NDLI: A DWT- based evaluation method of imperceptibility of watermark in watermarked color image

Content Provider	IEEE Xplore Digital Library
Author	Hong-Mei Yang Yong-Quan Liang Xiao-Dong Wang Shu Juan Ji
Copyright Year	2007
Description	Author affiliation: Shandong Univ. of Sci. & Technol., Qingdao (Hong-Mei Yang; Yong-Quan Liang; Shu Juan Ji) \|\| Shandong Univ. of Sci. & Technolog, Qingdao (Xiao-Dong Wang)
Abstract	The imperceptibility of watermark is one of the most important measures that evaluate the performance of the watermarking algorithm. The conventional evaluation model of image quality, PSNR, can't evaluate the watermarked image quality well. The masking of background brightness, texture, frequency and color to human vision of color image is analyzed, and then a DWT-based vision masking calculation method of color image is proposed. Based on this method, the vision quality weight of pixel of color image is computed and an evaluation method of color image quality is derived, which is written as MPSNR. The experimental results show MPSNR works better than conventional model PSNR and its evaluation result is consistent with the human visual sensation, which can be used to evaluate the imperceptibility of watermarking algorithm.
Starting Page	198
Ending Page	203
File Size	563737
Page Count	6
File Format	PDF
ISBN	9781424410651
DOI	10.1109/ICWAPR.2007.4420663
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-02
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	PSNR Brightness Humans Watermarking discrete wavelet transform Discrete wavelet transforms Image texture analysis Image quality Image analysis Image color analysis evaluation of imperceptibility human vision system Frequency Digital watermarking
Content Type	Text
Resource Type	Article

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