Image processor

Details Image processor Image processor

1984-12-17

1987-01-06

Birmiel, Howard A.

Image analysis

Histogram processing

For setting a threshold

382 49, 364715, 364900, G06F 928, G06F 1566, G06K 936

Patent

active

046352929

ABSTRACT:
This invention provides parallel partial image processing such as spatial convolution or non-linear neighbor arithmetic operation using an image processor which can easily be formed as a large-scale integrated circuit and can be used for various purposes. The image processor has an adder-subtractor, a multiplier, a reciprocal number memory in which the reciprocal of an address and the amount of shift are stored at each address, and a shift register. The processor therefore is capable of high-speed dividing operations by multiplying a multiplicant by the reciprocal of a multiplier and by shifting the result of the multiplication. Also, by switching the inputs to the adder-subtractor and to the multiplier rapidly under program control, it is possible to perform arbitrary addition, subtraction, multiplication and division on partial image data of m rows and n columns stored in a partial image memory of the image processor.

REFERENCES:
patent: 4174514 (1979-11-01), Sternberg
patent: 4384336 (1983-05-01), Frankle et al.
patent: 4395698 (1983-07-01), Sternberg et al.

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