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Am 10/18/2017 um 16:32 schrieb Kenneth:
> Ive <ive### [at] lilysoft org> wrote:
>> Am 10/18/2017 um 14:24 schrieb Kenneth:
>>>
>>> I can't say that I know exactly what I'm doing with this experiment-- ha!--
>>> but is 0.72941 the correct value for the gamma 2.2 swatch? (I assume it
>>> is, of course, but I wanted an expert's opinion.)
>>>
>> Calculate for yourself: 0.5 ^ (1 / 2.2) = ?
>
> 0.72941 ! (or almost)
> But I was somehow thinking (in a fuzzy way) that the gray swatch for gamma 2.2
> should perhaps measure as 0.5 instead-- with 0.5^2.2 resulting in .217, the
> 'gamma corrected' equivalent of 'half brightness' (0.5).
Well, the gamma corrected equivalent of linear 'half brightness' isn't
the power of 2.2 but the inverse, therefor 0.5 to the power of 1/2.2
-Ive
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