Image processing method and apparatus therefor

Details Image processing method and apparatus therefor Image processing method and apparatus therefor

1989-05-17

1991-09-24

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 27, 382 49, G06K 900

Patent

active

050520466

ABSTRACT:
An image processing apparatus that processes image data consecutively in the column and row directions has an image memory, a reading unit, a temporary memory and an operative unit. The image memory stores image data consecutively in column and row directions on a pixel unit basis. The reading unit reads from the image memory a series of pixels within one column at one row and at least one pixel adjacent to the one row in the column direction. The temporary memory sequentially stores a number of groups of pixels read from the reading unit as is necessary for image processing. The operation unit reads the values of an objective pixel and pixels necessary for a neighborhood operation of the objective pixel from the temporary memory, and subjects the values to a neighborhood operation to determine the output value of the objective pixel.

REFERENCES:
patent: 4434502 (1984-02-01), Arakawa et al.
IEEE Computer, Nov., 1981, pp. 53-67, "Computer Architectures for Pictorial Inf. Systems", Per Erik Danielsson et al.

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