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29,830 questions
Tagged
2k
views
no
answers
no
votes
2020-11-21 04:35:54 -0600
kani
How to draw contour for a document in OpenCV.js?
javascript
contours
drawContours
433
views
1
answer
no
votes
2020-11-21 02:13:53 -0600
berak
Result of My Cascade Training is Bad
opencv#traincascade
1k
views
1
answer
no
votes
2020-11-20 18:53:46 -0600
sjhalayka
About Using OpenCV in Unreal Engine 4 [closed]
hololens
image-recognition
image-data
augmentedReality
unreal
Pattern_recognition
2k
views
no
answers
-2
votes
2020-11-20 02:14:39 -0600
kilwa
calculating the area dimension in image
python#opencv
6k
views
4
answers
no
votes
2020-11-20 01:41:09 -0600
dkurt
Android OpenCV + camera is just showing black screen
android
opencv
camera
2k
views
1
answer
no
votes
2020-11-19 20:23:12 -0600
crackwitz
How to calculate Optical Flow magnitude?
opticalflow
python
calcOpticalFlow
779
views
1
answer
no
votes
2020-11-19 20:13:19 -0600
crackwitz
Is there a way to select a specific web cam from USB hub on a Mac or Windows?
multi-camera
camera
5k
views
2
answers
no
votes
2020-11-19 20:07:38 -0600
crackwitz
How to Darken Faint/Dim Gray Text
grayText
darkerText
darkenText
ScannedDoc
378
views
1
answer
no
votes
2020-11-19 16:58:13 -0600
crackwitz
Blockwise PCA & Sobel seem to be way off for ridge angle detection
finger
fingertip
sobel
ridge
291
views
1
answer
no
votes
2020-11-19 16:49:29 -0600
crackwitz
I do downhole test using CCTV. Is there any open codes of the OpenCV I can use for a digital image stitching?
image
stitching
downhole
405
views
no
answers
-1
votes
2020-11-19 12:50:56 -0600
Handa
Creating a region of interest in java
java
regionofinterest
1k
views
no
answers
no
votes
2020-11-19 12:00:05 -0600
[email protected]
problem trying to install opencv-contrib-python
install
failure
1k
views
1
answer
no
votes
2020-11-19 03:08:11 -0600
marius
opencv 4.5.0 cvDiv/cvMat equivalent ?
android
343
views
no
answers
no
votes
2020-11-19 02:15:59 -0600
ARYL518
Use build_sdk.py to build opencv4 for android on Windows
android
221
views
no
answers
no
votes
2020-11-19 01:09:02 -0600
Ahmed
Is that an occlusion depth research problem?
opencv
1k
views
no
answers
no
votes
2020-11-18 21:00:46 -0600
jeremyardley
-Wno-inconsistent-missing-override - Build Error OpenCV 4.5.0
cmake
gcc
arm
debian
Buster
1k
views
1
answer
no
votes
2020-11-18 13:03:14 -0600
Tina J
cv2.error: OpenCV(4.0.0): …(-215:Assertion failed)… ONNXImporter::getLayerParams'
copencv
opencv
python
opencv4.0
375
views
1
answer
no
votes
2020-11-18 08:23:46 -0600
kbarni
Speeding up reading PNG images
imread
2d-image
image-loading
png
402
views
no
answers
no
votes
2020-11-18 02:12:49 -0600
Akshay RB
Query Regarding Opencv dependency "ffmpeg"
ffmpeg
1k
views
no
answers
no
votes
2020-11-17 11:41:28 -0600
lipa1242
Transforming global coordinates to camera coordinates
solvePnP
imagetransformation
geometric-transform
rvec
tvec
296
views
no
answers
no
votes
2020-11-17 05:55:41 -0600
PaveU
About depth-sight
camera
depth
9k
views
no
answers
no
votes
2020-11-16 12:19:57 -0600
Zapero
cv2.error: OpenCV(4.5.0-dev) /home/pi/opencv/modules/highgui/src/window.cpp:651: error: (-2:Unspecified error) [closed]
cv2
770
views
no
answers
no
votes
2020-11-16 09:42:46 -0600
ArkadiuszN
How to get an rvec replacement from quaternion or euler values
aruco
rvec
cv2
599
views
no
answers
no
votes
2020-11-16 09:24:43 -0600
berak
Setting Input Parameters dnn.detection model
cv2.dnn
306
views
no
answers
no
votes
2020-11-16 06:56:32 -0600
Srivatsav
cv2 python package folder structure
opencv
python
cv2
448
views
1
answer
no
votes
2020-11-16 06:21:45 -0600
mma
Python wrapper for opencv 4.5
opencv
4.5
python
671
views
no
answers
no
votes
2020-11-15 23:49:30 -0600
pnbao
How to solve memory leak problem when using opencv.js?
opencvjs
1k
views
1
answer
1
vote
2020-11-15 17:09:36 -0600
crackwitz
OpenCV Segmentation of Largest contour
segmentation
contours
detection
medical
387
views
1
answer
no
votes
2020-11-15 10:09:09 -0600
berak
python beginner mouseclicking problem
python
CV_EVENT_LBUTTONDOWN
1k
views
1
answer
no
votes
2020-11-15 08:47:49 -0600
crackwitz
How to warpPerspective a large image based on transform inferred from small region
WarpPerspective
perspectiveTransform
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