Patent ID: 8094946

Claim:
An image processing system for assessing whether an image to be assessed is an original image, the image processing system comprising: a storage device storing a plurality of types of template form information; and at least one controller configured to: check a form type of the original image against the plurality of types of template form information stored in the storage device and determine a certain region, which is a partial region of the original image, corresponding to the template form information that matches the form information of the original image based on a code specifying the certain region, if the code is embedded in a template form corresponding to the form information of the original image; extract a characteristic amount of the determined certain region; store the extracted characteristic amount as a characteristic amount of the original image in the storage device; identify a form type of the image to be assessed against the plurality of types of template form information stored in the storage device; determine, in a case where the form type of the image to be assessed is identified from the plurality of types of template form information stored in the storage device, a location of a certain region in the image to be assessed based on the checked form type and extract a characteristic amount of the certain region corresponding to the determined location in the image to be assessed as a characteristic amount of the image to be assessed, wherein in a case where the form type of the image to be assessed is not identified from the plurality of types of template form information stored in the storage device, no characteristic amount of the certain region is extracted, and notifies that the assessment is impossible; discriminate, in a case where the form type of the image to be assessed is identified from the plurality of types of template form information stored in the storage device, whether the image to be assessed has been tampered by comparing the characteristic amount extracted from the certain region corresponding to the determined location in the image to be assessed with the characteristic amount of the original image stored in said storage device, the form type of the original image being the same as the form type of the image to be assessed; and notify the result of the discrimination.