Patent ID: 6188787
Filing Date: 2001-02-13
Classification: G03G,G07D,H04N

Abstract:
An image recognition method for recognizing an object mark in scanned object image data which is on an original nonreproducible document, comprising the steps of:scanning an image to obtain object image data which includes said object mark;detecting a presence of a first color in said scanned object image data which is identical to an object color of said object mark on said original nonreproducible document by analyzing three color components, said first color being detected when all of said three color components are respectively identical to a corresponding predetermined color density;detecting a presence of a second color in said scanned object image data which is a different color from an object color of said object mark on said original nonreproducible document by analyzing three color components, said second color being detected when all of said three color components are respectively within a corresponding predetermined color density range, each predetermined color density range representing a range of predictable color alterations of said object color; andproviding an output signal if either said first or second colors are detected in said scanned object image data, wherein said detecting steps are performed in parallel.