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iPhone Objective C: How to get a pixel's color of the touched point on an UIImageView, even if the parent UIView or itself is being rotated by the CGAffineTransformMakeRotation function?
Will the view property of the UITouch still correctly return the correct pixel of the touched point even if the UIView/UIImageView is being scaled and rotated?
Many thanks for reading
edited: Thanks for the answer & comments, but sorry I still don't know how to get the X,Y point of the scaled/rotated image from the touch event, and then extract the color from it. Would anyone mind to help?
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Use the ColorSync Utility calculator to get the color values of a pixel on your screen. In the ColorSync Utility app on your Mac, click Calculator in the toolbar of the ColorSync Utility window. Click the magnifying glass , then move your pointer over an area on the screen that you want to examine.
A quick google search has revealed some promising leads:
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