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783 questions
Tagged
1k
views
1
answer
2
votes
2019-01-24 16:02:22 -0600
LBerger
drawKeypoints bug?
drawKeypoints
329
views
1
answer
no
votes
2019-03-31 03:31:39 -0600
berak
Where are include files for opencv4 after building the project file with codeblock?
opencv
build
codeblocks
598
views
1
answer
no
votes
2019-05-29 05:01:46 -0600
berak
How to build OpenCV 4.1.0 on Ubuntu 18.10
4.1.0
ubuntu
build
from-source
1k
views
1
answer
no
votes
2020-01-29 21:31:07 -0600
chee0007
Issues compiling opencv-3.4.8 with cuda-10.2 in Ubuntu
c++
CUDA10.2
aarch64
compilation-error
422
views
1
answer
no
votes
2020-08-29 00:48:09 -0600
berak
Where to find implementation of BFMatcher::match
feature-detection
matcher
bfmatcher
956
views
1
answer
1
vote
2013-06-02 01:16:06 -0600
heneedhelp
Opencv Android 2.4.5 device reboot
#android
samsung
s4
reboot
crash
restart
1k
views
1
answer
1
vote
2013-09-22 14:12:40 -0600
Dake Feng
Trouble Compiling OpenCV 2.4.6 from source
OpenCV2.4.6
VS2012
634
views
1
answer
no
votes
2013-12-03 08:30:59 -0600
jensenb
compiling opencv @2.4.6.1_2+python27 with CUDA support throws an error after upgrading to OS X 10.9
osx-mavericks
CUDA5.5
macports
nvcc
1k
views
1
answer
no
votes
2013-11-07 08:55:52 -0600
Vladislav Vinogradov
CMake errors while building OpenCV 2.4.5 with CUDA 5.5
CUDA5.5
cmake
c++
1k
views
1
answer
no
votes
2014-01-05 03:17:12 -0600
Matthias
I cannot build java in 3.0.0
java
build
8k
views
1
answer
no
votes
2014-04-30 11:02:42 -0600
thePhi
cv2.imshow() not working ("function no implemented") (on Ubuntu) [SOLVED]
install
imshow
ubuntu14.04
gtk
1k
views
1
answer
no
votes
2014-10-23 16:47:31 -0600
kilua
build error: undefined reference to 'v4l2_munmap'
#3.0.0
#linux
#build
1k
views
1
answer
no
votes
2014-12-04 07:21:39 -0600
OrkunK
OpenCV 2.4.9 and Cuda 6.5 not making on Ubuntu 14.04 LTS
#ubuntu14.04
#CUDA6.5
#cmake
#make
#opencv2.4.9
931
views
1
answer
3
votes
2015-01-12 15:04:10 -0600
Vit
Canny (OCL, 3-beta) can not detect connected contour of black square on a white background.
Imgproc
canny
bug
6k
views
1
answer
1
vote
2015-07-18 09:20:54 -0600
smwikipedia
How to build the Java wrapper for OpenCV 3.0?
java
2k
views
1
answer
no
votes
2015-07-29 14:58:57 -0600
shadowsheep
Opencv 3.0 + visual studio 2013 + CUDA + CMake
build
CUDA
copencv
visual-studio-2013
performance
1k
views
1
answer
no
votes
2015-08-12 18:06:14 -0600
Yolteotl
imread returns empty mat in examples
examples
imread
Opencv3.0
empty
Mat
CvMat
2k
views
1
answer
1
vote
2015-09-23 02:11:40 -0600
berak
Need help - building 3.0 with Cuda 7.5 on Windows VS2012, static lib output
3.0
CUDA
windows
build
1k
views
1
answer
1
vote
2015-10-12 13:00:04 -0600
panmari
Need help - building opencv3.0 with Cuda 7.5 on Windows VS2010, cmake error
Opencv3.0
CUDA
vs2010
336
views
1
answer
no
votes
2015-10-21 08:27:26 -0600
Jaheen
TLD causes nvcompiler.dll access violation
access-violation
tld
2k
views
1
answer
no
votes
2016-02-23 22:58:04 -0600
sai kethamakka
8UC4 Mat to qimage
c++qt
QImage
imageConversion
572
views
1
answer
no
votes
2016-03-13 03:16:26 -0600
berak
CV_IPP_RUN no define when build opencv3.1.0
opencv3.1.0
4k
views
1
answer
no
votes
2016-05-30 05:01:02 -0600
mshabunin
Cannot build OpenCV 3.1.0 from source with FFMPEG
ubuntu15.04
ffmpeg
python3
libav
opencv3.1.0
build
20k
views
1
answer
no
votes
2016-10-09 00:01:22 -0600
gfx
sys/videoio.h: No such file or directory
opencv
ubuntu
build
596
views
1
answer
no
votes
2016-08-25 10:20:54 -0600
jlaura
OpenCV3, Python3, Missing xFeatures
build
python
python3
opencv3.1.0
17k
views
1
answer
no
votes
2016-09-28 08:19:55 -0600
Leonardo
IP Camera Capture delay/lag
videocapture
cache
ip
onvif
rtsp
gstreamer
1k
views
1
answer
no
votes
2016-11-26 06:30:57 -0600
berak
Ubuntu build fails with memcpy not declared in string.h
build
installation
ubuntu16.04
make
1k
views
1
answer
1
vote
2016-12-07 02:17:55 -0600
LBerger
Segmentation fault when initializing tracker. Possible bug?
bugreporting
SegmentationFault
kcf_tracker
6k
views
1
answer
no
votes
2016-12-09 06:09:11 -0600
pi-null-mezon
Trying to run dnn module
opencv3.1.0
deep-learning
dnnopencvmodule
1k
views
1
answer
-1
votes
2017-01-14 07:21:08 -0600
User
OpenCV 3.1 build for windows imshow doesn't work [closed]
opencv3.1
imshow
highgui
build
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