Image processing apparatus

Details Image processing apparatus Image processing apparatus

1988-06-13

1990-01-09

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358432, H04N 1419

Patent

active

048931870

ABSTRACT:
An image processing apparatus comprises an input image memory for storing input image data obtained by coding original image data with run length codes for a first direction, a reading circuit for sequentially reading from the input image memory the data of every two lines which are adjacent to each other in a second direction orthogonal to the first direction, an exclusive OR processing circuit for carrying out an exclusive OR operation on the data of the every two lines read by the reading circuit to detect second directional endpoint positions of the original image data without decoding the input image data into the original image data, and a second directional processing circuit for carrying out a predetermined image process for the second direction according to the first directional endpoint positions detected by the exclusive OR processing circuit.

REFERENCES:
patent: 4257069 (1981-03-01), Murayama
patent: 4571634 (1986-02-01), Caneschi
patent: 4658430 (1987-04-01), Anderson et al.
patent: 4757552 (1988-07-01), Asano

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