Buch, Englisch, 415 Seiten, Format (B × H): 163 mm x 237 mm, Gewicht: 776 g
Buch, Englisch, 415 Seiten, Format (B × H): 163 mm x 237 mm, Gewicht: 776 g
ISBN: 978-0-262-21009-6
Verlag: Penguin Random House LLC
Along with text and graphics, images are fast becoming a generic data type for
general-purpose computer systems. This poses new problems for the systems designer, who must be able
to preprocess digital image data for a wide variety of video and hard copy displays. Digital
halftoning, the method by which the illusion of continuous-tone images are created through the
arrangement of binary picture elements, is a key component of any preprocessing.Digital Halftoning
addresses the problem of developing algorithms that best match the specific parameters of any target
display device. It is the first significant study of the process of producing quality images on
practical computer displays.To aid the systems designer, Ulichney devises the concept of blue noise
- which has many desirable properties for halftoning - and suggests efficient algorithms for its
use. He also introduces new metrics for analyzing the frequency content of periodic and aperiodic
patterns for both rectangular and hexagonal grids, and presents a unique "aspect ratio immunity"
argument in favor of hexagonal grids. Included are several carefully selected digitally-produced
images.Robert Ulichney is Principle Engineer with the Digital Equipment Corporation.
Ulichney
Digital Halftoning jetzt bestellen!
general-purpose computer systems. This poses new problems for the systems designer, who must be able
to preprocess digital image data for a wide variety of video and hard copy displays. Digital
halftoning, the method by which the illusion of continuous-tone images are created through the
arrangement of binary picture elements, is a key component of any preprocessing.Digital Halftoning
addresses the problem of developing algorithms that best match the specific parameters of any target
display device. It is the first significant study of the process of producing quality images on
practical computer displays.To aid the systems designer, Ulichney devises the concept of blue noise
- which has many desirable properties for halftoning - and suggests efficient algorithms for its
use. He also introduces new metrics for analyzing the frequency content of periodic and aperiodic
patterns for both rectangular and hexagonal grids, and presents a unique "aspect ratio immunity"
argument in favor of hexagonal grids. Included are several carefully selected digitally-produced
images.Robert Ulichney is Principle Engineer with the Digital Equipment Corporation.
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