I don't know how I missed the getImageData() method for canvas. I looked for something like it before and I couldn't find it.
I am now going to use it to check for collision instead of making arrays of pixel locations for each object in my game. I will have to update this post when I am not studying the bar.
Here is a tutorial: http://tutorials.jenkov.com/html5-canvas/pixels.html
I am going to use it to check whether a baby exploding monkey hits the ground in my game, "monkeys throwing monkeys at monkeys."
Here is a post documenting how to use it to break Captchas: John Resig: - OCR and Neural Networks.
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