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928 questions
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python
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opencv
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2k
views
1
answer
1
vote
2020-08-17 05:16:22 -0600
berak
How can I modify ROI and then add it to the original image using Python?
opencv
python
image-processing
10k
views
no
answers
no
votes
2020-08-11 20:20:20 -0600
supra56
error: (-2:Unspecified error) could not find a writer for the specified extension in function cv::imwrite
opencv
python
4k
views
1
answer
no
votes
2020-07-28 06:51:26 -0600
berak
TypeError: Expected Ptr<cv::UMat> for argument 'src'
opencv
python
image-recognition
image_recognition
413
views
no
answers
no
votes
2020-07-19 06:40:59 -0600
Niessoh
Why is setting frame height and width prevents saving the webcam stream to disk?
opencv
python
cv2
1k
views
3
answers
no
votes
2020-07-17 13:29:17 -0600
berak
show video and texts on single window
opencv
python
1k
views
no
answers
no
votes
2020-07-14 05:57:00 -0600
dlrnae
Change a particular color in an Image Python
opencv
python
1k
views
1
answer
no
votes
2020-07-14 01:42:29 -0600
berak
import cv2 error on windows: missing configuration files
IMPORT_CV2
ImportError
opencv
python
missing
configuration
938
views
no
answers
no
votes
2020-07-13 09:56:54 -0600
Malathi_72
smooth edges in binary images
opencv
python
804
views
no
answers
no
votes
2020-07-11 03:35:42 -0600
supra56
what does this warning mean? warning : field of class type without a DLL interface used in a class with a DLL interface
opencv
DLL
dlls
python
cmake
95
views
no
answers
no
votes
2020-07-09 11:41:44 -0600
arnoldman_66
Why are the coordinates of each crack not steady
opencv
python
12k
views
1
answer
no
votes
2020-10-04 15:09:39 -0600
supra56
Help geeting OpenCV to output a videostream using gstreamer. [closed]
opencv
gstreamer
rtp
python
3k
views
2
answers
3
votes
2020-07-07 03:40:47 -0600
berak
can't run HoughCircles on image
opencv
python
image-processing
1k
views
1
answer
no
votes
2020-10-09 02:45:32 -0600
RashidLadj
OpenCV solvePnPRansac() function
opencv
python
3dreconstruction
computervision
camera
solvePnP
1k
views
no
answers
no
votes
2020-07-03 14:33:16 -0600
Sara Ahmed
OpenCV Decompose projection matrix outputs
opencv
python
3dreconstruction
Calib3d
projection-matrix
135
views
no
answers
no
votes
2020-06-29 20:56:31 -0600
bernard55
Need advice on how to clean noise out of image
python
opencv
938
views
no
answers
no
votes
2020-06-29 11:15:16 -0600
LoveOpencv
Gradually increased memory of jetson nano in the decoding of multi-stream using Gstreamer+Opencv
gstreamer
rtsp
opencv
python
288
views
no
answers
-1
votes
2020-06-28 10:54:26 -0600
Dragonfly Robotics
OpenCV Training Custom Haar Cascade with Python 3
opencv
python
cvHaarCascadeClassi
216
views
2
answers
no
votes
2020-06-27 07:56:41 -0600
supra56
Opencv Doxygen for python
opencv
python
350
views
1
answer
-1
votes
2020-06-27 05:20:25 -0600
supra56
Python type casting [closed]
python
opencv
262
views
no
answers
no
votes
2020-06-24 00:19:00 -0600
RaspberryLover
call opencv and guizero in raspberry [closed]
opencv
python
RaspberryPi
72
views
no
answers
-1
votes
2020-06-14 22:22:32 -0600
Zenora
How do i add the webcam feed from my AI facial detection software onto the top panel in my frame?
opencv
python
4k
views
1
answer
no
votes
2020-06-13 02:13:58 -0600
berak
I Am Trying To Do Face-recognition With Python But I Am Getting This Error: cv2.error: OpenCV(4.2.0) /Users/travis/build/skvark/opencv-python/opencv/modules/imgproc/src/resize.cpp:4045: error: (-215:Assertion failed) !ssize.empty() in function 'resize'
opencv
python
1k
views
no
answers
no
votes
2020-06-12 04:03:47 -0600
xynx
Get 3D world coordinates from 2D image coordinates
python
camera
opencv
calibrateCamera
PnP
573
views
no
answers
no
votes
2020-06-11 02:31:16 -0600
berak
Mobile app crashes when detecting facial landmarks [closed]
opencv
python
android
face
554
views
no
answers
no
votes
2020-06-10 03:07:01 -0600
berak
How to find the real distance between two ArUco markers.
aruco
computervision
opencv
python
tetragramm
526
views
no
answers
no
votes
2020-06-08 09:24:47 -0600
nvedia
Delete frames from video with a specific color or object in it
python
Open
Video
c++
opencv
video-editing
768
views
no
answers
no
votes
2020-06-06 21:40:38 -0600
supra56
cloud and cloud shadow detection
python
opencv
remote_sensing
159
views
no
answers
no
votes
2020-06-06 16:20:15 -0600
Kiwi_gamer01
Is there a way to use the final OpenCV image as a camera?
opencv
python
camera
putText
asCameraOutput
7k
views
1
answer
no
votes
2020-06-05 22:39:58 -0600
supra56
OpenCV does not detect the my rectangle [closed]
opencv
python
rectangle
Split
208
views
no
answers
no
votes
2020-05-31 09:52:12 -0600
Suny
Is the function cv2.bitwise_or() use in dilation can be use in erosion ?
opencv
python
computervision
Morphological
Erosion
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