Commit: 124011c3
PR: https://github.com/opencv/opencv/pull/13392

Sobel filter with 16S/16U datatype is broken.

OpenCV 3.4.5

backport 4ba4901c

https://software.intel.com/en-us/openvino-toolkit

* Fix python bindings without stitching module

* stitching: move stitching specific code into modules/stitching/misc

- drop hello-android sample

* Python wrapper for detail

* hide pyrotationwrapper

* copy code in pyopencv_rotationwarper.hpp

* move ImageFeatures MatchInfo and CameraParams in core/misc/

* add python test for detail

* move test_detail in test_stitching

* rename

Stitching: added functions to set warp interpolation mode (#13449)

* Added functions to set warp interpolation mode

* Use InterpolationFlags enum

* Improved getter/setter naming

used by OpenCV

Resolves #13375

* conversions of color_rgb.cpp vectorized

* CL impl: coeffs updated

* unused constants removed

* CUDA color coeffs updated

Optimize exposure compensation (#13400)

* Added perf test

* Optimized gains computation

* Use Eigen for gains calculation

broken in 11eafca3

RGB to/from Gray rewritten to wide intrinsics (#13379)

* 5x5 to RGB added

* RGB25x5 added

* Gray2RGB added

* Gray2RGB5x5 added

* vx_set moved out of loops

* RGB5x52Gray added

* RGB2Gray written

* warnings fixed (int -> (u)short conversion)

* warning fixed

* warning fixed

* "i < n-vsize+1" to "i <= n-vsize"

* RGBA2mRGBA vectorized

* try to fix ARM builds

* fixed ARM build for RGB2RGB5x5

* mRGBA2RGBA: saturation, vectorization

* fixed CL implementation of mRGBA2RGBA (saturation added)

* added performance test for compareHist

* compareHist reworked to use wide universal intrinsics

* Disabled vectorization for CV_COMP_CORREL and CV_COMP_BHATTACHARYYA if f64 is unsupported

* python: add checks for drawKeypoints() symbol

* python: more hacks in hdr_parser.py

On windows 7, MinCore_Downlevel does not work correctly. However, the only API used was QISearch, which can be found in Shlwapi.

Closes #12010