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Factors Influencing the Sharpness of Digital Prints

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The pixel structure associated with digital printing systems imposes image quality limitations on the print, and these may be a serious impediment to achieving the highest quality levels associated with analog prints. Print resolution or sharpness is a leading component of image overall quality, and will clearly be directly influenced by the pixel dimensions. A metric for image sharpness is proposed which combines the pixel dimensions and the perceptual response of the visual system in an appropriate Fourier-based manner. The resulting digital sharpness scale (DSS) is thus similar in approach to the digital noise scale (DNS) previously described by the author. The digital sharpness scale enables print requirements to be established for digital photography in terms of format, total number of pixels and degree of enlargement, in order to achieve the comparative sharpness levels established for conventional analog photographic processes.
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Document Type: Research Article

Publication date: 1999-01-01

More about this publication?
  • 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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