RGB 16 bit as default when starting Krita

[Dmitry Kazakov]

On Wed, Jan 20, 2010 at 6:38 PM, Cyrille Berger <cberger at cberger.net> wrote:

> On Wednesday 20 January 2010, Dmitry Kazakov wrote:
> > 2) What are you speaking about, guys!? That is a completely theoretical
> > colorspace! It has nothing common with real life! There is hardly present
> a
> > monitor covering AdobeRGB, not speaking about this stuff.
> > Yes, this is really funny to scale a dalai lama picture, but it'll create
> > an enormous amount of problems to our users working with real-world
> images.
> It has nothing to do with display colorspace, but with the color space
> where
> the operation are computed. And if you had read that page you would notice
> the
> author is interested in actual real-world images, but the best way to
> demonstrate problems in image processing is to use artificially crafted
> images.
> So what are the "enormous amount of problems to our users" ?


scRGB is linear. Most.. well, all the labs use 2.2 or 1.6. Most of the
monitors in the web are calibrated to 1.6-2.2. And not every software pays
any attention to embedded color-profiles, e.g. browsers.

This means that you must convert an image to sRGB before publishing in web.
Are you going to inform every user about that?

Second. During this conversion you will loose most of the colors of your
image. You remember that 80% of scRGB colors are imaginary, don't you? You
have to use special techniques to workaround non-gamut-colors. Thanks to
these "techniques" you image may become darker/whiter. Are you still going
to explain this to every user who opened Krita for the first time?

Third. You must use 16 bit or float for scRGB. Do you think degrading
performance twice worth an ability to work with 80% imaginary colors?

-- 
Dmitry Kazakov
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