[argyllcms] Re: Profile input white not mapping to output white
- From: Chris Lilley <chris@xxxxxx>
- To: Iliah Borg <ib@xxxxxxxxxxx>
- Date: Mon, 26 Nov 2012 19:36:56 +0100
On Monday, November 26, 2012, 7:28:34 PM, Iliah wrote:
IB> Dear Ben,
>> Perhaps an iterative or integrated (in the Calculus sense) approach could
>> permit doing color profiling on the raw channel data before demosaicing?
IB> Before demosaicking, that is before some form of recombination of
IB> raw channels, we do not have colour information at all. We need to
IB> run recombination / demosaicking to calculate two missing
IB> components for each pixel. Raw channel data is some form of
IB> monochrome, recorded as shades of grey so to speak.
This is true if spatial resolution is of importance. For large, evenly lit
solid color patches, though, it seems that per-channel averages over a large
number of photosites could be done without demosaicking.
--
Chris Lilley Technical Director, Interaction Domain
W3C Graphics Activity Lead, Fonts Activity Lead
Co-Chair, W3C Hypertext CG
Member, CSS, WebFonts, SVG Working Groups
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