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Gray Resolution Enhancement Anti-aliasing Technology (GRET) for High Speed Printing

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In order to improve the output image quality of binary text and graphics (even for binary information that are buried within a document which also has gray level information), a gray level resolution enhancement anti-aliasing method (GRET) that uses feature extraction and a rule-based decision matrix for edge enhancement (anti-aliasing) with multi-level (LED) output printing capability in a electrophotographic system is described. A pipelined architecture (with a conflict resolution priority-sorting scheme in the decision matrix) was used to enable all the decision operations to be performed at the same time (for efficient high-speed operation) and was implemented in an ASIC. Further, a scalable multiple chip architecture with overlapping pixels at the end of the image segments was created to enable enhancement operation for wider width and higher speed printing.
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Document Type: Research Article

Publication date: 2000-01-01

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  • 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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