Companion papers show why the CIE L*a*b* system of color coordinates is not optimal for use in desktop publishing (DTP) systems and how ATD remedies most of the problems of CIE L*a*b*. Since DTP deals primarily with the reproduction of images, DTP applications do not need to model human vision. They need only reproduce accurately in the image the reflective properties of the original. The eye d...

Las personas con los defectos en la percepción del color cometen más errores, toman tiempo reaccionar y necesitan estar cerca de objetos color, comparación que ven colores manera normal, esta deficiencia se denomina discromatopsia o comúnmente denominada Daltonismo honor a John Dalton (1794). Objetivo: Determinar prevalencia pilotos aviadores su relación factores laborales aeronáuticos. Métodos...

There are many definitions for the word color, which in Latin (colore), means impression that is produced on retina after diffusion of light by bodies. One first actions visual analysis object under within a dominant frequency called Hue (color name), together with sensation Brightness and Saturation. This paper reports studies carried out Scientific Initiation project PIF9919 between Sep/2021 ...

We have used the Farnsworth-Munsell 100-hue (FM 100) test and Mollon-Reffin (MR) test to evaluate the colour vision of 93 subjects, 30.4 ± 9.7 years old, who had red-green congenital colour vision deficiencies. All subjects lived in Belém (State of Pará, Brazil) and were selected by the State of Pará Traffic Department. Selection criteria comprised the absence of visual dysfunctions other than ...

A source of illumination with good color properties, daylight or electric, should reveal a full range of colors, should enable good color discrimination between objects of similar spectral reflectance, and should not distort colors. We presently have only one recognized measure of color rendering in the lighting industry, color rendering index (CRI), developed in the early 1960s. However, CRI s...

ABSTRACT For many years, archaeologists have relied on Munsell Soil Color Charts (MSCC) as tools for standardizing the recording of soil and sediment colors in field artifacts such pottery lab. Users identified multiple potential sources discrepancy results, differences inter-operator perception, light source, or moisture content samples. In recent researchers developed inexpensive digital meth...

Tsavorite’s color is not only affected by its internal components, but also external factors. This paper studies the neutral grey background and cutting on impact color. Under a 6504K fluorescent lamp, changing Munsell gray backgrounds from N9.5 to N3, we discovered that was best for tsavorite grading. In this paper, feasibility of taking photography studied. The regression models R2 between ph...