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Measurement of Mechanical and Optical Dot Gain of Ink Jet Printing and Its Application to Estimate the Reflectances of the Images

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In this paper, we propose a method to separately measure the ink dot transmittance on paper without the effect of optical dot gain. The single dot profiles on paper are measured by a monochrome digital camera attached on a microscope using underneath illumination in order to capture only ink dot distribution (mechanical dot gain). From single dot profile on glossy, matt and uncoated paper, the transmittances of the ink image are simulated using dot overlap model in the high resolution grid. The reflectance of ink jet images are estimated from the simulated ink image transmittance and the optical point spread function of paper using the image reflectance model. The result shows that the image transmittance and reflectance are well estimated if the paper behaves as a perfect diffuser.
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Document Type: Research Article

Publication date: 2002-01-01

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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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