Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Alastair M. Reed"'
Publikováno v:
Color and Imaging Conference. 27:326-330
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa8b84adf4a0b87a7f8756fea750e31c
https://doi.org/10.2352/issn.2169-2629.2019.27.59
https://doi.org/10.2352/issn.2169-2629.2019.27.59
Publikováno v:
Electronic Imaging. 29:130-136
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::babea3a8e704c72c458be4189c62d830
https://doi.org/10.2352/issn.2470-1173.2017.18.color-045
https://doi.org/10.2352/issn.2470-1173.2017.18.color-045
Publikováno v:
Media Watermarking, Security, and Forensics
In January 2014, Digimarc announced Digimarc® Barcode for the packaging industry to improve the check-out efficiency and customer experience for retailers. Digimarc Barcode is a machine readable code that carries the same information as a traditiona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb7416df3761e0b2986d947c8cce108a
https://doi.org/10.1117/12.2083134
https://doi.org/10.1117/12.2083134
Publikováno v:
SPIE Proceedings.
The present disclosure relate generally to color science and digital watermarking. A full color visibility model has been developed which has good correlation to subjective visibility tests for color patches degraded with a watermark. A relatively be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f986c1e055c10ac3483a6ba4ddf582db
https://doi.org/10.1117/12.2045408
https://doi.org/10.1117/12.2045408
Publikováno v:
Media Watermarking, Security, and Forensics
To watermark spot color packaging images one modulates available spot color inks to create a watermark signal. By perturbing different combinations of inks one can change the color direction of the watermark signal. In this paper we describe how to c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3cca3b8de2ea2407c3c90f491c949fb
https://doi.org/10.1117/12.2009879
https://doi.org/10.1117/12.2009879
Publikováno v:
SPIE Proceedings.
Most packaging is printed using spot colors to reduce cost, produce consistent colors, and achieve a wide color gamut on the package. Most watermarking techniques are designed to embed a watermark in cyan, magenta, yellow, and black for printed image
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e29fa69291651be55814b0674fe7210
https://doi.org/10.1117/12.2009488
https://doi.org/10.1117/12.2009488
Publikováno v:
Imaging and Printing in a Web 2.0 World III.
A watermark embed scheme has been developed to insert a watermark with the maximum signal strength for a user selectable visibility constraint. By altering the watermark strength and direction to meet a visibility constraint, the maximum watermark si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73e0c4dced96cc5b361b82764f0b32e9
https://doi.org/10.1117/12.915742
https://doi.org/10.1117/12.915742
Publikováno v:
Media Forensics and Security
The paper presents a watermark robustness model based on the mobile phone camera's spatial frequency response and watermark embedding parameters such as density and strength. A new watermark robustness metric based on spatial frequency response is de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddfbc69eea6b8abb2a9525b80ccada19
https://doi.org/10.1117/12.873227
https://doi.org/10.1117/12.873227
Publikováno v:
SPIE Proceedings.
Creating an imperceptible watermark which can be read by a broad range of cell phone cameras is a difficult problem. The problems are caused by the inherently low resolution and noise levels of typical cell phone cameras. The quality limitations of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7184f5e69cbb7850fc470be632361d94
https://doi.org/10.1117/12.839134
https://doi.org/10.1117/12.839134
Autor:
Osama M. Alattar, Alastair M. Reed
Publikováno v:
Security and Watermarking of Multimedia Contents
Watermarking of printed materials has usually focused on process inks of cyan, magenta, yellow and black (CMYK). In packaging, almost three out of four printed materials include spot colors. Spot colors are special premixed inks, which can be produce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::339336b5609d3e7f0eb6c93e4c505cde
https://doi.org/10.1117/12.477305
https://doi.org/10.1117/12.477305