26 February 2010 A new digital image watermarking using wavelet transform domain
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Proceedings Volume 7546, Second International Conference on Digital Image Processing; 754602 (2010) https://doi.org/10.1117/12.856001
Event: Second International Conference on Digital Image Processing, 2010, Singapore, Singapore
Abstract
This paper presents a new robust watermarking scheme based on a block probability in wavelet domain. A binary watermark image is permutated by a chaotic function and a secret key. apply Discrete Wavelet Transform (DWT) to decompose the cover host image into four non-overlapping multi resolution sub-bands and then each bit of the binary encoded watermark is embedded by modifying the intensities of a non-overlapping block of 4×4 of the HL sub-band using a probability method. The extraction of the watermark is by comparing the intensities of a block of 4×4 of the watermarked and the original images and calculating the probability of detecting '0' or '1'. Experimental results show that the proposed scheme is robust and secure against a wide range of image processing operations.
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Hadi Pournader, Hadi Pournader, Mohammad Firouzmand, Mohammad Firouzmand, Saeed Ayat, Saeed Ayat, } "A new digital image watermarking using wavelet transform domain", Proc. SPIE 7546, Second International Conference on Digital Image Processing, 754602 (26 February 2010); doi: 10.1117/12.856001; https://doi.org/10.1117/12.856001
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