Publication

The Moire phenomenon in color separation

Isaac Amidror
1991
Conference Papers

Abstract

Undesired moire patterns may appear in color separation due to several different reasons. One of the most important ones is the interference between the halftone screens of the different primary colors, due to an improper selection or alignment of their frequencies and orientations. The author demystifies this moire phenomenon, by giving a clear, rather informal but illustrative explanation of the problem, and by pointing out some possible ways to avoid, or at least to minimize, its adverse effects on color separation

Official source

https://infoscience.epfl.ch/entities/publication/fcfdfc52-8907-4845-84cf-42a7ebdb3280

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Isaac Amidror
1991
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/fcfdfc52-8907-4845-84cf-42a7ebdb3280

About this result

Related concepts (29)

Color printing

Color printing or colour printing is the reproduction of an image or text in color (as opposed to simpler black and white or monochrome printing). Any natural scene or color photograph can be optically and physiologically dissected into three primary colors, red, green and blue, roughly equal amounts of which give rise to the perception of white, and different proportions of which give rise to the visual sensations of all other colors. The additive combination of any two primary colors in roughly equal proportion gives rise to the perception of a secondary color.

Color photography

Color photography is photography that uses media capable of capturing and reproducing colors. By contrast, black-and-white or gray-monochrome photography records only a single channel of luminance (brightness) and uses media capable only of showing shades of gray. In color photography, electronic sensors or light-sensitive chemicals record color information at the time of exposure. This is usually done by analyzing the spectrum of colors into three channels of information, one dominated by red, another by green and the third by blue, in imitation of the way the normal human eye senses color.

Primary color

A set of primary colors or primary colours (see spelling differences) consists of colorants or colored lights that can be mixed in varying amounts to produce a gamut of colors. This is the essential method used to create the perception of a broad range of colors in, e.g., electronic displays, color printing, and paintings. Perceptions associated with a given combination of primary colors can be predicted by an appropriate mixing model (e.g., additive, subtractive) that reflects the physics of how light interacts with physical media, and ultimately the retina.