Multi watermarking algorithm based on DCT and hash functions for color satellite images

Kunhu, Alavi; Al-Ahmad, Hussain

doi:10.1109/innovations.2013.6544389

Cited by 16 publications

(5 citation statements)

References 5 publications

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“…As shown in Table 3, the superiority of our proposed method to [14, 17–19, 28] is its blindness. Furthermore, the advantage of our approach over [13, 15, 16, 20–22, 29, 41] is that they use a spatial domain and LSB method to embed the watermark information which might be changed by innocent image processing operations. As opposed to our generic construction, the methods of [24–26] also have limited applications such as GIS and colourful images.…”

Section: Experimental Results and Comparisonmentioning

confidence: 99%

“…In order to authenticate the images, some of these approaches need either the original embedded logo or the host image, hence they are non‐blind schemes [14, 16–19]. Some of them also use the spatial domain to authenticate the image [13–16, 20–22]; however, this domain is too sensitive and an image which is changed unintentionally or by innocent image processing operations is detected as corrupt. Therefore these techniques are not able to distinguish between intentional and unintentional manipulations [18].…”

Section: Introductionmentioning

confidence: 99%

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Blind multipurpose watermarking with insertion of a single watermark: a generic construction based on verifiable threshold secret sharing

Sheidani

Eslami

2020

IET image process

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Currently, the existing literature on multipurpose watermarking employs multiple watermarks for simultaneous achieving of multiple security objectives. This approach can be problematic since a watermark targeting tampers might fail to detect tampering of another watermark inserted for copyright violation. Moreover, most of the current schemes follow a non‐blind approach where the original watermark is needed for authentication. A question that naturally arises is whether multipurpose watermarking can be realised with the insertion of a single watermark in a blind way or not. The goal of the authors study is to provide an affirmative answer to this important question. They show how a cryptographic primitive called verifiable threshold secret sharing can be used to come up with a generic construction for blind multipurpose watermarking which inserts a single watermark into the host image for simultaneous achieving of copyright protection, authentication, and tamper localisation. The generic property of the proposed scheme provides flexibility for choosing the embedding/extraction of the watermark based on the desired level of fidelity, robustness and capacity. Experimental results are provided to confirm the superiority of their proposed technique as compared to existing approaches.

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Section: Experimental Results and Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Blind multipurpose watermarking with insertion of a single watermark: a generic construction based on verifiable threshold secret sharing

Sheidani

Eslami

2020

IET image process

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“…In addition, it is noticed that the simulated results are exactly the same in both situations; RGB-green channel and YC b C r -Y channel. For an instance, if we shift the multi-watermarked image by (18,20) pixels, the watermark might be retrieved when ( , ). The proposed fragile hash framework (encoder and decoder) is designed to check the authenticity of DubaiSat-1 satellite imagery.…”

Section: Results and Analysismentioning

confidence: 99%

Discrete cosine transform and hash functions toward implementing a (robust-fragile) watermarking scheme

Mansoori

Kunhu

2013

SPIE Proceedings

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This paper proposes a blind multi-watermarking scheme based on designing two back-to-back encoders. The first encoder is implemented to embed a robust watermark into remote sensing imagery by applying a Discrete Cosine Transform (DCT) approach. Such watermark is used in many applications to protect the copyright of the image. However, the second encoder embeds a fragile watermark using 'SHA-1' hash function. The purpose behind embedding a fragile watermark is to prove the authenticity of the image (i.e. tamper-proof). Thus, the proposed technique was developed as a result of new challenges with piracy of remote sensing imagery ownership. This led researchers to look for different means to secure the ownership of satellite imagery and prevent the illegal use of these resources. Therefore, Emirates Institution for Advanced Science and Technology (EIAST) proposed utilizing existing data security concept by embedding a digital signature, "watermark", into DubaiSat-1 satellite imagery. In this study, DubaiSat-1 images with 2.5 meter resolution are used as a cover and a colored EIAST logo is used as a watermark. In order to evaluate the robustness of the proposed technique, a couple of attacks are applied such as JPEG compression, rotation and synchronization attacks. Furthermore, tampering attacks are applied to prove image authenticity. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 08/25/2015 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Proc. of SPIE Vol. 8895 889504-4 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 08/25/2015 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx

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“…Peng et al [13] proposed a multipurpose watermarking scheme, in which the robust watermark and the fragile watermark are embedded in the feature and nonfeature points, respectively, and the watermarks are mutually independent. Kunhu and Al-Ahmad [14] proposed a multiwatermarking algorithm which embeds the robust watermark in the DCT and hash authentication code in the spatial domain. Refs.…”

Section: Introductionmentioning

confidence: 99%

“…Refs. [13,14] are suitable for color images. However, they are not applicable to a wide range of color images.…”

Section: Introductionmentioning

confidence: 99%

A Novel Comprehensive Watermarking Scheme for Color Images

Duan

Wang

Liu

et al. 2020

Security and Communication Networks

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Watermarking technology is commonly used to solve various problems in digital rights management and multimedia security. If a watermarking scheme with multiple purposes applies single method, it will easily cause the destruction of the hidden messages in particular attacks. For the copyright protection and tamper detection of color images, this research proposed a robust-fragile watermarking scheme. The two different embedding schemes embed the watermark into the R layer and G layer after NSST (nonsubsampled shearlet transform) and DWT (discrete wavelet transform) transformation. The hash sequence generated by the R layer and the G layer is served as fragile watermarks and is embedded into the B layer by the LSB (least significant bit) method. Finally, an improved rotation correction is applied to better extract the watermark under the rotation attack. Experimental results show that the proposed method is more accurate than the existing ones in terms of rotation angle correction and can effectively resist general attacks such as noise, filtering, and JEPG compression. Moreover, the proposed fragile watermark can locate the tamper position when malicious tamper occurs. Except cropping attack, the true-positive rate (TPR) reaches 1 for all attacks.

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Multi watermarking algorithm based on DCT and hash functions for color satellite images

Cited by 16 publications

References 5 publications

Blind multipurpose watermarking with insertion of a single watermark: a generic construction based on verifiable threshold secret sharing

Blind multipurpose watermarking with insertion of a single watermark: a generic construction based on verifiable threshold secret sharing

Discrete cosine transform and hash functions toward implementing a (robust-fragile) watermarking scheme

A Novel Comprehensive Watermarking Scheme for Color Images

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