Image data processing apparatus having line memory

Details Image data processing apparatus having line memory Image data processing apparatus having line memory

1993-07-12

1997-07-08

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358444, 358443, 395250, H04N 140, H01J 100, G06F 1200

Patent

active

056467451

ABSTRACT:
An image data processing apparatus for performing processing using data corresponding to a plurality of lines which correspond to a plurality of scanning lines at the time of reading an image. For example, when processing is performed using data corresponding to three lines, that is, the present line, a line one ahead of the present line and a line two lines ahead of the present line, a line memory having a capacity of two lines is used. When the data corresponding to the line two lines ahead of the present line are read out from the memory, the data corresponding to the present line are written to storage locations from which the data have been read out. Consequently, it is possible to perform processing using data corresponding to three lines using a line memory having a capacity for two lines.

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Per-Erik-Denielsson, Computer Architectures for Pictorial Information Systems, Nov. 1981/pp. 53-67 (IEEE).

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