文章基本信息

标题：Wavelet Based Authentication/Secret Transmission Through Image Resizing (WASTIR)
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作者：Madhumita Sengupta ; J. K. Mandal
期刊名称：Signal & Image Processing : An International Journal (SIPIJ)
印刷版ISSN：2229-3922
电子版ISSN：0976-710X
出版年度：2013
卷号：4
期号：2
页码：59
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：The paper is aimed for a wavelet based steganographic/watermarking technique in frequency domaintermed as WASTIR for secret message/image transmission or image authentication. Number systemconversion of the secret image by changing radix form decimal to quaternary is the pre-processing of thetechnique. Cover image scaling through inverse discrete wavelet transformation with false Horizontal andvertical coefficients are embedded with quaternary digits through hash function and a secret key.Experimental results are computed and compared with the existing steganographic techniques like WTSIC,Yuancheng Li’s Method and Region-Based in terms of Mean Square Error (MSE), Peak Signal to NoiseRatio (PSNR) and Image Fidelity (IF) which show better performances in WASTIR.
关键词：WASTIR; Authentication; Steganography; Watermarking; DWT; MSE; PSNR; IF.