Robust and Imperceptible Hybrid Watermarking Techniques for Medical Images

2017 ◽  
pp. 61-93 ◽  
Author(s):  
Amit Kumar Singh ◽  
Basant Kumar ◽  
Ghanshyam Singh ◽  
Anand Mohan
2018 ◽  
Vol 8 (9) ◽  
pp. 1857-1864
Author(s):  
V. Kavitha ◽  
C. Palanisamy ◽  
T. Sureshkumar

A hybrid watermarking technique using wavelet and Shearlet transform is proposed in this paper. The DWT variant Daub4 transform model is applied on the medical image to generate different frequency sub-bands. The HL and LH sub-bands which are resistant to compression attacks are chosen for second level of transformation, a DST variant 'Cone adaptive Shearlet transform' technique is used to calculate the Shearlet coefficients of the selected sub-bands. By using SVD on the Shearlet coefficients, the singular values of watermark image are embedded into the singular values of the host image. The proposed approach is examined using three medical images and a watermark image. The experimental results show that the proposed approach is robust against JPEG compression, Geometric and Noise attacks.


2011 ◽  
Vol 88 (10) ◽  
pp. 2057-2071 ◽  
Author(s):  
Nisar Ahmed Memon ◽  
Asmatullah Chaudhry ◽  
Mushtaq Ahmad ◽  
Zulfiqar Ali Keerio

2017 ◽  
Vol 77 (10) ◽  
pp. 12493-12518 ◽  
Author(s):  
Roopam Bamal ◽  
Singara Singh Kasana

EMJ Radiology ◽  
2020 ◽  
Author(s):  
Filippo Pesapane

Radiomics is a science that investigates a large number of features from medical images using data-characterisation algorithms, with the aim to analyse disease characteristics that are indistinguishable to the naked eye. Radiogenomics attempts to establish and examine the relationship between tumour genomic characteristics and their radiologic appearance. Although there is certainly a lot to learn from these relationships, one could ask the question: what is the practical significance of radiogenomic discoveries? This increasing interest in such applications inevitably raises numerous legal and ethical questions. In an environment such as the technology field, which changes quickly and unpredictably, regulations need to be timely in order to be relevant.  In this paper, issues that must be solved to make the future applications of this innovative technology safe and useful are analysed.


2012 ◽  
Vol 1 (2) ◽  
pp. 27-35 ◽  
Author(s):  
V. Kalpana ◽  
T. Surendra Nath ◽  
V. Vijaya Kishore

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