Hi,
I have been running into a problem wherein I need to grayscale all the NSImageRep objects within a NSImage (i.e. say NSImage contains two representations for testimg.png and test...@2x.png). CGImageRef which has a one-to-one correspondence with one image representation. With CGImageRef, the conversion to grayscale is straight-forward. I can pick out NSImageRep objects of NSImage and then use [NSImageRep CGImageForProposedRect:context:hints:] method to extract CGImageRef. I can do grayscale conversion on each of these CGImageRefs, however I cannot put these back into a single NSImage. Is there a way to do this without converting to CGImageRef? How do we handle multiple representations when applying grayscale? Regards -Abhijit _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
