Browse Prior Art Database

REDUCTION OF FALSE CONTOURING THROUGH PIXEL STRETCHING

IP.com Disclosure Number: IPCOM000026541D
Original Publication Date: 1992-Aug-31
Included in the Prior Art Database: 2004-Apr-06

Publishing Venue

Xerox Disclosure Journal

Abstract

A common imaging defect found in digital halftones is known as false contouring. It occurs when there are too few gray levels available in a given halftone thereby causing visible gray steps to appear as slowly varying shades of gray. This problem is especially severe in lower cost systems that image at lower scan resolutions.