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486 questions
Tagged
38k
views
no
answers
no
votes
2019-12-17 23:27:22 -0600
clefrks
error: (-215:Assertion failed) !_img.empty() in function 'imwrite [closed]
opencv
ffmpeg
Library
linux
632
views
no
answers
no
votes
2017-03-09 11:18:08 -0600
fanyuan
OpenCV 3.1 videoCapture memory leak on ubuntu 16.04 detected by Valgrind
opencv3.1
LeakMemory
Valgrind
ubuntu16.04
1k
views
no
answers
2
votes
2017-10-16 15:50:14 -0600
ossyaritoori
Why self compiled Opencv is slower than apt-get package?
opencv
CUDA8.0
278
views
no
answers
no
votes
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
1k
views
no
answers
no
votes
2017-12-05 02:15:00 -0600
trohit
Unable to install OpenCV 3.3 with Cuda9: Getting error: Built target opencv_cudawraping Makefile:160: recipe for target 'all' failed
CUDAlinuxopencv
2k
views
no
answers
no
votes
2017-12-14 00:42:21 -0600
lm35
2%] Built target opencv_cvv_automoc Makefile:160: recipe for target 'all' failed
opencv3.1.0
CUDA
ubuntu14.04
305
views
no
answers
no
votes
2019-07-30 22:16:13 -0600
Srikanth
Trouble building opencv4.1.1 on RHEL 6
RHEL6
linux
4.1.1
build
291
views
no
answers
no
votes
2018-06-05 00:30:24 -0600
khaled elmadawi
Forward propagation of readNetFromTensorflow on GPU not CPU
gpu
opencl
534
views
no
answers
no
votes
2018-05-17 09:52:47 -0600
l.gilson
c++, calling opencv from multiple threads
multiple
calling
threads
solvePnP
579
views
no
answers
no
votes
2018-07-20 06:49:40 -0600
berak
Internal error while loading opencv shared library shared
opencv_calib3d_2.4
1k
views
no
answers
no
votes
2017-06-28 03:26:50 -0600
scobbing
Error with cuda::VideoWriter
CUDA
CreateVideoWriter
1k
views
no
answers
no
votes
2019-08-19 17:02:18 -0600
paubau
Cross-compile for ARM
cross-compilation
docker
arm
731
views
no
answers
no
votes
2020-04-28 10:34:45 -0600
Josvds
Docker build fails on docker hub
docker
build
cmake
opencv
csharp
1k
views
no
answers
no
votes
2018-02-15 02:36:56 -0600
sid311
Adventures in OpenCV Building: OpenCV + Contrib 3.4 build results in neutered Java and Python files and no Matlab bindings
opencv
opencv_contrib
Matlab
python
java
intel
707
views
no
answers
no
votes
2018-11-22 04:10:39 -0600
martin.92
Error with cmake and the opencv_contrib repository [closed]
cmake-gui
cmake
contrib
opencv+contrib
5k
views
no
answers
no
votes
2020-03-11 01:03:57 -0600
raisa_
How do I set up Qt windows for OpenCV in Ubuntu ?
ubuntu18.04
terminal
qt
c++
1k
views
no
answers
no
votes
2018-11-15 07:32:37 -0600
berak
Camera is not recognized
camara
tracking
2k
views
no
answers
no
votes
2019-07-29 08:11:10 -0600
Aaron Zettler
Cross compiling OpenCV for a ARM based linux system (Xilinx)
linux
ubuntu14.04
opencv
static
arm
xilinx
304
views
no
answers
no
votes
2018-01-04 16:59:20 -0600
steven_pint
how to build and run xfeatures2d examples? [closed]
samples
231
views
no
answers
no
votes
2014-03-30 19:57:25 -0600
Martin Peris
failed to make opencv with tbb42 on macosx Mavericks
c++
install
OSX
2k
views
no
answers
no
votes
2017-09-28 03:59:34 -0600
berak
OpenCV3.1 & opencv_contrib3.1 install in Ubuntu
c++#opencv
1k
views
no
answers
1
vote
2020-08-08 19:02:01 -0600
PKGosal
error importing cv2 in python3.6 but it works for python2.7
opencvpython
1k
views
no
answers
no
votes
2019-07-24 06:33:25 -0600
supra56
On downloading opencv 3.4.0 i got an error
install
error
1k
views
no
answers
no
votes
2019-09-01 04:23:43 -0600
Martian
OpenCV 4 cmake switches for best runtime performance (Linux, C++, Python)
cmake
switches
c++
667
views
no
answers
no
votes
2018-09-25 13:11:28 -0600
yancey
dnn efficiency of mobilenet-ssd [closed]
dnn
MobileNetSSDCaffe
c++
speed
1k
views
no
answers
no
votes
2017-05-23 13:08:48 -0600
aligoglos
cant add tracking modules to opencv solution [closed]
cmake-gui
opencv_contrib
2k
views
no
answers
no
votes
2019-06-29 02:59:17 -0600
doctrucker
Failing to lock exposure on Logitech C270
beginner
python
compile
c270
782
views
no
answers
no
votes
2017-11-13 05:27:12 -0600
[email protected]
segmentation fault with parallel_for_
parallel_for_
c++
271
views
no
answers
no
votes
2015-10-31 15:10:32 -0600
ajmartin
Segmentation Fault with OpenCV 3.0.0 on Windows 8.1 with MinGW
c++
opencv
SegmentationFault
tbb
4k
views
no
answers
no
votes
2017-01-11 16:08:53 -0600
KevinLucidyne
VS 2013: Cannot open include file: 'tbb/tbb.h': No such file or directory [closed]
tbb
CUDA
opencv32
build
opencv_world
visual-studio
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