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This paper presents a secure image authentication scheme for tamper localization and recovery at pixel level. The proposed scheme encrypts the watermark comprising tamper localization code and self-recovery code using chaotic sequence to ensure security. ...

Aiming at some shortcomings of current digital watermarking algorithms, a color image double watermarking algorithm based on content authentication and machine learning is proposed in this paper. Firstly, the algorithm combines discrete wavelet ...

A fragile watermarking algorithm based on multiple watermarking is proposed. Watermarking generation: First, divide the image into block, and generate an authentication watermarking and two average watermarking based on their average value. Then, use ...

Three-dimensional (3D) objects have been used in machine design, architecture design, entertainment, cultural heritage, medical field, etc. during the last two decades. Increasing trends of 3D objects attract the researcher, academician, and industry ...

At present, governments and private business operations are highly dependent on relational data applications such as bank accounts, citizen registration, etc. These relational data dependent operations require reliable integrity protection while utilising ...

Fragile watermarking schemes are very common in practice for tamper detection and image authentication. In this paper, we propose a new fragile watermarking scheme to detect common image tampering operations such as copy and paste attack and image ...

The preservation of high peak signal-to-noise ratio of the watermarked image is required in some applications. The chaos-based fragile watermarking proposed by Rawat et al. in 2011 can meet this requirement, for only one LSB plane of the original image ...

Watermarking algorithms have been widely applied to the field of image forensics recently. One of these very forensic applications is the protection of images against tampering. For this purpose, we need to design a watermarking algorithm fulfilling two ...

In this paper, an effective self-embedding fragile watermarking method for tampering detection and content recovery is proposed. The halftone mechanism and the extension operation are utilized to generate recovery bits from the resized original image. ...

In recent years, various fragile watermarking schemes have been proposed for image authentication and tamper detection. In this paper, a chaotic map based watermarking scheme is proposed. The periodic nature of the Arnold's cat chaotic map is researched ...

Fragile watermarking has attracted a lot of attention in the last decade. An interesting approach, presented in 2011 by Lin et al., results in very high quality of the watermarked images. However, after a thorough examination of the paper, a few ...

In this paper, a new spherical coordinate based fragile watermarking scheme is proposed. At first, the three dimensional (3D) model is translated from the Cartesian coordinate system to the spherical coordinate system. Then the quantization index ...

Combined average encoding with vector quantization (VQ) encoding, a new self-embedding fragile watermarking scheme is proposed. To take into account watermark payload, localization accuracy and recovery quality, the 6-bit average-watermark of a 2×2 ...

Web Page Watermarking is a research branch of the text watermarking. It is relatively difficult to embed the watermarking into the Web Page. For the particularity of the Web Page, this paper proposes an effectively improved Web Page Watermarking program ...

There have recently been serious social issues involved in multimedia signal processing such as malicious attacks and tampering with digital audio/speech signals. Fragile speech watermarking is a technique that enables the detection of tampering with ...

The increased use of multimedia applications pose more problems concerning the preservation of confidentiality and authenticity of the transmission of digital data. These data, in particular the images should be protected from tampering. The solution is ...

In this paper, we propose a fragile watermarking scheme in wavelet domain which is sensitive to all kinds of modifications and has the ability to localize the tampered regions. The proposed scheme is a key-dependent, content based and non-deterministic ...

To take into account security, invisibility and recovery quality, this work proposes a variable-payload self-recovery fragile watermarking scheme. For each block, the watermarks include the total-watermark with variable number of bits and the basic-...

Digital watermarking is an efficient method to protect multimedia documents. Robust watermarks, which survive to any change or alteration of the protected documents, are typically used for copyright protection. Fragile watermarks, which are vulnerable ...

Fragile watermarking is applied to protect the content integrity of digital images. The main concerns related to watermarking include retaining the quality of the watermarked image and retaining the ability to detect whether any manipulation has ...