Alexander Alekhin
3266ac7667
core(kmeans): bailout if can't select cluster center
2019-11-22 14:40:02 +00:00
Alexander Alekhin
4a6888ccf6
imgproc: fix kmeans() call from grabCut()
2019-06-25 13:42:04 +03:00
Hamdi Sahloul
5d54def264
Add semicolons after CV_INSTRUMENT macros
2018-09-14 06:45:31 +09:00
woody.chow
07c6b0a8df
Replace naive normL2Sqr with hal::normL2Sqr_ for better performance
2018-09-06 17:43:07 +09:00
Alexander Alekhin
b09a4a98d4
opencv: Use cv::AutoBuffer<>::data()
2018-07-04 19:11:29 +03:00
Alexander Alekhin
9111538bfb
core: apply CV_OVERRIDE/CV_FINAL
2018-03-28 17:57:59 +03:00
Aleksandr Tischenko
22ecdd16ef
Merge pull request #11101 from lamantine:fix_11100
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* fixed bug #11100 Integer overflow in kmeans
* fixed integer overflow in other divUp-s in kmeans code
fixed warning about size_t to double conversion
2018-03-18 15:11:42 +03:00
Alexander Alekhin
90aac764dd
core: kmeans refactoring
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- reduce scope of i,k,j variables
- use cv::AutoBuffer
- template<bool onlyDistance> class KMeansDistanceComputer
- eliminate manual unrolling: CV_ENABLE_UNROLLED
2018-01-22 14:26:41 +03:00
Alexander Alekhin
46470d92a0
core: fix kmeans multi-threaded performance
2018-01-22 14:26:41 +03:00
Rostislav Vasilikhin
bab86d65cb
Merge pull request #10258 from savuor:fix/kmeans_channels
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* kmeans: number of channels in _centers fixed
* fixedType() is checked now
2017-12-15 21:48:48 +03:00
Alexander Alekhin
006966e629
trace: initial support for code trace
2017-06-26 17:07:13 +03:00
Maksim Shabunin
b417b4dbee
KMeans improvement
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- fixed returned compactness value
- added centers drawing to the example app
- added compactness test
2017-01-31 12:05:08 +03:00
Pavel Vlasov
30a6cee2fe
Instrumentation for OpenCV API regions and IPP functions;
2016-08-19 18:10:03 +03:00
Philipp Hasper
14c0bfce2f
kmeans and one-dimensional vectors
...
Clustering one-dimensional data was only possible when storing it column-based. But a std::vector is interpreted as matrix with height=1
Additionally, made conditionals more readable
2015-08-21 14:20:00 +02:00
Vadim Pisarevsky
ee11a2d266
fully implemented SSE and NEON cases of intrin.hpp; extended the HAL with some basic math functions
2015-04-16 23:00:26 +03:00
Dmitry-Me
2fb4178f7c
Reduce variable scope
2015-03-06 10:17:37 +03:00
Vadim Pisarevsky
257463719b
removed optim module; moved its functionality to core and photo modules; moved drawing functions from core to imgproc. Removed FilterEngine etc. from public API
2014-08-14 12:50:07 +04:00
