Performance Analysis of IWT-SVD based Image Watermarking with DWT-SVD under Various Attacks
Amit Kumar, Rajesh Bhatt, Girish Parmar · Journal of Emerging Technologies and Innovative Research · 2018
There are numerous applications of watermarking, i.e., in security, protection of rights and authentication, etc. This paper deals with watermarking technique based on Integer Wavelet Transform (IWT) and Singular Value Decomposition (SVD). The technique has been implemented and compared with other combined image watermarking technique based on DWT-SVD. In both watermarking techniques, the cover image is decomposed into four sub bands (LL, LH, HL and HH) using DWT or IWT and thereafter SVD is applied to LL sub band. Both the watermarking techniques; DWT-SVD and IWT-SVD have also been compared without and with several attacks. Experimental results demonstrated that IWT-SVD watermarking technique is imperceptible and robust against most of the applied attacks such as; noise addition, resizing and filtering