Patent ID: 8717623

Claim:
A method of performing color mis-registration correction in an image forming apparatus, comprising: detecting a plurality of color image data from print data; detecting edge information of each color image pixel for each of the color image data and generating a predetermined size window having a central pixel of each color image by checking window edge information regarding a location, direction and type according to a central pixel-surrounding pixel difference; comparing the detected edge information of the central pixel of each color image with each of surrounding pixels and performing color mis-registration correction when there are at least two color images of which edges are in contact with each other and edge directions are opposite to each other; when performing the color mis-registration correction, comparing a value of a pixel which constitutes each color image and setting a correction value; and when correction values for entire pixels of the each color image are set, performing color mis-registration correction for the plurality of color image data according to the set correction values.