Reply to Myers RE: Vision Range
Reply to Myers RE: Vision Range
- Subject: Reply to Myers RE: Vision Range
- From: email@hidden
- Date: Mon, 26 Nov 2001 03:44:07 EST
According to a Xerox/Tektronics training CD on Color Theory
"If you have normal color vision, you can detect about 150 steps within the
visible spectrum, from violet to red. Factoring in possible changes in
brightness and saturation, color scientist calculate that you can
discriminate over 7 million different colors. So why do Tektronix color
printers generate a palette of 16.7 million shades? Is the excess color
wasted? The answer of course is 'no.' The enormous number of colors allows
the smooth shading of one color into another, which in turn fosters the
lifelike realism possible with high-end color printers."
There are no references offered on the CD, and I assume that they refer to
Xerox Color Scientists... and if it weren't for Steve's visit to Xerox PARC
years ago, we might not be having a ColorSync discussion... So, I would
believe these Xerox guys.