Patent ID: 7151858
Filing Date: 2006-12-19
Classification: G06T

Abstract:
1. An apparatus for correcting the edge of an input image, the apparatus comprising: an edge detector which outputs an image signal by performing a multi-stage Haar Wavelet transform on the input image, wherein the output image signal comprises edge data of the input image, the edge detector comprising: a gain detector which detects a gain for correcting the edge of the input image by normalizing the edge data at a position to be corrected, wherein the edge data is obtained from the image signal output from the edge detector; a pixel value detector for detecting a corrected pixel value regarding the edge data at a position to be corrected by performing an operation on the edge data to be corrected, at least one pixel adjacent to the edge data, and the gain; and an image signal generator for generating an image whose edge is formed based on the corrected pixels.