Title:
DATA HIDING FOR SPOT COLORS IN PRODUCT PACKAGING
Document Type and Number:
WIPO Patent Application WO/2016/025631
Kind Code:
A8
Abstract:
The present disclosure relates generally to signal processing such as data encoding and data hiding for product packaging and other printed objects. One embodiment embeds an information signal in a spot color for product packaging. The spot color is screened, and overprinted with process color tint. The tint is modulated prior to overprinting with optimized signal tweaks. The optimization can include consideration of a detector spectral dependency (e.g., red and/or green illumination). Other embodiments and combinations are described in the subject patent document.
Inventors:
REED ALASTAIR M (US)
FILLER TOMAS (US)
FALKENSTERN KRISTYN R (US)
BAI YANG (US)
FILLER TOMAS (US)
FALKENSTERN KRISTYN R (US)
BAI YANG (US)
Application Number:
PCT/US2015/044904
Publication Date:
March 02, 2017
Filing Date:
August 12, 2015
Export Citation:
Assignee:
DIGIMARC CORP (US)
International Classes:
G06T1/00; H04N1/32
Attorney, Agent or Firm:
STEWART, Steven, W. (US)
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