RATIONAL UNSHARP MASKING TECHNIQUE

Authors
RAMPONI G POLESEL A
Citation
G. Ramponi et A. Polesel, RATIONAL UNSHARP MASKING TECHNIQUE, Journal of electronic imaging, 7(2), 1998, pp. 333-338
Citations number
16
Categorie Soggetti
Engineering, Eletrical & Electronic",Optics,"Photographic Tecnology
Journal title
Journal of electronic imaging → ACNP
ISSN journal
10179909
Volume
7
Issue
2
Year of publication
1998
Pages
333 - 338
Database
ISI
SICI code
1017-9909(1998)7:2<333:RUMT>2.0.ZU;2-R
Abstract
The linear unsharp masking technique used in image contrast enhancemen t is modified in this article by introducing a control term expressed as a rational function of the local input data. In this way noise ampl ification is avoided and, at the same time, overshoot effects on sharp edges are limited. Experimental results support the validity of the m ethod even as a preprocessor for interpolation systems. (C) 1998 SPIE and IS&T. [S1017-9909(98)00702-8].