Commit Graph

13 Commits

Author SHA1 Message Date
Alexander Smorkalov
daa8f7dfc6 Partially back-port #25075 to 4.x 2024-03-05 12:15:39 +03:00
Alexander Alekhin
5d14cc68b7 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2022-11-16 16:54:11 +00:00
Alexander Alekhin
028d4d83d3 imgproc: sigma2=sigma1 in top-level function of GaussianBlur 2022-10-28 17:04:53 +00:00
Sean McBride
35f1a90df7
Merge pull request #22149 from seanm:sprintf
Replaced sprintf with safer snprintf

* Straightforward replacement of sprintf with safer snprintf

* Trickier replacement of sprintf with safer snprintf

Some functions were changed to take another parameter: the size of the buffer, so that they can pass that size on to snprintf.
2022-06-25 06:48:22 +03:00
eplankin
d793ec2ffe
Merge pull request #21779 from eplankin:fix_11303
Fixed out-of-bounds read in parallel version of ippGaussianBlur()

* Fixed out-of-memory read in parallel version of ippGaussianBlur()

* Fixed check

* Revert changes in CMakeLists.txt
2022-04-05 15:58:15 +00:00
Yosshi999
698b2bf729
Merge pull request #18167 from Yosshi999:bit-exact-gaussian
Bit exact gaussian blur for 16bit unsigned int

* bit-exact gaussian kernel for CV_16U

* SIMD optimization

* template GaussianBlurFixedPoint

* remove template specialization

* simd support for h3N121 uint16

* test for u16 gaussian blur

* remove unnecessary comments

* fix return type of raw()

* add typedef of native internal type in fixedpoint

* update return type of raw()
2020-09-01 10:28:25 +00:00
Alexander Alekhin
762a5c8334 imgproc: align GaussianBlur/sepFilter2D OpenCL with CPU version 2020-07-08 15:13:48 +00:00
Alexander Alekhin
a3b109eca0 imgproc: enable GaussianBlur IPP parallel processing 2020-05-17 11:40:34 +00:00
Alexander Alekhin
0fb4f2cc9c imgproc: add src.empty() checks in filter operations 2020-03-20 21:04:29 +00:00
Alexander Alekhin
f4d55d512f
imgproc: fix bit-exact GaussianBlur() / sepFilter2D() (#15855)
* imgproc: fix bit-exact GaussianBlur() / sepFilter2D()

- avoid kernels with bad approximation
- GaussiabBlur - apply error-diffusion approximation for kernel (8-bit fraction)

* java(test): update features2d ref data

* test: update test_facedetect
2019-11-18 01:39:27 +03:00
Maksim Shabunin
6d5ac67681 Restored IPP call reduction 2019-07-31 15:41:22 +03:00
Alexander Alekhin
b99c9145bf imgproc: dispatch smooth 2019-03-11 13:54:12 +00:00
Alexander Alekhin
9dc7554089 imgproc: copy .dispatch.cpp 2019-03-11 13:53:59 +00:00