Re: camera raw and input profiles
Re: camera raw and input profiles
- Subject: Re: camera raw and input profiles
- From: bruce fraser <email@hidden>
- Date: Fri, 25 Mar 2005 10:11:32 -0800
At 12:58 PM -0500 3/25/05, Roger Breton wrote:
So the raw image is actually a grayscale image. OK. It's one grayscale but
isn't the Bayer pattern actually interleaved in that grayscale image, as far
as you know?
No, there's a CFAPattern metadata tag that defines the Color Filter
Array (which is often a Bayer pattern but is sometimes something else
entirely, possibly using more than three primaries). A blue-filtered
pixel will produce a lower luminosity than a red-filtered one that
received the same photon count, so the effect of the CFA is certainly
imposed on the grayscale pixels, but the pixels themselves are
just grayscale pixels.
Bruce
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