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Learn OpenCV : C++ and Python Examples

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## Description Hello. I have discovered a performance degradation in the plot function of matplotlib version 3.3.0. And I notice the research project, Face-Recognition-with-ArcFace, depends on pandas 3.3.0 in requirements.txt....

circle(image_copy3, (contours2[i][0], contours2[i][1]), 2, Scalar(0, 255, 0), 2)是不是要改成circle(image_copy3, Point(contours2[i][j].x, contours2[i][j].y), 1, Scalar(0, 255, 0), 1);才能达到预期效果

As the code of train.py doesn't have learning rate parameter, how should I adjust this parameter? https://github.com/spmallick/learnopencv/blob/master/PyTorch-Multi-Label-Image-Classification/train.py

Thank you so much for the amazing tools! I am trying to run the repository https://github.com/spmallick/learnopencv/tree/master/Real_Time_Deep_SORT_using_Torchvision_Detectors with the help of the page https://learnopencv.com/real-time-deep-sort-with-torchvision-detectors/ by Google Colab. I needed to change...

Hello my teacher. I have homework to do. I aim to find the x and y position in meters on a video using Orb-slam3. Can you help me with this...