Added distance threshold argument into videostab sample

modules/videostab/include/opencv2/videostab/inpainting.hpp

@@ -137,6 +137,9 @@ public:
     void setFlowErrorThreshold(float val) { flowErrorThreshold_ = val; }
     float flowErrorThreshold() const { return flowErrorThreshold_; }
 
+    void setDistThreshold(float val) { distThresh_ = val; }
+    float distThresh() const { return distThresh_; }
+
     void setBorderMode(int val) { borderMode_ = val; }
     int borderMode() const { return borderMode_; }
 
@@ -146,6 +149,7 @@ private:
     FastMarchingMethod fmm_;
     Ptr<IDenseOptFlowEstimator> optFlowEstimator_;
     float flowErrorThreshold_;
+    float distThresh_;
     int borderMode_;
 
     Mat frame1_, transformedFrame1_;
@@ -184,7 +188,7 @@ CV_EXPORTS void calcFlowMask(
 
 CV_EXPORTS void completeFrameAccordingToFlow(
         const Mat &flowMask, const Mat &flowX, const Mat &flowY, const Mat &frame1, const Mat &mask1,
-        Mat& frame0, Mat &mask0);
+        float distThresh, Mat& frame0, Mat &mask0);
 
 } // namespace videostab
 } // namespace cv

modules/videostab/src/inpainting.cpp

@@ -110,7 +110,7 @@ struct Pixel3
 
 ConsistentMosaicInpainter::ConsistentMosaicInpainter()
 {
-    setStdevThresh(20);
+    setStdevThresh(20.f);
 }
 
 
@@ -288,6 +288,7 @@ MotionInpainter::MotionInpainter()
     CV_Error(CV_StsNotImplemented, "Current implementation of MotionInpainter requires GPU");
 #endif
     setFlowErrorThreshold(1e-4f);
+    setDistThreshold(5.f);
     setBorderMode(BORDER_REPLICATE);
 }
 
@@ -353,7 +354,8 @@ void MotionInpainter::inpaint(int idx, Mat &frame, Mat &mask)
         fmm_.run(flowMask_, body);
 
         completeFrameAccordingToFlow(
-                flowMask_, flowX_, flowY_, transformedFrame1_, transformedMask1_, frame, mask);
+                flowMask_, flowX_, flowY_, transformedFrame1_, transformedMask1_, distThresh_,
+                frame, mask);
     }
 }
 
@@ -446,7 +448,7 @@ void calcFlowMask(
 
 void completeFrameAccordingToFlow(
         const Mat &flowMask, const Mat &flowX, const Mat &flowY, const Mat &frame1, const Mat &mask1,
-        Mat &frame0, Mat &mask0)
+        float distThresh, Mat &frame0, Mat &mask0)
 {
     CV_Assert(flowMask.type() == CV_8U);
     CV_Assert(flowX.type() == CV_32F && flowX.size() == flowMask.size());
@@ -459,6 +461,7 @@ void completeFrameAccordingToFlow(
     Mat_<uchar> flowMask_(flowMask), mask1_(mask1), mask0_(mask0);
     Mat_<float> flowX_(flowX), flowY_(flowY);
 
+    //int count = 0;
     for (int y0 = 0; y0 < frame0.rows; ++y0)
     {
         for (int x0 = 0; x0 < frame0.cols; ++x0)
@@ -468,14 +471,17 @@ void completeFrameAccordingToFlow(
                 int x1 = cvRound(x0 + flowX_(y0,x0));
                 int y1 = cvRound(y0 + flowY_(y0,x0));
 
-                if (x1 >= 0 && x1 < frame1.cols && y1 >= 0 && y1 < frame1.rows && mask1_(y1,x1))
-                {
+                if (x1 >= 0 && x1 < frame1.cols && y1 >= 0 && y1 < frame1.rows && mask1_(y1,x1)
+                    && sqr(flowX_(y0,x0)) + sqr(flowY_(y0,x0)) < sqr(distThresh))
+                {                    
                     frame0.at<Point3_<uchar> >(y0,x0) = frame1.at<Point3_<uchar> >(y1,x1);
                     mask0_(y0,x0) = 255;
+                    //count++;
                 }
             }
         }
     }
+    //cout << count << endl;
 }
 
