I doubt you could find out *exactly* how much memory is being used. You could 
probably get an approximation by multiplying pixelHeight * pixelWidth * 4 
(assuming A, R, G, B channels), since the image bitmap is likely to be the 
biggest chunk for images of any real size.


On Mar 4, 2011, at 2:18 PM, Rick Mann wrote:

> Is there a way to determine how much memory a given UIImage is using for the 
> in-memory image data?

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