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 ▲
370 questions
Tagged
1k
views
no
answers
no
votes
2015-05-14 11:23:23 -0600
denials
Opencv 3.0 + Visual Studio 2013 VC12 + Cuda 7.0 + Windows 8.1: Error building
c++
opencv
CUDA7.0
install
error
VC12
965
views
no
answers
no
votes
2015-07-08 16:50:06 -0600
miro
Jar is not created
java
jar
build
4k
views
no
answers
no
votes
2015-08-05 04:59:05 -0600
Dum
opencv much slower in multithreading
c++
opencv
Multithreading
517
views
no
answers
no
votes
2015-08-29 14:02:50 -0600
franken
Erros whe uninstalling opencv 2.4.10
uninstall
opencv
cmake
make
ubuntu
1k
views
no
answers
no
votes
2015-11-08 06:51:18 -0600
genzm
installing opencv
install
undeclared
ffmpeg
2k
views
no
answers
no
votes
2015-12-11 13:11:15 -0600
Steve Hess
Memory leak in Mat::convertTo
Mat
UMat
memory
leak
3k
views
no
answers
no
votes
2016-02-22 07:49:51 -0600
berak
DLL load failed with opencv 3.1 and python 3.5
opencv
python
DLL
error
321
views
no
answers
no
votes
2016-06-03 04:16:53 -0600
VanGog
Where to get MAT sources and how configure it for CMAKE?
opencv
Mat
CvMat
visualstudio2010
cmake
769
views
no
answers
no
votes
2016-06-28 09:54:45 -0600
berak
opencv cross compilation issue
opnecv
cross-compile
2k
views
no
answers
no
votes
2016-08-04 19:47:44 -0600
monajalal
ImportError: No module named 'cv2' in OSX for OpenCV3 using Python3.5.2
python
Opencv3.0
OSX
1k
views
no
answers
no
votes
2016-09-27 00:11:34 -0600
flexbex
opnecv build fails on rpi3 with Ubuntu 16.04 and ENABLE_NEON=ON
opencv
c++
install
RaspberryPi
raspberrypi2
163
views
no
answers
no
votes
2017-02-03 02:03:29 -0600
Little drop
I want to opencv3.2.0+Qt5.6.2 in win10 os platform ,but failed to use mingw32-make.exe to compile .
mingw32-make#Qt5
2k
views
no
answers
no
votes
2017-02-09 06:56:33 -0600
ThorbjornSomod
Using cv::cudacodec::createVideoReader()
cudacodec
1k
views
no
answers
no
votes
2017-02-14 12:56:22 -0600
ttulinsky
Centos 7 building: many missing packages e.g. videodev.h, libavutil building
Centos7
769
views
no
answers
no
votes
2017-03-16 05:00:12 -0600
user12551
Building OpenCV 2.4 for arm64-v8a or x86_64 (CMake / make)
android
opencv
406
views
no
answers
no
votes
2017-03-21 10:52:33 -0600
Lindsey98
Trouble building opencv 3.2.0 on raspbian(pi3)
installation
opencv
python
3.2.0
1k
views
no
answers
no
votes
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
python
opencv_contrib
616
views
no
answers
no
votes
2017-07-23 22:54:20 -0600
reid
DMA directly into UMat data
UMat
gpu
DMA
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
1k
views
no
answers
no
votes
2017-08-03 04:32:14 -0600
Raki
Matplotlib to replace imshow()
matplotlib
opencv
python3
1k
views
no
answers
no
votes
2018-01-22 02:53:16 -0600
Micka
cuDNN in OpenCV DNN module?
dnn
opencv_dnn
gpu
cuDNN
795
views
no
answers
no
votes
2018-10-26 07:12:19 -0600
sean2018
Opencv on MacOS Xcode can not use imread to read image based on c++
c++opencv
macos
91
views
no
answers
no
votes
2019-01-23 10:56:37 -0600
peter_cz
How to detect workgroup size used?
dnn
150
views
no
answers
no
votes
2019-04-25 20:01:02 -0600
zack
GaussianBlur in windows10 vs2017 and ubuntu g++ has different speed?
ubuntu
time
vs2017
876
views
no
answers
no
votes
2019-06-06 19:34:23 -0600
TomH
can't open URL video source with opencv-python cv2.VideoCapture()
opencv
python
515
views
no
answers
no
votes
2019-09-08 21:23:55 -0600
karl liu
failed to compile OpenCV with CUDA at opencv_cudev module
build
895
views
no
answers
no
votes
2019-10-03 12:52:46 -0600
bevilacq12
Trying to make OpenCV conan package with FFmpeg support, not working
conan
package
ffmpeg
1k
views
no
answers
no
votes
2019-12-30 20:45:29 -0600
supra56
Build OpenCV 4.x for Android with c++_static
build
319
views
no
answers
no
votes
2020-02-07 10:14:08 -0600
yangjingru
opencv cpp dnn objection detection not in accordance with tensorflow object detection of python
dnn
opencv
cpp
tensorflow
objection
detection
518
views
no
answers
no
votes
2020-04-29 09:52:02 -0600
Emanuel Ferreira
Failing to use IE Backend (Compiling CV with IE)
opencv
python
InferenceEngine
« previous
1
2
3
4
5
...
13
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
opencv
×12
python
×6
build
×4
c++
×3
dnn
×3
install
×3
cmake
×2
error
×2
ffmpeg
×2
gpu
×2
Mat
×2
ubuntu
×2
UMat
×2
3.2.0
×1
android
×1
Centos7
×1
conan
×1
c++opencv
×1
cpp
×1
cross-compile
×1
CUDA7.0
×1
cudacodec
×1
cuDNN
×1
CvMat
×1
detection
×1
DLL
×1
DMA
×1
InferenceEngine
×1
installation
×1
jar
×1
java
×1
leak
×1
macos
×1
make
×1
matplotlib
×1
memory
×1
mingw32-make#Qt5
×1
Multithreading
×1
objection
×1
Opencv3.0
×1
opencv_contrib
×1
opencv_dnn
×1
opnecv
×1
OSX
×1
package
×1
python3
×1
RaspberryPi
×1
raspberrypi2
×1
tensorflow
×1
time
×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
×
