| US 7,571,323 B2 | ||
| Image processor, method thereof, computer program, and computer readable storage medium | ||
| Keiichi Iwamura, Ohta-ku (Japan); and Kitahiro Kaneda, Ohta-ku (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Jan. 16, 2004, as Appl. No. 10/759,364. | ||
| Claims priority of application No. 2003-013737 (JP), filed on Jan. 22, 2003. | ||
| Prior Publication US 2004/0148507 A1, Jul. 29, 2004 | ||
| Int. Cl. H04L 9/00 (2006.01); G06K 9/00 (2006.01) | ||
| U.S. Cl. 713—176 | 8 Claims |
| 1. An image processor comprising:
a scanning unit for reading a recording medium, the recording medium having first patterned image data printed thereon and
image data printed thereon, the image data including embedded information, the first patterned image data including a latent
image unperceivable by human eyes, the latent image being formed more clearly on a copy-destination recording medium when
information recorded on the recording medium is copied by a copying machine;
a separating unit for separating the read image data input by the scanning unit to obtain the image data including the embedded
information; and
an outputting unit for controlling output of combined image data produced by combining second patterned image data with the
image data including the embedded information, the second patterned image data including a latent image unperceivable by human
eyes, the latent image being formed more clearly on the copy-destination recording medium when information recorded on the
recording medium is copied by the copying machine.
|