Introduction to Color - Brown University
Introduction to Color - Brown University
Introduction to Color - Brown University
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CS123 | INTRODUCTION TO COMPUTER GRAPHICS<br />
Subtractive Mixture<br />
Subtractive mixture occurs when<br />
mixing paints, dyes, inks, etc. that<br />
act as a filters between the viewer<br />
and the light source / reflective<br />
surface.<br />
In subtractive mixing, the light<br />
passed by two filters (or reflected<br />
by two mixed pigments) are<br />
wavelengths that are passed by<br />
the two filters<br />
On left: first filter passes 420 -<br />
520 nanometers (broad-band<br />
blue filter), while second passes<br />
480 - 660 nanometers (broadband<br />
yellow filter). Light that can<br />
pass through both is in 480 - 520<br />
nanometers, which appears green.<br />
blue<br />
green yellow red<br />
green<br />
Andries van Dam<br />
<strong>Color</strong> 28/57
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