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29,830 questions
Tagged
430
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answers
no
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2020-08-06 12:03:29 -0600
ronnyvdb
Track Edges and get Camera Transformation [closed]
camera
edge-detection
tracking
318
views
no
answers
no
votes
2020-08-06 04:45:55 -0600
gino0717
WINDOW_NORMAL worked weird after uncheck WITH_QT
imshow
window_normal
GUI
5k
views
no
answers
no
votes
2020-08-05 23:24:32 -0600
supra56
global /io/opencv/modules/videoio/src/cap_v4l.cpp (880) open VIDEOIO(V4L2): can't find camera device
ubuntu18.04
camera
imagerecognition
489
views
no
answers
no
votes
2020-08-05 23:03:35 -0600
supra56
Is it possible to use tee in gstreamer pipeline inside VideoCapture() API?
1#opencv#c++
3k
views
no
answers
-1
votes
2020-08-05 22:53:20 -0600
supra56
Capture Video from Camera using cv2.VideoCapture(0) not working
cv2VideoCapture
2k
views
1
answer
1
vote
2020-08-05 22:47:39 -0600
supra56
c++ imread filepath in windows
imread
imgpath
737
views
no
answers
no
votes
2020-08-05 22:14:11 -0600
supra56
cv2.error: assertion failed imshow [closed]
linux
imread
imshow
assertion
assertion_failed
481
views
1
answer
no
votes
2020-08-05 21:59:05 -0600
supra56
I’m using raspberry pi with python3. I don’t have the raspo camera. So how would make the videocapture(0) go to a web page? I have seen very complicated ways that I don’t understand yet. Are there basic ways to do this?
camera
webpage
opencv
python3
600
views
no
answers
no
votes
2020-08-05 12:47:18 -0600
andrepc
Error loading OpenCV4 libraries after cross compiling: No such file or directory
RaspberryPi
shared-library
736
views
no
answers
no
votes
2020-08-05 11:54:47 -0600
2ros0
python cv2 calls from c++
python
451
views
no
answers
no
votes
2020-08-05 02:35:42 -0600
jaubi
Aruco markers - how to keep a constant object size
opencvpython
192
views
1
answer
no
votes
2020-08-05 01:50:21 -0600
berak
Can we use .raw image format directly in CV functions?
rawfile
511
views
no
answers
no
votes
2020-08-05 01:35:30 -0600
berak
build opencv for ios failed
build
failed
ios
894
views
no
answers
-1
votes
2020-08-04 12:16:43 -0600
jaiswati
Drawing borders to any borderless tables using openCV [closed]
Line
482
views
no
answers
no
votes
2020-08-04 08:52:59 -0600
ShrutheeshIR
AruCo improve tracking a single marker
aruco
159
views
1
answer
1
vote
2020-08-04 07:06:24 -0600
berak
TermCriteria in LogisticRegression
LogisticRegression
TermCriteria
571
views
no
answers
no
votes
2020-08-04 04:03:50 -0600
boaz001
Memory leak in RGB2Lab
RGB2Lab
memoryleak
81
views
no
answers
no
votes
2020-08-04 02:29:33 -0600
RockStar
How to detect a color and then draw a line on it? [closed]
opencv#python
210
views
no
answers
no
votes
2020-08-04 02:04:20 -0600
ARYL518
white angle and black angle in chessboard
calibration
220
views
no
answers
no
votes
2020-08-03 20:22:17 -0600
pv1
How to generate libopencv_javaxxx.so files instead of dylibs on a mac?
dylib
native
java
332
views
no
answers
no
votes
2020-08-03 10:56:29 -0600
rgov
Specify CUDA stream for DNN evaluation
CUDA
dnn
303
views
no
answers
-1
votes
2020-08-03 09:55:52 -0600
mprabhakarece
Problem in ORB feature matching [closed]
ORB#C++#Feature
matching
2k
views
1
answer
no
votes
2020-08-03 07:45:48 -0600
berak
Rectified Images Show unwanted results, OpenCV with Stereo Vision
Stereovision
python
calibrateCamera
ubuntu
stereocalibration
Rectification
188
views
no
answers
no
votes
2020-08-03 01:50:27 -0600
vasudha
How to have the camera 'desynchronized' with Illumination changes?
image-processing
RaspberryPi
ffmpeg
825
views
no
answers
no
votes
2020-08-02 12:28:00 -0600
leafdet
Coordinate frame transformation from NED to OpenCV convention, and the Pinhole Camera Model
opencv_sfm
3dreconstruction
pinhole
calibration
361
views
1
answer
no
votes
2020-08-02 01:33:44 -0600
berak
where is the position in aruco_ros marker detector [closed]
aruco
aruco_marker
aruco_ros
756
views
no
answers
no
votes
2020-08-01 22:50:39 -0600
zubaidah
TypeError: only size -1 arrays can be converted to python scalar
python
3k
views
1
answer
no
votes
2020-08-01 14:01:46 -0600
cudawarped
Warning: field of class type without a DLL interface used in a class with a DLL interface
build
windows
CUDA
VS2019
3k
views
1
answer
no
votes
2020-08-01 05:37:42 -0600
cudawarped
Parallelizing GPU processing of multiple images
CUDA
gpu
529
views
no
answers
no
votes
2020-07-31 07:55:22 -0600
tkEAB
Difference in BGR values between C++ and Python
BGR
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