Control data array generation apparatus and method

Details Control data array generation apparatus and method Control data array generation apparatus and method

1991-02-05

1992-04-14

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 18, 358 80, G06K 936

Patent

active

051054698

ABSTRACT:
Apparatus for generating an array of control data, the array having a number of pixels each of which corresponds to a respective pixel in an image, the apparatus comprising a first store (100) for storing the image data; a second store (17) for storing the control data; and a processor which, for each control data array pixel generates and stores in the second store (17) a control value in accordance with a predetermined algorithm which defines the control value as a function of the corresponding image pixel color components and the corresponding color component(s) of the target colors, wherein the generated control values can be ordered on a scale of at least three value classes.

REFERENCES:
patent: 4402007 (1983-08-01), Yamada
patent: 4488245 (1984-12-01), Dalke et al.
patent: 4642683 (1987-02-01), Alkofer
patent: 4654720 (1987-03-01), Tozawa
patent: 4718089 (1988-01-01), Hayashi et al.
patent: 4878178 (1989-10-01), Takakura et al.

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