Re: ICC v4
Re: ICC v4
- Subject: Re: ICC v4
- From: Graeme Gill <email@hidden>
- Date: Fri, 18 Nov 2005 14:39:27 -0800
Rich Apollo wrote:
"PCS" has a very large gamut...your result will be very desaturated
indeed.
Okay. You're saying the current method is "inefficient", for lack of a
better term. Is that correct?
Umm - not sure, lost too much context. I would have expected
that most users term for getting a dull looking print from
a reasonable looking original on a printer capable of colorful
outut would be "disappointment".
One of the limits of ICC V2 is that the destination profile
doesn't usually know the source colorspace.
I thought that was by design.
I would assume not. I think that practical color management
at the time the ICC format was originally designed was relatively
ignorant of the importance of gamut mapping, and glossed over this
aspect in the effort to get something out there.
And what is scRGB?
Microsoft's new wide gamut RGB. Basically a 16 bit linear sRGB,
with device value range of -0.5 to 7.5 (rather than 0.0 to 1.0).
I think it has been submitted as an ISO standard. I get the
impression it has been aimed at photographic input and subsequent
reproduction. (hence the large allowance for overrange or "specular
component" values.) Maybe Microsoft could be using this as their
rendering space in their XPS implementation.
Graeme Gill.
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| >Re: ICC v4 (From: Rich Apollo <email@hidden>) |