Premium
Appearance [Cesia]: Construction of scales by means of spinning disks
Author(s) -
Caivano Jose Luis
Publication year - 1994
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.5080190505
Subject(s) - specular reflection , reflection (computer programming) , notation , spinning , computer science , artificial intelligence , optics , mathematics , physics , arithmetic , engineering , mechanical engineering , programming language
The name cesia has been proposed for the aspect of appearance that deals with the sensations aroused by differences in the spatial distribution of light. In a previous article, a system ofcesias was presented. This included u notation system and a solid with three dimensions or variables in which the sensations were organized. The aim ofthis article is to report the development of scales of cesia, constructed with the aid ofrotatory disks holding percentages of materials producing the stimuling for the,five primary sensations of cesia. These primary sensations are: transparence, specular reflection, translucence, difuse reflection, and absorption [black]. Different geometries of observation were needed to evaluate the scales. Numerically, they were built using a power function belween the magnitudes of the sensations and the magnitudes of the stimuli. This research refutes the assumptions that the geometric attributes of appearance cannot be organized in a coordinate system and that synthetic stimuli cannot be produced for these attributes just as they are produced for color by the mixture of three lights. © 1994 John Wiley & Sons, Inc.