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Volume: 45 | Article ID: art00014
Properties of Improved Dot Diffusion for Image Halftoning
  DOI :  10.2352/J.ImagingSci.Technol.2001.45.3.art00014  Published OnlineMay 2001

The dot diffusion method for digital halftoning has the advantage of parallelism unlike the error diffusion method. The method was improved by optimization of the so-called class matrix so that the resulting halftones are comparable to the error diffused halftones. First, 8 × 8 class matrices were used for dot diffusion method. However, there is a problem with this size of class matrix: enhancement of images is necessary before halftoning. It was found later that if the size of the class matrix was increased to 16 × 16, then there is no need for the enhancement step. In this article, we will review the dot diffusion. This will be followed by a discussion on special cases of dot diffusion. Then, we will show how the optimization is done to get the class matrices.

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Murat Mese, P. P. Vaidyanathan, "Properties of Improved Dot Diffusion for Image Halftoningin Journal of Imaging Science and Technology,  2001,  pp 291 - 296,

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Copyright © Society for Imaging Science and Technology 2001
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