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Stochastic Screening – Been There, Done That?

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Since the early 90's and the introduction of desktop photo-imaging, error diffusion has continued to be used as the primary FM screening method for photo-inkjet printing. Modern error diffusion algorithms continue to deliver stunning photo quality but the nature of the algorithm makes it calculation intensive and inherently slow. Much work has been done over the years to try and improve the performance of error diffusion. As a result of this work and modern hardware configurations, contemporary algorithms operate at significantly increased speeds (and image rendering quality) when compared to similar developments from the late 80's and early to mid 90's. The fact is though that however many optimisations are applied to the algorithm, a simple point process system such as that employed with a threshold array will always exhibit better performance when compared with an equivalent error diffusion algorithm operating on the same image data.

Document Type: Research Article

Publication date: 2005-01-01

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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