Publication IEICE TRANSACTIONS on Information and SystemsVol.E98-DNo.9pp.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.
