Title :
Reversible watermarking for authentication of DICOM images
Author :
Zain, J.M. ; Baldwin, L.P. ; Clarke, M.
Author_Institution :
Department of Information Systems and Computing, Brunel University, Uxbridge UB8 3PH, United Kingdom
Abstract :
We propose a watermarking scheme that can recover the original image from the watermarked one. The purpose is to verify the integrity and authenticity of DICOM images. We used 800x600x8 bits ultrasound (US) images in our experiment. SHA-256 of the whole image is embedded in the least significant bits of the RONI (Region of Non-Interest). If the image has not been altered, the watermark will be extracted and the original image will be recovered. SHA-256 of the recovered image will be compared with the extracted watermark for authentication.
Keywords :
DICOM; image authenticity and integrity; watermarking; Authentication; Biomedical imaging; DICOM; Data mining; Discrete cosine transforms; Image storage; Medical diagnostic imaging; Pixel; Ultrasonic imaging; Watermarking;
Conference_Titel :
Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE
Print_ISBN :
0-7803-8439-3
DOI :
10.1109/IEMBS.2004.1403911
