Introduction to Color - Brown University

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CS123 | INTRODUCTION TO COMPUTER GRAPHICS Additive Mixture in Pointillist Art The Channel at Gravelines (1890) by Georges Seurat Discrete color daubs (left image) are said to mix additively at a distance. Pointillist technique Creates bright colors where mixing(overlaying) daubs darkens (subtractive) Sondheim’s “Sunday in the Park with George” is a fantastic modern musical exploring Seurat’s color use and theories about light, color, composition. Andries van Dam Color 30/57
CS123 | INTRODUCTION TO COMPUTER GRAPHICS Complementary Hues – Additive Mixture Complementary hues: Any hue will yield gray if additively mixed in correct proportion with it’s opposite hue on the color circle. Such hue pairs are complementary. Of particular importance are the pairs that contain four unique hues: red-green, blueyellow “complementary hues” These “unique” hues play a role in opponent color perception discussed later Note that only for perfect red and green do you get gray – CRT red and green both have yellow components and therefore sum to yellowish gray Andries van Dam Color 31/57
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Introduction to Color - Brown University

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