Re: About that red sweater
Re: About that red sweater
- Subject: Re: About that red sweater
- From: Roger Breton <email@hidden>
- Date: Sun, 15 Jul 2007 19:06:57 -0400
Hi Eric,
We've discussed the technical merits of your approach many times in the past
and I wish I could have deep enough pockets to buy a large integrating
sphere and a PR-650 spectroradiometer to characterize the spectral RGB
sensitivities of my particular Nikon D100. I'm convinced this gives the user
the utmost rendering control over the image.
By any chance, could there be some kind of "poor man" approach to what
you're doing?
Roger Breton
> My approach is in principle quite simple. But its optimized for my particular
> workflow with a custom plugin (my wife does plugins) so its hardly general
> purpose or a commercial solution. Starting with fundamental camera
> characterization data (spectral sensitivities, linearity, etc.) and combining
> with image
> meta data (white point, exposure information, etc.) and image statistics I
> calculate an image-specific profile optimized for each unique scene that
> estimates
> the scene appearance (not colorimetry). This happens on open and the profile
> is created dynamically, embedded, and assigned automatically so the user (me)
> never need be concerned with profiling matters. The first time I see the image
> in Photoshop its an appearance estimate of the original scene and I can
> control the rendering to output from there. In my experience, the better the
> appearance estimate, the less manual rendering required for output.
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