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Calibration Color Patch Reduction and Halftone Level Selection for Electrophotography

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This article presents an approach to reduce the number of color patches printed during a calibration for electrophotography. During a calibration, primary color patches at different halftone levels are printed on a belt and are measured using on-board sensors. Regression models are used to predict primary color tone values on output media from these on-board sensor measurements. Then, the necessary adjustments using tone correction or other control variables are applied to compensate for tone deviation. Laying down and measuring color patches consumes time and toner. It is desired to reduce the number of calibration color patches while ensuring regression model accuracy. A procedure for color patch reduction is proposed in this work. In this procedure, a minimal set of color patches and their associated halftone levels are identified using variable selection algorithms. The results demonstrate that the minimal set contains 47.1% fewer calibration color patches than a full set, while the regression model accuracy of the minimal set is effectively the same as that of the full set.
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Keywords: Electrophotographic process; color patch reduction; halftone level selection

Document Type: Research Article

Publication date: 2013-03-01

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  • The Journal of Imaging Science and Technology (JIST) is dedicated to the advancement of imaging science knowledge, the practical applications of such knowledge, and how imaging science relates to other fields of study. The pages of this journal are open to reports of new theoretical or experimental results, and to comprehensive reviews. Only original manuscripts that have not been previously published, nor currently submitted for publication elsewhere, should be submitted.

    IS&T's JIST-first publication option allows authors wishing to present their work at conferences, but have a journal citation for their paper, to submit a paper to JIST that follows the same rigorous peer-review vetting and publication process as traditional JIST articles, but with the benefit of a condensed time-to-publication time frame and guaranteed conference presentation slot.

    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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