| 发明名称 |
PRINTED MATTER, IMAGE PROCESSING APPARATUS, PRINTED MATTER AUTHENTICITY DETERMINATION APPARATUS, IMAGE PROCESSING METHOD, PRINTED MATTERAUTHENTICITY DETERMINATION METHOD, AND PROGRAM |
| 摘要 |
A printed matter is printed with a digital watermark overlapped in a pred etermined area with a line latent image. The line latent image is visualized by laying line filters with linear stripes on a clear film.
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| 申请公布号 |
CA2666730(A1) |
申请公布日期 |
2008.02.28 |
| 申请号 |
CA20072666730 |
申请日期 |
2007.08.21 |
| 申请人 |
TOPPAN PRINTING CO. |
发明人 |
OGAWA, MINORU;YOGO, YOSHIO;TAKAYAMA, KEISUKE;IWANAGA, HIROYUKI;FUJITA, AKIHIRO |
| 分类号 |
H04N1/387;B41M3/14;G06T1/00 |
主分类号 |
H04N1/387 |
| 代理机构 |
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代理人 |
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| 地址 |
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