Using the geometric pattern-matching algorithm with the gray rectangle pattern described earlier yields information about the rectangle’s edges, not about the gray-scale levels in the rectangle. The ...

To make sense of what’s been scanned, says Adil Shafi, president of Brighton, Mich.-based Shafi Inc. (www.shafiinc.com), a software-solutions value-added supplier to Daimler Chrysler, Ford Motor Co.