Obstructed-field-indicia-sensing device

Details Obstructed-field-indicia-sensing device Obstructed-field-indicia-sensing device

1988-02-16

1989-09-05

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

250548, 250560, 156361, G06K 920

Patent

active

048646318

ABSTRACT:
A method and apparatus for detecting predetermined register indicia on a moving web of material having an obstructing field of indicia positioned about the register indicia.

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