Adaptation and the color statistics of natural images

MA Webster, JD Mollon - Vision research, 1997 - Elsevier
Color perception depends profoundly on adaptation processes that adjust sensitivity in
response to the prevailing pattern of stimulation. We examined how color sensitivity and …

Color and luminance information in natural scenes

CA Párraga, G Brelstaff, T Troscianko, IR Moorehead - JOSA A, 1998 - opg.optica.org
The spatial filtering applied by the human visual system appears to be low pass for
chromatic stimuli and band pass for luminance stimuli. Here we explore whether this …

Image quality evaluation for high dynamic range and wide color gamut applications using visual spatial processing of color differences

A Choudhury, R Wanat, J Pytlarz… - Color Research & …, 2021 - Wiley Online Library
High dynamic range (HDR) and wide color gamut imagery has an established video
ecosystem, spanning image capture to encoding and display. This drives the need for …

Band-limited contrast in natural images explains the detectability of changes in the amplitude spectra

DJ Tolhurst, Y Tadmor - Vision research, 1997 - Elsevier
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 …

Hyperspectral camera system: acquisition and analysis

GJ Brelstaff, A Párraga, T Troscianko… - Geographic Information …, 1995 - spiedigitallibrary.org
A low-cost, portable, video-camera system built by University of Bristol for the UK-DRA,
RARDE Fort Halstead, permits in-field acquisition of terrestrial hyper-spectral image sets …

The effect of contrast randomisation on the discrimination of changes in the slopes of the amplitude spectra of natural scenes

CA Párraga, DJ Tolhurst - Perception, 2000 - journals.sagepub.com
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 …

Detection of changes in the amplitude spectra of natural images is explained by a band-limited local-contrast model

DJ Tolhurst, Y Tadmor… - Human Vision and …, 1996 - spiedigitallibrary.org
The psychophysical task of discriminating small changes in the slopes of the amplitude
spectra of complex images (such as digitized photographs of natural scenes) has been used …

[PDF][PDF] Spatiochromatic Information Content of Natural Scenes

CA Párraga - 1995 - cat.uab.cat
The spatiochromatic characteristics of a dataset of 29 natural scenes (representative of the
natural terrain) were explored. The image capture was done using a video camera capable …

[引用][C] Color and luminance information in natural scenes

IR Moorehead - 1998