Method and circuit arrangement for video-rapid determination of

Details Method and circuit arrangement for video-rapid determination of Method and circuit arrangement for video-rapid determination of

1984-06-13

1986-06-24

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358107, 382 52, H04N 718

Patent

active

045970092

ABSTRACT:
The invention is directed to methods and circuit arrangements for video-rapid determination of the median of an evaluation window. In a first step, the gray values of one column of the evaluation window are transferred in accordance with their relative rank to window line memories; in a second step, selection circuit arrangements select gray values in parallel from all window line memories according to their rank relative to one another. Only these selected gray values are then processed in subsequent steps by processing circuit arrangements.

REFERENCES:
patent: 2494441 (1950-01-01), Hiller
patent: 4205341 (1980-05-01), Mitsuya
patent: 4468704 (1984-08-01), Stoffel

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