Robust watermarking and compression for medical images based on genetic algorithms

Document Type

Conference Proceeding

Publication Date

10-14-2005

Abstract

A ROI (region of interest) of a medical image is an area including important information and must be stored without any distortion. In order to achieve optimal compression as well as satisfactory visualization of medical images, we compress the ROI by lossless compression, and the rest by lossy compression. Furthermore, security is an important issue in web-based medical information system. Watermarking skill is often used for protecting medical images. In this paper, we present a robust technique embedding the watermark of signature information or textual data around the ROI of a medical image based on genetic algorithms. A fragile watermark is adopted to detect any unauthorized modification. The embedding of watermark in the frequency domain is more difficult to be pirated than in spatial domain. © 2005 Elsevier Inc. All rights reserved.

Identifier

24144463679 (Scopus)

Publication Title

Information Sciences

External Full Text Location

https://doi.org/10.1016/j.ins.2005.01.013

ISSN

00200255

First Page

200

Last Page

216

Issue

3

Volume

175

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