从AVI文件中提取一些帧图片，导入AVI文件，得到图片-AVI file to extract from a number of color photographs, import AVI file, get the picture

视频关键帧提取，通过视频图像帧的颜色直方图来提取视频中的关键帧。-Video key frame extraction, through the video image frames of color histogram to extract the key frames in the video.