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Some problems with old OpenCV library and haarcascade
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3
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14
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April 27, 2025
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Clarification on CALL_HAL Usage in pyrDown and Handling of ROIs in OpenCV
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2
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65
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November 14, 2024
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How to detect if FileNode operator >> (stream) failed
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2
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37
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November 8, 2024
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[opencv.js] support for findHomography()
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22
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4265
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October 22, 2024
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Error in cv2.add function
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5
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59
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August 16, 2024
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Using the Mat constructor to reshape will cause the address to be cleared and released
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2
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123
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July 4, 2024
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Error: (-215:Assertion failed) i < dims() in function 'cv::MatSize::operator []'
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6
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262
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April 9, 2024
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How to avoid memory fragment when creating cv::Mat?
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1
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210
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March 12, 2024
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Is there a library data type that can handle both UMat and Mat conversions
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0
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258
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January 13, 2024
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Why does use local variable in Mat::resize()?
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4
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347
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January 2, 2024
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Use NVIDIA GeForce RTX 3070 run opencl version of cv::dft error
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0
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250
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November 14, 2023
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How to initialize cv::UMat by using data pointer?
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4
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538
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November 8, 2023
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Passing a nullptr to data in the Mat Constructor
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2
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345
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September 12, 2023
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Assessment of the difficulty in porting CPU architecture for openCV
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1
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332
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September 6, 2023
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Use universal SIMD intrinsics in my application and set AVX2 or AVX512
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2
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1017
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June 17, 2023
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OpenCV compilation Question
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13
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568
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June 15, 2023
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Slicing operation help
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6
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1844
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June 7, 2023
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Bug regarding Matrix return
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2
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296
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May 31, 2023
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Why use R2C of DFT will reduce the width of Mat
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6
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504
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May 26, 2023
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Why DFT_REAL_OUTPUT is different from the real part of complex result
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4
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457
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May 24, 2023
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Exposing CV_MAKETYPE(depth, cn) and CV_8UC(n), CV_8SC(n) etc. to python binding
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2
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504
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May 16, 2023
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Problem with pointer arithmetic for a filtering algorithm
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7
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391
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May 12, 2023
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After processing the semantic segmentation results of Deeplabv3 using Argmax, the results were incorrect. Please help me take a look
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7
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663
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May 11, 2023
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Problem with using cv::utils::fs;
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6
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546
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May 5, 2023
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Make error : fatal error: va/va.h: No such file or directory
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0
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918
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April 27, 2023
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Mat CV_32SC1 matrix addition has wrong results with OpenCV 4.7 on Mac M1 Pro
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1
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569
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April 16, 2023
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What's the middle dimension for the result of findCountours?
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6
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455
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April 15, 2023
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Values of cv.mean()
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11
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1474
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April 12, 2023
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Why does __null, 0, 0.0 work but (void *)0,nullptr dont work when assignment overload is used
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1
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520
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March 14, 2023
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Opencv causes debug-enabled python interpreter to abort with a refcount error
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1
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949
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March 10, 2023
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