applyGamma_video() [3/3]

fl::u8 fl::applyGamma_video	(	fl::u8	brightness,
		float	gamma )

Definition at line 1057 of file colorutils.cpp.

                                                    {
    float orig;
    float adj;
    orig = (float)(brightness) / (255.0);
    adj = pow(orig, gamma) * (255.0);
    fl::u8 result = (fl::u8)(adj);
    if ((brightness > 0) && (result == 0)) {
        result = 1; // never gamma-adjust a positive number down to zero
    }
    return result;
}

References brightness().

Referenced by applyGamma_video(), applyGamma_video(), napplyGamma_video(), napplyGamma_video(), napplyGamma_video(), and napplyGamma_video().

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