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High Speed Page Matching

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In a print production system, the ability to associate each page with its original electronic form enables a number of important automation services, such as alternate-source page insertion, page/sheet routing and aspects of JDF-compliance. This work demonstrates the efficacy of a method capable of matching a scanned version of an incoming page to an original RIP, and was tested with a library of a thousand sample commercial pages. Frequency domain analysis suggests that low-resolution representations of pages can be used for matching purposes. This notion is corroborated by experimental results; a 98% correct matching is achieved for pages reduced to a bit-depth of 1-bit at only 1 dpi using a simple XOR method, and a perfect matching rate was achieved using pages represented at 16 dpi at a variety of bit depths using a sum of squared errors measurement. The method is implemented without placing any extra ink on each page.

Document Type: Research Article

Publication date: January 1, 2009

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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