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31,843 questions
Tagged
14
views
no
answers
no
votes
2019-11-18 14:48:09 -0500
supra56
how to remove black background from thresholding output in Opencv Android?
segmentation
Thresholding
5
views
no
answers
no
votes
2019-11-18 13:08:33 -0500
Hugheschen
Using CALIB_FIX_PRINCIPLE_POINT flag, but calibration result still see changes in Principle Point
calibration
8
views
no
answers
no
votes
2019-11-18 12:56:55 -0500
postlude
How to exclude outliers from detected Orb features?
ORB
feature-detection
object-detection
8
views
no
answers
no
votes
2019-11-18 12:38:05 -0500
TheEMcoder
findChessboardCorners() gives False in OpenCV 4.1.2 C++
opencv
c++
calibrateCamera
findChessboardCorner
91
views
1
answer
no
votes
2019-11-18 09:56:12 -0500
supra56
A problem about building OpenCV4[SOLVED]
opencv_contrib
59
views
2
answers
no
votes
2019-11-18 09:53:48 -0500
supra56
Is it possible to detect a circle with grey color and blue dot in center
houghcircle
15
views
no
answers
no
votes
2019-11-18 07:43:58 -0500
cv_new
A configuration problem of OpenCV4
installation
python
anaconda
23
views
no
answers
no
votes
2019-11-18 07:13:00 -0500
Nup
How to measure tracked contours und detect if they merge
opencv#python#video
13
views
no
answers
no
votes
2019-11-18 05:27:56 -0500
igleer
Rotating Camera Intrinsics Matrix
calibrateCamera
intrinsic
57
views
1
answer
no
votes
2019-11-18 04:04:07 -0500
supra56
A installation problem of OpenCV[SOLVED]
opencv4
10
views
no
answers
no
votes
2019-11-18 03:14:33 -0500
NicoBlu
Dynamic link issue: java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol "fread_unlocked"
DynamicLink
opencv_java
13
views
1
answer
no
votes
2019-11-18 00:59:16 -0500
berak
OpenCV video decode [closed]
Video
intel
video-processing
23
views
no
answers
no
votes
2019-11-18 00:01:37 -0500
ravikanth076@gmail.com
which version of opencv is best to download for anaconda(python 3.7))
opencv
15
views
no
answers
no
votes
2019-11-17 23:37:31 -0500
cv_new
How to import OpenCV library in PyCharm by self-building
pycharm
8
views
no
answers
no
votes
2019-11-17 20:51:47 -0500
blinking
Compile aruco to opencv.js
OpenCV.js
aruco
15
views
no
answers
no
votes
2019-11-17 20:50:10 -0500
GaleAeras
cv::waitKey not reading keyboard input properly
waitkey
c++
27
views
no
answers
no
votes
2019-11-17 07:48:13 -0500
Crea
template matching rotation C++ to python [closed]
template
rotation
16
views
no
answers
no
votes
2019-11-17 06:30:17 -0500
Shay Weissman
OpenCv 4.1.2 Inference engin 2019 R3. readNetFromModelOptimizer crash
dnn
openvino
windows
4.1.2
26
views
1
answer
no
votes
2019-11-17 04:39:42 -0500
supra56
i am unable to install opencv using pip
installation-fails
268
views
1
answer
no
votes
2019-11-16 21:37:19 -0500
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
7
views
no
answers
no
votes
2019-11-16 20:28:05 -0500
HelloWorld
When I use bowtrainer.cluster(), if there are a lot of images, the application will exit with a segmentation error (core dump).
exit
12
views
no
answers
no
votes
2019-11-16 15:35:56 -0500
sina_asefi87@yahoo.com
Rotate by warpPerspective after getPerspectiveTransform by 4 points in C++
c++
opencv
29
views
1
answer
no
votes
2019-11-16 11:10:34 -0500
Daz
Gamma, Tonemapping, - basics hdr
imageConversion
14
views
no
answers
-1
votes
2019-11-16 10:17:53 -0500
Fandi
can roi use binary mask for segmentation? [closed]
segmentation
regionofinterest
15
views
no
answers
no
votes
2019-11-16 09:28:36 -0500
Der Luftmensch
cv::Mat and cv::cuda::GpuMat containers
core
Mat
CUDA
gpumat
polymorphism
3k
views
3
answers
no
votes
2019-11-16 04:31:36 -0500
Freeman
Best way not to have to copy a Mat back into an OutputArray
outputarray
12
views
no
answers
no
votes
2019-11-16 02:24:14 -0500
aditya_mangalampalli
OpenCV DNN Throws Unsupported Layer Error
dnn
28
views
no
answers
no
votes
2019-11-15 04:37:33 -0500
berak
How to Detect Speaker from facial landmarks of mouth using face_recognition
python
Facedetection
58
views
1
answer
no
votes
2019-11-15 01:54:39 -0500
Yashas
Error compiling openCV 4.1.2 with CUDA 9.0 in Ubuntu 16.04
CUDA9.0
ubuntu
41
views
no
answers
no
votes
2019-11-14 21:57:43 -0500
ashfaq267
How to crop and remove background or add white background
imageprocessing
shadow-removal
bacgroundsubtraction
1
2
3
4
5
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