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如果要要调整cv2.imshow显示出来的窗口大小,
需要使用cv2.namedWindow(‘窗口标题’, 默认参数)
参数
cv2.WINDOW_NORMAL # 用户可以改变这个窗口大小
cv2.WINDOW_AUTOSIZE # 窗口大小自动适应图片大小,并且不可手动更改。
cv2.WINDOW_FREERATIO # 自适应比例
cv2.WINDOW_KEEPRATIO # 保持比例
cv2.WINDOW_OPENGL # 窗口创建的时候会支持OpenGL
- CV_WINDOW_NORMAL or CV_WINDOW_AUTOSIZE:CV_WINDOW_NORMAL enables you to resize the window, whereasCV_WINDOW_AUTOSIZE adjusts automatically the window size to fit the displayed image (seeimshow() ), and you cannot change the window size manually. 可以改变窗口大小 vs 自适应不能改变窗口大小。
- CV_WINDOW_FREERATIO or CV_WINDOW_KEEPRATIO:CV_WINDOW_FREERATIO adjusts the image with no respect to its ratio, whereasCV_WINDOW_KEEPRATIO keeps the image ratio. 调整图像不管比例 vs 保持原图比例。
- CV_GUI_NORMAL or CV_GUI_EXPANDED:CV_GUI_NORMAL is the old way to draw the window without statusbar and toolbar, whereasCV_GUI_EXPANDED is a new enhanced GUI. 无状态栏和工具栏的普通版GUI 和 增强版GUI
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