Entropy Based Secure and Robust Image Watermarking Using Lifting Wavelet Transform and Multi-Level-Multiple Image Scrambling Technique

Abstract

Online communication platforms prompted the versatility and easiness in communication. That’s why these platforms are witnessing abrupt rise in their usage. On the other side, it can lead to unauthorized replication and alteration of digital images that raises security concerns. Ensuring robustness, security and imperceptibility of digital watermarking has become a critical task. SVD-LWT watermarking technique along with entropy is presented and Y-channel of YCbCr color space is utilized to implant secret information. The presented paper also uses multilevel-multiple image scrambling approach to enhance security. To estimate performance, fidelity parameters namely PSNR, NPCR, UACI, SSIM, UIQI and NCC are used.