Re: How to open CMYK TIF in Cocoa?
Re: How to open CMYK TIF in Cocoa?
- Subject: Re: How to open CMYK TIF in Cocoa?
- From: Todd Freese <email@hidden>
- Date: Fri, 27 Jan 2012 10:16:31 -0600
I stand corrected as I have learned a lot more about this. They are premultiplied. Even though I got my feature working using libTiff, I like Jens idea of just walking thru the alpha data and manually setting the values. This would save having yet another lib linked in and seems to be a cleaner path.
Todd
On Jan 27, 2012, at 9:28 AM, Fritz Anderson wrote:
> Are the pixels "not there," or are they premultiplied?
>
> <http://en.wikipedia.org/wiki/Alpha_compositing>
>
> — F
>
> On 26 Jan 2012, at 8:21 PM, Todd Freese wrote:
>
>> The issue is that it only loads the pixels that are allowed by the alpha. Almost no graphic program does this. It should load "all" the pixels and give you the option of using the alpha if needed. Another words, there is no way to just get the full image.
>
>
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