Articles

Rational unsharp masking technique

[+] Author Affiliations
Giovanni Ramponi, Andrea Polesel

University of Trieste, DEEI, via A. Valerio 10, I-34127?Trieste, Italy

J. Electron. Imaging. 7(2), 333-338 (Apr 01, 1998). doi:10.1117/1.482649
History: Received Aug. 9, 1997; Revised Nov. 4, 1997; Accepted Nov. 19, 1997
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Abstract

The linear unsharp masking technique used in image contrast enhancement is modified in this article by introducing a control term expressed as a rational function of the local input data. In this way noise amplification is avoided and, at the same time, overshoot effects on sharp edges are limited. Experimental results support the validity of the method, even as a preprocessor for interpolation systems. © 1998 SPIE and IS&T.

© 1998 SPIE and IS&T

Citation

Giovanni Ramponi and Andrea Polesel
"Rational unsharp masking technique", J. Electron. Imaging. 7(2), 333-338 (Apr 01, 1998). ; http://dx.doi.org/10.1117/1.482649


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