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Browse Prior Art Database

COMPRESSION OF GREY DIGITAL IMAGES USING GREY SEPARATIONS

IP.com Disclosure Number: IPCOM000026250D
Original Publication Date: 1990-Dec-31
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 132K

Publishing Venue

Xerox Disclosure Journal

Abstract

Future Electronic and System Reprographic imaging products will be capable of rendering grey images, that is, images which specify a particular grey level at each spatial pixel site. Multi-bit per pixel images will typically fail to compress when processed with standard compression techniques like those specified by CCITT. Furthermore, because the size of these images (as measured by the total bits needed to describe the image) is substantially larger than the equivalent binary image, the processing bandwidth needed to compress an image gets much larger.