9 Commits

Author	SHA1	Message	Date
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
Alexander Alekhin	7ecdcf6ca6	build: GCC9 compilation	2019-11-12 18:49:34 +03:00
Alexander Alekhin	b99c9145bf	imgproc: dispatch smooth	2019-03-11 13:54:12 +00:00
Vitaly Tuzov	ea882d58c6	Added CV_ALWAYS_INLINE macro	2019-01-11 22:40:35 +03:00
Alexander Alekhin	9166e6052b	imgproc: fixed fixedpoint coding style ... - fixed wrong condition (always true) - replaced unnecessary shift operation: '>> 63' to '< 0' - used CV_BIG_INT()/CV_BIG_UINT() macros	2018-04-25 17:33:57 +03:00
Alexander Alekhin	469dc6ac42	imgproc: fix fixed point build ... avoid using of templated 'operator T ()'	2018-04-25 16:34:44 +03:00
Vitaly Tuzov	62cf71002e	Bit-exact GaussianBlur performance update (#10898) ... * Added custom implementation for NxN bit-exact GaussianBlur * Reworked fixedpoint interface a bit * Reworked horizontal line estimation for bit-exact GaussianBlur * Reworked vertical line estimation for bit-exact GaussianBlur * Updated range estimation for vectorized part of bit-exact GaussianBlur evaluation	2018-04-11 18:07:48 +03:00
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	2018-01-22 13:26:32 +03:00
Vitaly Tuzov	51cb56ef2c	Implementation of bit-exact resize. Internal calls to linear resize updated to use bit-exact version. (#9468)	2017-12-13 15:00:38 +03:00