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Commit Graph

21 Commits (aa08900ac8c3399534d57f55b7e7b3b1a6d8c132)

Author	SHA1	Message	Date
Paul Murphy	a011035ed6	Merge pull request #15257 from pmur:resize ... * resize: HResizeLinear reduce duplicate work There appears to be a 2x unroll of the HResizeLinear against k, however the k value is only incremented by 1 during the unroll. This results in k - 1 duplicate passes when k > 1. Likewise, the final pass may not respect the work done by the vector loop. Start it with the offset returned by the vector op if implemented. Note, no vector ops are implemented today. The performance is most noticable on a linear downscale. A set of performance tests are added to characterize this. The performance improvement is 10-50% depending on the scaling. * imgproc: vectorize HResizeLinear Performance is mostly gated by the gather operations for x inputs. Likewise, provide a 2x unroll against k, this reduces the number of alpha gathers by 1/2 for larger k. While not a 4x improvement, it still performs substantially better under P9 for a 1.4x improvement. P8 baseline is 1.05-1.10x due to reduced VSX instruction set. For float types, this results in a more modest 1.2x improvement. * Update U8 processing for non-bitexact linear resize * core: hal: vsx: improve v_load_expand_q With a little help, we can do this quickly without gprs on all VSX enabled targets. * resize: Fix cn == 3 step per feedback Per feedback, ensure we don't overrun. This was caught via the failure observed in Test_TensorFlow.inception_accuracy.	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	b6fe4cc807	Added performance tests for linear resize of 2 and 3-channel images	7 years ago
Vitaly Tuzov	51cb56ef2c	Implementation of bit-exact resize. Internal calls to linear resize updated to use bit-exact version. (#9468)	7 years ago
Vitaly Tuzov	22fcbaed64	Added performance test for nearest neighbor resize	7 years ago
Alexander Alekhin	a4a47b538c	build: detect Android via '__ANDROID__' macro ... https://sourceforge.net/p/predef/wiki/OperatingSystems	8 years ago
Andrey Pavlenko	3a0e26b89d	adding/tuning multiple run for perf tests failing due to big deviation (functions using TBB can work so)	12 years ago
Sergei Nosov	29955620e0	multiruns added to avoid the 'unreliable results' error	12 years ago
Anna Kogan	ed4c687d45	Increased time limits, eliminated extra params	12 years ago
Andrey Pavlenko	81721d0dce	enabling sanity checks for warp and resize functions on Android ... - add syntetic images generation function to ts - use generated syntetic images	12 years ago
Ilya Lavrenov	d1ca934115	sse2 version of resize area fast for types CV_(8, 16)UC(1, 3, 4)	12 years ago
Alexander Smorkalov	f6ff2b87fa	Some perf tests on warping and resize disabled on Android ... MatInfo_Size_Size.resizeDownLinear MatInfo_Size_Size.resizeUpLinear TestWarpPerspectiveNear_t.WarpPerspectiveNear TestWarpPerspective.WarpPerspective	12 years ago
Anna Kogan	8877066846	increased time-limits	12 years ago
OpenCV Buildbot	81f826db2b	Normalize line endings and whitespace	12 years ago
OpenCV Buildbot	04384a71e4	Normalize line endings and whitespace	12 years ago
Ilya Lavrenov	92795ba476	parallel version of remap, resize, warpaffine, warpPerspective. Some optimization for 2x decimation in resize algorithm	12 years ago
Andrey Kamaev	65f5343ed5	Refactored performance tests. TEST_CYCLE macro is renamed to TEST_CYCLE_N; SIMPLE_TEST_CYCLE is renamed to TEST_CYCLE; from now 100 iterations are default for performance tests	13 years ago
Andrey Kamaev	683be58119	Added perf test for INTER_AREA resize	13 years ago
Andrey Kamaev	f937d68d60	Fixed build for x64 with sse2 disabled; several improvements in performance testing framework; enabled SANITY_CHECK() for performance tests	13 years ago
Andrey Kamaev	5cce038958	Performance testing branch is merged back into trunk	13 years ago