A Novel Fractional-Discrete-Cosine-Transform-Based Reversible Watermarking for Healthcare Information Management Systems

Lu-Ting Ko, Jwu-E Chen, Yaw-Shih Shieh, Massimo Scalia and Tze-Yun Sung

Mathematical Problems in Engineering, 2012, vol. 2012, 1-17

Abstract:

Digital watermarking is a good tool for healthcare information management systems. The well-known quantization-index-modulation- (QIM-) based watermarking has its limitations as the host image will be destroyed; however, the recovery of medical image is essential to avoid misdiagnosis. A transparent yet reversible watermarking algorithm is required for medical image applications. In this paper, we propose a fractional-discrete-cosine-transform- (FDCT-) based watermarking to exactly reconstruct the host image. Experimental results show that the FDCT-based watermarking is preferable to the QIM-based watermarking for the medical image applications.

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:757018

DOI: 10.1155/2012/757018

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