Re: scanner profiling (again)
Re: scanner profiling (again)
- Subject: Re: scanner profiling (again)
- From: Jim Rich <email@hidden>
- Date: Tue, 16 Dec 2003 05:21:17 -0500
On 12/15/03 5:50 PM, "Armand Rosenberg" <email@hidden>
wrote:
>
Since the recent web browser discussion may have overshadowed the
>
clearly more important topic of scanner profiling (just kidding!) I
>
will try this just once more:
>
>
I have 2 basic questions on this topic:
>
>
1) In a ColorSync profiled workflow, using a film target shot on the
>
same film as the images to be scanned, should it be necessary to set
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wp and bp for each (properly exposed) image, or should that
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information be determined from the target ONCE during profiling (at
>
which point it becomes part of the profile)?
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>
(I ask because setting wp and bp for each image seems essential to my
>
workflow, but this involves operator decisions on an individual image
>
basis and thus seems contrary to the ColorSync philosophy.)
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>
2) Is there any advantage in adjusting the wp and bp in the scanner
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driver, or are those settings applied after the scan anyway, in which
>
case they could just as well be applied in PS (in a 16-bit file)?
>
>
And should wp and bp be set before assigning the scanner profile or
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after (or does it not matter)?
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>
Armand
>
_______________________________________________
Armand,
There are a number of points of view on this topic.
My view is that each image has different wp and bps due to factors like
exposure, the scene content, and film processing.
So you want to be sure to capture the full range of the images tones using
a good scanner profile. Once you have done that you would want to fine tune
the wp and bp for each image.
Of course this is in a workflow where you have dumb scanner software and you
cant apply a profile or image processing.
If you have scanner software that is ICC savvy and provides wp and bp tools
as well as a good softproof then you gain the advantage of doing the wp and
bp adjustments before you capture the final image data. This is the get it
right up front approach. In a lot of workflows this is a very good way to
capture optimized images so you don9t have to fiddle with the post scanned
file.
Jim Rich
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