Crowdsourced Search for the outcome of Missing Malaysian Flight MH370.

I have a question though. Why is this manual?

I don't know much about CV, but even from the a link I saw the other day about SimpleCV, it seems like there should be a way to at least filter out all of the quadrants that are simply ocean, and prioritize the quadrants that are -almost entirely- ocean.

I'm sure I'm oversimplifying this so I look forward to the education -- thanks.