Re: ImagePrint Answers
Re: ImagePrint Answers
- Subject: Re: ImagePrint Answers
- From: "Cris Daniels" <email@hidden>
- Date: Thu, 23 Jan 2003 18:45:17 -0400
<Oh, now the challenge I got (off list of course) is that I use a CMYK
target. So the plot thickens. I suggested to DuWayne he keep EVERYONE in the
loop about this so hopefully he will post this clarification.>
I thought it was pretty clear that he wanted to build a CMYK profile from the
get-go, and it cannot and is not done like building a 3 color RGB profile.
This is easily validated thru both testing and by Colorbyte. If I understand
correctly, this is the "argument".
Me<> A good profile will print with the right contrast, and trying to tweak
>
washed-out softproofs for fine art paper will put you in the nuthouse.
Andrew< You're making a big assumption that profiles somehow know something
about
the images they are converting. They don't.
Of course they dont know what they are converting, thats what the rendering
intents are for. You are also making the assumption that the file needs
tweaking after the profile is used to soft proof with, this is not the case
for a good profile. Lousy profiles will give you headaches galore in this
regard, you can't tweak your way out of the crap that the scanner based
profilers give you or the nasty hue errors that still plague some current
profilers. A high quality profile will be optimized for both the black and
white points, contrast curve, and other visual attributes that the profile
controls. If you have a file with correct contrast, and the output profile is
spot on, there is no reason to compensate because the preview may be washed
out. It is going to look different to preview files thru Luster paper and fine
art paper, there is nothing broken.
Andrew<If I'm printing on Matt paper and I want a higher dmax or more
saturated
appearing output, yes, I could switch to Luster. But that's not always an
option. Sometimes the image has to be printed on Matt. You'll never get that
print to look like it's printed on luster I agree. But you can get closer
than simply saying the profile is what that profile is, convert and print.
This workflow if fine if the final print isn't that demanding but there are
tools at your disposal that can improve what you get to some degree.>
I guess that this "some degree" is what is up in the air, I can find medias
that are beyond help of even the best expert tweaker, so there are distinct
cases where abandoning a media might be needed. This is the same case with
bronzing of the Ultrachromes, switch media and get on with your life.
As far as the IP display, it is extremely close in my installation to
Photoshop with BPC and paper white checked. I spoke with John today and he
said that they dont treat the display as absolute black (which it isn't
anyway), and that they are always using black point compensation. I guess some
of this is how they think that this should work, it doesn't really make them
wrong.
Cris Daniels
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