opencv/modules
Alexander Smorkalov 15783d6598
Merge pull request #25792 from asmorkalov:as/HAL_fast_GaussianBlur
Added flag to GaussianBlur for faster but not bit-exact implementation #25792

Rationale:
Current implementation of GaussianBlur is almost always bit-exact. It helps to get predictable results according platforms, but prohibits most of approximations and optimization tricks.

The patch converts `borderType` parameter to more generic `flags` and introduces `GAUSS_ALLOW_APPROXIMATIONS` flag to allow not bit-exact implementation. With the flag IPP and generic HAL implementation are called first. The flag naming and location is a subject for discussion.

Replaces https://github.com/opencv/opencv/pull/22073
Possibly related issue: https://github.com/opencv/opencv/issues/24135

### 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
- [ ] 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
2024-07-12 15:03:33 +03:00
..
calib3d Merge pull request #25808 from DmitryYurov:bug-25806-checkerboard-marker-black-tile 2024-07-08 12:36:56 +03:00
core Merge pull request #25792 from asmorkalov:as/HAL_fast_GaussianBlur 2024-07-12 15:03:33 +03:00
dnn Merge pull request #25880 from Jamim:fix/cuda-no-fp16 2024-07-10 12:39:30 +03:00
features2d Merge pull request #25424 from mshabunin:fix-features2d-test 2024-04-17 14:19:05 +03:00
flann Prevent signed integer overflow in LshTable 2024-05-24 23:47:36 +02:00
gapi Merge pull request #25817 from lamiayous:ly/extend_onnxrt_gapi_backend_handle_i32_i64_type 2024-07-12 11:38:43 +03:00
highgui Fixed gtkglext search in cmake. 2024-07-03 19:22:06 +03:00
imgcodecs Update imgcodecs.hpp 2024-07-10 15:24:37 +03:00
imgproc Merge pull request #25792 from asmorkalov:as/HAL_fast_GaussianBlur 2024-07-12 15:03:33 +03:00
java Merge pull request #25856 from alexlyulkov:al/android-optional-kotlin 2024-07-04 13:26:37 +03:00
js Merge pull request #25757 from dkurt:d.kurtaev/opencv_js_tests_old_emsdk 2024-06-17 12:46:10 +03:00
ml Partially back-port #25075 to 4.x 2024-03-05 12:15:39 +03:00
objc Merge pull request #24136 from komakai:visionos_support 2023-12-20 15:35:10 +03:00
objdetect Merge pull request #25722 from AleksandrPanov:update_testSeveralBoardsWithCustomIds 2024-06-06 20:01:33 +03:00
photo photo: doc: Fix window range for fastNlMeansDenoisingMulti 2024-06-21 21:04:22 +08:00
python Merge pull request #25792 from asmorkalov:as/HAL_fast_GaussianBlur 2024-07-12 15:03:33 +03:00
stitching Partially back-port #25075 to 4.x 2024-03-05 12:15:39 +03:00
ts Merge pull request #25792 from asmorkalov:as/HAL_fast_GaussianBlur 2024-07-12 15:03:33 +03:00
video Merge pull request #25771 from fengyuentau:vittrack_black_input 2024-06-18 12:48:28 +03:00
videoio Merge pull request #25844 from dietmar:dont_rely_on_nb_frames 2024-07-05 11:23:20 +03:00
world cmake: use /INCREMENTAL:NO with MSVS 2015 2023-12-07 19:46:27 +00:00