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Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
ISSN: 1058-6393
ISBN: 0-8186-6405-3
pp: 198-202
G. Deng , Dept. of Electron. Eng., La Trobe Univ., Bundoora, Vic., Australia
L.W. Cahill , Dept. of Electron. Eng., La Trobe Univ., Bundoora, Vic., Australia
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.<>
INDEX TERMS
image enhancement, noise, vectors, medical image processing
CITATION

G. Deng and L. Cahill, "Image enhancement using the log-ratio approach," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 198-202.
doi:10.1109/ACSSC.1994.471444
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