Patent ID: 7783080
Filing Date: 2010-08-24
Classification: G06K,H04N

Abstract:
1. An image processing apparatus comprising: a change region judging unit that performs a judging process on a change region according to input image data, the judging process including a pixel area discriminated to represent additional writing information; a change region state judging unit that performs image analysis on an area judged by the change region judging unit to be a change region, and that judges presence/absence of additional writing information to be used to tamper by detecting if original information is in the vicinity of the additional writing information; a warning display control unit adapted to set a display mode according to a result of judgment to enable additional writing information, which is highly likely to tamper, to be discriminated; and a display unit that performs an output data displaying process according to the display mode set by the warning display control unit; wherein the change region state judging unit is configured to perform, when the image analysis is performed on the area judged by the change region judging unit to be a change region, an operation of analyzing the original information, which is present in at least one of the change region and a region in vicinity of the change region; and wherein the change region state judging unit is configured to perform comparison between an amount of the original information at the region in vicinity of the change region and a predetermined threshold value.