Topic Replies Views Activity
Useful Links (Read First!)

Before asking a question in the forum, check out some of these resources and see if you can find a common answer. Documentation Tutorials Super Helpful Wiki Bugs and Issues Here are some additional useful links. Of…

1 2856 February 26, 2021
Welcome to OpenCV Forum!
30 3181 July 12, 2021
cv:assertion failed with perspectivetransform
Python
2 7 September 26, 2021
Raspberry Camera in dark/low light room Vs Smartphone
Python
raspberrypi ,  videoio
2 12 September 26, 2021
Export OpenCVModules error trying to build on void linux
Android/Java
build
1 11 September 26, 2021
Correct image for distortion by external lens
Python
calib3d ,  practical ,  cg ,  optics
2 32 September 26, 2021
Does a += 20 act differently to a = a + 20 for openCV?
Python
3 34 September 25, 2021
Yolov3 Python Error
Python
dnn
3 39 September 25, 2021
Defects detection
Python
0 27 September 24, 2021
How to record and playback but with a specified delay
Python
2 34 September 24, 2021
Can not get SolvePnP to work to get Monocular Odometry camera trajectory
triangulatepoints ,  calib3d ,  solvepnp ,  slam
1 18 September 23, 2021
How to statically link mingw64 deps in fat java opencv library?
Android/Java
mingw ,  build
4 27 September 23, 2021
Creating trackbar in c++
C++
highgui
2 33 September 23, 2021
Decode 12 video streams simultaneously
Python
performance ,  videoio
5 60 September 23, 2021
Identify head and tail of the fish
Python
imgproc
1 28 September 23, 2021
Estimate weight from segmented objects
1 22 September 23, 2021
Unwrap Image to height map
structured_light
6 39 September 23, 2021
Tried to split image and kept getting error message
Python
8 21 September 22, 2021
Index of corners in contour change when shape is rotated
Python
2 22 September 22, 2021
Detecting specific shapes
Python
3 46 September 22, 2021
Changing size of points in point cloud created with cv::viz::WCloud()
C++
viz
3 41 September 22, 2021
openCV support in dot net Framework 4.5
3 29 September 22, 2021
"undefined reference" when linking against libopencv_world 4.5.3
C++
build
2 27 September 22, 2021
Blur is not a member of cv::cuda
C++
cuda
27 109 September 21, 2021
Python to exe file
Python
1 40 September 21, 2021
HoughCircles method: memory problem with large images
Python
imgproc
6 52 September 21, 2021
Delay in VideoCapture because of buffer
Python
videoio
11 1202 September 21, 2021
Cv::floodfill CUDA version
cuda
1 37 September 21, 2021
Check if 2 images were originally single image split
Python
1 32 September 20, 2021
Python opencv subprocess write return broken pipe
Python
videoio
2 33 September 20, 2021