Image adaptive DCT- SVD based digital watermarking scheme by human visual characteristics

Journal of Engineering Research

Mohammed Ramadan Saady¹  Mohammed Riazuddin⁴  Bijoy Babu⁴  Omer Bin Hussain²  Justin Varghese²  Saudia Subash³ 

[1] College of Science, South Valley University, Egypt.;College of Computer Science, King Khalid University, Abha, Saudi Arabia;Centre for Information Technology & Engineering, Manonmaniam Sundaranar University, India.;King Khalid University, Abha, KSA

关键词: Copyright protection;    discrete wavelet transform (DWT);    image watermarking;    singular value decomposition (SVD);   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Kuwait University * Academic Publication Council

【 摘 要 】

The paper proposes an efficient watermarking scheme by incorporating singular valuedecomposition (SVD), discrete cosine transform (DCT) and homogeneity informationin the carrier image. The algorithm decomposes the carrier and watermark images intonon-overlapping blocks and analyzes the homogeneity of pixels in them to identify thepossible blocks of carrier image where the suitable watermark block can be attached sothat the watermarking process maintain better visual image fidelity in the watermarkedimage. The algorithm avoids the decomposed high frequency carrier image blockswhile attaching watermark blocks to reduce the visual distortion in the watermarkedimages. Experimental results show that the proposed algorithm produces good qualitywatermarked images and are less immune to potential attacks.

【 授权许可】

Unknown