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Browse Prior Art Database

AUTOMATIC COPY QUALITY ANALYZER

IP.com Disclosure Number: IPCOM000027327D
Original Publication Date: 1996-Apr-30
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 55K

Publishing Venue

Xerox Disclosure Journal

Abstract

Proposed is a copy quality analyzer which automatically measures geometric and cosmetic properties of a reproduced document. Results are then compared to the corresponding properties of an original document. The analyzer comprises a Personal Computer (PC), digital scanner, scanner interface, image capture memory, and a printer.

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XEROX DISCLOSURE JOURNAL

AUTOMATIC COPY QUALITY ANALYZER
Gerald F. Daloia
Peter W. Dusel
Joseph Grovanz
Brian Brown

Proposed Classification
U.S. C1.355/208 Int. C1. G03g 21/00

Proposed is a copy quality analyzer which automatically measures geometric and cosmetic properties of a reproduced document. Results are then compared to the corresponding properties of an original document. The analyzer comprises a Personal Computer (PC), digital scanner, scanner interface, image capture memory, and a printer.

A document image enters the analyzer via the scanner and is thereafter directed to the image capture memory by the scanner interface and PC. The PC searches the image capture memory for images stored therein and performs quantitative and qualitative algorithms on selected images.

The algorithms translate pixel data related to location and intensity into geometric data (i.e. magnification, registration, skew, and trim) and cosmetic data (i.e. line pair resolution, line growth, image density, color rendition, and solid area density). Color images are examined for color to color registration, color solid area densities, color step wedge densities, and color uniformity.

The PC memory and printer function as storage and output devices for the resulting data.

XEROX DISCLOSURE JOURNAL - Vol. 21, No. 2 MarcWApril 1996 139

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140 XEROX DISCLOSURE JOURNAL - Vol. 21, No. 2 MarcWApril 1996

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