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Volume: 29 | Article ID: art00018
Selecting Best Ink Color for Sparse Watermark
  DOI :  10.2352/ISSN.2470-1173.2017.18.COLOR-045  Published OnlineJanuary 2017

A method of watermarking print ready image data used in the commercial packaging industry is described. A significant proportion of packages are printed using spot colors, therefore various tools to support watermarking spot colors are required. Previously we have described a method which assumes that the package design contains process colors CMY as well as the spot colors to insert a chrominance watermark. Some package designs do not include the process colors CMY or are being printed with a print process which allows limited overprinting, and require a different approach. For simplicity of press control, a binary watermarking system was developed. The binary watermark is inserted in a single ink color with values of 0 and 100%. For the binary watermark to be used in a package design, a method is required which evaluates the ink colors used in a package design and ranks them for use with a modern barcode scanner at the Point of Sale (POS) station.

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Alastair Reed, Kristyn Falkenstern, Edward Hattenberger, "Selecting Best Ink Color for Sparse Watermarkin Proc. IS&T Int’l. Symp. on Electronic Imaging: Color Imaging XXII: Displaying, Processing, Hardcopy, and Applications,  2017,  pp 130 - 136,

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Copyright © Society for Imaging Science and Technology 2017
Electronic Imaging
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