title: FFmpeg export specific pixels
body: <p>I'm looking for a way to extract a set of specific pixels from a video (and possibly store them in JSON)</p>
  
  <p>So far i have found FFmpeg which looks like it should do the heavy lifting if i can find the correct commands.</p>
  
  <p>Alternatively I could try using the source and building my own project that just leverages FFmpeg to extract frame data, but i think/hope that's unnecessary.</p>
  
  <p>So if its possible, <strong>What commands could accomplish this?</strong></p>
  
  <p>Or perhapse there is a whole different approach i could take, any help would be great!</p>