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Proceedings Paper

A new digital image watermarking using wavelet transform domain
Author(s): Hadi Pournader; Mohammad Firouzmand; Saeed Ayat
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Paper 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.

Paper Details

Date Published: 26 February 2010
PDF: 6 pages
Proc. SPIE 7546, Second International Conference on Digital Image Processing, 754602 (26 February 2010); doi: 10.1117/12.856001
Show Author Affiliations
Hadi Pournader, Payame Noor Univ., Tehran (Iran, Islamic Republic of)
Mohammad Firouzmand, Iranian Research Organization for Science and Technology (Iran, Islamic Republic of)
Saeed Ayat, Payame Noor Univ., Najafabad (Iran, Islamic Republic of)

Published in SPIE Proceedings Vol. 7546:
Second International Conference on Digital Image Processing
Kamaruzaman Jusoff; Yi Xie, Editor(s)

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