Re: Usable Tones in Different Gammas
Re: Usable Tones in Different Gammas
- Subject: Re: Usable Tones in Different Gammas
- From: Rolf Gierling <email@hidden>
- Date: Sat, 09 Dec 2000 20:10:04 +0100
Robin Myers wrote:
>
>
The assumption that 1 Delta-E is the minimal perceivable step in L* is
>
incorrect. The human eye is capable of detecting a Delta-E difference of 0.5
>
or less in achromatic or nearly achromatic colors. What do your calculations
>
reveal when a Delta-E of 0.5 is used?
If I take a look at other weighting functions like CIE94 or CMC, and
only have
a change in lightness, they all end up with the standard deltaE of 1.
But maybe this is getting too scientistic for this list, and calculating for
a deltaE of 0.5 wont change anything on the relationship of gamma 2.2 being
better.
Rolf Gierling