Automatic histogram specification based on fuzzy set operations for image enhancement

Author

Chen, Bor-Tow ; Chen, Yung-Sheng ; Hsu, Wen-Hsing

Author_Institution

Inst. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan

Volume

2

Issue

2

fYear

1995

Firstpage

37

Lastpage

40

Abstract

An automatic histogram specification method is proposed for image enhancement. Parameterized fuzzy number (PFN) is adopted for the representation of image histogram. The desired histogram PFN is automatically constructed by the fuzzy addition of the tuning PFN and the original one. The tuning PFN is implied from the fuzzy inference rules. The mapping function is decided by the relations between the desired PFN and the original one. The effectual results are demonstrated by the mapping functions which meet the image enhancement requirements. The performance and effectiveness are shown by the analysis and the resultant image in comparison with other methods.<>

Keywords

fuzzy set theory; image enhancement; image representation; inference mechanisms; automatic histogram specification; fuzzy addition; fuzzy inference rules; fuzzy set operations; image enhancement; image histogram representation; mapping functions; parameterized fuzzy number; performance; tuning PFN; Frequency; Fuzzy set theory; Fuzzy sets; Histograms; Humans; Image analysis; Image enhancement; Lighting; Performance analysis; Student members;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/97.365534

Filename

365534