 } // namespace videostab

samples/cpp/videostab.cpp

@@ -57,40 +57,42 @@ void printHelp()
             "      Outliers ratio in motion estimation. The default is 0.5.\n"
             "  --min-inlier-ratio=<float_number>\n"
             "      Minimum inlier ratio to decide if estimated motion is OK. The default is 0.1,\n"
-            "      but you may want to increase it.\n"
+            "      but you may want to increase it.\n\n"
             "  -r, --radius=<int_number>\n"
             "      Set smoothing radius. The default is 15.\n"
             "  --stdev=<float_number>\n"
-            "      Set smoothing weights standard deviation. The default is sqrt(radius).\n"
+            "      Set smoothing weights standard deviation. The default is sqrt(radius).\n\n"
             "  --deblur=(yes|no)\n"
             "      Do deblurring.\n"
             "  --deblur-sens=<float_number>\n"
-            "      Set deblurring sensitivity (from 0 to +inf). The default is 0.1.\n"
+            "      Set deblurring sensitivity (from 0 to +inf). The default is 0.1.\n\n"
             "  -t, --trim-ratio=<float_number>\n"
-            "      Set trimming ratio (from 0 to 0.5). The default is 0.\n"
+            "      Set trimming ratio (from 0 to 0.5). The default is 0.0.\n"
             "  --est-trim=(yes|no)\n"
             "      Estimate trim ratio automatically. The default is yes (that leads to two passes,\n"
             "      you can turn it off if you want to use one pass only).\n"
             "  --incl-constr=(yes|no)\n"
-            "      Ensure the inclusion constraint is always satisfied. The default is no.\n"
+            "      Ensure the inclusion constraint is always satisfied. The default is no.\n\n"
             "  --border-mode=(replicate|reflect|const)\n"
-            "      Set border extrapolation mode. The default is replicate.\n"
+            "      Set border extrapolation mode. The default is replicate.\n\n"
             "  --mosaic=(yes|no)\n"
             "      Do consistent mosaicing. The default is no.\n"
             "  --mosaic-stdev=<float_number>\n"
-            "      Consistent mosaicing stdev threshold. The default is 10.\n"
+            "      Consistent mosaicing stdev threshold. The default is 10.0.\n\n"
             "  --motion-inpaint=(yes|no)\n"
             "      Do motion inpainting (requires GPU support). The default is no.\n"
+            "  --dist-thresh=<float_number>\n"
+            "      Estimated flow distance threshold for motion inpainting. The default is 5.0.\n\n"
             "  --color-inpaint=(no|average|ns|telea)\n"
             "      Do color inpainting. The defailt is no.\n"
             "  --color-inpaint-radius=<float_number>\n"
-            "      Set color inpainting radius (for ns and telea options only).\n"
+            "      Set color inpainting radius (for ns and telea options only).\n\n"
             "  -o, --output=<file_path>\n"
             "      Set output file path explicitely. The default is stabilized.avi.\n"
             "  --fps=<int_number>\n"
             "      Set output video FPS explicitely. By default the source FPS is used.\n"
             "  -q, --quiet\n"
-            "      Don't show output video frames.\n"
+            "      Don't show output video frames.\n\n"
             "  -h, --help\n"
             "      Print help.\n"
             "\n";
@@ -117,6 +119,7 @@ int main(int argc, const char **argv)
                 "{ | mosaic | | }"
                 "{ | mosaic-stdev | | }"
                 "{ | motion-inpaint | | }"
+                "{ | dist-thresh | | }"
                 "{ | color-inpaint | no | }"
                 "{ | color-inpaint-radius | | }"
                 "{ o | output | stabilized.avi | }"
@@ -212,7 +215,12 @@ int main(int argc, const char **argv)
             inpainters->pushBack(inpainter);
         }
         if (cmd.get<string>("motion-inpaint") == "yes")
-            inpainters->pushBack(new MotionInpainter());
+        {
+            MotionInpainter *inpainter = new MotionInpainter();
+            if (!cmd.get<string>("dist-thresh").empty())
+                inpainter->setDistThreshold(cmd.get<float>("dist-thresh"));
+            inpainters->pushBack(inpainter);
+        }
         if (!cmd.get<string>("color-inpaint").empty())
         {
             if (cmd.get<string>("color-inpaint") == "average")
@@ -254,7 +262,7 @@ int main(int argc, const char **argv)
     }
     catch (const exception &e)
     {
-        cout << e.what() << endl;
+        cout << "error: " << e.what() << endl;
         stabilizer.release();
         return -1;
     }