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opencv-MIRROR/modules/imgcodecs
Suleyman TURKMEN 32bd8c9632 Merge pull request #27503 from sturkmen72:metadata
[GSOC 2025] PNG&WebP Metadata Reading Writing Improvements #27503

Merge with https://github.com/opencv/opencv_extra/pull/1271

### 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 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
- [ ] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake
2025-07-23 14:59:34 +03:00
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