Invisible Colour Image Watermarking Technique for Colour Images Using DWT and SVD

Tharindu Ketipearachchi,Manjusri Wickramasinghe

doi:10.4038/icter.v13i2.7214

Tharindu Ketipearachchi, Manjusri Wickramasinghe

Open Access

https://doi.org/10.4038/icter.v13i2.7214

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Abstract

Recent popularity of social media and content sharing networks paired with fast Internet access has paved the way for mass multimedia content sharing on the Internet. As a result, volumes of sensitive data are been shared in various digital forms such that the risk of copyright infringements and misappropriations of digital content has grown at the same rate. In order to preserve copyright or authenticate digital content, digital watermarking has been considered as a viable solution for these problems. In the domain of digital watermarking, embedding a colour image as an invisible watermark to a colour cover image remain a challenge. As a solution to this problem, this paper presents such an invisible watermarking scheme based on DWT and SVD. The watermark created using the novel approach is experimentally shown to have the robustness, imperceptibility and capacity requirements.

Highlights

At present, most individuals on the Internet are used to post images and videos of their day-to-day activities on social media and sharing platforms
The algorithm explained in the paper represents an invisible colour image watermarking scheme with an informed detector based on Discrete Wavelet Transformation (DWT) and Singular Value Decomposition (SVD) for colour images
As per the background research, there are number of issues identified with respect to invisible colour image watermarking on a colour image cover

Summary

Introduction

Most individuals on the Internet are used to post images and videos of their day-to-day activities on social media and sharing platforms. Volumes of sensitive data have been spread across the Internet making such data vulnerable to unauthorized access. Such unauthorized access paves the way for intellectual property violations which are aggravated by the accessibility of the Internet. The ability to prove the ownership of an image or digital media is the key to claim of copyright violation. The concept of digital watermarking has emerged as a popular method to prove ownership. When including a watermark into digital data there are a set of aspects that govern the quality of the embedding a watermark to a digital data. The watermarks embedded by the algorithm is experimentally shown to satisfy the quality aspects mentioned above

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