Secure discrete cosine transform based technique for recoverable tamper proofing

Hung, Kuo-Lung; Chang, Chin‐Chen; Chen, Tung-Shou

doi:10.1117/1.1391435

Cited by 9 publications

(5 citation statements)

References 9 publications

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“…The embedded authentication watermarks are also used as recovery watermarks. Due to the aforementioned reason, Li et al [11,21] utilized the DWT technique to extract image information from low-frequency coefficients and embedded the information in mid-frequency components for tamper detection and recovery. In [43], the authors presented a semi-fragile watermarking method for the automatic authentication and restoration of digital image content.…”

Section: Related Workmentioning

confidence: 99%

“…For semi-fragile self-recoverable watermarking, some popular schemes have been developed [3,4,11,15,21,28,33,43]. These schemes can be classified into two categories based on the methods and functionalities of embedded watermarks.…”

Section: Related Workmentioning

confidence: 99%

“…If a watermarked image suffers from modification, the self-recoverable watermarking scheme can localize the tampered region and recover the region by using hidden information in the image [3,4,9,11,12,14,15,18,19,21,22,27,28,31,33,42,43]. The self-recoverable fragile watermarking scheme does not need to tolerate content-preservation manipulations.…”

Section: Introductionmentioning

confidence: 99%

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Semi-fragile self-recoverable watermarking algorithm based on wavelet group quantization and double authentication

Zhang

Liu

et al. 2014

Multimed Tools Appl

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Semi-fragile self-recoverable watermarking algorithms are important to meet various requirements such as security, robustness, localization, and image recovery. However, current approaches are not adequate for this importance. Thus, we propose a novel semi-fragile and self-recoverable watermarking algorithm based on a group quantization and double authentication method. In the proposed algorithm, a target image is first split into 16×16 image blocks. For each image block, a five-bit authentication watermark is generated from the first-order statistical moment of the block and then is embedded into the mid-frequency band of another image block by a novel groupbased wavelet quantization method. With the generated watermarks, image security is enhanced by randomly permuting coefficients among a group and image robustness is improved by embedding the watermark in the largest coefficient inside a sub-group by significant difference parity quantization. The proposed double authentication ring structure effectively improves the image localization accuracy. Recovered image is a better approximate to the original image. Experimental comparisons of ours with other algorithms shows the effectiveness of the proposed self-recoverable and semi-fragile watermarking algorithm.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Semi-fragile self-recoverable watermarking algorithm based on wavelet group quantization and double authentication

Zhang

Liu

et al. 2014

Multimed Tools Appl

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“…20 • Independently authenticated algorithms receive validation based on an image-independent authentication sequence, as in the methods of Eggers,7,21 Fridrich, 16 Lin, Podilchuk, and Delp, 9 Queluz and Lamy, 22,23 Kundur and Hatzinakos, 24,25 Lan, Mansour, and Tewfik, 26 and Gwo, Lu, and Liao. 27 We plan to present a comparative assessment of the statistically authenticated, oblivious, semifragile watermarking techniques.…”

Section: -11mentioning

confidence: 99%

“…It is based on two properties of the DCT coefficient quantization, namely, 1. order invariance, where the order relation of DCT coefficient pairs remains unaltered after JPEG processing, if not set equal; and 2. coefficient invariance, where if a coefficient is quantized to an integer multiple of the step size, its value is not changed after JPEG compression with a smaller step size. A parallel algorithm is that of Hung, Cheng, and Chen, 20 which uses the block vector quantization ͑VQ͒ indices for authentication data. This algorithm, however, results in a large payload of VQ coefficients, and its performance turns out to be rather poor.…”

Section: Lin-chang Algorithmmentioning

confidence: 99%

Comparative evaluation of semifragile watermarking algorithms

Ekici

Sankur

Coskun

et al. 2004

J. Electron. Imaging

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Abstract. Semifragile watermarking techniques aim to prevent tampering and fraudulent use of modified images. A semifragile watermark monitors the integrity of the content of the image but not its numerical representation. Therefore, the watermark is designed so that the integrity is proven if the content of the image has not been tampered with, despite some mild processing on the image. However, if parts of the image are replaced with the wrong key or are heavily processed, the watermark information should indicate evidence of forgery. We compare the performance of eight semifragile watermarking algorithms in terms of their miss probability under forgery attack, and in terms of false alarm probability under nonmalicious signal processing operations that preserve the content and quality of the image. We propose desiderata for semifragile watermarking algorithms and indicate the promising algorithms among existing ones.

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Recoverable Tamper Proofing Technique for Image Authentication Using Irregular Sampling Coding

Hung

Chang

Lecture Notes in Computer Science

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Secure discrete cosine transform based technique for recoverable tamper proofing

Cited by 9 publications

References 9 publications

Semi-fragile self-recoverable watermarking algorithm based on wavelet group quantization and double authentication

Semi-fragile self-recoverable watermarking algorithm based on wavelet group quantization and double authentication

Comparative evaluation of semifragile watermarking algorithms

Recoverable Tamper Proofing Technique for Image Authentication Using Irregular Sampling Coding

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