A DWT-DCT based digital watermarking technique

Emek, S.; Pazarcı, Melih; Yücel, Mehmet Erkin

doi:10.1109/siu.2004.1338250

Cited by 5 publications

(5 citation statements)

References 9 publications

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“…The copyright information is contained in the watermarked substance. The hidden data for such purposes are referred to as a watermark and the content can be an image, audio, or some other type of media in any of the formats available [15]. On that account, digital watermarking has been chosen for its wide range of applications in the field of computer science, cryptography, signal processing, and communications [16].…”

Section: Digital Watermarking Conceptmentioning

confidence: 99%

An Efficient Watermarking Approach Based on LL and HH Edges of DWT–SVD

Yasmeen

Uddin

2021

SN COMPUT. SCI.

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Digital watermarking is playing a vital role in the improvement of authentication, security, and copyright protection in today’s digital transformation. The performance of this technique is shown to be impressive around the globe. Text, audio, video, and image data are acted as watermarks in the digital platform. In this article, a hybrid watermarking scheme is proposed to furnish the robustness and protection of digital data. This hybrid scheme is a form of discrete wavelet transform (DWT) and singular value decomposition (SVD). The embedding and extracting features are carried out through multi-level operations of DWT and SVD. Various attacks are added to the proposed method to justify the robustness of the watermark. In the end, the suggested approach is contrasted with existing methods to confirm the supremacy.

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Section: Digital Watermarking Conceptmentioning

confidence: 99%

An Efficient Watermarking Approach Based on LL and HH Edges of DWT–SVD

Yasmeen

Uddin

2021

SN COMPUT. SCI.

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“…A cascade DWT‐DCT image watermarking approach was proposed by Emek and Pazarci . They decomposed the host image into four levels in DWT using Daubechies bi‐orthogonal filter.…”

Section: Literature Reviewmentioning

confidence: 99%

A hybrid digital image watermarking algorithm based on DCT‐DWT and auto‐thresholding

Al-Maweri

Adnan

Ramli

et al. 2015

Security Comm Networks

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Multimedia evolution in the current era has given digital images security and privacy a great concern. Digital image watermarking is used to produce highly protected images in order to promote secure and protected exchange over the network and between individuals. In this paper, a robust algorithm for digital image watermarking is proposed based on a hybrid watermarking and auto‐thresholding. This algorithm is designed to embed the watermarks in the transform domain using both discrete cosine transform and discrete wavelet transform (DCT‐DWT). Image is transformed to DCT then to DWT and the algorithm trains itself to choose the best embedding threshold. This threshold must satisfy a performance trade‐off and at the same time attains high imperceptibility and robustness. The algorithm performance is evaluated under various attacks and showed high‐performance level. Imperceptibility evaluation showed peak signal‐to‐noise ratio above 42.96 dB and similarity percentage above 99.27%. The algorithm proved high resistance to noising, scaling, cropping, rotation, and compression attacks. Copyright © 2015 John Wiley & Sons, Ltd.

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“…In the frequency domain, the amount of asked calculation, which performs a transformation on a whole image, is important. That's why; we divide our image with size 256x256 pixels in 1024 blocks with size 8x8 pixels; and every block will be tattooed [EMEK and. Pazarcı (2005)].…”

Section: Insertion Diagrammentioning

confidence: 99%

Security of the Medical Media Using a Hybrid and Multiple Watermark Technique

Kallel

Bouhlel

Lapayre

2011

Int. J. Image Grap.

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This paper proposes a new approach of multiple and hybrid watermarks using two linked fields of insertion. This approach associates two different series of marks: one is sturdy guaranteeing the supervision of diffused media through the network and testifying to the identity of the owner of the medical image; the other series of marks, which is frail, insuring the integrity, the trace, and the archives of the medical diagnoses. In fact, this approach allows us to be benefited from the advantages of different insertion spaces (spatial and frequency field) and kind of two different fields of watermark. In the spatial field, the diagnosis of the doctor (frail marks) is inserted guaranteeing its records and its trace. In the frequency, the sturdy mark is inserted allowing to ensure the automatic control of the media through the network and testifying to the proprietor of the medical image.

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A DWT-DCT based digital watermarking technique

Cited by 5 publications

References 9 publications

An Efficient Watermarking Approach Based on LL and HH Edges of DWT–SVD

An Efficient Watermarking Approach Based on LL and HH Edges of DWT–SVD

A hybrid digital image watermarking algorithm based on DCT‐DWT and auto‐thresholding

Security of the Medical Media Using a Hybrid and Multiple Watermark Technique

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