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ArUco detection on macOS (AVFoundation → OpenCV 4) intermittently returns no markers — sanity check on params/pipeline?
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4
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94
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June 17, 2026
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Extract data from rect = cv2.minAreaRect(c) structure (tuple?)
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1
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143
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December 21, 2025
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How to distinguish exterior wall outline lines from hatch, dimension, and view-crop lines in architectural elevation PDFs?
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4
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97
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May 11, 2026
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Seeking collaboration: AI-powered foot measurement & size recommendation using OpenCV (for online sports shoe brand)
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2
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113
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April 16, 2026
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IMX8MP verdin opencv face detection
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2
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114
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December 24, 2025
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Can't read mp4 on alma linux ( = RHEL) system
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4
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90
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May 19, 2026
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OpenCV Raspicam Ubuntu 24 Server
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2
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107
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June 5, 2026
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Pip install opencv-python (still in old version)
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1
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137
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June 17, 2026
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findFile() Cannot find sample image
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2
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129
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November 23, 2025
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Help with the method of expanding black and white background text
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2
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107
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November 17, 2025
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Homography-based master/slave PTZ camera sync — is this the right approach?
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1
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127
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July 2, 2026
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Unsure what the problem is with canny edge detection issues
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2
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104
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January 31, 2026
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Why is the operation `S0 >> 4` performed when the `resize` function takes `u8` input and a scalar for the V-direction? Since `int32` would not overflow in the scalar case, why is this operation still necessary?
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4
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83
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September 25, 2026
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RC Boat tracking for Crossing Line event
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4
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82
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September 24, 2026
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The transition to the desired frame does not work cap.set(CAP_PROP_POS_FRAMES, 100);
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5
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79
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March 20, 2026
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Canny cannot detect valid edges against similar backgrounds
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1
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127
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November 3, 2025
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Matchtemplate() with masks on CUDA CPU
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1
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121
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December 5, 2025
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Nvidia Hardware Optical flow costbuffer question
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3
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87
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March 28, 2026
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Looking to contribute to OpenCV — GSoC 2027 aspirant
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1
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118
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August 7, 2026
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Inaccurate metrology measurements in OpenCV orthomosaic from three 48MP cameras
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1
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109
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May 8, 2026
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OpenCV with CUDA for C++ help
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0
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154
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May 12, 2026
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Computer Vision Task
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1
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110
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September 18, 2026
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Abort detection
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1
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104
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August 7, 2026
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Inquiry About OpenCV Participation in GSoC 2026
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1
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107
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October 23, 2025
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Calculation of pipe dimensions, pipe geometry
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1
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109
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June 17, 2026
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Best vision tool for part identification?
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1
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104
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April 11, 2026
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No java so (shared object) with docker build of custom modules
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1
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104
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November 3, 2025
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Can not get through with this problem, can someone help?
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1
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102
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January 4, 2026
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Seeking advice: self-training workflow for small object counting (2K camera, no pretrained models)
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1
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101
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October 24, 2025
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Net.forward crash using cv::dnn::blobFromImages
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2
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83
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January 20, 2026
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Real-Time Detection of Vertical Tongue Movements via Mobile Camera — Choosing the Right Approach
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1
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103
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June 17, 2026
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Image preprocessing for OCR on glossy, curved and unevenly illuminated packaging
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2
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79
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September 18, 2026
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I've made OpenCV Funtion Testing Board for the beginners
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0
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134
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February 15, 2026
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[GSoC 2026] Interest in Idea #7: Automated Code Hygiene & Security Hardening
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3
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71
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March 22, 2026
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Multi-camera OpenCV project. camera indices change
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0
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131
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November 26, 2025
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Microsoft made std::mutex constexpr in the STL for VS17.10 and later
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1
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91
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June 24, 2026
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Topic: OpenCV error in code::blocks
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1
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93
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April 14, 2026
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solvePnPGeneric() solution order
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1
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98
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March 23, 2026
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OpenCV Open GSOC 2026
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0
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128
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February 10, 2026
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Stereo Calibration: Very high radial distortion coefficients
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3
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65
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May 26, 2026
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Prospective GSoC 2026 Student - Interest in Quantized Models & Slack Invitation
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2
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84
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February 5, 2026
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Trying to detect the color red in opencv c++
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0
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130
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January 6, 2026
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Valgrind reports TLS memory leaks on threads joined before OpenCV thread pool is even initialized
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0
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124
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November 6, 2025
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Is Pnp on moving object possible?
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1
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90
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October 16, 2025
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What camera to use for low-latency with high fps?
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1
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83
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April 3, 2026
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Can I copy or relocate OpenCV GPU support to another windows 11 computer?
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1
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83
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November 7, 2025
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Fine tuning image selctions
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1
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79
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June 9, 2026
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Opencv-contrib C++ VSCode
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0
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128
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January 8, 2026
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Unclear and unstable meaning of VideoCapture camera index on Windows (MSMF) when multiple cameras are present
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0
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108
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December 18, 2025
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What kind of algorithm should I use?
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0
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108
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August 17, 2026
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