Re: [UFRaw-Devel] per-camera setting?

[Pascal de B. <pmj...@pc...>]

On Mon, Apr 6, 2009 at 1:20 AM, Robert Krawitz <rl...@al...> wrote:
>   Date: Sun, 5 Apr 2009 23:57:33 +0200
>   From: Pascal de Bruijn <pmj...@pc...>
>
>   On Sun, Apr 5, 2009 at 6:04 PM, Hadmut Danisch <ha...@da...> wrote:
>   > Hi,
>   >
>   > just   a proposal for an improvement:
>
>   This lets get a few things clear. UFRaw's "Color Matrix" is in fact
>   a very small camera specific color profile. This color profile was
>   made by Adobe. They are usually of good quality.
>
>   User made (downloadable) profile are of greatly varying quality.
>
>   Quality in the sense of color profiles is pretty weird to talk
>   about in the first place. Accuracy and Prettyness, and likeness to
>   camera JPEGs are often three different and conflicting goals.
>
> The quality may well be good in the midtones, but near the boundaries
> (particularly highlights), a simple linear application of the matrix
> generates some real uglies (see my infamous
> ftp://66.92.65.9/pub/crw_3888.crw sunset shot).
>
> Changing the gamma or linearity won't help here.

I just tried it, using gamma 0.35 and linearity 0.08 makes a _HUGE_
difference. No ugly color banding anymore!

Regards,
Pascal de Bruijn