Quadruple Watermarking against Geometrical Attacks Based on Searching for Vertexes

Hai-Yan ZHAO; Hong-Xia WANG

doi:10.1093/ietfec/e90-a.6.1244

Quadruple Watermarking against Geometrical Attacks Based on Searching for Vertexes

Hai-Yan ZHAO, Hong-Xia WANG

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A new quadruple watermarking scheme of digital images against geometrical attacks is proposed in this letter. We treat the center and the four vertexes of the original image as the reference points and embed the same quadruple watermarks by means of polar coordinates, which is geometrically invariant. The center of an image is assumed to not to be removed after rotating, scaling and local distortions according to the general practical image processing. In the watermark extraction process, the vertexes of the image are found by a searching method. Thus watermark synchronization is obtained. Experimental results show that the scheme is robust to the geometrical distortions including rotation, scaling, cropping and local distortions.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E90-A No.6 pp.1244-1247

Publication Date: 2007/06/01

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Online ISSN: 1745-1337

DOI: 10.1093/ietfec/e90-a.6.1244

Type of Manuscript: LETTER

Category: Information Security

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Hai-Yan ZHAO, Hong-Xia WANG, "Quadruple Watermarking against Geometrical Attacks Based on Searching for Vertexes" in IEICE TRANSACTIONS on Fundamentals, vol. E90-A, no. 6, pp. 1244-1247, June 2007, doi: 10.1093/ietfec/e90-a.6.1244.
Abstract: A new quadruple watermarking scheme of digital images against geometrical attacks is proposed in this letter. We treat the center and the four vertexes of the original image as the reference points and embed the same quadruple watermarks by means of polar coordinates, which is geometrically invariant. The center of an image is assumed to not to be removed after rotating, scaling and local distortions according to the general practical image processing. In the watermark extraction process, the vertexes of the image are found by a searching method. Thus watermark synchronization is obtained. Experimental results show that the scheme is robust to the geometrical distortions including rotation, scaling, cropping and local distortions.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e90-a.6.1244/_p

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@ARTICLE{e90-a_6_1244,
author={Hai-Yan ZHAO, Hong-Xia WANG, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Quadruple Watermarking against Geometrical Attacks Based on Searching for Vertexes},
year={2007},
volume={E90-A},
number={6},
pages={1244-1247},
abstract={A new quadruple watermarking scheme of digital images against geometrical attacks is proposed in this letter. We treat the center and the four vertexes of the original image as the reference points and embed the same quadruple watermarks by means of polar coordinates, which is geometrically invariant. The center of an image is assumed to not to be removed after rotating, scaling and local distortions according to the general practical image processing. In the watermark extraction process, the vertexes of the image are found by a searching method. Thus watermark synchronization is obtained. Experimental results show that the scheme is robust to the geometrical distortions including rotation, scaling, cropping and local distortions.},
keywords={},
doi={10.1093/ietfec/e90-a.6.1244},
ISSN={1745-1337},
month={June},}

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TY - JOUR
TI - Quadruple Watermarking against Geometrical Attacks Based on Searching for Vertexes
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1244
EP - 1247
AU - Hai-Yan ZHAO
AU - Hong-Xia WANG
PY - 2007
DO - 10.1093/ietfec/e90-a.6.1244
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E90-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 2007
AB - A new quadruple watermarking scheme of digital images against geometrical attacks is proposed in this letter. We treat the center and the four vertexes of the original image as the reference points and embed the same quadruple watermarks by means of polar coordinates, which is geometrically invariant. The center of an image is assumed to not to be removed after rotating, scaling and local distortions according to the general practical image processing. In the watermark extraction process, the vertexes of the image are found by a searching method. Thus watermark synchronization is obtained. Experimental results show that the scheme is robust to the geometrical distortions including rotation, scaling, cropping and local distortions.
ER -