ARTICLE NO. VC970363 Stochastic Screen Halftoning for Electronic Imaging Devices

to the development and use of stochastic screens for digital For numerous digital imaging applications, there is a need imaging applications. to maintain the highest quality perceived image, while utilizing a printer or display that can only achieve a limited number of 1.1. Ordered Dither output states. Digital halftoning is the approach that has been widely used to meet this demand. In this focus paper, we provide The history of halftoning technology can be dated back a short summary of halftone techniques, then we concentrate to the last century when physical screens and gauzes were on the newer and expanding roles of stochastic halftone used to generate halftone images. These techniques have screens—which are free of regular periodic structures and have been translated directly to digital halftoning. Some excelnumerous advantages in quality color rendering. We address lent comprehensive reviews have been published, including some theoretical issues, design and optimality issues, printer Ulichney [1], Roetling and Loce [2], Jones [3], and Kang compensation issues, and color quality issues that pertain to [4]. A brief orientation is given here. Ordered dither is the the development and use of stochastic screens for electronic natural digital solution, where a two-dimensional threshold imaging devices. © 1997 Academic Press array is designed and the halftoning process is accomplished by a simple pixelwise comparison of the gray scale 1