Re: Converting NSImage with multiple image representations (HiDPI+LowDPI) into grayscale NSImage
Re: Converting NSImage with multiple image representations (HiDPI+LowDPI) into grayscale NSImage
- Subject: Re: Converting NSImage with multiple image representations (HiDPI+LowDPI) into grayscale NSImage
- From: Ken Thomases <email@hidden>
- Date: Mon, 10 Sep 2012 10:11:06 -0500
Please don't cross-post.
On Sep 10, 2012, at 2:31 AM, Abhijit Apte wrote:
> 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.
Why not? You can create NSBitmapImageReps from CGImages, set the size of each using -setSize:, and add them to an NSImage using -addRepresentation:.
Regards,
Ken
_______________________________________________
Cocoa-dev mailing list (email@hidden)
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:
This email sent to email@hidden