Re: scanner profiling (again)
Re: scanner profiling (again)
- Subject: Re: scanner profiling (again)
- From: Armand Rosenberg <email@hidden>
- Date: Tue, 16 Dec 2003 12:03:33 -0500
Jim,
Thank you for replying. I have a few comments, originating in confusion.
At 5:21 AM -0500 12/16/03, Jim Rich wrote:
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.
OK, I understand. I am surprised, however, that using a target on the
same type of film as a properly exposed (and processed) positive
image leads to such large differences in wp and bp as I see. I also
don't understand why scene content would matter at all in the
situation I described.
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.
So you are suggesting to assign profile BEFORE adjusting wp and bp?
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.
There's the rub. As far as I can tell, even if you do the wp and bp
adjustments in the scanner driver, those settings are still applied
AFTER the scanner captures the data. So if you can transfer 16-bit
data to PS, I see no advantage if you apply those settings in the
scanner driver as opposed to (later) in PS.
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 don't have to fiddle with the post scanned
file.
If those scanner driver settings actually modified the data capture
process, I would full-heartedly agree with you. But since those
settings appear to modify data after capture, I see no advantage to
having all those adjustments present in the scanner driver (except
for the *convenience* of not having to adjust each scan in PS later).
So I stand tall in my confusion, for now ;-)
Armand
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