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ch02-安装OpenCV/最简单-使用pip安装opencv-python和opencv-contrib-python
- README.md
- opencv-contrib-python.jpeg
ch04-图片
- 4.1_imread_imshow.py

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`@@ -17,6 +17,10 @@`
`17`	`17`	`- python -c "import cv2;print(cv2.__version__,cv2.__doc__,cv2.__file__)"`
`18`	`18`	`- python -c "import cv2;print(help(cv2.CascadeClassifier))"`
`19`	`19`
	`20`	`+- 运行,2个特性`
	`21`	`+ - 鼠标指向某个像素,提示栏会显示当前坐标和RGB数据`
	`22`	`+ - 工具栏有很多实用的功能,可惜不能显示图标`
	`23`	`+ - ![opencv-contrib-python](opencv-contrib-python.jpeg)`
`20`	`24`	`##`
`21`	`25`	`软件包包含预编译的OpenCV二进制文件和Python绑定。`
`22`	`26`	`这可以为Python提供超快速(通常<10秒)OpenCV安装。`

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`@@ -27,7 +27,7 @@`
`27`	`27`	`# cv2.resizeWindow('image', 200, 200) # 不起作用?`
`28`	`28`
`29`	`29`	`cv2.imshow('image', img)#窗口会自动调整为图像大小`
`30`		`-# 按任意键退出`
	`30`	`+# 在窗口上按任意键退出`
`31`	`31`	`cv2.waitKey(delay=0)#返回按键的 ASCII 码值`
`32`	`32`
`33`	`33`	`cv2.destroyAllWindows()`

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