Patent ID: 6628808
Filing Date: 2003-09-30
Classification: G06K,G06Q

Abstract:
An image verification apparatus for verifying images, comprising:an illumination source; an image scanner, scanning an image and converting said image illuminated by said illumination source into an electronically readable format; a storage device for storing said electronically readable scanned image in an array of discrete elements of varying intensity having first and second boundaries and a principal portion therebetween; a programmable template capable of storing a predetermined image in a separate portion of said storage device; and image recognition logic for verifying said scanned imsge against said predetermined image, wherein said image recognition logic logically verifies said scanned image by analyzing said array of discrete elements of varying intensity against said predetermined image, and wherein said image recognition logic provides intensity normalization on each element prior to performing said analysis of said scanned image, the intensity normalization of each element being performed according to the following formula: c=B+r-bw-bÃ—(W-B)â€ƒwhere: c is a normalized element intensity value; r is the raw value; B is a black output value; W is a white output value; b is a black input value; and w is a white input value.