First time here? Check out the FAQ!
Hi there! Please sign in
help
faq
tags
users
badges
This forum is disabled, please visit
https://forum.opencv.org
ALL
UNANSWERED
Ask Your Question
RSS
Sort by »
date
activity ▼
answers
votes
928 questions
Tagged
opencv
×
python
×
216
views
no
answers
no
votes
2020-08-30 01:48:27 -0600
sonnguyen9800
Finding corresponding pixel coordinate of a single point before and after cv2.remap
python
opencv
stereocamera
495
views
no
answers
no
votes
2020-08-20 09:17:22 -0600
comdie
Extract data from a scoreboard
OCR
opencv
Text
detect
python
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
13k
views
3
answers
1
vote
2020-08-13 22:51:08 -0600
jcrist
How to merge nearby rectangles
opencv
python
contours
rectangles
11k
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
625
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
2k
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
1k
views
no
answers
no
votes
2020-07-13 09:56:54 -0600
Malathi_72
smooth edges in binary images
opencv
python
837
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
117
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
3k
views
2
answers
no
votes
2020-07-08 23:40:07 -0600
sturkmen
What does the history of this function “createBackgroundSubtractorMOG2” means?
python
opencv
61k
views
2
answers
1
vote
2020-07-08 07:00:19 -0600
supra56
Python-openCV: Extracting (x,y) coordinates of point features on an image
opencv
python
4k
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
no
answers
no
votes
2020-07-03 14:33:16 -0600
Sara Ahmed
OpenCV Decompose projection matrix outputs
opencv
python
3dreconstruction
Calib3d
projection-matrix
157
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
996
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
313
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
224
views
2
answers
no
votes
2020-06-27 07:56:41 -0600
supra56
Opencv Doxygen for python
opencv
python
437
views
1
answer
-1
votes
2020-06-27 05:20:25 -0600
supra56
Python type casting [closed]
python
opencv
269
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
608
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
571
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
551
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
864
views
no
answers
no
votes
2020-06-06 21:40:38 -0600
supra56
cloud and cloud shadow detection
python
opencv
remote_sensing
« previous
1
2
3
4
5
...
31
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
opencv
×30
python
×30
image-processing
×2
3dreconstruction
×1
android
×1
aruco
×1
c++
×1
Calib3d
×1
calibrateCamera
×1
camera
×1
cmake
×1
computervision
×1
configuration
×1
contours
×1
cv2
×1
cvHaarCascadeClassi
×1
detect
×1
DLL
×1
dlls
×1
face
×1
gstreamer
×1
image_recognition
×1
image-recognition
×1
IMPORT_CV2
×1
ImportError
×1
missing
×1
OCR
×1
Open
×1
PnP
×1
projection-matrix
×1
RaspberryPi
×1
rectangles
×1
remote_sensing
×1
rtsp
×1
stereocamera
×1
tetragramm
×1
Text
×1
Video
×1
video-editing
×1
Copyright
OpenCV foundation
, 2012-2018. Content on this site is licensed under a
Creative Commons Attribution Share Alike 3.0
license.
Powered by Askbot version 0.10.2
Please note: OpenCV answers requires javascript to work properly, please enable javascript in your browser,
here is how
dummy
×
