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Original link: http://www.juzicode.com/archives/5323 Return to opencv Python tutorial Because the drawing operation requires parameters such as the coordinates of the starting point and the ending point, it is necessary to understand the coordinate representation method of the image pixel position in OpenCV before drawing. Generally, the Cart ...

Return to opencv Python tutorial Original link: http://www.juzicode.com/archives/5380 Opencv Python tutorial: reading images, displaying and writing images This paper introduces how to deal with still image files. This document introduces how to obtain images from cameras, video files and dynamic picture files, and how to write video files. ...

32.OpenCV face detection and recognition - face detection preface   face detection refers to the process of locating faces in images. 1, Face detection based on Haar   use the Haar cascade classifier provided by OpenCV for face detection. The folder "\ data\haarcascades" in the OpenCV source code contains the t ...

Original Link:http://www.juzicode.com/opencv-python-image-gradient Return to the Opencv-Python tutorial Gaussian smoothing, bilateral smoothing And Mean Smoothing, Median Smoothing The smoothing described can be seen as a "low-pass filter" of the image, which filters out the "high frequency" part of the image to make it ...