there is no doubt that colors are important factors in creating arts including poetry. the poets use them because of their visual beauties to show their hidden values. sometimes they go further – beyond the external features – ad use colors as symbols to express their own meaning. moreover, modern poet’s deep insight and vision are the main causes to change the colorful portrait to a bright won...

People with color-graphemic synesthesia experience vivid, reliable color upon viewing achromatic alphanumeric characters. Recent evidence indicates that synesthetic color experiences are as perceptually real as actual colors are for non-synesthetic observers. To investigate possible interactions between real and synesthetic colors, we tested two adult color-graphemic synesthetes on a pair of pe...

Identification of linear parameter-varying systems in an input-output setting is investigated, focusing on the case when the noise part of the data generating system is an additive colored noise. In the Box-Jenkins and output-error cases, it is shown that the currently available linear regression and instrumental variable methods from the literature are far from being optimal in terms of bias a...

Unlike the Metelli monochrome transparencies, when overlays and their backgrounds have chromatic content, the inferred surface colors may not always be physically realizable, and are in some sense "imaginary." In these cases, the inferred chromatic transmittance or reflectance of the overlay lies outside the RGB spectral boundaries. Using the classical Metelli configuration, we demonstrate this...

We establish a coloring theorem for successors of a singular cardinals, and use it prove that for any such cardinal μ, we have μ+ 9 [μ+]2 μ+ if and only if μ+ 9 [μ]θ for arbitrarily large θ < μ.

DNATagger is a web-based tool for coloring and editing DNA, RNA and protein sequences and alignments. It is dedicated to the visualization of protein coding sequences and also protein sequence alignments to facilitate the comprehension of evolutionary processes in sequence analysis. The distinctive feature of DNATagger is the use of codons as informative units for coloring DNA and RNA sequences...

Reproducing skin colors pleasingly is essential for photographic color reproduction. Moving skin colors toward their preferred skin color center improves the skin color preference. Two main factors to successfully enhance skin colors are: a method to detect skin colors effectively and a method to morph skin colors toward a preferred skin color region properly. This paper starts with introducing...

Karger, Motwani and Sudan presented a graph coloring algorithm based on semidefinite programming, which colors any k-colorable graph with maximum degree ∆ using Õ(∆1−2/k) colors. This algorithm leads to an algorithm for k-colorable graph using Õ(n1−3/(k+1)) colors. This improved Wigderson’s algorithm, which uses O(n1−1/(k−1)) colors, containing as a subroutine an algorithm using (∆ + 1) colors ...

Introduction An important part of color reproduction is the rendering of colors onto display devices [1], where the colors may be spot colors (e.g., tints) or the colors of a digitized photograph. Display devices, such as monitors and printers, are capable of showing only a subset of all perceivable colors; this subset is called the device color gamut. Colors subjected to a reproduction system ...

It is a classical result from graph theory that the edges of an l{regular bipartite graph can be colored using exactly l colors so that edges that share an endpoint are assigned diierent colors. In this paper we study two constrained versions of the bipartite edge coloring problem. { Some of the edges adjacent to a pair of opposite vertices of an l-regular bipartite graph are already colored wi...