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Answers and rating deltas for

Using Objective-C, is there any way to compare two images and get a % difference value returned?

Author Votes Δ
Bill Michell 5 +0.92
Parag Bafna 3 +1.63
sosborn 2 -0.54
Krishna Kishore 0 -3.98
Last visited: Sep 14, 2014, 5:07:29 AM