Multiple Image Watermarking with Discrete Cosine Transform  

作　　者：Mahbuba Begum Mohammad Shorif Uddin Mahbuba Begum;Mohammad Shorif Uddin(Department of Computer Science and Engineering, Mawlana Bhashani Science and Technology University, Tangail, Bangladesh;Department of Computer Science and Engineering, Jahangirnagar University, Dhaka, Bangladesh)

机构地区：[1]Department of Computer Science and Engineering, Mawlana Bhashani Science and Technology University, Tangail, Bangladesh [2]Department of Computer Science and Engineering, Jahangirnagar University, Dhaka, Bangladesh

出　　处：《Journal of Computer and Communications》2021年第3期88-94,共7页电脑和通信（英文）

摘　　要：Multiple image watermarking is an advanced concept of singular watermarking techniques. The existing singular digital image watermarking techniques cannot obtain all the design goals, such as imperceptibility, robustness, security, and capacity simultaneously with perfection. Hence, the multiple image watermarking technique is designed that embeds several watermarks into the same host image for conveying multiple information. This paper proposed a multiple image watermarking technique with Discrete Cosine Transform (DCT) for ensuring the low computational time for embedding, encryption, decryption as well as extraction of the watermark images. Here, DCT is used to ensure the visual quality of the host image, and a random binary matrix is used to improve the security of the digital image. We have given a basic framework for multiple image watermarking. Our experimental results show satisfactory performance.Multiple image watermarking is an advanced concept of singular watermarking techniques. The existing singular digital image watermarking techniques cannot obtain all the design goals, such as imperceptibility, robustness, security, and capacity simultaneously with perfection. Hence, the multiple image watermarking technique is designed that embeds several watermarks into the same host image for conveying multiple information. This paper proposed a multiple image watermarking technique with Discrete Cosine Transform (DCT) for ensuring the low computational time for embedding, encryption, decryption as well as extraction of the watermark images. Here, DCT is used to ensure the visual quality of the host image, and a random binary matrix is used to improve the security of the digital image. We have given a basic framework for multiple image watermarking. Our experimental results show satisfactory performance.

关 键 词：Multiple Watermarking Discrete Cosine Transform Discrete Wavelet Transform Arnold Transform 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]