First time here? Check out the FAQ!
Hi there! Please sign in
help
faq
tags
users
badges
This forum is disabled, please visit
https://forum.opencv.org
ALL
UNANSWERED
Ask Your Question
RSS
Sort by »
relevance
date ▼
activity
answers
votes
783 questions
Tagged
254
views
no
answers
no
votes
2017-09-27 10:46:14 -0600
berak
videoCapture::open doesn't see default camera
videocapture
12k
views
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
CUDA
opencv3.3
cmake
install
1k
views
no
answers
no
votes
2017-09-22 09:45:15 -0600
Lubagov
OpenCV 3.3 setNumThreads(0) bug
setNumThreads
cascadeclassifier
opencv
3.3
628
views
no
answers
no
votes
2017-09-22 09:22:41 -0600
Rofreli
Problems with CMAKE and OpenCL
cmake
opencl
rules
opencv
893
views
no
answers
no
votes
2017-09-21 04:47:25 -0600
haoge
Why the cvtColor use a lot of CPU when process UMat in opencl gpu mode
opencl
UMat
CPU
usage
665
views
no
answers
no
votes
2017-09-20 10:46:47 -0600
Major Squirrel
Assertion failed (u->origdata == data) in deallocate, using OpenCL
opencl
gpu
embedded
memory
4k
views
1
answer
no
votes
2017-09-25 20:25:00 -0600
breadbugs
OpenCV 3.2.0 cannnot access to SURF/SIFT in xfeatures2d
opencv_contrib
SIFT
ubuntu16.04
qt
180
views
no
answers
2
votes
2017-09-12 02:17:49 -0600
mihaibujanca
Module directory structure
modules
directory
CUDA
headers
3k
views
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
executable
static_linking
2k
views
no
answers
1
vote
2017-08-29 03:13:54 -0600
kmusoy
Successfully built opencv 3.3.0 but no cv2.so found [closed]
cv2.so
python
opencv3.3.0
415
views
no
answers
no
votes
2017-08-23 06:41:56 -0600
antithing
Unknown crash in ocl.cpp
crash
error
ocl
opencl
1k
views
no
answers
no
votes
2017-08-21 08:39:52 -0600
berak
descriptorMatcher (BruteForce-Hamming) with OpenCL
opencl
357
views
1
answer
no
votes
2020-08-24 22:36:12 -0600
sjhalayka
OpenCL Support for QUALCOMM GPU
Opencv#opencl
283
views
no
answers
no
votes
2017-08-12 22:59:19 -0600
Uma
/ libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x4
android#opencv
536
views
no
answers
no
votes
2017-08-12 22:53:46 -0600
Uma
clGetPlatformIds is failed for Mobile GPU (Adreno 405)
android#opencv
702
views
1
answer
2
votes
2017-08-10 06:36:27 -0600
Kostas
cv::solve OpenCV 3.1 vs. 3.2 speed
performance
1k
views
no
answers
no
votes
2017-08-03 04:32:14 -0600
Raki
Matplotlib to replace imshow()
matplotlib
opencv
python3
1k
views
1
answer
no
votes
2017-07-31 08:48:36 -0600
bthomas
OpenCV 3.2.0 : Unable to open and read a video
videofile
567
views
no
answers
no
votes
2017-07-25 09:42:48 -0600
berak
Building OpenCV Visual Studio 14 2015 Unicode Errors
visual-studio-2015
build
unicode
620
views
no
answers
no
votes
2017-07-23 22:54:20 -0600
reid
DMA directly into UMat data
UMat
gpu
DMA
150
views
no
answers
-1
votes
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
views
1
answer
no
votes
2017-07-19 02:52:05 -0600
Uma
ALL_BUILD error when building OpenCV from source
ALL_BUILD
THDiskFile
cmake-gui
error
LNK1104
7k
views
1
answer
no
votes
2017-07-04 00:40:04 -0600
berak
How does VideoCapture from USB Webcam on Windows using DirectShow and MJPG work?
mjpg
mjpeg
webcam
videocapture
directshow
377
views
no
answers
no
votes
2017-07-03 05:52:41 -0600
PeterSupan
Use OpenCL CPU Backend for custom kernel (Opencv 3.2)
opencl
custom
kernel
CPU
backend
2k
views
no
answers
no
votes
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
722
views
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
opencl
pointer
CvMat
352
views
no
answers
no
votes
2017-06-29 02:59:46 -0600
berak
region growing with opencl
opencl
1k
views
no
answers
no
votes
2017-06-28 03:26:50 -0600
scobbing
Error with cuda::VideoWriter
CUDA
CreateVideoWriter
852
views
no
answers
no
votes
2017-06-22 12:34:24 -0600
danieltak
Error 'Exception thrown: write access violation' with sample objectDetection.cpp [closed]
build_failure
objectDetection.cpp
types.hpp
373
views
1
answer
no
votes
2017-06-18 01:49:55 -0600
berak
'm trying to implement an image processing algorithm using OpenCL,for that i I read one image using OpenCV. The problem is how transform the data into OpenCL
opencv
opencl
« previous
1
...
9
10
11
12
13
...
27
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
opencl
×9
opencv
×5
CUDA
×3
android#opencv
×2
cmake
×2
CPU
×2
error
×2
gpu
×2
UMat
×2
videocapture
×2
3.3
×1
algorithmopencl
×1
ALL_BUILD
×1
backend
×1
build
×1
build_failure
×1
cascadeclassifier
×1
cmake-gui
×1
crash
×1
CreateVideoWriter
×1
custom
×1
cv2.so
×1
CvMat
×1
directory
×1
directshow
×1
DMA
×1
embedded
×1
executable
×1
headers
×1
install
×1
kernel
×1
LNK1104
×1
matplotlib
×1
memory
×1
mjpeg
×1
mjpg
×1
modules
×1
objectDetection.cpp
×1
ocl
×1
opencv3.3
×1
opencv3.3.0
×1
opencv_contrib
×1
Opencv#opencl
×1
performance
×1
pointer
×1
python
×1
python3
×1
qt
×1
rules
×1
setNumThreads
×1
Copyright
OpenCV foundation
, 2012-2018. Content on this site is licensed under a
Creative Commons Attribution Share Alike 3.0
license.
Powered by Askbot version 0.10.2
Please note: OpenCV answers requires javascript to work properly, please enable javascript in your browser,
here is how
dummy
×
