Method for controlling compact dot growth

Details Method for controlling compact dot growth Method for controlling compact dot growth

1995-11-30

1997-08-19

Wong, Peter S.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358456, 382209, G06K 1500, G06K 100

Patent

active

056593996

ABSTRACT:
The present invention is a method and apparatus for detecting the presence of image regions requiring compact dot growth control and controlling the dot growth of such regions when rendered on a printing system. The invention operates to recognize those pixels within a bitmap image that are appropriate for alteration, using a template-based approach, and then alters the exposure pulse of identified pixels during imaging so as to assure a more stable output by a xerographic development system.

REFERENCES:
patent: 4544264 (1985-10-01), Bassetti et al.
patent: 4847641 (1989-07-01), Tung
patent: 5029108 (1991-07-01), Lung
patent: 5047955 (1991-09-01), Shope et al.
patent: 5408329 (1995-04-01), Mailloux et al.
Behind Hewlett-Packard's Patent on Resolution Enhancement Technology; J. Randolph Sanders et al.; 1990; pp. 1-60.
"A Survey of Electronic Techniques for Pictorial Image Reproduction"; IEEE Transactions on Communications; vol. COM-29, No. 12, Dec. 1981.
"Mathematical Morphology in Image Processing"; Edward R. Dougherty; Rochester Institute of Technology; 1992; pp. 43-90.
"Advance Printing of Paper Summaries"; SPSE's 41st Annual Conference; May 22-26, 1988 pp. 342-347.

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