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783 questions
Tagged
412
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no
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2018-10-08 03:09:32 -0600
Shir
Optimize cvtcolor, convert from yuv2 to bgr
arm
arm-neon
cvCvtColor
ColorConversionCodes
YUV
1k
views
no
answers
no
votes
2018-04-13 14:01:45 -0600
benweinstein
Known issue with gopro movie codec? Stops reading after 26 frames.
codecs
videocapture
GoPro
ffmpeg
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
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
no
votes
2018-05-10 08:36:40 -0600
berak
[opencv 4.0.0 installation] Failed build project
opencv
c++
698
views
no
answers
no
votes
2018-12-14 02:39:20 -0600
SpeedEC
getting error when run mingw32-make: cap_dshow.cpp file error
CAP_DSHOW
mingw32-make
2k
views
no
answers
no
votes
2019-10-16 06:44:08 -0600
LBerger
Configuration Error CMake 3.15.14 opencv contrib
cmake-gui
opencv
cmake
921
views
no
answers
no
votes
2018-04-13 10:59:56 -0600
Stefan Koenig
UMat multithreading issues when using producer-consumer pattern
UMat
Multithreading
multi-thread
gpu
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
525
views
no
answers
no
votes
2018-02-22 21:31:02 -0600
berak
Latest opencv + contrib modules, missing sdk/java [closed]
opencv4android
opencv+contrib
1k
views
no
answers
no
votes
2018-06-19 07:47:20 -0600
facedemo
ros kinetic dnn -- OpenCV Error: Assertion failed -- cv2.error -- error: (-215) -- .bashrc -- deep learning [closed]
ros-kinetic-opencv3
3.3.1
563
views
no
answers
no
votes
2019-07-10 10:34:51 -0600
eric_engineer
Building latest master for android but missing Java folder
build
java
1k
views
no
answers
no
votes
2018-07-11 21:53:55 -0600
berak
opencv build error in windows: no rule to make target [closed]
no
target
opencv
java
windows
2k
views
no
answers
no
votes
2018-04-04 08:24:02 -0600
Jérémy K
Building native libraries not working
build
cmake
native
libraries
linux
RaspberryPi
1k
views
no
answers
no
votes
2020-12-04 09:17:00 -0600
fafafafa
pre-built OpenCv with extra modules for java
java
opencv
810
views
no
answers
no
votes
2018-04-27 06:08:40 -0600
moshel
Python openpose sample from openCV dnn does not run [closed]
python
dnn
openpose
590
views
no
answers
no
votes
2019-08-31 09:01:41 -0600
sergorl
where is .lib for cudaarithm.hpp?
cudaarithm
1k
views
no
answers
no
votes
2018-01-27 07:41:37 -0600
alex001
Extra delay when copying UMat to Mat
opencv
copyTo
delay
slow
672
views
no
answers
no
votes
2020-10-21 06:32:50 -0600
sbofirov
Cannot reproduce same build
remap
compile
build
optimization
2k
views
no
answers
no
votes
2018-07-02 10:05:39 -0600
berak
Error in building OpenCV [closed]
build
297
views
no
answers
1
vote
2017-10-16 08:13:46 -0600
qudlaty
Problem with MOG2 OCL test
ocl
performance
MOG2
1k
views
no
answers
no
votes
2020-07-06 07:28:46 -0600
bbboat
Still cant get "FFMPEG: tag 0x00000021/'!???' is not found" error after build from source
opencv-python
videowriter
283
views
no
answers
no
votes
2018-07-05 04:39:12 -0600
holger
open cl confusion
openc
cl
dnn
575
views
no
answers
no
votes
2017-03-27 10:20:12 -0600
yrazin
Cannot build opencv_core320d.lib in VS2008
opencv3
vs2008
619
views
no
answers
no
votes
2018-12-05 10:11:28 -0600
Simontraww
Opencv (3.4.4) with NEON provide a few undefined symbols (ANDROID)
android
studio
arm-neon
compile
Linking
1k
views
no
answers
no
votes
2015-10-07 02:51:25 -0600
JesseCh
Using OpenCV 3.0 UMat on Odroid XU3
Opencv3.0
opencl
arm
odroid
c++
opencv
455
views
no
answers
no
votes
2020-08-24 01:02:41 -0600
berak
request help,Status -43: CL_INVALID_BUILD_OPTIONS
android
opencl
690
views
no
answers
no
votes
2018-12-07 07:38:47 -0600
Théo31
GPU slower than CPU with Mali G72
opencl
mali
G72
Hikey970
1k
views
no
answers
no
votes
2017-05-26 13:07:46 -0600
Elliot_
How can I deal with cv::matchTemplate crashing for large images?
visual
studio
c++
opencl
208
views
no
answers
no
votes
2018-07-03 02:33:21 -0600
dorimu
convert direct3d surface to umat fails
opencl
directx
drawcontour
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