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

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

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.

Suggested Citation

  • Lu-Ting Ko & Jwu-E Chen & Yaw-Shih Shieh & Massimo Scalia & Tze-Yun Sung, 2012. "A Novel Fractional-Discrete-Cosine-Transform-Based Reversible Watermarking for Healthcare Information Management Systems," Mathematical Problems in Engineering, Hindawi, vol. 2012, pages 1-17, February.
    • Handle: RePEc:hin:jnlmpe:757018
    DOI: 10.1155/2012/757018
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