Inverting a black and white NSImage
Inverting a black and white NSImage
- Subject: Inverting a black and white NSImage
- From: Eric Gorr <email@hidden>
- Date: Wed, 13 May 2009 18:59:47 -0400
I have a black and white NSImage with some pixels in the image totally
transparent.
I need to change the white pixels to black, the black pixels to white,
and leave the transparent area in the image alone.
The only solution that comes immediately to mind is to get a bitmap
representation of the image, loop over all of the pixels and invert
each one by one. Based on the kind of image I am dealing with, this
should be just fine.
However, I am thinking there is an easier solution, but my mind is
drawing a blank - probably because it is getting late and I should go
home.
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