We propose a user-centric methodology for displaying digital color documents, that optimizes color representations in an observer specific and adaptive fashion. We apply our framework to situations involving viewers with common dichromatic color vision deficiencies, who face challenges in perceiving information presented in color images and graphics designed for color normal individuals. For si...

Color quantization considers the problem of mapping the continuous color space into a limited number of discrete colors or representing a full color digital image using fewer colors. Usually, the set of available colors for the output image is called a color palette. The selection of an optimal color palette and the optimal mapping of each pixel of the image to a color from the palette form the...

The avian plumage color gamut is the complete range of plumage colors, as seen by birds themselves. We used a tetrahedral avian color stimulus space to estimate the avian plumage color gamut from a taxonomically diverse sample of 965 plumage patches from 111 avian species. Our sample represented all known types of plumage coloration mechanisms. The diversity of avian plumage colors occupies onl...

1 Introduction Synesthesia, which literally means a mixing of the senses, takes on various forms, but the most common is the experience of color when viewing achromatic alphanumeric characters (Day 2005; Rich and Mattingley 2002). Called`color-graphemic synesthesia', this condition has attracted great interest recently, in part because of its potential implications for understanding neural plas...