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Am 15.04.2012 17:55, schrieb Norbert Kern:
> "Florian Siegmund"<flo### [at] gmx at> wrote:
>
>> My eyes are longing for a little bit of non-linearity :)
>
> I think, it's the same impression, which lended me to use the "incorrect" value
> 2.2 for assumed_gamma - at least for outdoor scenes.
>
> In some art books or composition guides you can read that you should not use
> mid tones - either use dark or bright tones. For the same reasons you should use
> either deep or really pale colors. Never use bright or dark colors together with
> midtones for the main objects.
> Of course this is only true if you aren't a genius...
>
> So I decided to go for visually pleasent images, which are easier to generate
> with higher gamma values.
One problem with misusing gamma correction for artistic purposes is that
it inevitably shifts linearly (i.e. physically properly) computed color
hues towards the red, green or blue extreme, instead of increasing
saturation while preserving hue.
A better approach is to render the image with high bit depth, and use
post-processing to achieve brightness, contrast and hue adjustments in a
much more controlled manner.
Or, maybe even better yet, have built-in post-processing features to
achieve this; there is indeed the intention to provide some
functionality to that effect. Don't hold your breath though, as it won't
happen in 3.7.0.
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