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21 Commits

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.
 2019-12-09 14:54:06 +03:00
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
 2018-02-03 19:39:47 +00:00
Vadim Pisarevsky
69a6765bf7 Merge pull request #10387 from terfendail:resize23_perftest 2017-12-22 13:26:05 +00:00
Vitaly Tuzov
b6fe4cc807 Added performance tests for linear resize of 2 and 3-channel images 2017-12-20 18:11:21 +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
Vitaly Tuzov
22fcbaed64 Added performance test for nearest neighbor resize 2017-09-22 12:34:58 +03:00
Alexander Alekhin
a4a47b538c build: detect Android via '__ANDROID__' macro 
https://sourceforge.net/p/predef/wiki/OperatingSystems
 2017-07-10 12:43:59 +03:00
Roman Donchenko
dcaf923517 Merge remote-tracking branch 'origin/2.4' 
Conflicts:
	3rdparty/ffmpeg/ffmpeg_version.cmake
	cmake/OpenCVFindLibsGrfmt.cmake
	cmake/templates/cvconfig.h.cmake
	modules/bioinspired/doc/retina/index.rst
	modules/calib3d/doc/camera_calibration_and_3d_reconstruction.rst
	modules/calib3d/src/precomp.hpp
	modules/contrib/src/inputoutput.cpp
	modules/contrib/src/precomp.hpp
	modules/core/include/opencv2/core/internal.hpp
	modules/core/include/opencv2/core/types_c.h
	modules/core/src/drawing.cpp
	modules/core/src/precomp.hpp
	modules/core/src/system.cpp
	modules/features2d/doc/common_interfaces_of_descriptor_matchers.rst
	modules/features2d/doc/common_interfaces_of_feature_detectors.rst
	modules/features2d/include/opencv2/features2d/features2d.hpp
	modules/features2d/src/precomp.hpp
	modules/flann/src/precomp.hpp
	modules/gpu/doc/camera_calibration_and_3d_reconstruction.rst
	modules/gpu/doc/image_filtering.rst
	modules/gpu/doc/image_processing.rst
	modules/gpu/doc/video.rst
	modules/gpu/perf/perf_imgproc.cpp
	modules/gpu/perf4au/main.cpp
	modules/gpu/src/imgproc.cpp
	modules/gpu/src/precomp.hpp
	modules/gpu/test/test_imgproc.cpp
	modules/highgui/CMakeLists.txt
	modules/highgui/test/test_precomp.hpp
	modules/imgproc/doc/structural_analysis_and_shape_descriptors.rst
	modules/imgproc/src/precomp.hpp
	modules/java/generator/src/cpp/Mat.cpp
	modules/legacy/src/precomp.hpp
	modules/ml/doc/k_nearest_neighbors.rst
	modules/ml/src/precomp.hpp
	modules/nonfree/doc/feature_detection.rst
	modules/nonfree/src/precomp.hpp
	modules/objdetect/include/opencv2/objdetect/objdetect.hpp
	modules/objdetect/src/cascadedetect.cpp
	modules/objdetect/src/hog.cpp
	modules/objdetect/src/precomp.hpp
	modules/objdetect/test/test_latentsvmdetector.cpp
	modules/ocl/src/hog.cpp
	modules/ocl/src/opencl/objdetect_hog.cl
	modules/ocl/src/precomp.hpp
	modules/photo/src/precomp.hpp
	modules/stitching/src/precomp.hpp
	modules/superres/perf/perf_precomp.hpp
	modules/superres/src/optical_flow.cpp
	modules/superres/src/precomp.hpp
	modules/superres/test/test_precomp.hpp
	modules/ts/include/opencv2/ts.hpp
	modules/video/src/precomp.hpp
	modules/videostab/src/precomp.hpp
	modules/world/src/precomp.hpp
 2013-08-06 13:56:49 +04:00
Andrey Pavlenko
3a0e26b89d adding/tuning multiple run for perf tests failing due to big deviation (functions using TBB can work so) 2013-07-26 17:27:31 +04:00
Roman Donchenko
4cf9990d4e Merge remote-tracking branch 'origin/2.4' into merge-2.4 
Conflicts:
	doc/tutorials/definitions/noContent.rst
	doc/tutorials/gpu/gpu-basics-similarity/gpu-basics-similarity.rst
	doc/tutorials/introduction/android_binary_package/dev_with_OCV_on_Android.rst
	doc/tutorials/introduction/how_to_write_a_tutorial/how_to_write_a_tutorial.rst
	modules/core/include/opencv2/core/core.hpp
	modules/core/include/opencv2/core/internal.hpp
	modules/core/include/opencv2/core/version.hpp
	modules/gpu/CMakeLists.txt
	modules/highgui/perf/perf_output.cpp
	modules/highgui/test/test_video_io.cpp
	modules/ocl/include/opencv2/ocl/ocl.hpp
	modules/ocl/perf/main.cpp
	modules/ocl/src/hog.cpp
	modules/ocl/src/initialization.cpp
	modules/ocl/src/moments.cpp
	modules/ocl/src/opencl/moments.cl
	modules/ocl/test/main.cpp
	modules/ocl/test/test_moments.cpp
	modules/python/test/test.py
	modules/ts/include/opencv2/ts/ts_perf.hpp
	modules/ts/src/precomp.hpp
	modules/ts/src/ts_perf.cpp
 2013-07-03 19:53:21 +04:00
Sergei Nosov
29955620e0 multiruns added to avoid the 'unreliable results' error 2013-06-26 15:07:39 +04:00
Andrey Kamaev
61079547f0 Merge branch '2.4' 2013-02-01 14:59:40 +04:00
Anna Kogan
ed4c687d45 Increased time limits, eliminated extra params 2013-01-31 16:18:52 +04:00
Andrey Kamaev
f4e27bcbbc Merge branch '2.4' 2013-01-25 16:30:36 +04:00
Andrey Pavlenko
81721d0dce enabling sanity checks for warp and resize functions on Android 
- add syntetic images generation function to ts
- use generated syntetic images
 2013-01-23 17:25:30 +04:00
Ilya Lavrenov
d1ca934115 sse2 version of resize area fast for types CV_(8, 16)UC(1, 3, 4) 2012-12-11 15:14:50 +04:00
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
 2012-11-29 18:21:22 +04:00
Anna Kogan
8877066846 increased time-limits 2012-11-28 18:17:33 +04:00
OpenCV Buildbot
04384a71e4 Normalize line endings and whitespace 2012-10-17 15:32:23 +04:00
Ilya Lavrenov
92795ba476 parallel version of remap, resize, warpaffine, warpPerspective. Some optimization for 2x decimation in resize algorithm 2012-08-22 11:49:21 +04:00
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 2011-12-29 16:46:16 +00:00