23 March 1994 Optimal nonlinear fax restoration
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Abstract
An optimal filter is estimated to restore binary fax images. The filter is an approximation of the binary conditional expectation which minimizes the expected absolute error between the degraded image and the ideal image. It is implemented as a morphological hit-or-miss filter. Estimation methodology employs a model-based simulation of the degradation due to the fax process.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John C. Handley, John C. Handley, Edward R. Dougherty, Edward R. Dougherty, } "Optimal nonlinear fax restoration", Proc. SPIE 2181, Document Recognition, (23 March 1994); doi: 10.1117/12.171110; https://doi.org/10.1117/12.171110
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