scholarly journals Reversible Watermarking Method with Low Distortion for the Secure Transmission of Medical Images

2022 ◽  
Vol 130 (3) ◽  
pp. 1309-1324
Author(s):  
Rizwan Taj ◽  
Feng Tao ◽  
Shahzada Khurram ◽  
Ateeq Ur Rehman ◽  
Syed Kamran Haider ◽  
...  
Keyword(s):  
Medical Images ◽  
Reversible Watermarking ◽  
Low Distortion ◽  
Secure Transmission

A Methodological Evaluation of Crypto-Watermarking System for Medical Images

2016 ◽  
pp. 189-217
Author(s):  
Anna Babu ◽  
Sonal Ayyappan
Keyword(s):  
Medical Information ◽  
Medical Images ◽  
Secret Key ◽  
Encrypted Data ◽  
Number Of Patients ◽  
Detailed Assessment ◽  
Content Recovery ◽  
Secure Transmission ◽  
Methodological Evaluation

Health care institution demands exchange of medical images of number of patients to sought opinions from different experts. In order to reduce storage and for secure transmission of the medical images, Crypto-Watermarking techniques are adopted. The system is considered to be combinations of encryption technique with watermarking or steganography means adopted for safe transfer of medical images along with embedding of optional medical information. The Digital Watermarking is the process of embedding data to multimedia content. This can be done in spatial as well as frequency domain of the cover image to be transmitted. The robustness against attacks is ensured while embedding the encrypted data into transform domain, the encrypted data can be any secret key for the content recovery or patient record or the image itself. This chapter presents basic aspects of crypto-watermarking technique, as an application. It gives a detailed assessment on different approaches of crypto-watermarking for secure transmission of medical images and elaborates a case study on it.

Combining Digital Signature with Local Binary Pattern-Least Significant Bit Steganography Techniques for Securing Medical Images

2020 ◽  
Vol 10 (6) ◽  
pp. 1288-1293
Author(s):  
K. N. Madhusudhan ◽  
P. Sakthivel
Keyword(s):  
Digital Signature ◽  
Local Binary Pattern ◽  
Medical Images ◽  
Image Authentication ◽  
Reversible Watermarking ◽  
Cover Image ◽  
Least Significant Bit ◽  
New Approach ◽  
Different Types ◽  
Separate File

The image authentication is generally based on two different types of techniques: watermarking and digital signature. In watermarking methods, embedded watermarking is often imperceptible and it contains either a specific ID of producer or codes related to content that are used for authentication. Normally a separate file is stored, digital signature is a non-repudiation and encrypted version of the information extracted from the data. A digital signature can be attached to the data to prove the originality and integrity. The proposed work presents a new approach to steganography of medical images that uses modified Least Significant Bit (LSB) based on the Local Binary Pattern (LBP) pattern. As a first step, cover image has been divided as blocks of 3×3 non overlapping masks. Then, the pixel embedding position (clock wise or anti-clock wise) has to be identified using LBP operator. The value of the LBP operator determines how and where to embed secret image pixel. Later, using LSB method, pixel values will be embedded in the cover image pixel. In order to provide the integrity of the data, the proposed work also presents Reversible Watermarking (RW), a Digital Signature (DS) technique. The proposed algorithm of steganography experimented on few medical images and achieved better efficiency with respect to MSE and PSNR values and same is reported in this paper.

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