A Novel Fractional Discrete Cosine Transform Based Reversible Watermarking for Biomedical Image Applications

Author

Ko, Lu-Ting ; Chen, Jwu-E ; Shieh, Yaw-Shih ; Sung, Tze-Yun

Author_Institution

Dept. of Electr. Eng., Nat. Central Univ., Chungli, Taiwan

fYear

2012

fDate

4-6 June 2012

Firstpage

36

Lastpage

39

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 biomedical image is essential to avoid misdiagnosis. A transparent yet reversible watermarking algorithm is required for biomedical 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 biomedical image applications.

Keywords

discrete cosine transforms; health care; image reconstruction; image watermarking; medical image processing; medical information systems; modulation; quantisation (signal); biomedical image application; biomedical image recovery; digital watermarking; fractional discrete cosine transform; healthcare information management system; host image reconstruction; quantization index modulation; reversible watermarking; Biomedical imaging; Discrete cosine transforms; Equations; Information management; Medical services; Quantization; Watermarking; Quantization index modulation (QIM); biomedical image applications; fractional discrete cosine transform (FDCT); healthcare information management systems; reversible watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer, Consumer and Control (IS3C), 2012 International Symposium on

Conference_Location

Taichung

Print_ISBN

978-1-4673-0767-3

Type

conf

DOI

10.1109/IS3C.2012.19

Filename

6228242