Re: [hatari-devel] Gamma correction

[Miro Kropáček <miro.kropacek@xxxxxxxxx>]

On Sun, Dec 13, 2015 at 7:42 PM, David Savinkoff <dsavnkff@xxxxxxxxx> wrote:

Gamma correction is critical when rotating, warping or scaling
a picture (especially smaller). If a picture is simply scaled up
by an integer factor, gamma correction is not used on any pixels
(re-sampling causes aliasing, thus the need for gamma correction).

Where this definition comes from? As far as I know, the following is the common definition and it does apply to all emulators, regardless of scaling:

It defines the relationship between a pixel's numerical value and its actual luminance. Without gamma, shades captured by digital cameras wouldn't appear as they did to our eyes (on a standard monitor).

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MiKRO / Mystic Bytes
http://mikro.atari.org