The MIIS Eprints Archive

Backward Diffusion Methods for Digital Halftoning

Gratton, M. (2006) Backward Diffusion Methods for Digital Halftoning. [Study Group Report]



We examine using discrete backward diffusion to produce digital halftones.
The noise introduced by the discrete approximation to backwards diffusion forces
the intensity away from uniform values, so that rounding each pixel to black or
white can produce a pleasing halftone. We formulate our method by considering
the Human Visual System norm and approximating the inverse of the blurring
operator. We also investigate several possible mobility functions for use in a
nonlinear backward diffusion equation for higher quality results.

Item Type:Study Group Report
Problem Sectors:Information and communication technology
Study Groups:US Workshop on Mathematical Problems in Industry > 22nd MPI [Olin 12/6/2006 - 16/6/2006]
Company Name:IBM
ID Code:146
Deposited By: Richard Booth
Deposited On:01 Jul 2008
Last Modified:29 May 2015 19:48

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