Title :
Design of piecewise linear sharpeners
Author_Institution :
Dipt. di Elettrotecnica Elettronica ed Inf., Trieste Univ., Italy
Abstract :
Piecewise linear (PWL) sharpeners are a recently introduced class of image enhancement techniques where the ability to perform detail sharpening and noise smoothing is based on the choice of an appropriate PWL function. In this paper a new multiparameter PWL model is presented. Its nonlinear behavior can easily be adjusted in order to achieve a satisfactory combination of contrast enhancement and noise attenuation. The effects of different parameter settings are discussed.
Keywords :
image denoising; image enhancement; piecewise linear techniques; image enhancement technique; multiparameter PWL model; noise smoothing; parameter setting; piecewise linear sharpener; Attenuation; Gaussian noise; Image enhancement; Image processing; Noise cancellation; Nonlinear filters; Parameter estimation; Piecewise linear techniques; Pixel; Smoothing methods;
Conference_Titel :
Imaging Systems and Techniques, 2005. IEEE International Workshop on
Print_ISBN :
0-7803-8922-0
DOI :
10.1109/IST.2005.1594521
