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A comparison of constant stimuli and gray‐scale methods of color difference scaling
Author(s) -
Montag Ethan D.,
Wilber David C.
Publication year - 2003
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.10112
Subject(s) - hue , lightness , color difference , constant (computer programming) , artificial intelligence , color space , scaling , grayscale , mathematics , computer science , significant difference , scale (ratio) , pattern recognition (psychology) , computer vision , statistics , geometry , cartography , geography , pixel , enhanced data rates for gsm evolution , image (mathematics) , programming language
Two psychophysical techniques, the method of constant stimuli and the gray‐scale comparison method, were used to determine color tolerances for three different color centers in the hue, chroma, and lightness directions in CIELAB color space. The same color‐difference pairs were used as the stimuli in both experiments. Although the results followed the same trends, they were different for the two techniques. Based on comparison of the validity and precision of the results, as well as the ease of implementation, use, and analysis, the method of constant stimuli is the preferable method. © 2002 Wiley Periodicals, Inc. Col Res Appl, 28, 36–44, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.