Suprathreshold hue color-difference tolerances were measured at four color centers using CRT-generated stimuli. The tolerances, defined using CIELAB, were measured using two different methods of presentation. In the Absolute Experiment, the stimuli were presented at luminance levels that matched those of the previous object-color experiments, so that the CRT stimuli were nearly metameric to the originals. In the Relative Experiment, the white point of the monitor was defined as L* = 100 at a corresponding chromaticity to the object-color viewing environment, but at a lower luminance level. The results from these two experiments followed the same general trends; however, they were significantly different from each other for three of the four color centers. The same trends were seen in the object-color results, although neither CRT experimental condition produced tolerances that were conclusively more similar to the object-color results than the other. The feasibility of the use of the CRT has been demonstrated. It is likely that parametric effects of stimulus presentation are the cause of the differences in results among the different experiments, as opposed to differences in the mode of appearance. These parametric effects can be studied more quickly and economically using a computer-controlled CRT display.

Publication Date



Copyright © 1999 by The Association for Research in Vision and Ophthalmology. All Rights Reserved. With the exception of material authored by government employees working in an official capacity, copyright for all material published in Journal of Vision is assigned to the Association for Research in Vision and Ophthalmology (ARVO). Users may view, reproduce or store copies of articles comprising the journal provided that the articles are used only for their personal, non-commercial use. Uses beyond that allowed by the "Fair Use" limitations (sections 107 and 108) of the U.S. Copyright law require permission which must be obtained in writing from the Journal of Vision Editorial Office (see contact information below). Any uses and or copies of Journal of Vision articles, either in whole or in part, must include the customary bibliographic citation, including author attribution, date, article title, journal name, DOI and/or URL, and copyright notice. This research was supported by the Munsell Color Science Laboratory Industrial Color Difference Consortium. The current members are 3M, Datacolor International, Detroit Color Council, DuPont Automotive, Dystar, Bayer Corporation, Inter-Society Color Council, Macbeth, Society of Plastics Engineers, PPG, and Xerox Corporation. The authors wish to thank Lisa Reniff and Dave Wyble for their assistance in running the experiment, the observers who volunteered their time, and Tsuneo Kusunoki of the Sony Corporation for arranging the modification of a production display and its donation. Thanks also to Rolf G. Kuehni for critiquing the article manuscript. The authors also thank LMT Lichtmesstechnik GmbH, Berlin; Fuji Photo Film Co., Ltd.; Sony; and Macbeth for the donation of the equipment used in this research to the Munsell Color Science Laboratory and DuPont for the production of the samples used in this study.ISSN:1534-7362 Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

Document Type


Department, Program, or Center

Chester F. Carlson Center for Imaging Science (COS)


RIT – Main Campus