Getting pixel data from UIImageView — works on simulator, not device

Question

Based on the responses to a previous question, I\'ve created a category on UIImageView for extracting pixel data. This works fine in the simulator, but not when deployed to

Answer 1

It looks like that in the code posted in the original questions instead of:

NSUInteger x = (NSUInteger)floor(point.x);
NSUInteger y = height - (NSUInteger)floor(point.y);

It should be:

NSUInteger x = (NSUInteger)floor(point.x);
NSUInteger y = (NSUInteger)floor(point.y);