IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Regular Section
Halftoning with Weighted Centroidal Voronoi Tessellations
Kohei INOUEKiichi URAHAMA
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2012 Volume E95.A Issue 6 Pages 1103-1105

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Abstract

We propose a method for halftoning grayscale images by drawing weighted centroidal Voronoi tessellations (WCVTs) with black lines on white image planes. Based on the fact that CVT approaches a uniform hexagonal lattice asymptotically, we derive a relationship of darkness between input grayscale images and the corresponding halftone images. Then the derived relationship is used for adjusting the contrast of the halftone images. Experimental results show that the generated halftone images can reproduce the original tone in the input images faithfully.

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© 2012 The Institute of Electronics, Information and Communication Engineers
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