A new digital image watermarking using wavelet transform domain

Hadi Pournader; Mohammad Firouzmand; Saeed Ayat

doi:10.1117/12.856001

26 February 2010 A new digital image watermarking using wavelet transform domain

Hadi Pournader, Mohammad Firouzmand, Saeed Ayat

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.

Citation Download Citation

Hadi Pournader, Mohammad Firouzmand, and 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); https://doi.org/10.1117/12.856001

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