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Merge pull request #23341 from TuNanTang:3.4

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### 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.
- [ ] 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
- [ ] 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
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TuNanTang 2023-03-14 21:09:53 +08:00 committed by GitHub
parent b204c39815
commit 56a4877e30
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samples/cpp/tutorial_code/core/mat_mask_operations/mat_mask_operations.cpp
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@ -92,7 +92,7 @@ void Sharpen(const Mat& myImage,Mat& Result)
for(int i= nChannels;i < nChannels*(myImage.cols-1); ++i) for(int i= nChannels;i < nChannels*(myImage.cols-1); ++i)
{ {
*output++ = saturate_cast<uchar>(5*current[i] output[i] = saturate_cast<uchar>(5*current[i]
-current[i-nChannels] - current[i+nChannels] - previous[i] - next[i]); -current[i-nChannels] - current[i+nChannels] - previous[i] - next[i]);
} }
} }