Extracted IPP to HAL for getRectSubPix function in 5.x - #29514
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Refactoring and moving IPP functions to HAL for bilateral_filter in Imgproc - #29409
**Performance Numbers on Intel(R) Core(TM) i9-11900K:** https://docs.google.com/spreadsheets/d/1hnH2aGmc3D88HGnvM34xczQbRZUgsKsAHorcB-DpLq4/edit?usp=sharing
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Enabled WarpAffine and WarpPerspective for IPP HAL - #29771
PR enables Warp* functions that were switched off before. The thing is that I added clear 1 for places that agrees with OpenCV due to the changes in OpenCV. Also restrict the transparent border since OpenCV and IPP differently process transparent border with a workaround for current ICV package since it fails on Windows as it was mentioned in https://github.com/opencv/opencv/pull/29669#issuecomment-5339331722.
Locally the `Imgproc_WarpPerspective_Test.accuracy` test passed with ICV that is automatically downloaded by CMake.
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Enabled WarpAffine and WarpPerspective for IPP HAL - #29669
PR enables Warp* functions that were switched off before. The thing is that I added clear `1` for places that agrees with OpenCV due to the changes in OpenCV. Also restrict the transparent border since OpenCV and IPP differently process transparent border.
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Extracting IPP to HAL for matchTemplate function in 5.x #29466
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Distransform function IPP migration to HAL in 4.x #29463
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Extracting IPP integaration as HAL for Canny #29434
Backport of : https://github.com/opencv/opencv/pull/29433
**Performance Numbers on Intel(R) Core(TM) i9-11900K:** https://docs.google.com/spreadsheets/d/1RMvUZP1tSQtdjuNQY9JasYmlx1L5iN9XWGhXtG5u1uI/edit?usp=sharing
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Extracting IPP to HAL for matchTemplate function in 4.x #29464
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Filter2D IPP extraction to HAL for 5.x #29428
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Filter2D IPP migration to HAL for 4.x #29427
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Merge pull request #29414 from Prasadayus:box_filter_refactor
Moving IPP functions to HAL for box_filter in Imgproc #29414
**Performance Numbers on Intel(R) Core(TM) i9-11900K:** https://docs.google.com/spreadsheets/d/1puWmOSTtAFwWjPu8J1SpuccPQvxUJU8NlFQs7mAZwL8/edit?usp=sharing
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Refactoring and optimizing cvtcolor in Imgproc #29389
**Key Changes:**
1. Unified three divergent SIMD swap implementations into a single shared `v_swap` helper.
2. Consolidated the repeated `CV_8U/CV_16U/CV_32F` depth-dispatch chains into a single `CvtColorLoopDepth` template.
3. Extracted the duplicated coefficient-selection loops in the YCrCb/YUV constructors into `selectYuvCoeffs`.
4. Collapsed the shared YUV420 store logic duplicated across both decode invokers into `storeYUV420block`.
5. Generalized the inline blue-channel coefficient swaps in `color_lab.cpp` into `swapBlueCoeffsCols`/`swapBlueCoeffsRows`.
6. Added a `v_dotprod`-based SIMD path (`v_RGB2Y`/`v_RGB2UV`) for the previously scalar `RGB8toYUV422Invoker`.
7. Migrated all inline `CV_IPP_CHECK` cvtColor paths out of the dispatch files and into the IPP HAL plugin (`hal/ipp/src/color_ipp.cpp`), replacing each call site with `CALL_HAL`.
**Performance Numbers on Intel(R) Core(TM) i9-11900K**: https://docs.google.com/spreadsheets/d/1pz0aHlTeG4Ao8RT7LipgdNSjhCJz92QfZG3GmNa63hU/edit?usp=sharing
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Extract IPP integration as HAL function for box_filter #29420
Backport of https://github.com/opencv/opencv/pull/29414
**Performance Numbers on Intel(R) Core(TM) i9-11900K:** https://docs.google.com/spreadsheets/d/1kMKiZWh--pH30hqsQo6j1suNw1lfQiKzSankMCMa2FI/edit?usp=sharing
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Reenable ICV and fix#29166#29183
Fixing https://github.com/opencv/opencv/issues/29166 and return back the 2026.0.0 ICV.
Tests are passed locally on Windows machine. Feel free to check if they are passed in bigger test systems.
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Fix IPP warpAffine #28562
The issue is that we compute the inverse transformation and pass that to the HAL, but tell IPP that we use the actual transformation.
https://github.com/opencv/opencv/blob/a269a489b94b84717691533a04f79d9a0e5f479a/modules/imgproc/src/imgwarp.cpp#L2399-L2412
I have added an additional test with `CV_16S` Mats to test the IPP implementation, because right now no other `warpAffine` test enters the IPP branch.
This fixes#28554.
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Abhishek Gola
Prasadayus
Akansha Mallick
Andrei Fedorov
Prasad Ayush Kumar
Alexander Smorkalov
Alexander Smorkalov
Connor Tench
nmizonov
Adrian Kretz