Title :
2-D adaptive piecewise-linear filter for image enhancement
Author :
Pahor, V. ; Ramponi, G. ; Sicuranza, G.L.
Author_Institution :
D.E.E.I., University of Trieste via A. Valerio, 10, 34127 Trieste, Italy
Abstract :
A two-dimensional adaptive nonlinear filter, called 2-D FIR-PWL filter is introduced for noise cancellation from images. It is based on the cascade of a linear FIR filter and a piecewise-linear interpolating function. Experimental results show a very good behaviour of the filter, which outperforms in many application examples the Sigma filter both in terms of visual quality and numerical results.
Keywords :
Finite impulse response filters; Image edge detection; Least squares approximations; Line enhancers; Noise; Smoothing methods; Training;
Conference_Titel :
European Signal Processing Conference, 1996. EUSIPCO 1996. 8th
Conference_Location :
Trieste, Italy
Print_ISBN :
978-888-6179-83-6
