Medical Image Watermarking with Tamper Detection and Recovery
Medical Image Watermarking with Tamper Detection and Recovery
This paper discussed security of medical images and reviewed some work done regarding them. A fragile watermarking scheme was then proposed that could detect tamper and subsequently recover the image. Our scheme required a secret key and a public chaotic mixing algorithm to embed and recover a tampered image. The scheme was also resilient to VQ attack. The purposes were to verify the integrity and authenticity of medical images. We used 800 x 600 x 8 bits ultrasound (US) greyscale images in our experiment. We tested our algorithm for up to 50% tampered block and obtained 100% recovery for spread-tampered block.
- University of Technology Malaysia Malaysia
- International Islamic University Malaysia Malaysia
Diagnostic Imaging, Biomedical Engineering, Humans, Algorithms, Computer Security, Security Measures
Diagnostic Imaging, Biomedical Engineering, Humans, Algorithms, Computer Security, Security Measures
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