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Open Source Computer Vision Library opencv.org
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Kumataro 3a69b11b6d
Merge pull request #27297 from Kumataro:fix27295 
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
2025-05-12 10:44:54 +03:00
.github Removed Android test as it's broken for now. 2025-02-18 12:52:24 +03:00
3rdparty Merge pull request #27252 from asmorkalov:as/extract_hal 2025-04-25 14:56:42 +03:00
apps Remove useless C headers 2025-01-13 16:34:28 +01:00
cmake Merge pull request #27252 from asmorkalov:as/extract_hal 2025-04-25 14:56:42 +03:00
data Merge pull request #22727 from su77ungr:patch-1 2022-11-17 06:54:25 +00:00
doc Merge pull request #27230 from sirudoi:4.x 2025-04-25 11:04:19 +03:00
hal perf: implemented flip_inplace in hal_rvv to boost cv::rotate on RISC-V platforms 2025-04-28 14:18:48 +08:00
include exclude opencv_contrib modules 2020-02-26 15:12:45 +03:00
modules Merge pull request #27297 from Kumataro:fix27295 2025-05-12 10:44:54 +03:00
platforms Added KleidiCV check for Android SDK release builds. 2025-04-24 07:30:16 +03:00
samples Update houghcircles.py 2025-04-25 15:39:50 +08:00
.editorconfig add .editorconfig 2018-10-11 17:57:51 +00:00
.gitattributes cmake: generate and install ffmpeg-download.ps1 2018-06-09 13:19:48 +03:00
.gitignore Merge pull request #17165 from komakai:objc-binding 2020-06-08 18:32:53 +00:00
CMakeLists.txt Enable GIF support by default. 2025-04-25 15:03:22 +03:00
CONTRIBUTING.md migration: github.com/opencv/opencv 2016-07-12 12:51:12 +03:00
COPYRIGHT copyright: 2023 (update) 2023-01-09 09:49:22 +00:00
LICENSE Merge pull request #18073 from vpisarev:apache2_license 2020-08-17 11:49:11 +00:00
README.md Space mistake in README.md 2024-03-03 23:37:07 +05:30
SECURITY.md Updated PGP key for security reports 2023-04-19 19:16:55 +03:00

README.md

OpenCV: Open Source Computer Vision Library

Resources

Contributing

Please read the contribution guidelines before starting work on a pull request.

Summary of the guidelines:

  • One pull request per issue;
  • Choose the right base branch;
  • Include tests and documentation;
  • Clean up "oops" commits before submitting;
  • Follow the coding style guide.

Additional Resources