OpenCV

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…	2	22279	March 4, 2022
Welcome to OpenCV Forum!	36	15381	August 10, 2024
Building Opencv.js to include aruco and calib3d calib3d , opencvjs , aruco , build	1	1	January 6, 2025
Finetuning HoughCircles C++	1	6	January 6, 2025
Bottle detection is done but the caps counting of all bottle each row not going with good results Python	0	6	January 6, 2025
OpenCV build error LNK2001: unresolved external symbol "public: __cdecl cv::Mat::Mat(void)" C++ windows , cmake	0	5	January 6, 2025
Make a function take a cv::Point2x C++ programming	9	29	January 6, 2025
Failure in training LBPHFaceRecognizer on Android Studio Android/Java facerecognition	6	16	January 6, 2025
Opencv(4.10.0) with kotlin(2.0.0) Compilation Error Android/Java build	0	7	January 6, 2025
Strange code in Fast Keypoint detector: (i - 3) % 3 C++ features2d	3	11	January 5, 2025
Failing to install on raspberry pi with 32 bit OS Python raspberrypi , build	0	15	January 4, 2025
OpenCV Python preprocessing strategies for OCR (pytesseract) character recognition Python ocr , tesseract	1	20	January 4, 2025
Error: (-215:Assertion failed) !ssize.empty() in function 'cv::resize' occur when runs code on Windows but works fine on Mac Python	13	28421	January 4, 2025
Build fails during compilation of cudaimgproc build , cmake , cuda	11	49	January 4, 2025
How to crop the images in an image? Python imgproc	0	16	January 3, 2025
OpenCV 4.9.0 with CUDA Build - Python: "No Module Named 'cv2'" Python windows , build	2	47	January 3, 2025
Training model to detect color instead of shape/features? AKA "Banana ripeness detector" C++ facerecognition , color , svm	0	723	January 19, 2022
Multiple composite cameras with frame grabber and opencv	0	33	October 16, 2024
Help - understanding how to generate a point cloud from SinusoidalPattern::unwrapPhaseMap()	3	48	January 3, 2025
Camera Supports 255 in FFMPEG, but Only getting ~185 in OpenCV Python windows , videoio	14	86	January 3, 2025
Splitting the "G" in a Guinness - OpenCV analysis to detect point of beer line in ROI Python edge-detection	0	11	January 2, 2025
GStreamer Issue with OpenCV in Virtual Environment on Jetson Orin Nano (JetPack 6.1) Python gstreamer , build , nvidia	1	13	January 2, 2025
Detecting similar objects in close proximity	2	33	January 1, 2025
How to display images (np.hstack) in tkinter frame Python programming	2	22	December 31, 2024
Face recognition with webcam and find reverse images from inhouse Photo Library Python programming	0	16	December 30, 2024
cv2.VideoWriter saving corrupted video after applying MOG videoio	5	22	December 29, 2024
EMGU windows gets frozen when this gets open via "Imshow" method emgu , csharp	2	16	December 29, 2024
How to Reduce FPS for Live Camera Feed (RTSP) videoio , emgu , csharp	0	18	December 28, 2024
Emgu.CV.CvInvoke throws DllNotFoundException: Unable to load DLL 'cvextern' emgu , csharp	2	17	December 28, 2024
Camera calibration, big speed difference between Windows and Linux versions calib3d , build , calib	6	31	December 28, 2024

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…