Adaptive unsharp masking for contrast enhancement

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Publication Type Journal Article
School or College College of Engineering
Department Electrical & Computer Engineering
Creator Mathews, V. John
Other Author Polesel, A.; Ramponi, G.
Title Adaptive unsharp masking for contrast enhancement
Date 1997
Description ABSTRACT A new scheme o,f unsharp masking for image contrast enhancement is presented in this paper. An adaptive algorithm is introduced so that a sharpening action is performed only in locations where the image exhibits significant dynamics. Hence, the amplification of noise in smooth areas is reduced. An adaptive directional filtering is also performed so as to provide suitable emphasis to the different directional characteristics of the detail. Because it is capable of treating high-detail and medium-detail areas differently, this algorithm also avoids unpleasant overshoot artifacts in regions of sharp transitions. Experimental results demonstrating the usefulness of the adaptive operator in an application involving preprocessing of images for enhancement prior to zooming are also included in the paper.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
First Page 267
Last Page 270
Language eng
Bibliographic Citation Polesel, A., Ramponi, G., & Mathews, V. J. (1997). Adaptive unsharp masking for contrast enhancement. IEEE Int. Conf. Image Processing, 267-70. September.
Rights Management (c)1997 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Format Medium application/pdf
Format Extent 993,237 bytes
Identifier ir-main,15159
ARK ark:/87278/s6k07p0q
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 707413
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