26 February 2010 HVS based robust image watermarking scheme using slant transform
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Proceedings Volume 7546, Second International Conference on Digital Image Processing; 75461F (2010) https://doi.org/10.1117/12.853476
Event: Second International Conference on Digital Image Processing, 2010, Singapore, Singapore
Abstract
This paper presents a robust algorithm for digital image watermarking based on Human Visual System (HVS). Watermark is embedded in the Slant Transform domain by altering the transform coefficients. The perceptibility of the watermarked image using proposed algorithm is improved over DCT based algorithm9 by embedding the watermark image in selected positions based on the HVS weightage matrix. The proposed method is robust and the watermark image can survive to many image attacks like noise, bit plane removal, cropping, histogram equalization, rotation, and sharpening. Results are compared with DCT based watermarking method and found to be superior in terms of the quality of the watermarked image and resilience to attacks. The metrics used to test the robustness of the proposed algorithm are Peak Signal to Noise Ratio (PSNR) and Normalized Cross Correlation (NCC).
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K. Veeraswamy, B. Chandra Mohan, S. Srinivas Kumar, "HVS based robust image watermarking scheme using slant transform", Proc. SPIE 7546, Second International Conference on Digital Image Processing, 75461F (26 February 2010); doi: 10.1117/12.853476; https://doi.org/10.1117/12.853476
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