Re: Zooming in on Fabrics
Re: Zooming in on Fabrics
- Subject: Re: Zooming in on Fabrics
- From: Jeff Harmon <email@hidden>
- Date: Tue, 06 Mar 2001 13:24:28 -0800
on 3/6/01 07:24 AM, Bruce J. Lindbloom at email@hidden wrote:
>
Here you use the term "scanned" while referring to measurements taken with a
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spectrophotometer. If I understand you correctly, no scanner was used in
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this part of your tests.
Sorry. Yes, I meant I took readings with a spectro.
>
When you make a scanner profile using a photographic calibration target
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(e.g. an IT8 target), you are training the scanner to "see" photographic
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originals in the same way your eye sees them. After doing this, the scanner
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is all set for scanning photographs. However, when scanning any other types
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of materials, for example cloth fabric, all bets are off. The spectral
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response of scanners is different from that of the eye, and they can only be
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properly trained (profiled) by using calibrated targets that are made from
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the same dyes or colorants as the originals you will be scanning.
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Photographic dyes which your profiled scanner can see properly are very
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different from the dyes used in cloth fabric, and thus the results are
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disappointing.
Well, I happen to have a hundred good LAB readings of various Pantone fabric
swatches. Can I use them to construct a custom profiling target that would
be better than the Q60? I'm scanning fabrics that are a bit thicker than
the Pantone fabrics, but perhaps it would still be better than Kodak film!
How would I go about generating a new profile based on textiles? Hasn't
anyone already created a textile-based profile target? What software would
I need? Shit, I only have the Microtek Scanner profiling package and
MonacoEZColor 1.6 currently...
I'm basically willing to go whatever distance I need to in order to close
the loop as tightly as possible here. I have a mountain of scanning to do
and not much time!
Thanks for the help.
----------------------------
j e f f h a r m o n
director
colorhythm
1526 woolsey street
berkeley ca 94703
510.647.3689
email@hidden
http://www.colorhythm.com
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