1
Robert D Powell, Mark J Nitzberg: Method and system for digital image signatures. Corbis Corporation, Seed and Berry, February 24, 1998: US05721788 (534 worldwide citation)

A method and system for embedding signatures within visual images in both digital representation and print or film. A signature is inseparably embedded within the visible image, the signature persisting through image transforms that include resizing as well as conversion to print or film and back to ...


2
Powell Robert D, Nitzberg Mark J: Method and system for digital image signatures.. Interactive Home Systems, February 2, 1994: EP0581317-A2 (396 worldwide citation)

A method and system for embedding signatures within visual images in both digital representation and print or film. A signature is inseparably embedded within the visible image, the signature persisting through image transforms that include resizing as well as conversion to print or film and back to ...


3
POWELL ROBERT D, NITZBERG MARK J: METHODE ET SYSTEME POUR LA SIGNATURE NUMERIQUE DES IMAGES, METHOD AND SYSTEM FOR DIGITAL IMAGE SIGNATURES. DIGIMARC CORPORATION, DIGIMARC CORPORATION, BORDEN LADNER GERVAIS, September 8, 2009: CA2504316

A method and system for embedding signatures within visual images in both digital representation and print or film. A signature is inseparably embedded within the visible image, the signature persisting through image transforms that include resizing as well as conversion to print or film and back to ...


4
Powell Robert D, Nitzberg Mark J: Methode et systeme pour la signature numerique des images, Method and system for digital image signatures. Interactive Home Systems, Digimarc Corporation, OYEN WIGGS GREEN & MUTALA, August 23, 2005: CA2101673

A method and system for embedding signatures within visual images in both digital representation and print or film. A signature is inseparably embedded within the visible image, the signature persisting through image transforms that include resizing as well as conversion to print or film and back to ...