BAR CODE ENHANCEMENT SYSTEM AND METHOD FOR VISION SCANNERS

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.