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Web based image authentication using invisible Fragile watermark

01 May 2001-pp 31-34
TL;DR: A web based image authentication method based in digital watermarking can provide more controls to image owners and conveniences to clients who want to get authenticity of image by integrating benefits of using Internet to the watermark system.
Abstract: The demand of security is getting higher in these days due to easy reproduction of digitally created multimedia data. Digital watermark is the emerging technique to embed secret information into content for copyright protection and authentication. Watermark is embedded within an image that alteration and modification to the watermarked image can be detected in a fragile watermark system. Watermark detection is blind that does not require an original image and it is invisible to avoid revealing secret information to malicious attackers. A web based image authentication method based in digital watermarking is described in this paper. It can provide more controls to image owners and conveniences to clients who want to get authenticity of image by integrating benefits of using Internet to the watermark system.
Citations
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Book ChapterDOI
14 Sep 2005
TL;DR: A three models of a Robust-Fragile Dual watermarking system are proposed for the proof of ownership and image authentication and it gives satisfactory results in the three models for robustness and fragility and data payload.
Abstract: The evolution for image manipulation tools and the wide distribution of images through the internet have led to the need for image copyright protection and forgery detection tools. In this paper a three models of a Robust-Fragile Dual watermarking system are proposed for the proof of ownership and image authentication. The proposed system has two main stages the embedding stage and the extraction stage. The embedding of the watermarks, which are the biometric signature for the image's owner, is done in the DCT domain of the cover image. The proposed system with its three models is tested against attacks and it gives satisfactory results in the three models for robustness and fragility and data payload.

20 citations

Book ChapterDOI
09 Mar 2013
TL;DR: This paper presents an effective self-embedding pixel wise fragile watermarking scheme for image content authentication along with tampered region localization capability that has very high fragility and fidelity.
Abstract: This paper presents an effective self-embedding pixel wise fragile watermarking scheme for image content authentication along with tampered region localization capability. In this approach the watermark is generated from the five most significant bits (MSBs) of each pixel using three different algorithms and embedded into the three least significant bits (LSBs) of the corresponding pixel in the host image. At the receiver side by comparing the recalculated and extracted LSBs, one can easily identify the tampered pixels of the watermarked image. Results of experiments demonstrate that the proposed scheme has very high fragility and fidelity.

19 citations


Cites background from "Web based image authentication usin..."

  • ...[8]....

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  • ...Fragile watermarking is categorized into two major classes pixel-wise fragile watermarking [1] [5] [8] [12] [13] and block-wise fragile watermarking [2] [3] [4] [7] [14]....

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Journal ArticleDOI
TL;DR: The proposed methodology is characterized as an authentication technique, since it does not rely on the original image to decide whether the watermarked image has been altered or not and at the same time it is able to detect and localize any possible malicious change.

18 citations

Book ChapterDOI
13 Dec 2008
TL;DR: A new technique for hiding the data of images is proposed to hide an image file entirely with in another image file keeping two considerations in mind which are Size and Degree of Security.
Abstract: In this paper, a new technique for hiding the data of images has been proposed This method is invented to hide an image file entirely with in another image file keeping two considerations in mind which are Size and Degree of Security At the source, the image which is to be hidden (target image) is encoded at the end of another image (cover image) Double layer security of the hidden image can be achieved (over the untrusted network) by; firstly, the starting point of encoding the image data is depended on the size of the images and it is stored within the encoded image at the end of its header information as a cipher text; secondly, the target image is hidden behind the cover image by following our encrypted image hiding technique

18 citations


Cites background from "Web based image authentication usin..."

  • ...Once image is distributed to externally, client can access to authentication web page to get verification of image [ 2 ]....

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References
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Journal ArticleDOI
TL;DR: This work explores both traditional and novel techniques for addressing the data-hiding process and evaluates these techniques in light of three applications: copyright protection, tamper-proofing, and augmentation data embedding.
Abstract: Data hiding, a form of steganography, embeds data into digital media for the purpose of identification, annotation, and copyright. Several constraints affect this process: the quantity of data to be hidden, the need for invariance of these data under conditions where a "host" signal is subject to distortions, e.g., lossy compression, and the degree to which the data must be immune to interception, modification, or removal by a third party. We explore both traditional and novel techniques for addressing the data-hiding process and evaluate these techniques in light of three applications: copyright protection, tamper-proofing, and augmentation data embedding.

3,037 citations

Proceedings ArticleDOI
13 Nov 1994
TL;DR: The paper discusses the feasibility of coding an "undetectable" digital water mark on a standard 512/spl times/512 intensity image with an 8 bit gray scale, capable of carrying such information as authentication or authorisation codes, or a legend essential for image interpretation.
Abstract: The paper discusses the feasibility of coding an "undetectable" digital water mark on a standard 512/spl times/512 intensity image with an 8 bit gray scale. The watermark is capable of carrying such information as authentication or authorisation codes, or a legend essential for image interpretation. This capability is envisaged to find application in image tagging, copyright enforcement, counterfeit protection, and controlled access. Two methods of implementation are discussed. The first is based on bit plane manipulation of the LSB, which offers easy and rapid decoding. The second method utilises linear addition of the water mark to the image data, and is more difficult to decode, offering inherent security. This linearity property also allows some image processing, such as averaging, to take place on the image, without corrupting the water mark beyond recovery. Either method is potentially compatible with JPEG and MPEG processing. >

1,407 citations

Journal ArticleDOI

1,220 citations

Journal ArticleDOI
TL;DR: It is argued that steganography by itself does not ensure secrecy, but neither does simple encryption, and if these methods are combined, however, stronger encryption methods result.
Abstract: Steganography is the art of hiding information in ways that prevent the detection of hidden messages. It includes a vast array of secret communications methods that conceal the message's very existence. These methods include invisible inks, microdots, character arrangement, digital signatures, covert channels, and spread spectrum communications. Steganography and cryptography are cousins in the spycraft family: cryptography scrambles a message so it cannot be understood while steganography hides the message so it cannot be seen. In this article the authors discuss image files and how to hide information in them, and discuss results obtained from evaluating available steganographic software. They argue that steganography by itself does not ensure secrecy, but neither does simple encryption. If these methods are combined, however, stronger encryption methods result. If an encrypted message is intercepted, the interceptor knows the text is an encrypted message. But with steganography, the interceptor may not know that a hidden message even exists. For a brief look at how steganography evolved, there is included a sidebar titled "Steganography: Some History."

644 citations

Proceedings ArticleDOI
16 Sep 1996
TL;DR: The idea of signature based authentication is extended to video, and a system to generate signatures for video sequences is presented, which allows smaller segments of the secured video to be verified as unmanipulated.
Abstract: A methodology for designing content based digital signatures which can be used to authenticate images is presented. A continuous measure of authenticity is presented which forms the basis of this methodology. Using this methodology signature systems can be designed which allow certain types of image modification (e.g. lossy compression) but which prevent other types of manipulation. Some experience with content based signatures is also presented. The idea of signature based authentication is extended to video, and a system to generate signatures for video sequences is presented. This signature also allows smaller segments of the secured video to be verified as unmanipulated.

615 citations