US 11,706,365 B2
Image processing apparatus that adds information indicating a copy is of an authentic document
Akitoshi Yamada, Kanagawa (JP); Hiroyasu Kunieda, Kanagawa (JP); and Yoichi Kashibuchi, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by Canon Kabushiki Kaisha, Tokyo (JP)
Filed on Feb. 16, 2022, as Appl. No. 17/672,993.
Claims priority of application No. 2021-024356 (JP), filed on Feb. 18, 2021.
Prior Publication US 2022/0263964 A1, Aug. 18, 2022
Int. Cl. H04N 1/00 (2006.01); G06K 19/06 (2006.01)
CPC H04N 1/00883 (2013.01) [G06K 19/06037 (2013.01); H04N 1/00846 (2013.01); H04N 1/00859 (2013.01); H04N 1/00867 (2013.01); H04N 1/00875 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An image processing apparatus having a copy function, the image processing apparatus comprising:
a memory that stores a program; and
a processor that executes the program to perform:
obtaining a scanned image by scanning a copy-target printed material;
extracting embedded information from the scanned image;
generating an image to be printed based on the scanned image; and
performing print processing using the image to be printed, wherein the generating comprises:
determining whether or not a document ID indicated by the extracted embedded information is valid;
removing the embedded information from the scanned image;
determining, by comparing pixel values of the scanned image from which the embedded information has been removed and pixel values of an image obtained by performing a rendering process for electronic document data associated with the document ID, whether or not the copy-target printed material has been falsified, wherein the electronic document data is managed along with information indicating that the contents thereof are authentic; and
generating, in a case where it is determined that the document ID is valid and the copy-target printed material has not been falsified, the image to be printed that is the scanned image to which information indicating being a copied material of an authentic document is added.