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Zhangjie Chen
4d695cd2f4
GSoC: Modified PLY reader to support color attribute read/write #23805 * Modified PLY reader to support color attribute read/write * Fix bugs & Modified OBJ reader for color IO * Replace with correct test file * Fix I/O of property [w] in OBJ files ### Pull Request Readiness Checklist **Merged with https://github.com/opencv/opencv_extra/pull/1075** [Issue for GSoC 2023](https://github.com/opencv/opencv/issues/23624) The ply loader in 3D module doesn't support color attribute reading. I modified that to support color attribute reading & writing for the color attribute compression as described in proposal. See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [x] There is a reference to the original bug report and related work - [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [x] The feature is well documented and sample code can be built with the project CMake
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