Patent ID: 6345124
Filing Date: 2002-02-05
Classification: G06T

Abstract:
An image processing method for processing a grayscale image comprises the steps of:dividing a grayscale image on an x-y plane into fine pixels and then receiving input image signals obtained by converting densities (D) of said pixels into multi-value digital signals, respectively; extracting a relation between an x-coordinate and a density (D) by setting a y-coordinate as being constant; comparing a change in a degree of variation in a density (D) for x-coordinates with a predefined threshold by: first performing a macro comparison by dividing the x-coordinates into predefined wide intervals; and then performing a micro comparison by subdividing each of the intervals in each of which the average relation between the x-coordinate and the density (D) can neither be obtained nor represented by a vector representation; obtaining and representing an average relation between the x-coordinate and the density (D) in each of a sequence of intervals, in which the change in the degree is less than the predefined threshold, by a vector; and outputting a vector represented signal.