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Re: NSImage vs CGImage

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Re: NSImage vs CGImage

Subject: Re: NSImage vs CGImage
From: David Duncan <email@hidden>
Date: Mon, 18 Jun 2007 12:49:05 -0700

On Jun 17, 2007, at 4:33 AM, Barry wrote:

I'm writing an app which needs to read an image, convert pixel data to L*a*b (if not already in this colorspace), do some maths on this data & write a set of grayscales.

Any suggestions very welcome.

Unfortunately, as you've already discovered, there is no way to get the pixel data directly from a CGImageRef. Your best bet would be to file an enhancement request so that the Quartz team can fully understand what your (and presumably other developers') requirements are so that this type of functionality can be implemented in the future. -- David Duncan Apple DTS Quartz and Printing email@hidden


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  >NSImage vs CGImage (From: "Barry" <email@hidden>)




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