Now showing items 1-10 of 2635
Black, white, and grays: are they colors, absence of color or the sum of all colors?
(John Wiley & Sons Inc., 2022-04)
Sometimes it is said that white is not a color but “the sum of all colors.” Surely this confusion comes from considering colors only those that appear in the spectrum. If these were the only colors, then magenta would ...
Color order systems, color mixtures, and the role of cesia
(John Wiley & Sons Inc., 2021-12)
Two questions are mainly discussed in this article: (a) how the shape of color order systems is related to different types of chromatic mixtures, and (b) how the opacity or transparency (an aspect of cesia) of the coloring ...
Three-coloring and list three-coloring of graphs without induced paths on seven vertices
In this paper we present a polynomial time algorithm that determines if an input graph containing no induced seven-vertex path is 3-colorable. This affirmatively answers a question posed by Randerath, Schiermeyer and Tewes ...
Armonia del colore, quarta parte: Altre nozioni d’armonia del colore
(Istituto del Colore, 2006-12)
In genere, seguendo qualche percorso tracciato in un solido di colore e stabilendo determinati intervalli per la selezione dei colori, intervalli che possono essere costanti o variabili secondo una progressione, si otterrà ...
Bounded coloring of co-comparability graphs and the pickup and delivery tour combination problem
The Double Traveling Salesman Problem with Multiple Stacks is a vehicle routing problem in which pickups and deliveries must be performed in two independent networks. The items are stored in stacks and repacking is not ...
New Windows based Color Morphological Operators for Biomedical Image Processing
(IOP Publishing, 2016-05)
Morphological image processing is well known as an efficient methodology for image processing and computer vision. With the wide use of color in many areas, the interest on the color perception and processing has been ...
Color measurement: comparison of colorimeter vs. computer vision system
The aim of this work was to compare two food color measurement techniques, the traditional tristimulus colorimeter and an image analysis system. In this sense a computer vision system was developed, consisting of a digital ...
Statistical properties of color matching functions
(M I T Press, 2021-08)
In trichromats, color vision entails the projection of an infinite-dimensional space (the one containing all possible electromagnetic power spectra) onto the three-dimensional space that modulates the activity of the three ...
Quality Measurement of Existing Color Metrics using Hexagonal Color Fields
(Universidad Autónoma del Estado de Morelos, 2009)
Male fairy-wrens produce and maintain vibrant breeding colors irrespective of individual quality
(Oxford University Press, 2021-01)
Conspicuous colors may signal individual quality if high-quality individuals produce more elaborate colors or have a greater capacity to invest in color maintenance. We investigate these hypotheses using repeated ...