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29,830 questions
Tagged
140
views
no
answers
no
votes
2019-10-07 11:26:29 -0600
berak
It takes 30 seconds to "imshow" a "VideoCapture" from USB cam. Why?
python
USBCAM
396
views
no
answers
no
votes
2019-10-07 11:19:25 -0600
nicolasabril
HoughLines minTheta / maxTheta have strange behavior
HoughLines
139
views
no
answers
no
votes
2019-10-07 10:22:46 -0600
genesys
How do I get image point projected onto aruco board based on pose estimation?
aruco
3k
views
no
answers
no
votes
2019-10-07 10:13:25 -0600
zassenhaus
How to delete [ WARN:0] message in python opencv ?
python
imread
121
views
no
answers
1
vote
2019-10-07 04:46:51 -0600
Martian
Possible pitfalls in building/installing to non-standard locations in Linux
installation
buildfolder
6k
views
no
answers
no
votes
2019-10-06 21:05:51 -0600
supra56
set(cv2.CAP_PROP_FPS, 60) is not working and camera feed lagging
cv2.CAP_PROP_FPS
python
mac
lag
libv4l-dev
388
views
no
answers
no
votes
2019-10-06 10:02:27 -0600
Gandalf2019
Wavelets transform in opencv similar to pywt wavedec2
wavelets
pywt
wavedec2
152
views
1
answer
no
votes
2019-10-06 03:18:29 -0600
berak
How do you compare the x and y differences of feature points in two different images
keypoint-matching
767
views
1
answer
no
votes
2019-10-06 01:15:58 -0600
berak
Problem with Background Subtraction KNN in android studio
BackgroundSub
151
views
no
answers
no
votes
2019-10-06 21:16:34 -0600
supra56
How to distinguish objects based on different patterns in it?
opencv
python
matchTemplate
Pattern_recognition
FindContour
hough_transform
122
views
no
answers
no
votes
2019-10-05 11:39:37 -0600
matthewfromBelg
Aruco sample in Java
aruco
java
850
views
no
answers
no
votes
2019-10-06 05:30:30 -0600
Brendan Simon
Ellipse fitting similar to ImageJ feature
ellipse
Fit
223
views
1
answer
no
votes
2019-10-05 08:01:49 -0600
berak
DNN_BACKEND_CUDA WITH JAVA API
DNN_BACKEND_CUDA
303
views
no
answers
no
votes
2019-10-04 10:44:26 -0600
WolfG
SURF feature detector detects no keypoints
SURF
feature
detector
detects
no
Keypoints
688
views
1
answer
no
votes
2019-10-04 17:18:11 -0600
crackwitz
Is there an error in the color conversion components?
cvCvtColor
cvtColor
430
views
no
answers
no
votes
2019-10-04 09:19:08 -0600
TheImageWhisperer
How do i multi thread OpenCV? Or make it run on GPU pipeline
opencv
247
views
no
answers
no
votes
2019-10-04 08:47:37 -0600
srec
Hi, whether it is possible to visualize the lidar images using openCV [closed]
image
selection
231
views
no
answers
no
votes
2019-10-04 06:35:32 -0600
Humam Helfawi
OpenCV parallel_for_ splits ranges for single item
parallel_for_
536
views
no
answers
no
votes
2019-10-04 02:31:10 -0600
MarcelWeigle
Mat.forEach for 2 Matrices? Compare elements
forEach
625
views
1
answer
no
votes
2020-05-22 08:27:02 -0600
supra56
[SOLVED]Determining number of Traffic Light Pattern after Detecting Traffic Light [closed]
c++
opencv
colorsegmentation
Haar
109
views
no
answers
no
votes
2019-10-03 13:41:06 -0600
frank95
Surf detection problems [closed]
SURF
opencv
python
902
views
no
answers
no
votes
2019-10-03 12:52:46 -0600
bevilacq12
Trying to make OpenCV conan package with FFmpeg support, not working
conan
package
ffmpeg
1k
views
1
answer
no
votes
2019-10-04 17:23:52 -0600
crackwitz
self intersected contour
contour
9k
views
1
answer
no
votes
2019-10-03 15:06:46 -0600
kbarni
black and white image detection
image-processing
528
views
no
answers
no
votes
2019-10-03 04:32:56 -0600
alon3
undefined symbol: wl_proxy_marshal_constructor_versioned
ubuntu
377
views
no
answers
no
votes
2019-10-03 04:24:26 -0600
Zyzyx
Error converting to Mat and performing affineWarp
java
warpAffine
highgui
Mat
BufferedImage
datatypes
3k
views
no
answers
no
votes
2019-10-02 15:40:22 -0600
eric_engineer
camera calibration focal length is wrong
calibration
437
views
no
answers
no
votes
2019-10-02 13:23:29 -0600
Epigram
is there any analog of mulSpectrums function in opencvjs?
opencvjs
dft
mulspectrums
javascript
fourier
FourierTransform
682
views
1
answer
no
votes
2019-10-03 06:55:04 -0600
berak
Issue with compareHist function
python3.7
1k
views
1
answer
no
votes
2019-10-02 09:49:11 -0600
Czak
template matching invariant to rotations and noise
template
matching
rotation
invariant
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