Re: Zooming in on Fabrics
Re: Zooming in on Fabrics
- Subject: Re: Zooming in on Fabrics
- From: Rolf Gierling <email@hidden>
- Date: Tue, 06 Mar 2001 10:00:48 +0100
email@hidden wrote:
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I profiled my ArtixScan 1100 with a Kodak Q60 and Microtek's ICC Scanner
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Profiler software, scanned it with full dynamic range and no auto
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corrections at 8-bit RGB with the scanner profile embedded, then brought
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them into PS6 and converted from the scanner's profile to my offset's
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profile. Voila. Sharpened, cropped, delivered for printing.
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Okay, they came back and are quite a bit too green, under any light, D65 or
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D50. I was quite disappointed.
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I also used a Spectrolino and scanned a hundred Pantone/Scot-Dic fabric
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swatches twice, averaged the LAB values, then threw them throught ICCLabCalc
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Pro to get CMYK percentages for my offset press. Almost all the colors
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printed perfectly. A little off in the light tans and browns, but nailed 87
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out of 90. (So I've determined that a 45/0 spectro works just fine for
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Pantone textile swatches.)
Just one comment on your scanner profiling.
I ve been using a lot of scanner targets, and they all were very different.
Using an agfa target and ScanOpen ICC, the average deltaE went down from
10 to 2. Using a Kodak target, it went down to 1.3 and using the Fuji target
it was about 0.8.
Taking a closer look on the targets, it was visible that especially the neutral
patches had strong colorcasts on the Agfa target and Kodak target, while
the Fuji
target was pretty neutral.
Last week I ve got a new Kodak target, from which I would say that it
isnt grey,
but red. I would never use that kind of target for a scanner
calibration, and I
would never expect good results.
Rolf Gierling