Title :
Enhancement of medical images using a fuzzy model for segment dependent local equalization
Author :
Stephanakis, Ioannis ; Anastassopoulos, George ; Karayiannakis, A. ; Simopoulos, C.
Author_Institution :
HellenicTelecom. Organ., Athens, Greece
Abstract :
A novel model for fuzzy equalization of medical images is proposed. The method requires a preprocessing step which accomplishes a fuzzy segmentation of the image into N segments with overlapping fuzzy boundaries. Histogram equalization is performed according to individual equalization functions derived from each segment of the image. A fuzzy membership function is associated with each segment. Enhancement results compare well against histogram equalization techniques that derive the equalization transform function from the global histogram of the image.
Keywords :
equalisers; fuzzy logic; image enhancement; image segmentation; medical image processing; fuzzy equalization; fuzzy membership function; histogram equalization; image segmentation; medical image; segment dependent local equalization; Biomedical imaging; Biomedical informatics; Clustering algorithms; Histograms; Image analysis; Image processing; Image segmentation; Pixel; Signal processing algorithms; Surgery;
Conference_Titel :
Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the 3rd International Symposium on
Print_ISBN :
953-184-061-X
DOI :
10.1109/ISPA.2003.1296420
