Patent ID: 8170362

Claim:
An edge-enhancement device for subjecting input image data to edge enhancement so as to generate output image data, said input image data forming a frame image having a plurality of pixels, said input image data containing luminance data, said device comprising: an edge-component generator that calculates an edge component of said input image data; a weighting processor that applies a weight according to the value of said luminance data of each of said pixels to said edge component of each pixel so as to generate a weighted edge component for each of said pixels; and an addition processor that adds said weighted edge component for each of said pixels to said input image data so as to generate said output image data, wherein said edge-component generator generates said edge component based on said luminance data, and said edge-component generator cuts a high-frequency component from said luminance data so as to generate high-cut data, and then subtracts said high-cut data from said luminance data so as to generate said edge component.