An optimal and secure watermarking system using SWT-SVD and PSO

PSO Optimized Multipurpose Image Watermarking Using SVD and Chaotic Sequence

Robust SWT SVD Based Digital Image Watermarking Technique

Due to the advancement in computer technology and readily available tools, it is very easy for the unknown users to produce illegal copies of multimedia data which are floating across the Internet. In order to protect those multimedia data on the Internet many techniques are available including various encryption techniques, steganography techniques, watermarking techniques and information hidi...

Comparative Study of SWT-SVD and DWT-SVD Digital Image Watermarking Technique

Due to use of the latest computer technology in early days with wide available tools with various advance application, it is very easy for the unknown users to produce illegal copies of multimedia data which are floating across the Internet. To protect multimedia data such as images, videos,etc. on the Internet many techniques are available including various encryption techniques, steganography...

Optimal SVD based Robust Watermarking using Differential Evolution Algorithm

This paper presents a novel optimal watermarking scheme based on singular value decomposition (SVD) using differential evolution algorithm (DE). The singular values (SVs) of the host image are modified to embed the watermark image by employing multiple scaling factors (SFs). Modifications are optimised using DE to obtain the highest possible robustness without losing the transparency. Experimen...

An Optimal SVD-based Watermarking Framework through Linear Programming

Transparent, robust watermarking schemes tend to insert invisible watermarks with the highest possible energy. Singular values, in singular value decomposition (SVD), are shown to be robust to intentional and unintentional attacks. However, none of the algorithms proposed in the literature considered the visual imperceptibility constraint imposed by the human visual models. In this paper, we in...