Re: [CinePaint] Working with RAW data

On Tue, 18 Mar 2008, Claus Cyrny wrote:
>
> I'm just reading Kai-Uwe's text, "CinePaint -- 16-bit imaging. From 
> digital camera to print" 
> <http://www.behrmann.name/cms/cinepaint/bildbearbeitung/cinepaint_ccorrection.html>, 
> since I would like to start working with RAW data in CinePaint. My 
> question: Where can I obtain an ICC profile for the camera I'm 
> using. It's a Canon IXUS 500 (not mine), and I

I don't think that there is any such animal.  ICC profiles require 
that the device have entirely repeatable characteristics and be used 
in an entirely repeatable environment.  Ordinary digital cameras will 
not have repeatable characteristics due to the way that they 
automatically adjust for each scene.  The only possibility is if the 
camera is used in an entirely manual mode in a professional studio 
where lighting and backdrops can be entirely recreated.  In that case 
you would take photos of a standard calibration target and use 
software to create the ICC profile.  The ICC profile created would 
only be valid for the exact conditions it was created under.  I think 
that only a scientist or someone wanting to take 1000 shots of 
something with minor changes (think of the film "Corpse Bride") would 
be interested in something so extremely limited.

Typically one uses the human eye to adjust the image on a calibrated 
display which has an ICC profile.  The colors in the image are then 
defined by the display (or its ICC profile).  ICC color profiles can 
then be used to support any further processing such as printing.

Bob
======================================
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/


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