Title :
A rational edge-preserving smoother
Author :
Ramponi, Giovanni
Author_Institution :
Dipartimento di Elettrotecnica Elettronica ed Inf., Trieste Univ., Italy
Abstract :
The classical problem of edge-preserving image smoothing is coped with by exploiting the properties of a rational filter. The proposed operator acts as a lowpass linear filter in uniform image areas; in presence of a detail, the coefficients of the pixels which are involved in the luminance transition are suitably modified. Some computer simulations show the capabilities of this technique
Keywords :
edge detection; image enhancement; low-pass filters; smoothing methods; computer simulations; image smoothing; lowpass linear filter; luminance transition; operator; pixel coefficients; rational edge-preserving smoother; rational filter; uniform image areas; Computer simulation; Electronic mail; Laplace equations; Nonlinear distortion; Nonlinear filters; Pixel; Polynomials; Signal to noise ratio; Tail; Transfer functions;
Conference_Titel :
Image Processing, 1995. Proceedings., International Conference on
Conference_Location :
Washington, DC
Print_ISBN :
0-8186-7310-9
DOI :
10.1109/ICIP.1995.529062
