%0 Journal Article
%A Sanz, Iván
%A Chevalier Del Río, Margarita
%A Lakshminarayanan, Vasudevan
%T Perception of high-contrast blurred edges
%D 2001
%@ 1047-3203
%U https://hdl.handle.net/20.500.14352/59063
%X Observer sensitivity to edge blur has been examined by experimental measurements of threshold blur as a function of contrast. An extension of previous results from Watt and Morgan for high-contrast blur edges is discussed and analyzed. We propose a psychophysical test based on a two-alternative forced choice test. The results found for three adult observers show a comparable behavior. A tendency for the blur threshold to reach an average value as contrast increases is mainly discussed. These results complement previous ones from other authors for which low- and intermediate-contrast ranges were analyzed. The observed behavior suggests a need to improve algorithms for image quality assessment, extending the actual range of contrast values to high-contrast ones.
%~