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, Tze Yun Sung

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

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.

Original languageEnglish
Article number757018
JournalMathematical Problems in Engineering
Volume2012
DOIs
StatePublished - 2012

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