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Authenticate Digital Prints with Glossmark™ Images

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Glossmark™ technology is a digital watermarking process that embeds a visually striking gloss image within a high quality color print without the need of a special paper or toner. It utilizes the angular dependence of image gloss to create a differential-gloss image through the modulation of halftone structures. Both the primary image and the embedded Glossmark™ image can be distinctively viewed from different perspectives with little interference. The strong directional nature of the gloss and the subtle halftone modulation process make Glossmark™ images very difficult to detect by a scanner and even more challenging to reproduce through scanning and printing. Its distinct visual effect which is highly desirable for security printing makes it stand out among various halftone modulation technologies. Its differential gloss appearance which originates from the image surface roughness modulation offers better protection against counterfeiting than technologies that utilize only “plain” halftone modulations. Well-designed quality Glossmark™ images are optical variable devices (OVD's) ideally suitable for document authentications. Its digital implementation provides a capability to embed variable data as digital watermarks into individual prints quickly and economically.
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Document Type: Research Article

Publication date: 2004-01-01

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  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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