Get pixels and colours from NSImage

Question

I have created an NSImage object, and ideally would like to determine how many of each pixels colour it contains. Is this possible?

Answer 1

Using colorAtX with NSBitmapImageRep does not always lead to the exact correct color.

I managed to get the correct color with this simple code:

[yourImage lockFocus]; // yourImage is just your NSImage variable
NSColor *pixelColor = NSReadPixel(NSMakePoint(1, 1)); // Or another point
[yourImage unlockFocus];