在图像处理应用中,抓取视频图像对视频进行加工是非常重要的.针对传统的基于VFW技术的方法不能提供流数据等问题,探讨了一种简单的利用IMediaDet实现视频抓取的方法,详细研究了图片的结构、抓取帧的计算方法等,并在CJHJ环境中利用该方法实现了一个视频抓取与回放系统,取得了良好的效果.%Video capture is very important in the image processing and video processing.In view of the problems in the traditional methods unable to supply stream data based on VFW technology,a simple way of video capture by using IMediaDet was discussed.The structure of bit map and the method of image capture were introduced in detail.The system of video capture and play-back is realized using CJHJ,which shows good results.
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