Apparatus and method for processing and reproducing image inform

Details Apparatus and method for processing and reproducing image inform Apparatus and method for processing and reproducing image inform

1996-07-03

1999-01-05

Vu, Kim Yen

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358448, 382173, H04N 140, H04N 1387, G06K 934

Patent

active

058568778

ABSTRACT:
Layout analysis is used in operating a digital reproduction apparatus. The device automatically segments the digital image dot data corresponding to a document image to be reproduced, to determine layout elements of the document. This is shown on a display. An operator can now select a specific layout element, such as a text column, by indicating it, and instruct the image processing unit of the apparatus to process only that element. The processing operations include color printing, gradation changing, moving and enlargement/reduction.

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patent: 4985930 (1991-01-01), Takeda
patent: 5079625 (1992-01-01), Kitamura
"Block Segmentation of Document Images Using the X-Y Tree Approach", W. Lam et al., Tech. Rep., U. at Buffalo, Jun. 1988, pp. 1-23.
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"Document Image Understanding", Surgur N. Srihari, University of New York at Buffalo, 1986, pp. 87-96.
Image Transformation Encoding for Interactive Document Formatting IBM Tech. Discl. Bull., vol. 29 #8, Jan. 1987.
A Segmentation Method Based on Office Document Hierarchical Structure, Iwaki et al., NTT Elect. Commun. Labs, 1987, pp. 759-763.

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