[Openicc] meta data in test chart

[Robert Krawitz]

On Fri, 21 Jan 2011 18:59:59 -0700, Chris Murphy wrote:
>
> On Jan 21, 2011, at 5:35 PM, Robert Krawitz wrote:
>> 
>>> Roll paper may need to invoke special code for the cutter maybe?
>> 
>> It does, but I don't see why the user needs a different recipe for
>> printing to roll paper than to sheet paper.  You select roll or sheet,
>> the driver does the right thing.
>
> This is actually a really interesting question, and I'm not sure
> that there is necessarily a one size fits all answer. In many cases
> for Epson, their cut sheet media is produced by a different company
> than their roll media, of the same name. So not all luster paper is
> actually produced the same way, even though the visual appearance of
> the surface is virtually identical. The color behaviors will be
> slightly different. They're still quite similar but because of this,
> I maintain separate profiles for cut sheet and roll media of the
> same name for otherwise identical driver settings.

Interesting.

Have you found that paper changes over time -- e. g. is Premium Glossy
now the same as Premium Glossy from 5 years ago?  And are all sheet
sizes the same, or do you find differences there?

Another thing here -- there might be multiple recipes that come close,
but aren't identical.  So for imperfect matches, how do we determine
(or help the user find) a best fit?