Method and apparatus for reading image

Details Method and apparatus for reading image Method and apparatus for reading image

1991-06-27

1992-06-09

Mancuso, Joseph

Image analysis

Histogram processing

For setting a threshold

358408, 358454, 382 62, G06K 936

Patent

active

051214458

ABSTRACT:
A method of reading image wherein an original image is read with two different sampling intervals, and undesirable signal components are removed from the read image signals. An apparatus for reading image wherein an original image is read with different sampling intervals by reading devices of two systems; outputs of the reading devices are A/D converted and subjected to an orthogonal function transformation; a converted signal of smaller absolute value is subjected to an inverse orthogonal function transformation to produce a read image signal.

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patent: 4941194 (1990-07-01), Shimura
White, "Reduced Moire-Effect Change Coupled Device"IBM Tech Disc. Bulletin, vol. 20, #9, Feb. 1978, pp. 3752-3755.

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