Patent ID: 6059729
Filing Date: 2000-05-09
Classification: G01S,G06T

Abstract:
An imaging system comprising:a memory for storing an image frame of pixel values;an image data processor programmed to perform the steps of:(a) forming a set of m pixel.times.n pixel blocks of pixel values from said image frame, where m and n are positive integers>3;(b) computing a contrast value for each of said blocks of pixel values;(c) for each block in said image frame having a contrast value greater than a predetermined threshold contrast value, performing a contrast-increasing transformation of the pixel values of said block to provide a respective edge-enhanced block of pixel values; and(d) substituting said edge-enhanced blocks for said respective blocks in said image frame having contrast values greater than said predetermined threshold contrast value to form an edge-enhanced image frame; anda display device comprising a multiplicity of pixels for displaying said edge-enhanced image frame.