Skip to main content

Scanner-based Granularity Measurement on a Continuous Density Wedge

Buy Article:

$12.00 plus tax (Refund Policy)

Minimizing granularity is a key goal when designing digital photo printing media and hardware. A granularity metric that correlates well with visually perceived graininess requires measuring image noise over the entire range of image densities. We present a flatbed scanner based method of measuring granularity on a continuous (stepless) density wedge. Only one scan is necessary to provide granularity as a function of density, and hence visually weighted graininess. Digital filtering separates the spatial micro-density variation from the continuous change of density before calculating noise power spectra as a function of density with high density resolution, higher than obtainable from a step wedge target. The method has been developed into an efficient and powerful tool for characterizing and optimizing thermal print media and hardware.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: 01 January 2002

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.

  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more