Patent ID: 11968343
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 21:
22. The image processing apparatus according to claim 19, wherein the obtaining unit obtains the image data obtained by reading a print original that includes a first region and a second region as the image data, the first region read in the reading to have a higher density than the second region, the second region read in the reading to have a lower density than the first region, the print original being an original in which the first information is embedded in the print image by embedding a plurality of patterns with directivities in the first region while switching the patterns and, in which, a pattern that includes fewer pixels printed adjacent to one another than the first region is embedded in the second region, and
the extracting unit extracts the first information from the first region.