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Repository for OpenCV's extra modules

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##### System information - OpenCV => 4.8.0 - Operating System / Platform => Nvidia JetPack 6.0 (Ubuntu 22.04) / Nvidia Jetson Orin NX - Compiler => gcc 11.4.0 ##### Detailed...

- OpenCV => 4.9 - Operating System / Platform => Windows 64 Bit - Compiler => Visual Studio 2022 - cuda =11.6 - cudnn = 8.6.0 - Driver Version =...

Reduce the buffer usage in `QualitySSIM::compute` by safely reusing `I1_I2`, `mu1_mu2` and `sigma12`. ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the...

Related issue: https://github.com/opencv/opencv/issues/26055

``` [ RUN ] FastCV_Extension/WarpPerspective.accuracy/2, where GetParam() = (640x480, 0, 5) /home/ci/opencv_contrib/modules/fastcv/test/test_warp.cpp:122: Failure Expected: (num_diff_pixels) < (src.size().area()*0.05), actual: 22268 vs 13107.2 [ FAILED ] FastCV_Extension/WarpPerspective.accuracy/2, where GetParam() = (640x480, 0,...

category: fastcv

``` [ RUN ] FastCV_Extension/TrackingTest.accuracy/0, where GetParam() = (5, false, false, false) unknown file: Failure C++ exception with description "OpenCV(5.0.0-pre) /mnt/flashdrive/opencv/modules/core/src/norm.dispatch.cpp:526: error: (-215:Assertion failed) _src1.sameSize(_src2) in function 'norm' " thrown...

category: fastcv

``` [ RUN ] FastCV_Extension/MSERTest.accuracy/0, where GetParam() = ((true, false), 4, "cv/shared/baboon.png") Segmentation fault (core dumped) ```

category: fastcv

##### System information (version) - OpenCV => :4.4.0.42 - Operating System / Platform => :window 10 64 bit - Compiler => :gcc ##### Detailed description I'm trying to use cv2.optflow.calcOpticalFlowSparseRLOF()...

bug
category: optflow
category: python bindings

The function ```bool FastLineDetectorImpl::mergeSegments``` allows to merge small segments into a longer one based on the distance between these segments and their orientation. Currently, two segments on the same line...

I would like to suggest exposing the functionality for removing subpixel accuracy in `cv::cuda::StereoSGM`. It is already implemented in `void winnerTakesAll(const GpuMat& src, GpuMat& left, GpuMat& right, float uniqueness, bool...