Browse Prior Art Database

FAST CHANGES IN A DISPLAYED FLOYD-HALFTONE

IP.com Disclosure Number: IPCOM000025291D
Original Publication Date: 1984-Jun-30
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal

Abstract

A preferred method to display a grey scale image on a one bit/pixel screen is to use a Floyd type two dimensional halftone. However, because the halftone is created by an error diffusion process, it is difficult to introduce in real time local changes in the display, as needed by airbrushing methods, without affecting the quality of the display. A method is described which minimizes the visible artifacts in the display when local changes are made.