APPARATUS AND METHOD FOR CORRECTING EDGE

摘要

PROBLEM TO BE SOLVED: To provide an apparatus and method for correcting an edge that outputs a vivid image by detecting an edge of an image and correcting luminance and chrominance values of the detected edge.

SOLUTION: The apparatus includes a luminance corrector obtaining a corrected luminance value of a center pixel in a first window of a predetermined size, the first window located at the edge of the input image, by using weights assigned according to a luminance difference between the center pixel and each of a plurality of adjacent pixels in the first window or a predetermined difference of variance value representing the degree of uniformity in the luminance between the center pixel and each of the plurality of adjacent pixels; and a chrominance corrector correcting a chrominance value of the edge using weights assigned according to a luminance difference between a center pixel and a plurality of adjacent pixels to the center pixel in a second window of a predetermined size based on the corrected luminance value of the edge.

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