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文章目录前言一、last example二、modify the code to draw an unfilled rectangle.1.修改方法第一步第二步前言题目地址为：https://docs.opencv.org/4.x/db/d5b/tutorial_py_mouse_handling.html一、last example完整代码如下：import numpy as npimport cv2 as cvdrawing = False # true if mouse is pres

文章目录前言一、ApplicationSource CodeResult总结前言题目地址：https://docs.opencv.org/4.x/d9/dc8/tutorial_py_trackbar.html题目内容：一、ApplicationSource Code# 开发时间：2022/2/20 20:10# Create a Paint application with adjustable colors and brush radius using trackbars. For dr

文章目录前言Source CodeResult总结前言题目地址：https://docs.opencv.org/4.x/df/d9d/tutorial_py_colorspaces.html题目内容：Try to find a way to extract more than one colored object, for example, extract red, blue, and green objects simultaneously.Source Code# 开发时间：2022/2/2

文章目录前言Source CodeResult总结前言题目地址：https://docs.opencv.org/4.x/da/d22/tutorial_py_canny.html题目内容：Write a small application to find the Canny edge detection whose threshold values can be varied using two trackbars. This way, you can understand the effect o

文章目录前言一、ApplicationSource CodeResult总结前言题目地址：https://docs.opencv.org/4.x/d0/d86/tutorial_py_image_arithmetics.html题目内容：Create a slide show of images in a folder with smooth transition between images using cv.addWeighted function一、ApplicationSource Co