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Paper data
Optimum non linear document restoration through linear greyscale operators

Marshall Stephen, University of Strathclyde

Page numbers in the proceedings:
Volume II pp 262-265

Image Filtering

Paper abstract
Non linear image processing operators give excellent results in a number of image processing tasks such as restoration and object recognition. However they are frequently excluded from use in solutions because the system designer does not wish to introduce additional hardware or algorithms and because their design can appear to be ad hoc. This paper explains how various non linear image processing operators may be implemented on a basic linear image processing system using only convolution and thresholding operations. As well as describing novel algorithms for implementation within a linear system the paper also explains how the optimum filter parameters may be estimated for a given image processing task.

A PDF version is available here