Questions - OpenCV Q&A Forum

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2017-04-28 06:35:33 -0600 TADRIAN

OpenCV Featuredetection with OpenCL

151

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2017-04-29 06:53:48 -0600 lovaj

How to check which GaussianBlur version is used in OpenCV?

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2017-05-11 12:14:01 -0600 john_turnbull

Ubuntu 16.04 Python after install OpenCV 3.1 and OpenCV_contrib 3.1, some extra modules are missing like Tracking and sfm

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1

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2017-05-17 18:48:51 -0600 philboske

Some resolutions cause segmentation faults in DISOpticalFlow()

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2017-05-26 13:07:46 -0600 Elliot_

How can I deal with cv::matchTemplate crashing for large images?

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2017-06-06 16:55:41 -0600 ririgo

Corrupt JPEG data error when using yuyv webcam

videocapture

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2017-06-28 03:26:50 -0600 scobbing

Error with cuda::VideoWriter

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2017-06-29 02:59:46 -0600 berak

region growing with opencl

opencl

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

Use OpenCL CPU Backend for custom kernel (Opencv 3.2)

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-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

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

DMA directly into UMat data

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

Building OpenCV Visual Studio 14 2015 Unicode Errors

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

Matplotlib to replace imshow()

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

clGetPlatformIds is failed for Mobile GPU (Adreno 405)

android#opencv

279

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

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

android#opencv

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

descriptorMatcher (BruteForce-Hamming) with OpenCL

opencl

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

Unknown crash in ocl.cpp

174

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2

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

Module directory structure

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

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

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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

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

Problems with CMAKE and OpenCL

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

OpenCV 3.3 setNumThreads(0) bug

252

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

videoCapture::open doesn't see default camera

videocapture

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no

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

OpenCV3.1 & opencv_contrib3.1 install in Ubuntu

c++#opencv

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no

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

OpenCL version HOG descriptors change among executions with same input

opencl
HOG

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no

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

3.3 Build with VS2015 Errors

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1

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

Problem with MOG2 OCL test

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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?

988

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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?

573

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

370 questions

OpenCV Featuredetection with OpenCL

How to check which GaussianBlur version is used in OpenCV?

Ubuntu 16.04 Python after install OpenCV 3.1 and OpenCV_contrib 3.1, some extra modules are missing like Tracking and sfm

Some resolutions cause segmentation faults in DISOpticalFlow()

How can I deal with cv::matchTemplate crashing for large images?

Corrupt JPEG data error when using yuyv webcam

Error with cuda::VideoWriter

region growing with opencl

Use OpenCL CPU Backend for custom kernel (Opencv 3.2)

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

DMA directly into UMat data

Building OpenCV Visual Studio 14 2015 Unicode Errors

Matplotlib to replace imshow()

clGetPlatformIds is failed for Mobile GPU (Adreno 405)

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

descriptorMatcher (BruteForce-Hamming) with OpenCL

Unknown crash in ocl.cpp

Module directory structure

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

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

Problems with CMAKE and OpenCL

OpenCV 3.3 setNumThreads(0) bug

videoCapture::open doesn't see default camera

OpenCV3.1 & opencv_contrib3.1 install in Ubuntu

OpenCL version HOG descriptors change among executions with same input

3.3 Build with VS2015 Errors

Problem with MOG2 OCL test

What compiler flags make opencv even more faster?

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

Why is openCV so fast?

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