Block Based Medical Image Watermarking Technique for Tamper Detection and Recovery
ijcsi.org/papers/IJCSI-11-5-1-31-40.pdf 2014 In this paper, we propose a novel fragile block based medical image watermarking technique for embedding data of patient into medical image, verifying the integrity of ROI (Region of Interest), detecting the tampered blocks inside ROI and recovering origi...
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Zusammenfassung: | ijcsi.org/papers/IJCSI-11-5-1-31-40.pdf 2014 In this paper, we propose a novel fragile block based medical image
watermarking technique for embedding data of patient into medical image,
verifying the integrity of ROI (Region of Interest), detecting the tampered
blocks inside ROI and recovering original ROI with less size authentication and
recovery data and with simple mathematical calculations. In the proposed
method, the medical image is divided into three regions called ROI, RONI
(Region of Non Interest) and border pixels. Later, authentication data of ROI
and Electronic Patient Record (EPR) are compressed using Run Length Encoding
(RLE) technique and then embedded into ROI. Recovery information of ROI is
embedded inside RONI and information of ROI is embedded inside border pixels.
Results of experiments conducted on several medical images reveal that proposed
method produces high quality watermarked medical images, identifies tampered
areas inside ROI of watermarked medical images and recovers the original ROI. |
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DOI: | 10.48550/arxiv.1412.6143 |