现有影像逼真度定义的缺陷及其改进

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Defect of the existing fidelity definition and its improvement

YIN Zhong-hai;JIAN Jian-feng;ZHOU Li-hua;JI Hong;CHEN Jie

(Ministry of Education Key Lab. of Computer Network and Information Security, Xidian Univ., Xi'an 710071, China)

Received:1900-01-01 Revised:1900-01-01 Online:2004-12-20 Published:2004-12-20

Abstract

Abstract: The defect of the existing fidelity definition is discussed. By using this definition, it is found that two obviously different images can be determined to be approximate or the same. With the defect in mind, an improved fidelity definition is presented. The difference and relation between the two definitions are discussed and the analytic expression for deriving one definition from the other is also presented.

Key words: image fidelity, error, watermarking, image processing

CLC Number:

TP309

YIN Zhong-hai;JIAN Jian-feng;ZHOU Li-hua;JI Hong;CHEN Jie.

Defect of the existing fidelity definition and its improvement

[J].J4, 2004, 31(6): 833-836.

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Defect of the existing fidelity definition and its improvement

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