Title :
Image enhancement using the log-ratio approach
Author :
Deng, G. ; Cahill, L.W.
Author_Institution :
Dept. of Electron. Eng., La Trobe Univ., Bundoora, Vic., Australia
fDate :
31 Oct-2 Nov 1994
Abstract :
In this paper, we present a new image enhancement algorithm for interactively modifying the contrast and the sharpness of an image. The proposed algorithm aims at solving two basic problems associated with typical image enhancement technique: the enhanced image is usually out of the gray level range of an image, and there are conflicting requirements for image sharpening and noise reduction. A vector space based approach, the log-ratio approach, is employed to solve the first problem and a multiscale approach is used for the second problem. The proposed algorithm has been used successfully to enhance medical images
Keywords :
image enhancement; medical image processing; noise; vectors; algorithm; gray level range; image contrast; image enhancement; image sharpness; log-ratio approach; medical images; multiscale approach; noise reduction; vector space based approach; Acoustic noise; Biomedical imaging; Brightness; Filters; Histograms; Image enhancement; Image processing; Noise reduction; Pixel; Vectors;
Conference_Titel :
Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-6405-3
DOI :
10.1109/ACSSC.1994.471444
