Patent ID: 8243333
Filing Date: 2012-08-14
Classification: H04N

Abstract:
1. An image processing apparatus comprising: a front reading unit constructed to read image information on a front side of a document; a rear reading unit constructed to read image information on a rear side of the document; a resolution conversion unit constructed to convert the resolution of the image information on the rear side of the document read by the rear reading unit into a lower resolution; a first computing unit constructed to calculate a first background level uniquely obtained for the document from the image information on the front side read out by the front reading unit; a second computing unit constructed to calculate a second background level by adjusting the first background level for respective pixels of image information on the front side according to the image information on the rear side converted by the resolution conversion unit; and a background removal unit constructed to remove background on the front side of the document by using the second background level calculated by the second computing unit.