Selection method of optimum wavelet bases for image signature

Author

Wang, Xiaofeng ; Dou, Chunni ; Tian, Lihua

Author_Institution

Sch. of Sci., Xi´´an Univ. of Technol., Xi´´an, China

fYear

2010

fDate

24-28 Oct. 2010

Firstpage

960

Lastpage

963

Abstract

The properties of wavelet bases have greatly influence on algorithm performances when wavelet functions are used to construct image signature. Characteristics of image signature, such as robustness, tamper sensitivity, tamper localization, and compactness are analyzed in this work. Moreover, properties of Daubechies wavelet and its decomposition levels are analyzed. According to the results of our study, image signature generated by db1, db2, or db3 show stronger robustness and compactness yet lower tamper sensitivity and tamper localization capability with a higher wavelet decomposition level; and it exhibit higher computational complexity and lower compactness with a higher wavelet vanishing moment. Our results suggest that db2 wavelet is suitable for the construction of image signature, and also, its decomposition level has been recommended.

Keywords

authorisation; computational complexity; image coding; wavelet transforms; Daubechies wavelet; computational complexity; image authentication; image signature; optimum wavelet base; tamper localization; tamper sensitivity; wavelet decomposition; wavelet function; wavelet vanishing moment; Algorithm design and analysis; Discrete wavelet transforms; Image coding; Robustness; Transform coding; Wavelet analysis; Daubechies wavelet; Image authentication; Image signature; Wavelet decomposition level;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing (ICSP), 2010 IEEE 10th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-5897-4

Type

conf

DOI

10.1109/ICOSP.2010.5655835

Filename

5655835