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.
Optimal nonlinear fax restoration
Document Recognition ; 1994 ; San Jose,CA,United States
Proc. SPIE ; 2181
1994-03-23
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Optimal nonlinear fax restoration [2181-23]
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