Patent ID: 7996681

Claim:
A method for performing electronic signature verification for an entity, said method comprising: ascertaining a count of color change points of a said first color change point set, said first color change point set including color change points identified on a set of lines of a first electronic image, said count of color change points of said first color change point set being less than a count of all pixels of said set of lines of said first electronic image, each color change point of said first color change point set being a pixel of a line of said first electronic image that is characterized by that a first portion of said line of said first electronic image is adjacent to a first side of said pixel of said line of said first electronic image, that a second portion of said line of said first electronic image is adjacent to a second side of said pixel of said line of said first electronic image, and that a color of said first portion of said line of said first electronic image is different from a color of said second portion of said line of said first electronic image, wherein said first electronic image is associated with said entity; identifying, using a scanning device, a second color change point set; determining, using a programmed computing device, a count of color change points of said second color change point set, said second color change point set including color change points identified on a set of lines of a second electronic image, said count of color change points of said second color change point set being less than a count of all pixels of said set of lines of said second electronic image, each color change point of said second color change point set being a pixel of a line of said second electronic image that is characterized by that a first portion of said line of said second electronic image is adjacent to a first side of said pixel of said line of said second electronic image, that a second portion of said line of said second electronic image is adjacent to a second side of said pixel of said line of said second electronic image, and that a color of said first portion of said line of said second electronic image is different from a color of said second portion of said line of said second electronic image; and comparing said second electronic image with said first electronic image using at least said count of color change points of said first color change point set and said count of color change points of said second color change point set.