Patent ID: 8164809
Filing Date: 2012-04-24
Classification: H04N

Abstract:
1. An image processing apparatus, comprising: a comparing and detecting section for comparing two image data, which respectively obtained by nearly simultaneously reading both sides of a document, on a pixel to pixel basis and detecting a pixel, on which offset arises, from the two image data based on a comparison result obtained by comparing the two image data; and a correcting section for correcting at least any one of brightness, hue and chroma of the detected pixel based on information including brightness and hue of the detected pixel, wherein the comparing and detecting section calculates a first difference value of brightness and a second difference value of hue between pixels respectively corresponding to each other in both sides of the document, as the comparison result, when comparing the two image data on a pixel to pixel basis, and detects a pixel of one side or both sides of the document as a pixel, on which off-set arises, if the calculated first or second difference value is equal to or more than a predetermined threshold value.