The dot diffusion method for digital halftoning has the advantage of parallelism unlike the error diffusion method. The method was previously improved by optimization of the so-called class matrix so that the resulting halftones are comparable to the error diffused halftones. We give a mathematical description of the dot diffusion method. This description is then applied in inverse halftoning.
['Murat Mese', 'P. P. Vaidyanathan']
A mathematical description of the dot diffusion algorithm in image halftoning with application in inverse halftoning