Pierre Chatelier
ebb6915e58
Merge pull request #21645 from chacha21:applyColorMap_8UC1_optimized
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Optimize cv::applyColorMap() for simple case
* Optimize cv::applyColorMap() for simple case
PR for 21640
For regular cv::Mat CV_8UC1 src, applying the colormap is simpler than calling the cv::LUT() mechanism.
* add support for src as CV_8UC3
src as CV_8UC3 is handled with a BGR2GRAY conversion, the same optimized code being used afterwards
* code style
rely on cv::Mat.ptr() to index data
* Move new implementation to ColorMap::operator()
Changes as suggested by reviewer
* style
improvements suggsted by reviewer
* typo
* tune parallel work
* better usage of parallel_for_
use nstripes parameter of parallel_for_
assume _lut is continuous to bring faster pixel indexing
optimize src/dst access by contiguous rows of pixels
do not locally copy the LUT any more, it is no more relevant with the new optimizations
2022-03-01 19:55:00 +03:00
Alexander Alekhin
5a86592e93
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2022-02-19 21:04:35 +00:00
Artem Saratovtsev
1890157faa
Merge pull request #21635 from DumDereDum:issue_21595_3.4
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Issue 21595 fix 3.4 branch
* bug fix; add test
* rewrite tests avoiding vector in tests
2022-02-18 14:58:58 +00:00
Alexander Alekhin
19926e2979
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2022-02-11 17:32:37 +00:00
Suleyman TURKMEN
ffee1a4126
fix cv::floodfill() for calling it with an empty mask
2022-02-08 15:28:19 +03:00
lamm45
5064b6f747
Update LineIterator documentation
2022-02-06 18:42:26 -05:00
Alexander Alekhin
d573472a86
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2022-01-31 12:53:45 +00:00
Vincent Rabaud
abb5c9fd92
Fix undefined behavior in line drawing.
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Left shift of negative values is undefined.
2022-01-25 11:37:39 +01:00
Alexander Alekhin
aebb65e983
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2022-01-12 13:26:10 +00:00
Stefano Allegretti
c685293297
Fix #21366
2022-01-03 18:15:09 +01:00
Alexander Alekhin
80492d663e
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-12-18 16:19:06 +00:00
Stefano Allegretti
91817bffe1
Merge pull request #21275 from stal12:CCL_improvements
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Improve CCL with new algorithms and tests
* Improve CCL with new algorithms and tests
* Split CCL test into dedicated tests cases
2021-12-17 19:36:57 +00:00
eplankin
175bcb1734
Merge pull request #21258 from eplankin:fix_threshold_to_zero_ipp_bug
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Fixed threshold(THRESH_TOZERO) at imgproc(IPP)
* Fixed #16085 : imgproc(IPP): wrong result from threshold(THRESH_TOZERO)
* 1. Added test cases with float where all bits of mantissa equal 1, min and max float as inputs
2. Used nextafterf instead of cast to hex
* Used float value in test instead of hex and casts
* Changed input value in test
2021-12-17 13:31:37 +00:00
Vincent Rabaud
3da17c42a4
Use NaN-safe clip function.
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This is to prevent more NaN to int conversions like in #21111 .
2021-12-16 11:34:04 +01:00
Alexander Alekhin
299f9837b7
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-12-15 16:38:56 +00:00
Alexander Alekhin
35f27d0d3e
Merge pull request #21257 from alalek:imgproc_cvtcolor_lab_fix_nan
2021-12-14 16:59:07 +00:00
Alexander Alekhin
72c55b56f2
imgproc: catch NaNs in clip(), use table index debug check
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- no NaN propagation guarantee
2021-12-14 15:31:51 +00:00
Vincent Rabaud
542b3e8a64
Fix harmless signed integer overflow.
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When computing:
t1 = (bayer[1] + bayer[bayer_step] + bayer[bayer_step+2] + bayer[bayer_step*2+1])*G2Y;
there is a T (unsigned short or char) multiplied by an int which can overflow.
Then again, it is stored to t1 which is unsigned so the overflow disappears.
Keeping all unsigned is safer.
2021-12-13 23:43:49 +01:00
Alexander Alekhin
d24befa0bc
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-12-11 15:18:57 +00:00
Alexander Alekhin
04020f391a
Merge pull request #21193 from alalek:imgproc_test_bitexact_cvtcolor_yuv
2021-12-10 16:11:06 +00:00
Alexander Alekhin
659cf7249e
imgproc(ocl): fix resizeLN, avoid integer overflow
2021-12-09 20:30:26 +00:00
Alexander Alekhin
0c0b1ec9ae
imgproc(test): add bit-exact tests for YUV cvtColor conversions
2021-12-04 04:36:57 +00:00
Alexander Alekhin
8b4fa2605e
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-12-03 12:32:49 +00:00
Vincent Rabaud
1a1a7bbbfd
Merge pull request #21112 from vrabaud:3.4_luv_overflow
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* Fix integer overflow in cv::Luv2RGBinteger::process.
