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29,830 questions
Tagged
310
views
1
answer
1
vote
2019-11-19 02:41:03 -0600
berak
Can I cite one of the illustrative figure from the website in OpenCV in my research paper?
articles
paper
cite
citation
figure
permission
184
views
no
answers
no
votes
2019-11-18 13:08:33 -0600
Hugheschen
Using CALIB_FIX_PRINCIPLE_POINT flag, but calibration result still see changes in Principle Point
calibration
683
views
1
answer
no
votes
2019-11-18 09:56:12 -0600
supra56
A problem about building OpenCV4[SOLVED]
opencv_contrib
1k
views
2
answers
no
votes
2019-11-18 09:53:48 -0600
supra56
Is it possible to detect a circle with grey color and blue dot in center
houghcircle
3k
views
1
answer
no
votes
2019-11-18 04:04:07 -0600
supra56
A installation problem of OpenCV[SOLVED]
opencv4
1k
views
no
answers
no
votes
2019-11-18 03:14:33 -0600
NicoBlu
Dynamic link issue: java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol "fread_unlocked"
DynamicLink
opencv_java
550
views
1
answer
no
votes
2019-11-18 00:59:16 -0600
berak
OpenCV video decode [closed]
Video
intel
video-processing
216
views
no
answers
no
votes
2019-11-18 00:01:37 -0600
[email protected]
which version of opencv is best to download for anaconda(python 3.7))
opencv
757
views
no
answers
no
votes
2019-11-17 23:37:31 -0600
cv_new
How to import OpenCV library in PyCharm by self-building
pycharm
230
views
no
answers
no
votes
2019-11-17 07:48:13 -0600
Crea
template matching rotation C++ to python [closed]
template
rotation
340
views
no
answers
no
votes
2019-11-17 06:30:17 -0600
Shay Weissman
OpenCv 4.1.2 Inference engin 2019 R3. readNetFromModelOptimizer crash [closed]
dnn
openvino
windows
4.1.2
7k
views
1
answer
no
votes
2019-11-17 04:39:42 -0600
supra56
i am unable to install opencv using pip
installation-fails
932
views
1
answer
no
votes
2019-11-16 21:37:19 -0600
nishant_elxsi
I tried to link FFMPEG with OpenCV,but I am getting unable to stop the video stream:inappropriate ioctl device error. I tried to install latest version of FFMPEG(4.2.1) and link it to OpenCV(3.4.3) installed.But I am getting the same error.
opencv
ffmpeg
drawcontour
117
views
no
answers
1
vote
2019-11-16 20:28:05 -0600
HelloWorld
When I use bowtrainer.cluster(), if there are a lot of images, the application will exit with a segmentation error (core dump). [closed]
exit
3k
views
no
answers
no
votes
2019-11-16 15:35:56 -0600
[email protected]
Rotate by warpPerspective after getPerspectiveTransform by 4 points in C++
c++
opencv
624
views
1
answer
no
votes
2019-11-16 11:10:34 -0600
Daz
Gamma, Tonemapping, - basics hdr
imageConversion
704
views
no
answers
no
votes
2019-11-16 09:28:36 -0600
Der Luftmensch
cv::Mat and cv::cuda::GpuMat containers
core
Mat
CUDA
gpumat
polymorphism
5k
views
3
answers
no
votes
2019-11-16 04:31:36 -0600
Freeman
Best way not to have to copy a Mat back into an OutputArray
outputarray
858
views
no
answers
no
votes
2019-11-16 02:24:14 -0600
aditya_mangalampalli
OpenCV DNN Throws Unsupported Layer Error
dnn
9k
views
no
answers
no
votes
2019-11-15 04:37:33 -0600
berak
How to Detect Speaker from facial landmarks of mouth using face_recognition
python
Facedetection
1k
views
1
answer
no
votes
2019-11-15 01:54:39 -0600
Yashas
Error compiling openCV 4.1.2 with CUDA 9.0 in Ubuntu 16.04
CUDA9.0
ubuntu
979
views
1
answer
no
votes
2019-11-14 16:07:17 -0600
Martian
edge detection and contour extraction
edgedetection
589
views
no
answers
no
votes
2019-11-14 08:15:17 -0600
snehal
DICOM Image segmentation and 3d construction using VTK [closed]
python
opencv
vtk
1k
views
1
answer
no
votes
2019-11-14 08:14:34 -0600
berak
How to copy a mat object to a integer 2D matrix in opencv java ?
java
595
views
no
answers
no
votes
2019-11-13 22:01:41 -0600
patrick129
Change camera resolution in C++?
c++
opencv
197
views
no
answers
no
votes
2019-11-13 14:12:18 -0600
cpp_opencv
DNN symbol lookup error
dnn
lookup
Linking
symbol
compile
4k
views
no
answers
no
votes
2019-11-13 12:28:47 -0600
trolstover
libopencv_core.so.4.1 not found?
c++#opencv
16k
views
3
answers
no
votes
2019-11-13 06:25:47 -0600
supra56
How to fix error error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow' when trying to capture a video stream?
opencv
python
2k
views
1
answer
no
votes
2019-11-13 03:16:05 -0600
berak
error: use of undeclared identifier 'cv'
Local
local-binary-pattern
851
views
no
answers
no
votes
2019-11-13 02:27:23 -0600
gpcbitnik
failed to load model with readNetFromModelOptimizer [closed]
opencv
openvino
dnn
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