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HAL added for Otsu threshold by savuor · Pull Request #25509 · opencv/opencv · GitHub
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HAL added for Otsu threshold #25509
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asmorkalov
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Apr 30, 2024
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đź‘Ť
vpisarev
reviewed
Apr 30, 2024
| @param thresholdType Thresholding type | ||
| @param thresh Calculated threshold value | ||
| */ | ||
| inline int hal_ni_threshold_otsu(const uchar* src_data, size_t src_step, uchar* dst_data, size_t dst_step, int width, int height, int depth, int cn, double maxValue, int thresholdType, double* thresh) { return CV_HAL_ERROR_NOT_IMPLEMENTED; } |
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Do we really need this function? If we really need Otsu in HAL, I would simply add
int hal_ni_get_otsu_threshold(const uchar* src_data, size_t src_step, int width, int height, int depth, double* thresh) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
that is, I would add the function that computes value of Otsu threshold, and then simply call hal_ni_threshold() with the computed threshold value.
|
BTW, the result of Otsu thresholding algorithm is black-n-white image. The input is grayscale image. It does not make sense to have |
vpisarev
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May 2, 2024
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May 17, 2024
HAL added for Otsu threshold opencv#25509 fixes opencv#25393 ### 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
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HAL added for Otsu threshold opencv#25509 fixes opencv#25393 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
savuor
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Nov 8, 2024
HAL added for Otsu threshold opencv#25509 fixes opencv#25393 ### 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
savuor
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Nov 21, 2024
HAL added for Otsu threshold opencv#25509 fixes opencv#25393 ### 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
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fixes #25393
Pull Request Readiness Checklist
See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request
Patch to opencv_extra has the same branch name.