x + l))
+                    - diffSign1(src_elem_at(src, y - m, src_step, x - l), srcVal));
+            }
+
+        dst_elem_at(dst, y, dst_step, x) = dstVal;
+#elif cn == 3
+        __global const float * src0ptr = (__global const float *)(src + mad24(y, src_step, 3 * sz * x + src_offset));
+        float3 srcVal = (float3)(src0ptr[0], src0ptr[1], src0ptr[2]), dstVal = 0.f;
+
+        for (int m = 0, count = 0; m <= ksize; ++m)
+        {
+            for (int l = ksize; l + m >= 0; --l, ++count)
+            {
+                __global const float * src1ptr = (__global const float *)(src + mad24(y + m, src_step, 3 * sz * (x + l) + src_offset));
+                __global const float * src2ptr = (__global const float *)(src + mad24(y - m, src_step, 3 * sz * (x - l) + src_offset));
+
+                float3 src1 = (float3)(src1ptr[0], src1ptr[1], src1ptr[2]);
+                float3 src2 = (float3)(src2ptr[0], src2ptr[1], src2ptr[2]);
+
+                dstVal += c_btvRegWeights[count] * (diffSign3(srcVal, src1) - diffSign3(src2, srcVal));
+            }
+        }
+
+        __global float * dstptr = (__global float *)(dst + mad24(y, dst_step, 3 * sz * x + dst_offset + 0));
+        dstptr[0] = dstVal.x;
+        dstptr[1] = dstVal.y;
+        dstptr[2] = dstVal.z;
+#else
+#error "Number of channels should be either 1 of 3"
+#endif
+    }
+}

modules/superres/src/precomp.hpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#ifndef __OPENCV_PRECOMP_H__
+#define __OPENCV_PRECOMP_H__
+
+#include <vector>
+#include <limits>
+
+#include "opencv2/opencv_modules.hpp"
+#include "opencv2/core.hpp"
+#include "opencv2/core/cuda.hpp"
+#include "opencv2/core/opengl.hpp"
+#include "opencv2/core/utility.hpp"
+#include "opencv2/imgproc.hpp"
+#include "opencv2/video/tracking.hpp"
+#include "opencv2/core/private.hpp"
+
+#include "opencv2/core/private.cuda.hpp"
+#include "opencv2/core/ocl.hpp"
+
+#ifdef HAVE_OPENCV_CUDAARITHM
+#  include "opencv2/cudaarithm.hpp"
+#endif
+
+#ifdef HAVE_OPENCV_CUDAWARPING
+#  include "opencv2/cudawarping.hpp"
+#endif
+
+#ifdef HAVE_OPENCV_CUDAFILTERS
+#  include "opencv2/cudafilters.hpp"
+#endif
+
+#ifdef HAVE_OPENCV_CUDAIMGPROC
+#  include "opencv2/cudaimgproc.hpp"
+#endif
+
+#ifdef HAVE_OPENCV_CUDAOPTFLOW
+#  include "opencv2/cudaoptflow.hpp"
+#endif
+
+#ifdef HAVE_OPENCV_CUDACODEC
+#  include "opencv2/cudacodec.hpp"
+#endif
+
+#ifdef HAVE_OPENCV_VIDEOIO
+    #include "opencv2/videoio.hpp"
+#endif
+
+#include "opencv2/superres.hpp"
+#include "opencv2/superres/optical_flow.hpp"
+#include "input_array_utility.hpp"
+
+#include "ring_buffer.hpp"
+
+#include "opencv2/core/private.hpp"
+
+#endif /* __OPENCV_PRECOMP_H__ */

modules/superres/src/ring_buffer.hpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#ifndef __RING_BUFFER_HPP__
+#define __RING_BUFFER_HPP__
+
+#include "precomp.hpp"
+
+namespace cv
+{
+    namespace superres
+    {
+        namespace detail
+        {
+            template <typename T, class A>
+            inline const T& at(int index, const std::vector<T, A>& items)
+            {
+                const int len = static_cast<int>(items.size());
+                if (index < 0)
+                    index -= ((index - len + 1) / len) * len;
+                if (index >= len)
+                    index %= len;
+                return items[index];
+            }
+
+            template <typename T, class A>
+            inline T& at(int index, std::vector<T, A>& items)
+            {
+                const int len = static_cast<int>(items.size());
+                if (index < 0)
+                    index -= ((index - len + 1) / len) * len;
+                if (index >= len)
+                    index %= len;
+                return items[index];
+            }
+        }
+    }
+}
+
+#endif // __RING_BUFFER_HPP__

modules/superres/src/super_resolution.cpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "precomp.hpp"
+
+using namespace cv;
+using namespace cv::superres;
+
+cv::superres::SuperResolution::SuperResolution()
+{
+    frameSource_ = createFrameSource_Empty();
+    firstCall_ = true;
+    isUmat_ = false;
+}
+
+void cv::superres::SuperResolution::setInput(const Ptr<FrameSource>& frameSource)
+{
+    frameSource_ = frameSource;
+    firstCall_ = true;
+    isUmat_ = false;
+}
+
+void cv::superres::SuperResolution::nextFrame(OutputArray frame)
+{
+    CV_INSTRUMENT_REGION();
+
+    isUmat_ = frame.isUMat();
+
+    if (firstCall_)
+    {
+        initImpl(frameSource_);
+        firstCall_ = false;
+    }
+
+    processImpl(frameSource_, frame);
+}
+
+void cv::superres::SuperResolution::reset()
+{
+    frameSource_->reset();
+    firstCall_ = true;
+    isUmat_ = false;
+}
+
+void cv::superres::SuperResolution::collectGarbage()
+{
+}

modules/superres/test/test_main.cpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "test_precomp.hpp"
+
+#if defined(HAVE_HPX)
+    #include <hpx/hpx_main.hpp>
+#endif
+
+CV_TEST_MAIN("superres")

modules/superres/test/test_precomp.hpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+#ifndef __OPENCV_TEST_PRECOMP_HPP__
+#define __OPENCV_TEST_PRECOMP_HPP__
+
+#include "opencv2/ts.hpp"
+#include "opencv2/superres.hpp"
+
+#endif