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imgcodecs: png: add log if first chunk is not IHDR #27297 Close https://github.com/opencv/opencv/issues/27295 To optimize for the native pixel format of the iPhone's early PowerVR GPUs, Apple implemented a non-standard PNG format. Details: https://theapplewiki.com/wiki/PNG_CgBI_Format ### 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 - [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. - [ ] The feature is well documented and sample code can be built with the project CMake |
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| imgcodecs | ||
| imgproc | ||
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