Abstract
Using the method of predicting the discrimination probability of visual stimuli and the objects of actual scenes, an analysis is carried out of the threshold luminance difference ΔL<sub>min</sub>, proposed by Narisada as an estimate of visual processability in the range of adaptation luminance -1.0 ≤ log L<sub>a</sub> ≤ 3.0. The numerical values of contrast K<sub>min</sub>=ΔL<sub>min</sub>/L<sub>a</sub> substantially differ from the threshold contrasts obtained in Blackwell's experiments and those calculated by us for the same conditions of visual perception. The results of the analysis give a basis for assuming that the proposed value of ΔL<sub>min</sub> needs to be refined. It is shown that the probability of discriminating the stimulus (the object) can be used as an estimate of the visual processability.
© 2007 Optical Society of America
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription