Re: hardware advice
Re: hardware advice
- Subject: Re: hardware advice
- From: neil snape <email@hidden>
- Date: Thu, 29 Nov 2001 23:45:51 +0100
on 29/11/2001 21:20, Bruce Fraser at email@hidden wrote:
>
Paper fluorescence isn't really the big problem. Most profiling
>
tools, though, make the assumption that paper white is the brightest
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thing they have to deal with, and they get very confused when
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confronted with, say, a yellow ink with 160% reflectance. Filtering
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the UV (either by taking it out of the light source or by filtering
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before it reaches the sensor) may be an OK short-term solution,
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particularly when we continue to use D50 (which has no appreciable UV
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component) as our standard for evaluating reflective copy, but the
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long-term solution has to be intrsuments that emit UV and detect the
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response of the sample to UV, and software that knows what to do with
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that info when it's fed to it.
>
>
My $0.02...
Well worth much more than 2 cents to us.
This will be a good target for the spectro makers AND the software
developers. A combination of the two will make a big step forward for the
fast paced inkjet and digital printer devices color management. Heidelberg
PrintOpen had a consider fluorescence function that tried to outguess the
measured patches. This works well enough but ideally as you say to have a
calibrated measure of the UV and or fluorescence applied correctly when
building the profiles will be great.
Neil Snape email@hidden
http://mapage.noos.fr/nsnape