Patent ID: 6381352
Filing Date: 2002-04-30
Classification: G06T,Y10S

Abstract:
An image processing method comprising the steps of:providing digital data representing grey scale values of a two-dimensional image of relevant subject matter and a substantially homogeneous background that at least partially borders on said relevant subject matter, wherein said grey scale values range from 0 to Z where 0 equals black and Z equals white; providing a threshold grey scale level between 0 and Z; comparing said threshold grey scale level to said digital data starting at outer edges of said two-dimensional image and moving inward therefrom to define an outer edge boundary of a first sub-image of said two-dimensional image at which said digital data first becomes greater than said threshold grey scale level, said first sub-image including said relevant subject matter and a reduced amount of said substantially homogeneous background; and defining a second sub-image from said first sub-image, said second sub-image substantially defining just said relevant subject matter.