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获取图像的选定（摩擦）区域的坐标，如应用程序 Cinemagram
任何帮助我将如何进行摩擦以选择所需的图像区域，例如应用程序 Cinemagram
我也想像应用程序一样获取选定（或摩擦）图像区域的坐标
电影摄影