Image processing system using run-length encoding of filtered da

Details Image processing system using run-length encoding of filtered da Image processing system using run-length encoding of filtered da

1991-05-30

1993-11-23

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358432, 358433, H04N 140

Patent

active

052649423

ABSTRACT:
With an image processing system, to-be-processed image data is run length coded. The pattern type of 1.times.M pixels of each row of the to-be-processed image data and a repetition count of the 1.times.M pixel pattern in the row direction are obtained. The run-length coded to-be-processed image data is logically filtered in accordance with the pattern type of the 1.times.M pixel pattern and its repetition count, thereby obtaining run-length coded processed image data.

REFERENCES:
patent: 4667251 (1987-05-01), Hasegawa
"A High Speed Raster To Vector Conversion Algorithm For Drawing Processing", H. Matsushima, et al: Mar. 13, 1988, Hitachi Central Research Laboratory, 2-229 no translation.
Patent Abstract of Japan-vol. 12, No. 16 (p-656) Jan. 19, 1988 & JP-A-62 172 485 (Nippon Telegr & Teleph Corp.) Jul. 29, 1987-*Abstract*.
Conference Proceedings IEEE Southeastcon '87, Tampa, Florida, Apr. 5-8, 1987, Publ. IEEE, New York, US-pp. 6-10, B. R. Pracht et al., `Adaptations of Run-Length Encoding for Image Data`.

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