Title :
Analytical properties of Teager´s filter
Author :
Restrepo, Alejandro ; Zuluaga, Luis Fdo ; Ortiz, Herberto ; Ojeda, Victor
Author_Institution :
Dept. Ingenieria Electrica, Los Andes Univ., Merida, Venezuela
Abstract :
Teager´s algorithm (Kaiser, 1990) called here Teager´s filter, has previously been shown to be a useful contrast enhancer with good qualitative behavior on images (Mitra and Li, 1992). We consider its set of root signals, it nullity set and its constancy set. We derive expressions for the output probability density function when the input is white noise
Keywords :
filtering theory; image enhancement; nonlinear filters; white noise; Teager´s algorithm; Teager´s filter; constancy set; contrast enhancer; images; input; nullity set; output pdf; output probability density function; root signals; white noise; Band pass filters; Convolution; Equations; Frequency; Nonlinear filters; Transfer functions; Vectors;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.647790
