Browse Prior Art Database

Diagnostics Algorithm for Image Scanner

IP.com Disclosure Number: IPCOM000053115D
Original Publication Date: 1981-Sep-01
Included in the Prior Art Database: 2005-Feb-12
Document File: 3 page(s) / 77K

Publishing Venue

IBM

Related People

Muraki, Y: AUTHOR

Abstract

This article describes the use of a prearranged test chart and an algorithm for performing a test of an image scanner in a facsimile terminal.

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Diagnostics Algorithm for Image Scanner

This article describes the use of a prearranged test chart and an algorithm for performing a test of an image scanner in a facsimile terminal.

This algorithm is a method to diagnose the image scanner automatically, scanning the prearranged test chart, analyzing the characteristics of the image, and judging whether the scanner device is good or bad synthetically in point of skew, distortion, and registration.

Scan the test chart shown in Figure 1 by m lines, and express the image in two-dimensional matrix D.

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