The Encyclopedia Americana, Volume 7Grolier, 1994 - Encyclopedias and dictionaries |
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Page 311
To be successful , a color theory must account not only for the facts of normal color vision but also for all facts of abnormal ... PRIMARY COLORS A set of primary colors is one from which nearly all other colors may be derived or mixed ...
To be successful , a color theory must account not only for the facts of normal color vision but also for all facts of abnormal ... PRIMARY COLORS A set of primary colors is one from which nearly all other colors may be derived or mixed ...
Page 313
Colors may be classified according to different systems by use of this three - dimensional concept . Such systems will be varied ... The Ostwald system describes colors in terms of color content , white content , and black content .
Colors may be classified according to different systems by use of this three - dimensional concept . Such systems will be varied ... The Ostwald system describes colors in terms of color content , white content , and black content .
Page 315
Under experimental conditions the measured ratios for color constancy have been found to vary from zero to one , depending upon observers and viewing conditions . Color constancy breaks down for unfamiliar conditions of illumination ...
Under experimental conditions the measured ratios for color constancy have been found to vary from zero to one , depending upon observers and viewing conditions . Color constancy breaks down for unfamiliar conditions of illumination ...
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