Patent ID: 8237992
Filing Date: 2012-08-07
Classification: H04N

Abstract:
1. An image processing apparatus comprising: a ground pattern detector which separates a ground region from other regions in image data input for obtaining a duplicate document of an original document containing the input image data, and analyzes the separated ground region, using a threshold value, to detect a ground pattern in the separated ground region, wherein the threshold value and the ground pattern are associated if the ground pattern is detected in the separated ground region; a region discriminator which detects the other regions; and an emphasis device which emphasizes the ground pattern detected by the ground pattern detector by altering image data of the ground pattern with an image processing parameter previously registered in correspondence to a ground threshold the associated threshold value of the ground pattern; wherein output image data for the duplicate document of the original document containing the input image data is formed based on the altered image data of the ground pattern and image data of the other regions detected by the region discriminator; and wherein ground pattern in the output image data is more noticeable than the ground pattern in the input image data because of the altering of the image data of the ground pattern.