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783 questions
Tagged
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
955
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
345
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
584
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
652
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
373
views
1
answer
no
votes
2017-02-28 06:03:58 -0600
Sutil
namedWindow bug on Ubuntu 16.04 [closed]
ubuntu16.04
1k
views
1
answer
no
votes
2017-02-28 10:54:31 -0600
ibrahim.kaa
Error building opencv with extra modules in Visual Studio
opencv3.2
extramodules
tracking
build
32bit
visual-studio-2015
1k
views
1
answer
no
votes
2017-03-16 13:15:08 -0600
adn
Missing ts from Release build
build
ts
tests
1k
views
1
answer
no
votes
2017-04-09 23:05:37 -0600
Serpent10i
Building OpenCV 3.2 with opencv_contrib for Python 3.6 on Window
install
python
python3
build
cmake-gui
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
8k
views
1
answer
no
votes
2018-11-08 12:04:09 -0600
Eduardo
OpenCV + Darknet - Error when initializing darknet
yolo
object
detection
darknet
dnn
Initialization
4k
views
1
answer
no
votes
2018-01-19 13:16:04 -0600
mshabunin
Opencv 3.4.0 + Opencv contrib + MinGW 4.9.2 + ERROR while compiling (mingw-make)
OpenCV3.4.0
contrib
mingw
error
compiling
make
643
views
1
answer
no
votes
2018-07-03 06:10:09 -0600
berak
dnn example question.
dnn
facenet
3k
views
1
answer
no
votes
2018-08-15 12:39:27 -0600
wmmc88
How do I properly build Android OpenCV from sources?
build_sdk.py
build
contrib
android
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