Questions - OpenCV Q&A Forum

221

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2018-01-08 15:37:31 -0600 eudoxos

3.3 on OpenCL 1.1 device (static storage specifier)

254

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no

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no

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2017-12-25 16:08:54 -0600 justadudewhohacks

Opencv 3.4 detectMultiScale with ocl not performed on GPU

393

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answers

1

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2017-12-18 09:13:37 -0600 fabito

Error running inference on Single Shot Scale-invariant Face Detector pre trained model

1k

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no

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2017-12-14 02:39:20 -0600 mr.s.h.h

Convert cv::UMat to cv::ogl::Texture2D?

181

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no

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2017-12-07 20:20:51 -0600 Hank538

Generate .clb files when using OpenCL

opencl

583

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no

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2017-11-24 01:17:33 -0600 BAHRAMUDIN ADIL

Is there any working tutorial to show how to build OpenCV on Linux (CentOS) with GStreamer?

276

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2017-11-17 00:18:34 -0600 venkatesh-u

Installing OpenCV 3.2.0 with contrib modules in Ubuntu 14.04 LTS ends with "Configuring incomplete" instead of "completed configuring"

android#opencv

387

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2017-11-10 05:39:47 -0600 Alberl

How can i open OpenCL on iOS?

opencl
ios

578

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2017-10-21 15:27:00 -0600 yahoooooooo

Why is openCV so fast?

3k

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1

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2017-10-16 14:51:42 -0600 Ajay

What compiler flags make opencv even more faster?

297

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1

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2017-10-16 08:13:46 -0600 qudlaty

Problem with MOG2 OCL test

1k

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2

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2017-10-16 15:50:14 -0600 ossyaritoori

Why self compiled Opencv is slower than apt-get package?

858

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2017-10-13 05:59:17 -0600 berak

3.3 Build with VS2015 Errors

133

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

OpenCL version HOG descriptors change among executions with same input

opencl
HOG

2k

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2017-09-28 03:59:34 -0600 berak

OpenCV3.1 & opencv_contrib3.1 install in Ubuntu

c++#opencv

254

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2017-09-27 10:46:14 -0600 berak

videoCapture::open doesn't see default camera

videocapture

1k

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2017-09-22 09:45:15 -0600 Lubagov

OpenCV 3.3 setNumThreads(0) bug

637

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2017-09-22 09:22:41 -0600 Rofreli

Problems with CMAKE and OpenCL

902

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2017-09-21 04:47:25 -0600 haoge

Why the cvtColor use a lot of CPU when process UMat in opencl gpu mode

668

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2017-09-20 10:46:47 -0600 Major Squirrel

Assertion failed (u->origdata == data) in deallocate, using OpenCL

181

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answers

2

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2017-09-12 02:17:49 -0600 mihaibujanca

Module directory structure

447

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2017-08-23 06:41:56 -0600 antithing

Unknown crash in ocl.cpp

1k

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2017-08-21 08:39:52 -0600 berak

descriptorMatcher (BruteForce-Hamming) with OpenCL

opencl

283

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no

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2017-08-12 22:59:19 -0600 Uma

/ libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x4

android#opencv

544

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2017-08-12 22:53:46 -0600 Uma

clGetPlatformIds is failed for Mobile GPU (Adreno 405)

android#opencv

1k

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2017-08-03 04:32:14 -0600 Raki

Matplotlib to replace imshow()

569

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2017-07-25 09:42:48 -0600 berak

Building OpenCV Visual Studio 14 2015 Unicode Errors

629

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2017-07-23 22:54:20 -0600 reid

DMA directly into UMat data

150

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no

answers

-1

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2017-07-17 09:12:39 -0600 dab

Before openning the image using OpenCV, I'm trying to create a region groing algorithm using OpenCL. The problem is to find how i can fix the starting point pixel (germ) in this image and transform these steps in OpenCL. Thanks in advance

algorithmopencl

378

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2017-07-03 05:52:41 -0600 PeterSupan

370 questions

3.3 on OpenCL 1.1 device (static storage specifier)

Opencv 3.4 detectMultiScale with ocl not performed on GPU

Error running inference on Single Shot Scale-invariant Face Detector pre trained model

Convert cv::UMat to cv::ogl::Texture2D?

Generate .clb files when using OpenCL

Is there any working tutorial to show how to build OpenCV on Linux (CentOS) with GStreamer?

Installing OpenCV 3.2.0 with contrib modules in Ubuntu 14.04 LTS ends with "Configuring incomplete" instead of "completed configuring"

How can i open OpenCL on iOS?

Why is openCV so fast?

What compiler flags make opencv even more faster?

Problem with MOG2 OCL test

Why self compiled Opencv is slower than apt-get package?

3.3 Build with VS2015 Errors

OpenCL version HOG descriptors change among executions with same input

OpenCV3.1 & opencv_contrib3.1 install in Ubuntu

videoCapture::open doesn't see default camera

OpenCV 3.3 setNumThreads(0) bug

Problems with CMAKE and OpenCL

Why the cvtColor use a lot of CPU when process UMat in opencl gpu mode

Assertion failed (u->origdata == data) in deallocate, using OpenCL

Module directory structure

Unknown crash in ocl.cpp

descriptorMatcher (BruteForce-Hamming) with OpenCL

/ libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x4

clGetPlatformIds is failed for Mobile GPU (Adreno 405)

Matplotlib to replace imshow()

Building OpenCV Visual Studio 14 2015 Unicode Errors

DMA directly into UMat data

Before openning the image using OpenCV, I'm trying to create a region groing algorithm using OpenCL. The problem is to find how i can fix the starting point pixel (germ) in this image and transform these steps in OpenCL. Thanks in advance

Use OpenCL CPU Backend for custom kernel (Opencv 3.2)

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