Hybrid DCT-SVD Based Digital Watermarking Scheme with Chaotic Encryption for Medical Images

In this work we propose a Repetitive Index Modulation (RIM) based digital watermarking scheme for authentication and integrity verification of medical images. Exploiting the fact that many types of medical images have significant background areas and medically meaningful Regions of Interest (ROI), which represent the actual contents of the images, the scheme uses the contents of the ROI to create a content-dependent watermark and embeds the watermark in the background areas. Therefore when any pixel of the ROI is attacked, the watermark embedded in the background areas will be different from the watermark calculated according to the attacked contents, thus raising alarm that the image in question is inauthentic. Because the creation of the watermark is content-dependent and the watermark is only embedded in the background areas, the proposed scheme can actually protect the content/ROI without distorting it.

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Genetic Algorithm for Selecting Relevant Regions in Digital Watermarking Scheme for 2D/3D Medical Images

Intelligent Decision Technologies 2019 - Smart Innovation, Systems and Technologies ◽

10.1007/978-981-13-8303-8_7 ◽

2019 ◽

pp. 77-87

Author(s):

Margarita Favorskaya ◽

Eugenia Savchina

Keyword(s):

Genetic Algorithm ◽

Digital Watermarking ◽

Medical Images ◽

Watermarking Scheme

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Digital Watermarking Scheme Based on Chaotic Encryption and DWT

2009 International Conference on Information Engineering and Computer Science ◽

10.1109/iciecs.2009.5366119 ◽

2009 ◽

Author(s):

Ke Yin ◽

Zhi-quan Wang ◽

Chang Liu ◽

Ke-xin Yin

Keyword(s):

Digital Watermarking ◽

Chaotic Encryption ◽

Watermarking Scheme

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Medical Images Authentication through Repetitive Index Modulation Based Watermarking

International Journal of Digital Crime and Forensics ◽

10.4018/jdcf.2009062403 ◽

2009 ◽

Vol 1 (4) ◽

pp. 32-39 ◽

Cited By ~ 2

Author(s):

Chang-Tsun Li ◽

Yue Li

Keyword(s):

Digital Watermarking ◽

Medical Images ◽

Regions Of Interest ◽

Integrity Verification ◽

The Creation ◽

Watermarking Scheme ◽

Index Modulation

In this work we propose a Repetitive Index Modulation (RIM) based digital watermarking scheme for authentication and integrity verification of medical images. Exploiting the fact that many types of medical images have significant background areas and medically meaningful Regions Of Interest (ROI), which represent the actual contents of the images, the scheme uses the contents of the ROI to create a content-dependent watermark and embeds the watermark in the background areas. Therefore when any pixel of the ROI is attacked, the watermark embedded in the background areas will be different from the watermark calculated according to the attacked contents, thus raising alarm that the image in question is inauthentic. Because the creation of the watermark is content-dependent and the watermark is only embedded in the background areas, the proposed scheme can actually protect the content/ROI without distorting it.

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Evaluvation of Multiresolution Watermarking Algorithm

International Journal of Advanced Research in Computer Science and Software Engineering ◽

10.23956/ijarcsse.v7i8.29 ◽

2017 ◽

Vol 7 (8) ◽

pp. 85

Author(s):

S. Thabasu Kannan ◽

S. Azhagu Senthil

Keyword(s):

Digital Watermarking ◽

Wavelet Transformation ◽

Signal To Noise Ratio ◽

Rapid Development ◽

Threshold Value ◽

Discrete Wavelet ◽

Digital Production ◽

Common Framework ◽

Sampling Operation ◽

Watermarking Scheme

Now-a-days watermarking plays a pivotal role in most of the industries for providing security to their own as well as hired or leased data. This paper its main aim is to study the multiresolution watermarking algorithms and also choosing the effective and efficient one for improving the resistance in data compression. Computational savings from such a multiresolution watermarking framework is obvious. The multiresolutional property makes our watermarking scheme robust to image/video down sampling operation by a power of two in either space or time. There is no common framework for multiresolutional digital watermarking of both images and video. A multiresolution watermarking based on the wavelet transformation is selected in each frequency band of the Discrete Wavelet Transform (DWT) domain and therefore it can resist the destruction of image processing. The rapid development of Internet introduces a new set of challenging problems regarding security. One of the most significant problems is to prevent unauthorized copying of digital production from distribution. Digital watermarking has provided a powerful way to claim intellectual protection. We proposed an idea for enhancing the robustness of extracted watermarks. Watermark can be treated as a transmitted signal, while the destruction from attackers is regarded as a noisy distortion in channel. For the implementation, we have used minimum nine coordinate positions. The watermarking algorithms to be taken for this study are Corvi algorithm and Wang algorithm. In all graph, we have plotted X axis as peak signal to noise ratio (PSNR) and y axis as Correlation with original watermark. The threshold value ά is set to 5. The result is smaller than the threshold value then it is feasible, otherwise it is not.

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