Method and apparatus for recognizing paster portion of web

Details Method and apparatus for recognizing paster portion of web Method and apparatus for recognizing paster portion of web

1992-10-23

1995-08-08

Ro, Bentsu

Facsimile and static presentation processing

Facsimile

Facsimile measuring, testing, or calibrating

346 24, 346 28, 346136, 178 42, 358492, 358498, B41F 3318, B65H 2602

Patent

active

054404029

ABSTRACT:
According to a method and apparatus for recognizing a paster portion of a web, each pixel data of a printed matter serving as a reference is stored as reference image data. Each pixel data of a printed matter serving as a test target printed on the web is stored as test image data. The reference image data is compared with the test image data in units of pixels to detect defective pixels. The paster portion of the web is recognized on the basis of a generation pattern of the defective pixels.

REFERENCES:
patent: 3975590 (1976-08-01), Nelson
patent: 4054884 (1977-10-01), Nelson
Patent Abstracts of Japan, vol. 12, No. 394 (P-773)(3241) Oct. 20, 1988 & JP-A-63 134 938 (Canon).

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