halftone


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halftone

Art a tonal value midway between highlight and dark shading
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

halftone

[′haf‚tōn]
(graphic arts)
An engraving used in printing to reproduce photographs and drawings that contain continuous tones, that is, grays (middle tones or halftones) in addition to black and white; preparation involves photographing the artwork through a screen.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

halftone

(graphics)
The reproducion of greyscale images using dots of a single shade but varying size to simulate the different shades of grey.

Laser printers that cannot print different sized dots, halftones are produced by varying the numbers of dots in a given area.

This process is also used to produce a black and white version of a colour original using shades of grey in place of colours.

See also device independent bitmap.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
where [a.sub.t] is the predicted area coverage and [R.sub.[lambda],m] is the measured reflectance values of the halftone patch.
Spectral separation for multispectral image reproduction based on constrained optimization method
[14] proposed an image hashing scheme using the halftone mechanism, which can be applied in the field for image authentication and retrieval.
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donde h es la imagen halftone y tn es la matriz de pantalla que se genera usando la matriz de umbral aplicando (2).
Halftoning: revision y analisis
Digital Halftone originated in the 60th with the need to reproduce images for binary displays.
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The light that enters the substrate between the halftone dots can scatter laterally within substrate before returning to the surface as a part of reflected light.
Optical properties of printed transparent substrates
These wonderful publications exemplify how the halftone created "a new medium, in which photographs and text worked together to create a third meaning." (2) Now sharp, documentary-like pictures confirmed the text and showed California as a viable place to live, while always promoting its lyric inland landscapes and ruggedly beautiful coastline.
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Bahram Javidi have combined the 2-D halftone image and barcode by slightly shifting the positions of the arrangement halftone dots.
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The new IBM Infoprint 4100 family of printers offers a combination of 19.5-inch width, halftone image quality and high speed.
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Ricoh's VT6000 digital duplicator incorporates a newly developed thermal head with a highly sensitive master that delivers sharper, clearer lines, letters and halftone images at 600 dpi resolution.
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Not only does this model offer Mirror Print and Negative Print, it adds features like patent pending X-ACT (Xante's Accurate Calibration Technology), Halftone Calibration Technology, Enhanced Screening, and Densitometer Support.
XANTE DEBUTS ACCEL-A-WRITER 3-PRINTER SERIES

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