Questions - OpenCV Q&A Forum

348

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no

answers

no

votes

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

region growing with opencl

opencl

722

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1

answer

no

votes

2017-06-29 20:03:36 -0600 Tetragramm

Place data of Mat at a specific memoryarea pointed to by a pointer

2k

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no

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no

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2017-07-03 04:50:14 -0600 doudou2017

How to solve CMake Warning at cmake/OpenCVPackaging.cmake:23 (message): CPACK_PACKAGE_VERSION does not match version provided by version.hpp header! [closed]

opencv

377

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no

answers

no

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

Use OpenCL CPU Backend for custom kernel (Opencv 3.2)

7k

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1

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no

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2017-07-04 00:40:04 -0600 berak

How does VideoCapture from USB Webcam on Windows using DirectShow and MJPG work?

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

1k

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1

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no

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2017-07-19 02:52:05 -0600 Uma

ALL_BUILD error when building OpenCV from source

616

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no

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

DMA directly into UMat data

565

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no

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no

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

Building OpenCV Visual Studio 14 2015 Unicode Errors

1k

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1

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no

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2017-07-31 08:48:36 -0600 bthomas

OpenCV 3.2.0 : Unable to open and read a video

videofile

1k

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no

answers

no

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

Matplotlib to replace imshow()

701

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1

answer

2

votes

2017-08-10 06:36:27 -0600 Kostas

cv::solve OpenCV 3.1 vs. 3.2 speed

performance

534

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no

answers

no

votes

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

clGetPlatformIds is failed for Mobile GPU (Adreno 405)

android#opencv

283

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no

answers

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

1k

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no

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no

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

descriptorMatcher (BruteForce-Hamming) with OpenCL

opencl

408

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no

answers

no

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

Unknown crash in ocl.cpp

2k

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no

answers

1

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2017-08-29 03:13:54 -0600 kmusoy

Successfully built opencv 3.3.0 but no cv2.so found [closed]

3k

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2

answers

2

votes

2017-09-06 13:48:28 -0600 matman

Building an executable which uses opencv that can be run on another computer

178

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no

answers

2

votes

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

Module directory structure

665

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no

answers

no

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

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

890

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no

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no

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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

627

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no

answers

no

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

Problems with CMAKE and OpenCL

1k

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no

answers

no

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

OpenCV 3.3 setNumThreads(0) bug

4k

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1

answer

no

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2017-09-25 20:25:00 -0600 breadbugs

OpenCV 3.2.0 cannnot access to SURF/SIFT in xfeatures2d

254

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no

answers

no

votes

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

videoCapture::open doesn't see default camera

videocapture

2k

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no

answers

no

votes

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

OpenCV3.1 & opencv_contrib3.1 install in Ubuntu

c++#opencv

999

views

1

answer

1

vote

2017-10-11 07:19:36 -0600 StevenPuttemans

HAAR Cascade opencl and Nvidia GPU - Code question

12k

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1

answer

no

votes

2017-10-11 10:35:26 -0600 mfisher

Unable to build opencv 3.3.0 with cuda 9.0 on linux

130

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no

answers

no

votes

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

OpenCL version HOG descriptors change among executions with same input

opencl
HOG

1k

views

1

answer

1

vote

2017-10-13 05:49:01 -0600 mshabunin

Is there an advantage to building opencv yourself?

build

783 questions

region growing with opencl

Place data of Mat at a specific memoryarea pointed to by a pointer

How to solve CMake Warning at cmake/OpenCVPackaging.cmake:23 (message): CPACK_PACKAGE_VERSION does not match version provided by version.hpp header! [closed]

Use OpenCL CPU Backend for custom kernel (Opencv 3.2)

How does VideoCapture from USB Webcam on Windows using DirectShow and MJPG work?

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

ALL_BUILD error when building OpenCV from source

DMA directly into UMat data

Building OpenCV Visual Studio 14 2015 Unicode Errors

OpenCV 3.2.0 : Unable to open and read a video

Matplotlib to replace imshow()

cv::solve OpenCV 3.1 vs. 3.2 speed

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

Successfully built opencv 3.3.0 but no cv2.so found [closed]

Building an executable which uses opencv that can be run on another computer

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

OpenCV 3.2.0 cannnot access to SURF/SIFT in xfeatures2d

videoCapture::open doesn't see default camera

OpenCV3.1 & opencv_contrib3.1 install in Ubuntu

HAAR Cascade opencl and Nvidia GPU - Code question

Unable to build opencv 3.3.0 with cuda 9.0 on linux

OpenCL version HOG descriptors change among executions with same input

Is there an advantage to building opencv yourself?

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