that would be an (almost) trivial task if one was to hack dcraw.
in fact, that would give you a choice of
-- 0.5 res "green" image, or
-- 0.25 res "red" or "blue" image.

if i only had time for that...

mishka


On Thu, 4 Nov 2004 22:34:21 -0500, J. C. O'Connell <[EMAIL PROTECTED]> wrote:
> While we are on the subject of Digital raw files I just
> remembered something I wanted to ask for a while.
> 
> Do all raw file conversion programs convert only
> to color and up-rez the image? Reason I ask is
> wouldn't there be some image qualtiy gains for
> monochrome output by summing the 4 rgbg pixels
> into one and outputting a true 1.5 Mpixel mono signal
> (4 rgbg pixels per output pixels) instead of a
> interpolated color signal that is later desaturated?????
> 
> JCO
> 
>

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