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Yuantao Feng
c91af16fa7
dnn: add shared fastNorm kernel for mvn, instance norm and layer norm #24409 Relates https://github.com/opencv/opencv/pull/24378#issuecomment-1756906570 TODO: - [x] add fastNorm - [x] refactor layer norm with fastNorm - [x] refactor mvn with fastNorm - [ ] add onnx mvn in importer (in a new PR?) - [ ] refactor instance norm with fastNorm (in another PR https://github.com/opencv/opencv/pull/24378, need to merge this one first though) ### 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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