Psychophysical thresholds were measured for discriminating small changes in spatial
features of naturalistic scenes (morph sequences), for foveal and peripheral vision, and …

The psychophysical task of discriminating changes in the slopes of the amplitude spectra of
complex images has been used in the past to test whether the human visual system might …

A number of studies have investigated whether human visual performance can be related to
the general form of the amplitude spectra (ie, 1/f α) of natural scenes. Here, it is argued that …

In natural scenes and other broadband images, spatial variations in luminance occur at a
range of scales or frequencies. It is generally agreed that the visual image is initially …

It has been suggested (Tadmor and Tolhurst, 1994 Vision Research 34 541–554) that the
psychophysical task of discriminating changes in the slope of the amplitude spectrum of a …

We conducted suprathreshold discrimination experiments to compare how natural-scene
information is processed in central and peripheral vision (16° eccentricity). Observers' …

The adult visual system is optimally tuned to process the spatial properties of natural scenes,
which is demonstrated by sensitivity to changes in the 1/fα amplitude spectrum. It is also well …

It has been suggested that the second-order statistics of different natural images are all
remarkably similar and that neurones and channels in the visual system may exploit this …

Natural visual scenes are rich in information, and any neural system analysing them must
piece together the many messages from large arrays of diverse feature detectors. It is known …

The contrast sensitivity function is routinely measured in the laboratory with sine-wave
gratings presented on homogenous gray backgrounds; natural images are instead …