International Journal of Image, Graphics and Signal Processing(IJIGSP)

ISSN: 2074-9074 (Print), ISSN: 2074-9082 (Online)

Published By: MECS Press

IJIGSP Vol.9, No.3, Mar. 2017

A Semi-Blind Watermarking of Color Images Using Slant Transform, DWT and SVD

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Roshan Koju, Shashidhar Ram Joshi

Index Terms

Slant transform;double watermarking;copyright protection;JPEG compression;geometric attacks


This paper presents a robust watermarking for still digital images based on a Slant transform, discrete wavelet transforms and Singular Value Decomposition (SVD). The cover image is transformed using discrete wavelet transform and singular value decomposition while watermark image is transformed using slant transform. It is watermarked by replacing singular values of the high-frequency and low-frequency component of an original image by that of slant transformed watermarks. Experimental results show that our method guarantees the robust resistance against no attack and the robustness against common image processing attacks such as JPEG compression, cropping, histogram equalization, sharpening etc. 

Cite This Paper

Roshan Koju, Shashidhar Ram Joshi,"A Semi-Blind Watermarking of Color Images Using Slant Transform, DWT and SVD", International Journal of Image, Graphics and Signal Processing(IJIGSP), Vol.9, No.3, pp.62-73, 2017.DOI: 10.5815/ijigsp.2017.03.07


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