Security Enhancement of Medical Imaging via Imperceptible and Robust Watermarking

Manuel CEDILLO HERNANDEZ  Antonio CEDILLO HERNANDEZ  Francisco GARCIA UGALDE  Mariko NAKANO MIYATAKE  Hector PEREZ MEANA  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E98-D   No.9   pp.1702-1705
Publication Date: 2015/09/01
Publicized: 2015/05/28
Online ISSN: 1745-1361
DOI: 10.1587/transinf.2015EDL8016
Type of Manuscript: LETTER
Category: Information Network
Keyword: 
digital watermarking,  medical imaging,  authentication,  

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Summary: 
In this letter we present an imperceptible and robust watermarking algorithm that uses a cryptographic hash function in the authentication application of digital medical imaging. In the proposed scheme we combine discrete Fourier transform (DFT) and local image masking to detect the watermark after a geometrical distortion and improve its imperceptibility. The image quality is measured by metrics currently used in digital image processing, such as VSNR, SSIM and PSNR.