Using digital watermarks with image signatures to mitigate the threat of the copy attack

Barr, J.; Bradley, Brett A.; Hannigan, Brett T.

doi:10.1109/icassp.2003.1199109

Cited by 22 publications

(12 citation statements)

References 7 publications

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“…In [9] J. Barr et.al., developed a system which will mitigate the threat posed by the copy attack. They first developed an image signature algorithm which uses highly stable low frequency DCT coefficients to uniquely describe the image.…”

Section: Literature Surveymentioning

confidence: 99%

Improved Protection Using Self-Recognized Image

Mahajan¹,

Bhati²

2015

IJIRCCE

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ABSTRACT:The protection of data can be done by several mechanism to secure and achieve authenticity and integrity of data. Data hiding is a technique in which a piece of information can be embedded to cover media data for security reason. So a digital watermarking can be used to protect the copyright of digital products. In such processes it is needed to maintain the original view of the host image. For evaluating the watermarking methods performance it must be concentrate on the robustness of watermarked image quality and restored image quality. For this purpose the preinserted encoding mechanism can be used in the discrete cosine transform domain. So a simulator preinserted code can address the next level of protection to perform various procedures for the sake of integrity and security.

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Section: Literature Surveymentioning

confidence: 99%

Improved Protection Using Self-Recognized Image

Mahajan¹,

Bhati²

2015

IJIRCCE

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“…Finally, feature vectors are extracted from these blocks. In this paper, we adopt the DCT-sign-based feature [9] as depicted in Figure 1; each block is resized into 8x8 pixels, and 2D-DCT is performed. Top-v AC coefficients in the zigzag scan order are used as a feature vector.…”

Section: Feature Extraction and Multiple Assignmentmentioning

confidence: 99%

Fast and accurate content-based video copy detection using bag-of-global visual features

Uchida

Takagi

Sakazawa

2012

2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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In this paper, we propose a fast, accurate content-based video copy detection scheme based on bag-of-global visual features, which is characterized by (1) utilizing an efficient DCT-sign-based feature for fast detection; (2) performing multiple assignment in the temporal domain, in addition to the feature and spatial domain to ensure repeatability in segment-level matching; and (3) adopting an inverse document frequency weighting and temporal burstiness-aware scoring to emphasize distinctive visual words. Despite detection 95 times faster than real-time, the proposed system achieves a false negative rate of 0.2% against queries that are altered by non-geometric transformations without any false positives.

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“…However, there indeed exist attacks that can defeat a watermarking system without sacrificing media quality. Among the currently known attacks [43], the collusion attack [15], [35], [37], which is a removal attack, and the copy attack [3], [17], which is a protocol attack, are typical examples of attacks that can achieve the aforementioned goal. The common step used to realize a collusion or copy attack is watermark estimation, which is usually accomplished by means of a denoising procedure.…”

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confidence: 99%

“…The related works [3], [8], [15], [37] proposed to resist either the collusion attack or the copy attack are briefly discussed as follows. In [3], Barr et al proposed to concatenate a watermark message and a block signature as an embedded signal to combat the copy attack. Their block signature is generated by first choosing the 16 16 DCT coefficients in the lowest frequency subbands (the DC term is zeroed out) from a 128 128 DCT transformed image block.…”

mentioning

confidence: 99%

“…It is important to note that we present a different design strategy [21], where the embedded signal is a combination of a watermark message and a block media hash through shuffling, as will be described in Section IV. By comparing our method and those methods in [3], [8], [15], [37], it is obvious that either the design strategy of a content-dependent watermark or the employed application domain is different. These characteristics clearly distinguish our method from the existing methods.…”

mentioning

confidence: 99%

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Near-Optimal Watermark Estimation and Its Countermeasure: Antidisclosure Watermark for Multiple Watermark Embedding

Hsu

2007

IEEE Trans. Circuits Syst. Video Technol.

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Abstract-Robustness is a critical requirement for a watermarking scheme to be practical. Current watermarking methods usually claim a certain degree of robustness against those attacks that aim to destroy a hidden watermark at the expense of degrading the quality of the media data. However, there exist watermarkestimation attack (WEA), such as the collusion attack, which can remove watermarks while making the attacked data further transparent to its original. Another kind of attack is the copy attack, which can cause protocol ambiguity within a watermarking system. The aim of this paper is to deal with the WEA, which is clever at disclosing hidden information for unauthorized purposes. To this end, we begin by gaining insight into the WEA, leading to formal definitions of optimal watermark estimation and near-perfect cover data recovery. Subject to these definitions, a new content-dependent watermark (CDW) is proposed to deal with watermark-estimation attack. Mathematical analyses and experimental results consistently verify the effectiveness of the proposed watermark estimation and recovery algorithm, and the proposed content-dependent watermark. To our knowledge, this anti-disclosure watermark is the first work that can give those multiple-redundant watermark embedding approaches resistance to both collusion and copy attacks.Index Terms-Collusion attack, content-dependent watermark, copy attack, cover data recovery, media hash, robustness, watermark estimation.

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Using digital watermarks with image signatures to mitigate the threat of the copy attack

Cited by 22 publications

References 7 publications

Improved Protection Using Self-Recognized Image

Improved Protection Using Self-Recognized Image

Fast and accurate content-based video copy detection using bag-of-global visual features

Near-Optimal Watermark Estimation and Its Countermeasure: Antidisclosure Watermark for Multiple Watermark Embedding

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