We provide a theoretical analysis of some empirical facts about the second order
spatiochromatic structure of natural images in color. In particular, we show that two simple …

Spatial filters that mimic receptive fields of visual cortex neurons provide an efficient
representation of achromatic image structure, but the extension of this idea to chromatic …

The human visual system has the ability to perceive approximately constant surface colors
despite changes in the retinal input that are induced by changes in illumination. Based on …

Abstract We analyze whether Independant Component Analysis (ICA) is an appropriate tool
for estimating spatial information in spatio-chromatic mosaiced color images. In previous …

This editorial provides an overview of the current issue of Vision Research. Papers in the
first half of this special issue address point statistics of the visual image, characterizing the …

Many aspects of visual coding have been successfully predicted by starting from the
statistics of natural scenes and then asking how the stimulus could be efficiently …

We consider how to interpret, filter, and cross-correlate complex-value color (hue and
saturation) images by using a single discrete Fourier transform: the spatiochromatic discrete …

The distribution of colors in natural images can vary widely across different environments or
within the same environment over time. We have examined how color distributions at a …

We study the problem of color constancy–inferring from an image the spectrum of the
illumination and the reflectance spectra of all the depicted surfaces. This estimation problem …

Independent Component Analysis (ICA) of images of natural scenes has been shown to
generate basis functions, or filters, which resemble spatial [Bell & Sejnowski (1997). Vision …