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Paper Details
Paper Title
Digital Image Watermarking Method 4 Level DWT-DCT on the Basis of PSNR
Authors
Jyoti sahu , Dolley shukla
Abstract
The authenticity & copyright protection are two major problems in handling digital multimedia .The Image watermarking is most popular method for copyright protection by discrete Wavelet Transform (DWT) which performs 3 Level Decomposition of original (cover) image and watermark image is embedded in Lowest Level (LL2) sub band of cover image. Inverse Discrete Wavelet Transform (IDWT) is used to recover original image from watermarked image. And Discrete Cosine Transform (DCT) which convert image into Blocks of M bits and then reconstruct using IDCT. In this paper we have compared watermarking using DWT & DWT-DCT methods performance analysis on basis of PSNR, Similarity factor of watermark and recovered watermark.
Keywords- DCT, DWT, Original Image, Watermark, Watermarked Image.
Publication Details
Unique Identification Number - IJEDR1502173Page Number(s) - 1008-1012Pubished in - Volume 3 | Issue 2 | May 2015DOI (Digital Object Identifier) - Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
Jyoti sahu , Dolley shukla, " Digital Image Watermarking Method 4 Level DWT-DCT on the Basis of PSNR", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.3, Issue 2, pp.1008-1012, May 2015, Available at :http://www.ijedr.org/papers/IJEDR1502173.pdf
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