Reversible and recoverable authentication method for demosaiced images using adaptive coding technique

Zhou, Xiaoyu; Hong, Wien; Weng, Shaowei; Chen, Tung-Shou; Chen, Jeanne

doi:10.1016/j.jisa.2020.102629

Cited by 2 publications

(3 citation statements)

References 14 publications

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“…The fragile watermarking technique can be applied to images in spatial [6][7][8][9][10] or compressed [11][12][13] domains. In the spatial domain, data are embedded directly by modifying pixel values.…”

Section: Introductionmentioning

confidence: 99%

An Authentication Method for AMBTC Compressed Images Using Dual Embedding Strategies

et al. 2023

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In this paper, we proposed an efficient authentication method with dual embedment strategies for absolute moment block truncation coding (AMBTC) compressed images. Prior authentication works did not take the smoothness of blocks into account and only used single embedding strategies for embedment, thereby limiting image quality. In the proposed method, blocks were classified as either smooth or complex ones, and dual embedding strategies used for embedment. Respectively, bitmaps and quantized values were embedded with authentication codes, while recognizing that embedment in bitmaps of complex blocks resulted in higher distortion than in smooth blocks. Therefore, authentication codes were embedded into bitmaps of smooth blocks and quantized values of complex blocks. In addition, our method exploited to-be-protected contents to generate authentication codes, thereby providing satisfactory detection results. Experimental results showed that some special tampering, undetected by prior works, were detected by the proposed method and the averaged image quality was significantly improved by at least 1.39 dB.

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Section: Introductionmentioning

confidence: 99%

An Authentication Method for AMBTC Compressed Images Using Dual Embedding Strategies

et al. 2023

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“…Semi-fragile watermarking is not sensitive to minor image modifications (e.g., JPEG compression), but is sensitive to malicious tampering [6]. In contrast, fragile watermarking is sensitive to any tampering [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25], which protects the image to the largest extent. For the fragile watermarking method, since the embedded authentication code is fragile, tampering with the image will also destroy the authentication code.…”

Section: Introductionmentioning

confidence: 99%

“…This technique requires embedding the authentication code into the image, and the quality of the image will be degraded inevitably. Nevertheless, it has a better detection effect and some of methods [9]- [12] can also recover the tampered regions roughly.…”

Section: Introductionmentioning

confidence: 99%

An AMBTC Authentication Scheme With Recoverability Using Matrix Encoding and Side Match

Hong

Lou

et al. 2021

IEEE Access

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This paper presents an authentication scheme with recoverability based on Absolute moment block truncation coding (AMBTC). Previous works do not take into account characteristics of the AMBTC compressed codes. Therefore, the qualities of marked and recovered images are not satisfactory. In this paper, we generate the recovery codes according to block similarities. The recovery codes are scrambled and stored in the bitmaps of smooth blocks using Matrix encoding. The bits in the bitmap are flipped to obtain a set of authentication codes. The code that causes the least error is embedded into the quantization values using the adaptive pixel pair matching technique (APPM). For those complex blocks, the authentication codes are generated from the bitmaps, and are embedded into the quantization values. After authenticating, the tampered blocks are recovered by untampered ones with the same cluster information. Some blocks that cannot be recovered in the previous stage are recovered by using the Side match technique. The experimental results show that our method provides better image quality and recoverability than prior works.

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Reversible and recoverable authentication method for demosaiced images using adaptive coding technique

Cited by 2 publications

References 14 publications

An Authentication Method for AMBTC Compressed Images Using Dual Embedding Strategies

An Authentication Method for AMBTC Compressed Images Using Dual Embedding Strategies

An AMBTC Authentication Scheme With Recoverability Using Matrix Encoding and Side Match

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