A novel robust watermarking scheme for copyright-proving

Abdelwahab, Mohamed A.; Selim, Hany; Sayed, Usama

doi:10.1109/icces.2009.5383216

Cited by 4 publications

(8 citation statements)

References 6 publications

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“…In this paper we used the same original image and binary logo as [4] and [5] for better comparison. Fig.…”

Section: Applying Attacks To the Original Imagementioning

confidence: 99%

“…Different signal processing and geometric attacks were applied on the test image and the Normalized cross correlation between the retrieved logo and the original logo is computed. In addition the related methods [4], [5] and [9] have been implemented and the results of our proposed method are compared with them. Following is the list of attacks that were applied to the test image.…”

Section: Applying Attacks To the Original Imagementioning

confidence: 99%

“…This scheme is not robust enough under some geometric attacks. A new wavelet-based zero-watermarking algorithm was proposed in [5] that achieved better robustness than [4] by applying a kind of smoothing filter on t-level LL subband. An adaptive approach proposed in [6] which allowed image owners to adjust the strength of watermarks through a threshold by using Sobel technology [7].…”

Section: Introductionmentioning

confidence: 99%

“…Although this method has high performance on non geometric attacks, it still does not achieve high performance for geometric attacks such as rotation and shearing. In this paper, we use discrete wavelet transform and a normalization procedure to extract binary features and compare our scheme with [4], [5] and [9] schemes.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, a new watermarking approach called zero-watermarking has been proposed in which the quality of the original image does not change, but the watermark is constructed by extracting features of the original image. Recently, a group of zero-watermarking methods have been introduced [4,5,6,8,9] that extract some binary features from the host image. Then by applying exclusive-or between these extracted features and the binary logo, a verification map is achieved.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A Robust Zero-Watermark Copyright Protection Scheme Based on DWT and Image Normalization

Shakeri

Jamzad

2011

Advances in Image and Video Technology

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Abstract. Recently, protecting the copyright of digital media has become an imperative issue due to the growing illegal reproduction and modification of digital media. A large number of digital watermarking algorithms have been proposed to protect the integrity and copyright of images. Traditional watermarking schemes protect image copyright by embedding a watermark in the spatial or frequency domain of an image. However, these methods degrade the quality of the original image in some extend. In recent years, a new approach called zero-watermarking algorithms is introduced. In these methods, the watermark does not require to be embedded into the protected image but is used to generate a verification map which is registered to a trusted authority for further protection. In this paper a robust copyright proving scheme based on discrete wavelet transform is proposed. It uses a normalization procedure to provide robustness against geometric distortions and a cellular automaton for noise robustness. Experimental results on images with different complexity demonstrate that our proposed scheme is robust against common geometric and non geometric attacks including blurring, JPEG compression, noise addition, sharpening, scaling, rotation, and cropping. In addition, our experimental results obtained on images with different complexities showed that our method could outperform the related methods in most cases.

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“…In this paper we used the same original image and binary logo as [4] and [5] for better comparison. Fig.…”

Section: Applying Attacks To the Original Imagementioning

confidence: 99%