title: How to extract all the frames from a video using MATLAB and do key frame extraction by any standard method?
body: <p>I have a video to process frame by frame. I want to extract the key frames out of it. So the first task is to grab all the frames. We can read an AVI video using <code>readavi</code> but I am having no idea how to extract the RGB frames. Secondly, if someone can point to any MATLAB implementation for key frame extraction (using any standard method) or can post the code here it will be great.</p>