By Topic

New Spatial Measure for Dispersed-Dot Halftoning Assuring Good Point Distribution in Any Density

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Ishizaka, K. ; Dept. of R&D, Fuji Xerox Co., Ltd., Nakai, Japan

As a core component of dispersed-dot halftoning, this paper focuses on the definition of new measures for giving or measuring good point distributions in a plane. By defining good point distributions from a purely geometric viewpoint of circle packing, it is shown that the energy defined by a certain strong convex function satisfies the necessary conditions for obtaining good point distributions in any point density by minimizing the energy. The energy with such the conditions are mathematically plain and there are no obscure parameters. The theory is also significantly motivated by a requirement of the adjustability to discrete spaces, and it is shown that the conditions actually work well also in the spaces. As an application, by using technically simple methods, dispersed-dot halftone masks are designed and goodness of point distributions of masks are estimated.

Published in:

Image Processing, IEEE Transactions on  (Volume:18 ,  Issue: 9 )