Here is the ICC profile and the raw: http://greenbeemedia.com/stuff/
John P Santos
Digital Media Consultant
*Green Bee Media*
greenbeemedia.com
facebook.com/greenbeemedia.ca
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On Sun, Aug 4, 2013 at 7:09 AM, Torsten Bronger <
[email protected]> wrote:
> Hallöchen!
>
> John P Santos writes:
>
> > Thanks! I found an ICC profile for the Canon T3i, named 6000
> > (which I guess would be for the 600D). That did the trick. I've
> > been taking a lot of pictures of the sky, and all the subtlety of
> > the colour has been restored! So much better. Unfortunately the
> > curve needed for "unbreak input profile" is still very difficult
> > to get EXACTLY, so I'm still slightly stumped, because although
> > the colour is great, the tones are all strange. Still this is
> > leaps and bounds ahead of where I was before.
>
> If the ICC is a cLUT, you may experience the same issue like me in
> <http://www.darktable.org/redmine/issues/9510>. This bug made
> (incorrectly) saturated blue colours brighter for me. How big is
> the ICC file?
>
> Also, the white balance is different for your "enhanced CM" and
> "ICC" images. For a decent comparison, this should be made equal.
>
> And then, DT corrects deep blues (for a reason that I've never
> really understood) after the colour matrix/ICC profile.
>
> A lot of uncertainties, I know, but this input colour thing simply
> is difficult to measure exactly, and there is a lot of snake oil and
> false information on the Web.
>
> > Here are examples of the exports of the pictures
> > http://greenbeemedia.com/stuff/dt-color-experiments/ including a
> > scaled down version of the embedded preview. If you want a copy
> > of the raw to take a look, that's fine. [...]
>
> It would be nice if you could upload this ICC file and the RAW
> somewhere.
>
> > Any idea where I can find proper settings for "unbreak" as well as
> > a proper "base curve" to use?
>
> As for the base curve, I experiment with a totally-out-of-focus
> image of a black/white object (i.e., no saturated colours) with a
> lot of dynamic range. This way, I may be able to reconstruct the
> base curve of the camera's manufacturer. But I haven't yet come to
> a conclusion here.
>
> Tschö,
> Torsten.
>
> --
> Torsten Bronger Jabber ID: [email protected]
> or http://bronger-jmp.appspot.com
>
>
>
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