1 - 10 of 19 articles
A survey has been made of the use and methods of Instrumental colour difference measurement in quality control of colour within Europe. Several colour differnce formulae are in use. The performances of the most used formulae, namely CIELAB, CMC, BFD, M&S, and Datacolor, are compared. The degree...
In the ten years since the last Inter‐Society Color Council conference on color discrimination considerable progress in industrial color‐difference evaluation has been made. The results of a questionnaire indicated that the efforts of the CIE to make formula usage more uniform has been...
We describe the design philosophy and image representation of a calibrated color image processing system. The design emphasizes the representation of the spectral functions necessary for device‐independent acquisition and display of color data. These basic design principles can be incorporated...
The color‐appearance models developed by R. W. G. Hunt (model H) and Y. Nayatoni and his collaborators (model N) are compared. The following color perceptions are analyzed: (1) colorfulness under illuminant C for NCS samples, (2) colorfulness change by changing illuminant C to illuminant A, (3)...
Rushtion and Baker have shown that the ratio of R to G cones varies between observers. We use this variability to ask if observers, say, who are rich in R‐cone input to the flicker (VΛ) channel, are also likely to be rich in R‐cone input to the long‐wavelength half of the y‐b channel. For the 8...
Previous studies have shown a distinction between short‐term and long‐term visual memory by measuring serial position curves for achromatic visual patterns. Three experiments are reported in which serial position curves were measured for homogeneous colored light patches displayed on a color...
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