potok/opencv
1
0
Fork 0
mirror of https://github.com/opencv/opencv.git synced 2026-07-30 07:43:03 +04:00
Code Packages Releases Wiki Activity

Merge pull request #26508 from Kumataro:fix26507

Browse Source 
Support CV_32U, CV_64U and CV_64S for TIFF #26508

Close https://github.com/opencv/opencv/issues/26507

Note: Predictor 2 for 64-bit is only supported after libtiff 4.4.0. But Linux x64 Debug uses libtiff 4.1.0 (releases at 2019/11/3). I append fallback fix to NONE. I hope It works well.

### 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.
- [x] The feature is well documented and sample code can be built with the project CMake
This commit is contained in:
Kumataro
2024-11-25 17:04:54 +09:00
committed by GitHub
parent 6e229bda2b
commit f7483cd978
3 changed files with 69 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
modules/imgcodecs/include/opencv2/imgcodecs.hpp
+4 -1
View File
@@ -332,7 +332,10 @@ can be saved using this function, with these exceptions:
8-bit (or 16-bit) 4-channel image BGRA, where the alpha channel goes last. Fully transparent pixels
should have alpha set to 0, fully opaque pixels should have alpha set to 255/65535 (see the code sample below).
- With PGM/PPM encoder, 8-bit unsigned (CV_8U) and 16-bit unsigned (CV_16U) images can be saved.
- With TIFF encoder, 8-bit unsigned (CV_8U), 16-bit unsigned (CV_16U),
- With TIFF encoder, 8-bit unsigned (CV_8U), 8-bit signed (CV_8S),
16-bit unsigned (CV_16U), 16-bit signed (CV_16S),
32-bit unsigned (CV_32U), 32-bit signed (CV_32S),
64-bit unsigned (CV_64U), 64-bit signed (CV_64S),
32-bit float (CV_32F) and 64-bit float (CV_64F) images can be saved.
- Multiple images (vector of Mat) can be saved in TIFF format (see the code sample below).
- 32-bit float 3-channel (CV_32FC3) TIFF images will be saved