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Multispectral Image Archiving of Watermarks in Historical Papers

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Multispectral imaging is a technique used today in many quality control applications in industry or the cultural heritage field. Determining the origin of documents is an important task of historians. For this task not only is the visible text relevant but also further information about the physical paper document, such as watermarks. Today historic documents are mostly scanned using reflected visible light but such scans does not provide information about watermarks. For this, historians have to examine the original paper document. But the watermark may not be visible even with the original document due to heavy interference with overlaying ink. In this paper the digitization of historic papers using different spectral wavelength bands is discussed in general and the use of infrared bands for the detection of watermarks in particular. The details of a watermark detection system are presented and a concept for combining visual and infrared image digitization is shown.
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Document Type: Research Article

Publication date: January 1, 2011

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  • The IS&T (digital) Archiving Conference offers a unique opportunity for imaging scientists and those working in the cultural heritage community (curators, archivists, librarians, photographers etc) from around the world to come together to discuss the most pressing issues related to the digital preservation and stewardship of hardcopy, and other cultural heritage documents and objects. Authors come from museums, archives, libraries, government institutions, industry and academia. Cutting edge topics related to multispectral and 3D imaging, as well as best practices for workflow, sharing, standards, and asset/collection management and dissemination are explored in papers presented at this annual, international event.

    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 pertuity. Copyright restrictions on papers vary; see individual paper for details.

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