Journal
PATTERN RECOGNITION
Volume 38, Issue 12, Pages 2363-2372Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.patcog.2005.02.014
Keywords
image thresholding; fuzzy sets; type II fuzzy sets; measures of fuzziness; ultrafuzziness
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Image thresholding is a necessary task in some image processing applications. However, due to disturbing factors, e.g. non-uniform illumination, or inherent image vagueness, the result of image thresholding is not always satisfactory. In recent years, various researchers have introduced new thresholding techniques based on fuzzy set theory to overcome this problem. Regarding images as fuzzy sets (or subsets), different fuzzy thresholding techniques have been developed to remove the grayness ambiguity/vagueness during the task of threshold selection. In this paper, a new thresholding technique is introduced which processes thresholds as type II fuzzy sets. A new measure of ultraftizziness is also introduced and experimental results using laser cladding images are provided. (c) 2005 Pattern Recognition Society. Published by Elsevier Ltd. All rights reserved.
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