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How to get pixel data from a UIImage (Cocoa Touch) or CGImage (Core Graphics)?
Is there a way to look at images in this way? Can somebody point me in the direction of what area to investigate with this?
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Another relevant question (asked by you, no less): http://stackoverflow.com/questions/5284427/how-do-i-get-the-hue-saturation-and-brightness-from-a-uicolor/5284687 – PengOne Jun 18 '11 at 21:33
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@Peng: I don't think that one applies: it's about "components of a color", this is "colors of an image". – jscs Jun 18 '11 at 21:58