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Qt+OpenCV+VideoInput 摄像头图像显示

于 2020-12-11 发布
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代码说明:

工具环境:openCV2.48Qt5.2.1 用的是VS2010的编译器videoInput 0.1995 最近使用Qt+openCV获取摄像头的图像但是仅仅只是使用openCV自带的方法显示图像时,发现计算机CPU使用率比较高,最主要的一点是摄像头驱动自带的设置图像参数的无法直接调用出来网上查找了很多资料发现 openCV内部是使用了videoInput类的方法实现的.但是没有引用它自身的方法.经过几天的研究,成功使用videoinput显示摄像头图像,并且可以弹出摄像头驱动自带的图像设置窗口,不过好像那种USB免驱动的摄像头无法打开,因为用不到就没深入探究.

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