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Automatic Calculation of Color Differences

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Abstract

Punched-card operated computing machines have been used to translate from C.I.E. space to the equal visual stimulus space of Adams. Differences in terms of Judd units are calculated by the machines as are the original colorimetric integrations. These methods have been used to process several thousand routine reductions of spectrophotometric data and their conversion to Adams space.

© 1953 Optical Society of America

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