Image thresholding system

Details Image thresholding system Image thresholding system

1981-09-21

1984-02-07

Curtis, Marshall M.

Image analysis

Histogram processing

For setting a threshold

340728, 340747, 340793, 340801, G09G 100

Patent

active

044307489

ABSTRACT:
An image thresholding system employing a ROM look up table to make threshold decisions. A plurality of shift registers are used to convert a digital pixel input which includes the pixel to be processed to an address for use in addressing the ROM look up table to provide a thresholded value for the pixel being processed. The output of the ROM look up table is utilized, together with other pixels from the pixel input, to address a second ROM look up table to provide a further refined threshold decision.

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