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Gel ink pens are currently produced by many stationery companies. In 1991 Sakura acquired the Dutch company Royal Talens, and in 1997 the Dutch pencil maker Bruynzeel . [1] The North-American division of the company, "Sakura Color Products of America, Inc." was established in Hayward, California in 1986.
EnChroma are a brand of color corrective lenses designed to address the symptoms of red–green color blindness.Studies have shown that these lenses can alter the appearance of colors, but they do not restore normal color vision, [1] and generally agree that they do not allow the wearer to see "new" colors. [2]
YCbCr is sometimes abbreviated to YCC.Typically the terms Y′CbCr, YCbCr, YPbPr and YUV are used interchangeably, leading to some confusion. The main difference is that YPbPr is used with analog images and YCbCr with digital images, leading to different scaling values for U max and V max (in YCbCr both are ) when converting to/from YUV.
Chroma: A Queer Literary Journal, a UK-based journal; Chroma, a short story collection by Frederick Barthelme; Chroma, a book by Derek Jarman; Chroma, a character in The Phantom Tollbooth by Norton Juster
Colorfulness, chroma and saturation are attributes of perceived color relating to chromatic intensity. As defined formally by the International Commission on Illumination (CIE) they respectively describe three different aspects of chromatic intensity, but the terms are often used loosely and interchangeably in contexts where these aspects are ...
Avicenna (980–1037), seeing color as of vital importance both in diagnosis and in treatment, discussed chromotherapy in The Canon of Medicine. He wrote that "color is an observable symptom of disease" and also developed a chart that related color to the temperature and physical condition of the body. His view was that red moved the blood ...
Chromolithography is a method for making multi-colour prints.This type of colour printing stemmed from the process of lithography, [1] and includes all types of lithography that are printed in colour.
The user selects the color corresponding to one of the numbers then uses it to fill in a delineated section of the canvas, in a manner similar to a coloring book. The kits were invented, developed and marketed in 1950 by Max S. Klein, an engineer and owner of the Palmer Paint Company in Detroit, Michigan, United States, and Dan Robbins, a ...