Bar code enhancement system and method for vision scanners

Details Bar code enhancement system and method for vision scanners Bar code enhancement system and method for vision scanners

1992-09-02

1993-12-07

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

235462, 382 50, G06K 710

Patent

active

052685802

ABSTRACT:
A bar image enhancement system and method for vision scanners which divides an image of an article having a bar code label into groups of pixels, with each pixel having an intensity value, and which minimizes processing time by employing simple algebra. The system includes a camera for generating an analog signal representing the image. Processing circuitry converts the analog signal into a digital signal. A controller divides the image into groups, determines a contrast value for predetermined groups by subtracting the minimum intensity value from the maximum intensity of each group.

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patent: 5128528 (1992-07-01), Heninger

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