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370 questions

392
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2019-12-29 23:20:22 -0600 jaylo

OpenCV Blender causes CL_BUILD_PROGRAM_FAILURE

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2
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2018-08-26 22:23:05 -0600 eatcosmos

Is findContours fast enough ?

972
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2014-09-28 18:47:28 -0600 Echo88

ocl::cvtcolor Bayer to RGB supported in OpenCV 3.0?

482
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1
vote
2015-01-23 00:16:07 -0600 udayshukla14

OpenCL set device

453
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2015-12-09 11:58:16 -0600 Honest_Trefor

MatchTemplate OCL and CPU Timing

2k
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2016-01-10 12:11:19 -0600 tstannar

Making OpenCV: Error hal undeclared

1k
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2016-03-25 04:11:10 -0600 milLII3yway

Custom OpenCL Kernel in OpenCV 3.x

133
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2017-10-11 14:02:57 -0600 Winnie

OpenCL version HOG descriptors change among executions with same input

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2018-12-13 00:04:18 -0600 Rakshith

UMat dealloc problem.

360
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answers
1
vote
2019-01-02 00:20:08 -0600 nobot

if I use UMat , it is giving exception error

227
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2020-09-25 05:34:38 -0600 Supreeth Kumar Y P

How to update UMat when Mat is updated?

224
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2019-06-02 06:26:22 -0600 comar

Error on ocl::filter2D

458
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2015-07-16 19:08:40 -0600 unxnut flag of United States of America

Exception deep inside OpenCV code

481
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1
vote
2014-04-03 14:47:09 -0600 muser

ocl:detectmultiscale error with traincascade

192
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votes
2016-12-04 15:23:34 -0600 LBerger

Writting a videocapture driver

199
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votes
2016-01-23 01:20:52 -0600 berak

Capture Mat copy to UMat fails on 32-bit app, works on 64-bit, timing?

222
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votes
2015-09-19 11:30:19 -0600 lgos

OpenCV 3 and CUDA

142
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2015-09-27 12:32:42 -0600 valentine

Using GPU with OpenCV 3.0

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2014-03-19 18:35:41 -0600 vulcanVision

OpenCL: failed to load opencl runtime

2k
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4
votes
2013-07-19 13:08:29 -0600 chutsu

CUDA vs OpenCL which does OpenCV support better?

563
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2014-02-07 17:23:30 -0600 Stele

OpenCL support for cv::dct() and cv::idct()?

421
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2
votes
2015-06-25 20:51:06 -0600 Apolon

OpenCL Multiple umat, Multiple operations performance

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2015-10-13 02:35:00 -0600 chankit

Converting from YUV420 to NV12 format with OpenCL acceleration

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