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Re: Set Alpha for an NSImage

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Re: Set Alpha for an NSImage

Subject: Re: Set Alpha for an NSImage
From: "douglas a. welton" <email@hidden>
Date: Wed, 30 Jan 2008 14:08:55 -0500

Check out the documentation on Core Image Filters. CIColorCube and CIColorMonochrome may be of interest to you.

later,

douglas

On Jan 30, 2008, at 12:07 PM, Vance wrote:

Hi,
I have an NSImage (black and white) that I want to replace the black color with transparency.

I want it to be replaced in such a way, so even the shades of gray look correct when overlayed on top of another color, lets say blue.
What is the best way of do this?
Thanks.
Vance

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References:  
  >Named image for regular folder? (From: Jim Correia <email@hidden>)
  >Re: Named image for regular folder? (From: Ken Thomases <email@hidden>)
  >Re: Named image for regular folder? (From: Matt Gough <email@hidden>)
  >Set Alpha for an NSImage (From: Vance <email@hidden>)




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