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Commit Graph

7 Commits (540aa13300b2aede45d328a228f79fb26ad1a5cd)

Author	SHA1	Message	Date
Tomoaki Teshima	1e74f5850b	suppress GaussianBlur to generate empty images ... * sharp Gaussian kernel causes over flow and ends up in blank image	3 years ago
Xinguang Bian	7499a15c92	fix data overflow problem in GaussianBlur	4 years ago
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()	4 years ago
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	5 years ago
Vitaly Tuzov	894ad33bf4	Fix pixel value evaluation overflow in bit-exact GaussianBlur implementation	5 years ago
Alexander Alekhin	4a297a2443	ts: refactor OpenCV tests ... - removed tr1 usage (dropped in C++17) - moved includes of vector/map/iostream/limits into ts.hpp - require opencv_test + anonymous namespace (added compile check) - fixed norm() usage (must be from cvtest::norm for checks) and other conflict functions - added missing license headers	7 years ago
Vitaly Tuzov	12ea8477a3	bitexact gaussianblur implementation (#10345) ... * Bit-exact implementation of GaussianBlur smoothing * Added universal intrinsics based implementation for bit-exact CV_8U GaussianBlur smoothing. * Added parallel_for to evaluation of bit-exact GaussianBlur * Added custom implementations for 3x3 and 5x5 bit-exact GaussianBlur	7 years ago