Perceptual prominence of Hering's chromatic primaries.
Reported are results of an experiment involving perceptual assessment of very large color differences using samples representing approximate mean Hering opponent generic unique hues (guHs) based on subject selections, intermediate hues (iHs) using Munsell samples intermediate between guHs, and pairings of both guHs and iHs with a neutral gray. Sample pairs were assessed by 28 color normal subjects twice, with a gap of at least 24 hours between assessments. Results were calculated for individual subjects and the entire group. The hypothesis was that perceived chromatic differences of Hering's guHs are larger than those of iHs, and this was found to be statistically valid at the 99% confidence level based on a t-test. In addition, gray as a percept was found to have prominence comparable to that of generic unique hues.
Kuehni
Rolf G
RG
Polymer and Color Chemistry Program, Department of Textile Engineering, Chemistry, and Science, North Carolina State University, 2104 Research Drive, Raleigh, North Carolina 27695-8301, USA.
Shamey
Renzo
R
Mathews
Mara
M
Keene
Brandi
B
D000328:Adult; D001703:Biophysics / Q000379:methods; D003116:Color; D003118:Color Perception; D003119:Color Perception Tests / Q000379:methods; D005260:Female; D006801:Humans; D008027:Light; D008297:Male; D008875:Middle Aged; D015233:Models, Statistical; D008962:Models, Theoretical; D009482:Neurophysiology / Q000379:methods; D055095:Optics and Photonics; D011594:Psychometrics / Q000379:methods