[Scribus] How do I do color correction
avox
avox
Wed Mar 7 00:22:22 CET 2007
Hal V. Engel wrote:
>
> ... It is easy and inexpensive to create custom profiles for your
> scanners
> and cameras. For flat bed scanners all you need is an ($15 + shipping)
> IT8.7/2 target from Wolf Faust, LProf or ArgyllCMS (Lprof is easier to use
> and both are open source and free), and a few minutes to scan the IT8/7.2
> target and process it into a high quality custom profile. Both pieces of
> software will create world class input device profiles. If correctly
> created
> these custom profiles will definitely be better than using sRGB for your
> scanner. As an example raw processed images from my DSLR have a gamut
> that
> is almost twice as large as sRGB at almost 70% of CIELab. There is no way
> that I could use sRGB for this device and not either loose (clip) or
> misrepresent almost half of the devices available gamut. I should also
> point
> out that the IT8.7/2 target itself actually has a gamut that is larger
> than
> the sRGB gamut and most scanners will be able to capture the full gamut of
> the target.
>
What I dont understand is why it's not possible to print out some test page,
scan that with your calibrated scanner and create a custom profile from
that?
/Andreas
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