Re: Affinity Photo and colorsync issue, maybe
Re: Affinity Photo and colorsync issue, maybe
- Subject: Re: Affinity Photo and colorsync issue, maybe
- From: Ben Goren <email@hidden>
- Date: Fri, 25 Mar 2016 09:17:19 -0700
On Mar 25, 2016, at 9:01 AM, edward taffel <email@hidden> wrote:
> On Mar 25, 2016, at 11:14 AM, Ben Goren <email@hidden> wrote:
>
>> ArgyllCMS is so far superior to anything and everything else out there
>
> to what do you attribute this?
Graeme Gill, its author.
> it seems that cmm code for performing transformations must be very similar across most implementations; perhaps, all deriving from some common ancestor [seminal icc code?]: type & quality of profiles is what should make the difference [no?].
No.
The ICC has a file format standard. The basic idea of the fundamental math is nearly trivial; it's all just matrix multiplication, basically.
But there's all sorts of room for creativity and interpretation in how you're going to weight this and filter out that and account for this other, and that's what makes or break a CMM. And, remember: there's more to color management than just making ICC files: there's the sample generation algorithms, the colorimeter and spectrometer device management, linearization routines, and on and on and on.
Most CMMs seem to just do things by the numbers. The text says this is what the transformation should be, and the results pass the "sniff" test; check that box on the marketing materials and move on to the next feature.
Graeme instead has put insane amounts of time into investigating edge cases, figuring out why this-or-that is close but not perfect, and so on.
And it shows.
It probably doesn't hurt that he's forgotten more about color than most of the rest of us will ever know in the first place.
Cheers,
b&
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