Results 201 to 210 of about 1,094,287 (239)

Stereo disparity improves color constancy [PDF]

open access: yesVision Research, 2002
Binocular disparity is an aspect of natural viewing. This research investigates whether disparity affects surface color perception. Achromatic settings were obtained and compared for two stereograms of a scene with specular reflections, one stereogram ...
Shevell, Steven K, Yang, Joong Nam
exaly   +2 more sources

Evolving color constancy

Pattern Recognition Letters, 2006
The ability to compute color constant descriptors of objects in view irrespective of the light illuminating the scene is called color constancy. We have used genetic programming to evolve an algorithm for color constancy. The algorithm runs on a grid of processing elements.
openaire   +1 more source

Bayesian color constancy revisited

2008 IEEE Conference on Computer Vision and Pattern Recognition, 2008
Computational color constancy is the task of estimating the true reflectances of visible surfaces in an image. In this paper we follow a line of research that assumes uniform illumination of a scene, and that the principal step in estimating reflectances is the estimation of the scene illuminant.
Gehler, P.   +4 more
openaire   +3 more sources

GPU Color Constancy

Journal of Graphics Tools, 2008
A sensor located inside a digital camera is only able to measure the light that is reflected by an object. The reflected light varies with the spectral power distribution of the illuminant. Hence, images taken with a digital camera may show a strong color cast if an incorrect white balance setting has been chosen.
openaire   +2 more sources

Color perception and the limits of color constancy

Journal of Mathematical Biology, 1979
A summary of colorimetry is given and the limits of color constancy mechanism under changing illuminations are discussed.
exaly   +4 more sources

Color Constancy

Advances in Color Vision, 1992
We have investigated the extent of color constancy in complex (Mondrian) and simple (center-surround) displays. Our critical finding is that the extent of lightness and color constancy in such displays depend heavily on the instructions given to subjects. We also find, not surprisingly, that adaptation has a powerful effect on color constancy. Stimulus
Adam Reeves, Lawrence E Arend
openaire   +1 more source

Digital color imaging with color constancy

Systems and Computers in Japan, 2002
Abstract“Color constancy” which gives almost constant color perception of an object under illumination of various colors, is an important characteristic in identifying objects by our color vision. This paper proposes an algorithm to add color constancy to a digital camera, which reconstructs an image under arbitrary light conditions by using a pair of ...
Keisuke Takebe   +3 more
openaire   +2 more sources

Quasi-Unsupervised Color Constancy

2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2019
We present here a method for computational color constancy in which a deep convolutional neural network is trained to detect achromatic pixels in color images after they have been converted to grayscale. The method does not require any information about the illuminant in the scene and relies on the weak assumption, fulfilled by almost all images ...
Bianco S., Cusano C.
openaire   +1 more source

Classification-Based Color Constancy

2008
In this work, we investigate how illuminant estimation techniques can be improved using indoor/outdoor classification. The illuminant estimation algorithms considered are derived from the framework recently proposed by Van de Weijer and Gevers.
Simone Bianco 0001   +3 more
openaire   +2 more sources

Computational color constancy

3rd European Workshop on Visual Information Processing, 2011
BIANCO, SIMONE, SCHETTINI, RAIMONDO
openaire   +1 more source

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