Patent ID: 7206445
Filing Date: 2007-04-17
Classification: G06T

Abstract:
1. An image processing method comprising the steps of: receiving selection of a target image having a desired color-tone from a plurality of reference images, each including the same type of image, each having a different color-tone; receiving specification of an area in an image displayed; and changing a color-tone of a desired area including the specified area to the color-tone of the target image, wherein the color-tone of the desired area is changed so that a cumulative histogram of the color-tone of the target image and a cumulative histogram of the color-tone of the desired area become the same, wherein the cumulative histogram for the target image is represented by the function g(d′), where d′ represents a color density value for the target image, and the desired area is changed in accordance with the equation: where d represents a color density value for the desired area, and f(d) is a function representing the cumulative histogram for the desired area.