Figure 3.

Each panel shows a psychometric function based on the trial-by-trial decisions of the model observer given the actual stimulus pairs of unequally blurred stimuli presented to the human observers. The key above each panel indicates whether the model was based on the high, low or high-scaled passbands and whether the stimuli differed in area (size) or density (dense). The high-scaled condition scaled the high-frequency energy by the amount of blur in the stimulus, independently calculated by the MIRAGE algorithm. For further details see the text.