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Repository for OpenCV's extra modules

Results 382 opencv_contrib issues
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The MultiTracker class in [tracker.hpp](https://github.com/opencv/opencv_contrib/blob/master/modules/tracking/include/opencv2/tracking/tracker.hpp) is great for a quick demo of multi-object tracking using different trackers and objects. I understand that it's a naive implementation and has not been...

feature
category: tracking

- OpenCV =>3.4.3 / 3.4.4 - Operating System / Platform => Windows 64 Bit / ubuntu 16 - Compiler => opencv-contrib-python 3.4.4 / 3.4.3 (from pip) for unknown reason, sample...

bug
category: reg
category: samples
good first issue

In Macbeth colorchecker dictionary, the `RGB` value of `21.neutral 6.5(.44*)` and `23.neutral 3.5(.1.05*)` seems to be wrong, while `Lab` values are correct. Citation: https://babelcolor.com/index_htm_files/RGB%20Coordinates%20of%20the%20Macbeth%20ColorChecker.pdf ### Pull Request Readiness Checklist See...

##### System information (version) - OpenCV => 4.6 - Operating System / Platform => MacOS Monterey arm64 - Compiler => clang ##### Detailed description The AverageHash image comparison algorithm is...

##### System information (version) - OpenCV => 4.5.5 - Python => 3.9 - Operating System / Platform => Windows 64 Bit - Compiler => Visual Studio 2019 ##### Detailed description...

bug
category: ccalib

I am inpainting on small images (±100x200) and using SHIFTMAP and FSR_FAST. While FSR_FAST works fine, SHIFTMAP results in seg fault. I've checked old issues and there seemed to have...

##### System information (version) - OpenCV => 4.5.5: - Operating System / Platform => Linux/Ubuntu 64 Bit - Compiler => gcc (ver 9.3.0) ##### Detailed description I am trying to...

feature
category: cvv
category: build/install

`detectAndDecode` in `WeChatQRCode` not detected QR codes on large images (4032x3024) - OpenCV => 4.6.0 Python - Operating System / Platform => Win10/Ubuntu ubuntu 20.04 ##### Detailed description script: ```...

bug
category: wechat_qrcode

##### System information (version) - OpenCV => 3.2-dev/master - Operating System / Platform => Ubuntu 16.04 - Compiler => gcc 5.4 ##### Detailed description This is kind-of a feature request,...

feature
category: surface_matching

##### System information (version) - OpenCV => 4.5.5 contrib - Operating System / Platform => Ubuntu 18.04 ##### Detailed description I would like to use the class in order to...