Re: Cross rendering question
Re: Cross rendering question
- Subject: Re: Cross rendering question
- From: Nathan Duran <email@hidden>
- Date: Mon, 27 Jun 2005 17:03:43 -0700
> So rhetorically, if the printing press data is not the Source profile (that
> was Assigned in Photoshop) then are you suggesting that the Source profile
> color spaces should be unknown?
No, the source profile should absolutely be known. If it isn't then neither
you nor Photoshop have any idea how the color numbers in that file are
supposed to be interpreted, and the default working space will typically be
assumed. Choosing a profile at random to tag it with just because you think
it needs one doesn't make any sense, but if you absolutely had to, you
should at least pick an input or working space profile that might have some
slim chance of being close to correct (probably starting at sRGB and working
your way up until it looks right). Printers do not make computer files, they
make pictures on paper, so profiles made from and for printers should not be
assigned to image files that were produced by a scanner, camera or computer
(as would be the case for screenshots, original illustrations and printer
targets generated by profiling software) if you're after color accuracy.
Doing this looks absolutely horrible.
Aside from that, he said he was using an EyeOne printer target as part of
his test image, and that file should really be kept in LAB space throughout
the process anyway. If it isn't, then he probably isn't making accurate
profiles to begin with.
Now if by "assign" he actually meant "chose from the Proof Setup menu", then
this is all a wild tangent and some clarification as to exactly what steps
were taking would be necessary, as I've clearly misunderstood.
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