Patent ID: 6493115
Filing Date: 2002-12-10
Classification: H04N

Abstract:
An image processing apparatus comprising:reading means for reading an image of a document on which an invisible mark containing an infrared-ray absorbing material is imprinted, and outputting a visible image signal representing a visible image and an invisible image signal representing an invisible image; mark detection means for detecting said invisible mark on the document on the basis of the invisible image signal output by said reading means; recognition means for recognizing an area surrounded by the mark detected by said mark detection means and outputting area data; synchronizing means for synchronizing the area data output by said recognition means with the visible image signal output by said reading means; display means for performing displaying so that the area surrounded by the mark can be discriminated, based on the output of said synchronizing means; and process means for processing the visible image read by said reading means in accordance with the area recognized by said recognition means.