For LL=49, uu=205, vv=23, we end up with x=7373056 and y=458
which overflows y*x.
* imgproc(test): adjust test parameters to cover SIMD code
2021-12-01 15:46:03 +03:00
yuki takehara
a6277370ca
Merge pull request #21107 from take1014:remove_assert_21038
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resolves #21038
* remove C assert
* revert C header
* fix several points in review
* fix test_ds.cpp
2021-11-27 18:34:52 +00:00
Alexander Alekhin
ac4b592b4e
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-11-20 05:13:50 +00:00
zcx
f5de714451
Merge pull request #20987 from zcx-xxx:master
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* Update drawing.cpp
optimize FillEdgeCollection function
* Update drawing.cpp
optimize FillEdgeCollection，remove sort_flag
2021-11-19 18:57:07 +03:00
Vincent Rabaud
d4741eece1
Fix H clamping for very small negative values.
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In case of very small negative h (e.g. -1e-40), with the current implementation,
you will go through the first condition and end up with h = 6.f, and will miss
the second condition.
2021-11-19 16:34:09 +01:00
Alexander Alekhin
394e640909
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-11-13 15:11:30 +00:00
tv3141
cb286a66be
Merge pull request #21030 from tv3141:fix_seg_fault_houghlinespointset
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Fix seg fault houghlinespointset
* Clarify parameter doc for HoughLinesPointSet
* Fix seg fault.
* Add regression test.
* Fix latex typo
2021-11-10 22:15:38 +03:00
Alexander Alekhin
7842181b47
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-11-05 09:27:46 +00:00
Souriya Trinh
30d6766db4
Add conventional Bayer naming.
2021-11-02 20:17:57 +01:00
Alexander Alekhin
7b57df02a7
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-10-30 14:26:17 +00:00
Alexander Alekhin
d612c72405
build: fix MSVC-Clang warnings about unused parameters in stubs
2021-10-28 21:08:36 +00:00
Alexander Alekhin
6a2077cbd8
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-10-23 15:33:31 +00:00
Alexander Alekhin
aa11cc19e8
Merge pull request #20919 from berak:patch-1
2021-10-22 14:08:08 +00:00
berak
a6f5717567
resolves #20913
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imgproc: remove asserts for circles_ in HoughCircles
2021-10-22 15:07:57 +02:00
AleksandrPanov
d21622bef4
fix findMinEnclosingTriangle and add tests
2021-10-21 18:12:51 +03:00
Alexander Alekhin
31c40fa4cc
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-10-15 13:35:03 +00:00
Nicholas Ho
bd0732b1d0
Merge pull request #20740 from Nicholas-Ho-arm:3.4_SymmColumnVec_32f8u
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* Add SymmColumnVec_32f8u
* Fix double to float warnings
2021-10-15 11:47:53 +00:00
Yaniv Hollander
ac57be91e1
Merge pull request #20721 from YanivHollander:DocFixes
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Doc fixes
* Update imgproc.hpp
* Update imgproc.hpp
2021-10-09 15:43:50 +00:00
Alexander Alekhin
37c3f0d8a0
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-10-02 17:57:18 +00:00
Alexander Alekhin
48c985e775
Merge pull request #20797 from sturkmen72:restore_LSD
2021-10-02 17:50:38 +00:00
Suleyman TURKMEN
259c39a63a
additional changes
2021-10-02 13:34:56 +03:00
Alexander Alekhin
a0cf8c322d
Merge pull request #20793 from tomoaki0705:fixGaussianOverflow
2021-10-01 15:53:15 +00:00
Tomoaki Teshima
1e74f5850b
suppress GaussianBlur to generate empty images
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* sharp Gaussian kernel causes over flow and ends up in blank image
2021-10-01 23:17:02 +09:00
Suleyman TURKMEN
9b76872708
restore LSD
2021-10-01 16:23:16 +03:00
Cavendish-Koo
2f83c3b689
fix the bug of HoughlinesSDIV
2021-09-28 21:18:07 +08:00
Alexander Alekhin
24fcb7f813
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2021-09-25 17:50:00 +00:00
Nicholas Ho
236c64a17d
Merge pull request #20712 from Nicholas-Ho-arm:3.4_RowVec_8u32f
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* Add RowVec_8u32f
* Fix build errors in Linux x64 Debug and armeabi-v7a
* Reformat code to make it more clean and conventional
* Optimise with vx_load_expand_q()
2021-09-25 17:43:33 +00:00
