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783 questions
Tagged
438
views
no
answers
no
votes
2019-12-12 05:41:37 -0600
berak
I have tried installing opencv on raspberry pi but i get this error on cmake
raspberypi3
opencv
RaspberryPi
36k
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
749
views
no
answers
no
votes
2019-12-20 07:18:13 -0600
dslove
Not able to use openCL on Mac
opencl
gpu
mac
1k
views
1
answer
no
votes
2019-12-28 02:23:32 -0600
cudawarped
dnn with cuda on 4.20
CUDA
3k
views
1
answer
no
votes
2019-12-28 13:11:31 -0600
cudawarped
Can't find GpuMAT() functions in v4.2.0-dev compiled with python & CUDA
python#cuda#opencv
371
views
no
answers
no
votes
2019-12-29 23:20:22 -0600
jaylo
OpenCV Blender causes CL_BUILD_PROGRAM_FAILURE
stitching
opencl
c++
1k
views
no
answers
no
votes
2019-12-30 20:45:29 -0600
supra56
Build OpenCV 4.x for Android with c++_static
build
436
views
1
answer
no
votes
2020-01-09 02:36:44 -0600
LBerger
pass mat to opencl
Mat
617
views
no
answers
1
vote
2020-01-17 19:58:36 -0600
Martian
CMake: Difference between OpenCL_LIBRARY vs OPENCL_LIBRARY
cmake
cmake-gui
opencl
X11
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
315
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
1k
views
2
answers
no
votes
2020-03-02 19:10:54 -0600
HYPEREGO
How to use multiprocessing with OpenCV-C++ ?
opencv
c++
multiprocessing
318
views
no
answers
no
votes
2020-03-03 02:32:51 -0600
Nativate
Help run caffemodel
caffeemodel
python
opencv
anaconda
jupyter
93
views
no
answers
no
votes
2020-03-16 16:59:12 -0600
TigerHwang
OCL device memory leak
memoryleak
204
views
no
answers
no
votes
2020-03-17 22:40:39 -0600
ashishkrshrivastava
Changes in PR not getting build on custom builders [closed]
build
pr
custom
358
views
1
answer
1
vote
2020-03-19 11:05:46 -0600
mvuori
malloc.h error when building in a freenas jail
freenas
FreeBSD
malloc
1k
views
no
answers
no
votes
2020-03-23 21:15:18 -0600
jonathanlvaldez
OpenCV DNN with CUDA built from source (for arch bin < 5.3)
opencv
python
CUDA
dnn
1k
views
1
answer
no
votes
2020-03-29 06:05:47 -0600
ComputerVisionary
how to solve problem of low fps in OpenCV
c++
opencv
Facedetection
FaceRecognizer
eye
recognition
969
views
no
answers
no
votes
2020-04-11 08:43:32 -0600
carmeltop
gcc: error: long: No such file or directory (!!DENABLE_OPENCV_ALLOCATOR_STATS has set off)
windows7
opencv
64-bitwindows
3k
views
no
answers
no
votes
2020-04-21 13:42:12 -0600
hant
Opencv-Python built for Windows x64 Python 3.7, .pyd file not found, OpenCV modules unavailable
copencvpython
pyd
cv2.pyd
cmake
build
python3.7
671
views
1
answer
no
votes
2020-04-27 01:10:39 -0600
berak
OpenCV 3.4, build with MinGW 8.1.0
mingw-w64
opencv
3.4.10
481
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
234
views
no
answers
no
votes
2020-05-14 08:00:49 -0600
berak
OpenCV4.3.0 build with OpenCL
ocl
android
703
views
1
answer
no
votes
2020-05-18 11:37:40 -0600
meathead2k2
[python] RAM usage high when using VideoWriter in jupyter ONLY not pycharm
cv2.VideoWriter
python
411
views
1
answer
no
votes
2020-05-20 08:09:38 -0600
berak
How to use cv::ocl::BilateralFilter in c++ code
opencl#opencv
137
views
no
answers
no
votes
2020-05-20 18:31:16 -0600
plugwash
why does matallocator have two allocate functions.
CvMat
1k
views
1
answer
no
votes
2020-05-26 07:12:48 -0600
supra56
Triangle detection - Canny failing on corner [closed]
opencv
python
canny
approxPolyDP
83
views
no
answers
no
votes
2020-05-28 01:44:38 -0600
mm1994uestc
Which Opencv algorithm is supported by TAPI?
opencvtapiopencldsp
752
views
no
answers
no
votes
2020-06-02 12:03:55 -0600
dedetuga
Building Opencv4.3 Android shared libs error
build
android
opencv
linux
ubuntu
851
views
no
answers
no
votes
2020-06-08 10:18:49 -0600
richard__a
Help building openCV + contrib libraries using CMake visual studio 2019
cmake
contrib_error
build
visual
c++
anaconda
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