Color image enhancement by fuzzy intensification

Authors:
M. Hanmandlu;Devendra Jha;Rochak Sharma
Affiliations:
Department of Electrical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India;Department of Electrical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India;Department of Electrical Engineering, Delhi College of Engineering, New Delhi 110042, India
Venue:
Pattern Recognition Letters
Year:
2003

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Abstract

A Gaussian membership function to model image information in spatial domain has been proposed in this paper. We introduce a new contrast intensification operator, which involves a parameter t for enhancement of color images. By minimizing the fuzzy entropy of the image information, the parameter t is calculated globally. A visible improvement in the image quality for human contrast perception is observed, also demonstrated here by the reduction in 'index of fuzziness' and 'entropy' of the output image.