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Le 17-10-15 à 09:21, Kenneth a écrit :
> Really interesting--and a lot of info crammed into a short time-frame! (I wish I
> could think and 'comprehend' that fast.)
>
> I actually never took notice of the 'dark blending' that occurs between colors,
> when blurring a colorful image in Photoshop (using its default gamma of 2.2).
> VERY surprising and enlightening.
>
> The 'perceived brightness of colors/grays' demonstration doesn't just apply to
> computer monitors. I recently bought a super-bright multi-color LED 'stage
> light' for use in the musical group I play in-- one of those lights with lots of
> individual LEDs. It has a dimming function (all the way from full-on to
> full-off, in 256 steps-- simple digital steps, probably.) The trouble is, most
> of the *perceived* brightness change happens at the lower dimmed-down end-- just
> like the video explains. Apparently, the designers of this light didn't take
> into account the perceived-brightness phenomenon; they should have applied
> something like a 2.2 power-law to the brightness steps.
>
>
Just another place where gamma considerations hit you unexpectedly...
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