Fix distransform to work with large images #22798
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@opencv-alalek Could you take a look on the PR? |
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@vpisarev Friendly reminder on tests. |
* converted square to 'almost' square * added another case when there is just one zero pixel in a huge square, so that the distance map is non-trivial.
vpisarev
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Jun 19, 2023
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@asmorkalov, the patch is ready for integration; I've added non-trivial test case and fixed warnings |
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thewoz
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Fix distransform to work with large images opencv#22798 This attempts to fix the following bug which was caused by storing squares of large integers into 32-bit floating point variables: opencv#22732 ### 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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This attempts to fix the following bug which was caused by storing squares of large integers into 32-bit floating point variables:
#22732
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.