Secure Watermarking Scheme for Color DICOM Images in Telemedicine Applications

Teleradiology plays a vital role in the medical field, which permits transmitting and imaging data over communication network. It ensures reliability provides convenient for clinical interpretation diagnostic purposes. The transmission of this network raises problems legal, ethical issues, privacy, copyright authenticity. protection images is significant issue field. Watermarking schemes are used to address these issues. A gray-level or binary image as watermark frequently color watermarking schemes. In paper, authors propose novel non-blind scheme based on 2-D Lifting Wavelet Transform (LWT), Multiresolution Singular Value Decomposition (MSVD), LU factorization improve robustness authenticity images. scheme, multiple watermarks embedded into colored DICOM (Digital Imaging Communications Medicine) obtained from Color Doppler (DICOM format), average results achieved by our proposed 46.84 db Peak Signal-to-Noise Ratio (PSNR), 37.46 (SNR), 0.99 Quality Image 0.998 Normalized Correlation various processing attacks. These make technique an ideal candidate watermarking.