Optimal nonlinear fax restoration

John C. Handley; Edward R. Dougherty

doi:10.1117/12.171110

23 March 1994 Optimal nonlinear fax restoration

Proceedings Volume 2181, Document Recognition; (1994) https://doi.org/10.1117/12.171110
Event: IS&T/SPIE 1994 International Symposium on Electronic Imaging: Science and Technology, 1994, San Jose, CA, United States

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.

Citation Download Citation

John C. Handley and Edward R. Dougherty "Optimal nonlinear fax restoration", Proc. SPIE 2181, Document Recognition, (23 March 1994); https://doi.org/10.1117/12.171110

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