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公开(公告)号:US06985600B2
公开(公告)日:2006-01-10
申请号:US09811366
申请日:2001-03-15
申请人: Geoffrey B. Rhoads , Aruna B. Kumar , Trent J. Brundage , Brett T. Hannigan , Tony F. Rodriguez , J. Scott Carr
发明人: Geoffrey B. Rhoads , Aruna B. Kumar , Trent J. Brundage , Brett T. Hannigan , Tony F. Rodriguez , J. Scott Carr
IPC分类号: H04K1/00
CPC分类号: G06T7/001 , B29C45/1418 , B41J2/01 , B41J3/407 , B41J29/393 , B41M3/10 , B41M3/14 , B42D15/0093 , B42D25/29 , D21H21/40 , G03G15/5029 , G03G2215/00451 , G06Q10/10 , G06Q20/341 , G06Q20/40145 , G06Q30/02 , G06Q40/02 , G06T1/0021 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2207/30144 , G07C9/00079 , G07D7/0032 , G07D7/0034 , G07D7/004 , G07F7/08 , G07F7/086 , G07F7/1008 , G07F7/1016 , G07F7/12 , G07F17/16 , G07F17/26 , G10L19/018 , G11B20/00086 , G11B20/00094 , G11B20/00166 , G11B20/0021 , G11B20/00413 , G11B20/00884 , G11B20/00891 , H04B1/665 , H04N1/00002 , H04N1/00005 , H04N1/00037 , H04N1/00079 , H04N1/00092 , H04N1/00726 , H04N1/00968 , H04N1/2307 , H04N1/2323 , H04N1/2369 , H04N1/32122 , H04N1/32144 , H04N1/32208 , H04N1/32219 , H04N1/32251 , H04N1/32261 , H04N1/32288 , H04N1/32304 , H04N1/32309 , H04N1/32352 , H04N5/913 , H04N2005/91321 , H04N2005/91335 , H04N2201/3205 , H04N2201/3207 , H04N2201/3226 , H04N2201/3233 , H04N2201/3239 , H04N2201/3249 , H04N2201/327 , H04N2201/3271 , H04N2201/328
摘要: Stationery, or other printable media, is encoded with a digital watermark. The watermark is not conspicuous to a human observer of the media, yet conveys plural bits of auxiliary information when optically scanned and digitally processed. The watermark can be formed by ink-jet printing, or otherwise. The encoded information can be used for various purposes, including authenticating the document as an original, linking to associated on-line resources, and distinguishing seemingly-identical versions of the same document (document serialization).
摘要翻译: 文具或其他可印刷介质用数字水印进行编码。 水印对于媒体的人类观察者不是显眼的,而是在光学扫描和数字处理时传达多位辅助信息。 水印可以通过喷墨打印形成,或者以其他方式形成。 编码信息可以用于各种目的,包括将文档认证为原始文件,链接到相关联的在线资源,以及区分相同文档(文档序列化)的看似相同的版本。
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公开(公告)号:US06891959B2
公开(公告)日:2005-05-10
申请号:US10115444
申请日:2002-04-02
CPC分类号: H04N1/32309 , B42D25/00 , B42D25/333 , G06F17/30876 , G06K7/1417 , G06K7/1447 , G06K9/00442 , G06K19/06037 , G06K19/06046 , G06K19/14 , G06K19/18 , G06K2017/0064 , G06K2019/06253 , G06Q20/341 , G06Q20/40145 , G06T1/0028 , G06T1/0042 , G06T2201/0051 , G07C9/00079 , G07D7/0034 , G07D7/004 , G07F7/086 , G07F7/1008 , G07F17/16 , G10L19/018 , G11B20/00086 , G11B20/00884 , G11B20/00891 , H04N1/00005 , H04N1/00037 , H04N1/00079 , H04N1/32122 , H04N1/32149 , H04N1/32154 , H04N1/3216 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N1/32251 , H04N1/32288 , H04N1/32293 , H04N1/32352 , H04N19/467 , H04N21/23892 , H04N21/8358 , H04N2201/3205 , H04N2201/3207 , H04N2201/3225 , H04N2201/3226 , H04N2201/3233 , H04N2201/327 , H04N2201/3271 , H04N2201/3274 , H04N2201/3284
摘要: The present invention relates to steganographically hiding images and information. In a preferred embodiment, an image is hidden within a media signal. The media preferably includes a cyan (C) color plane, a magenta (M) color plane, a yellow (Y) color plane and a black (K) color plane. In an alternative embodiment, the media includes a spot color. The image is converted into a black color channel image and is then applied to the media's K channel. The black channel image is inverted and the inverted image is applied to the media's CMY (or spot) color planes.
摘要翻译: 本发明涉及隐写图像和信息。 在优选实施例中,图像被隐藏在媒体信号内。 介质优选地包括青色(C)彩色平面,品红色(M)色彩平面,黄色(Y)色彩平面和黑色(K)色彩平面。 在替代实施例中,介质包括专色。 将图像转换为黑色通道图像,然后将其应用于介质的K通道。 黑色通道图像被反转,并且将反转的图像应用于媒体的CMY(或点)色彩平面。
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