Robust image watermarking scheme resilient to desynchronization attacks

Changryoul Choi, Jechang Jeong

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

Desynchronization attacks have been a particularly serious threat to watermarking applications. Therefore, there has been a concerted effort to solve this problem. It was Martin Kutter who first proposed to use watermark itself as a tool for estimating the affine transform parameters by its periodicity, what is called the "self-reference" scheme. His brilliant idea has led to many variations. This scheme is resistant to general geometric transform attacks and the "reference" is more difficult to destroy than templates. However, this scheme has some drawbacks such as relatively low capacity and high computational complexity, especially in calculating the autocorrelation function. In this paper, we propose a robust watermarking scheme particularly resilient to desynchronization attacks by embedding the watermark periodically. We solve these two problems of the "self-reference" scheme. For the problem of low channel capacity, we propose to use a finite field sequence to partition a given block and M-ary modulation. For the other problem of high computational complexity, we introduce bit-wise computations in calculating the autocorrelation function. Also, we separate the estimation of a translation factor and affine transform factors, respectively, which results in performance improvement.

Original languageEnglish
Pages (from-to)323-333
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4675
DOIs
StatePublished - 2002 Jan 1
EventSecurity and Watermarking of Multimedia Contents IV - San Jose, CA, United States
Duration: 2002 Jan 212002 Jan 24

Fingerprint

Desynchronization
Image Watermarking
Image watermarking
Affine transforms
attack
Attack
Watermarking
Autocorrelation
autocorrelation
Computational complexity
channel capacity
Watermark
Transform
Autocorrelation Function
Channel capacity
Computational Complexity
embedding
periodic variations
partitions
estimating

Keywords

  • Affine transform attack
  • Cropping attack
  • Desynchronization attack
  • Finite field sequence
  • Watermarking

Cite this

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title = "Robust image watermarking scheme resilient to desynchronization attacks",
abstract = "Desynchronization attacks have been a particularly serious threat to watermarking applications. Therefore, there has been a concerted effort to solve this problem. It was Martin Kutter who first proposed to use watermark itself as a tool for estimating the affine transform parameters by its periodicity, what is called the {"}self-reference{"} scheme. His brilliant idea has led to many variations. This scheme is resistant to general geometric transform attacks and the {"}reference{"} is more difficult to destroy than templates. However, this scheme has some drawbacks such as relatively low capacity and high computational complexity, especially in calculating the autocorrelation function. In this paper, we propose a robust watermarking scheme particularly resilient to desynchronization attacks by embedding the watermark periodically. We solve these two problems of the {"}self-reference{"} scheme. For the problem of low channel capacity, we propose to use a finite field sequence to partition a given block and M-ary modulation. For the other problem of high computational complexity, we introduce bit-wise computations in calculating the autocorrelation function. Also, we separate the estimation of a translation factor and affine transform factors, respectively, which results in performance improvement.",
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Robust image watermarking scheme resilient to desynchronization attacks. / Choi, Changryoul; Jeong, Jechang.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4675, 01.01.2002, p. 323-333.

Research output: Contribution to journalConference article

TY - JOUR

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AU - Choi, Changryoul

AU - Jeong, Jechang

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AB - Desynchronization attacks have been a particularly serious threat to watermarking applications. Therefore, there has been a concerted effort to solve this problem. It was Martin Kutter who first proposed to use watermark itself as a tool for estimating the affine transform parameters by its periodicity, what is called the "self-reference" scheme. His brilliant idea has led to many variations. This scheme is resistant to general geometric transform attacks and the "reference" is more difficult to destroy than templates. However, this scheme has some drawbacks such as relatively low capacity and high computational complexity, especially in calculating the autocorrelation function. In this paper, we propose a robust watermarking scheme particularly resilient to desynchronization attacks by embedding the watermark periodically. We solve these two problems of the "self-reference" scheme. For the problem of low channel capacity, we propose to use a finite field sequence to partition a given block and M-ary modulation. For the other problem of high computational complexity, we introduce bit-wise computations in calculating the autocorrelation function. Also, we separate the estimation of a translation factor and affine transform factors, respectively, which results in performance improvement.

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