Medical Image Watermarking Technique in the Application of E- diagnosis Using M-Ary Modulation

A robust and lossless ROI medical image watermarking technique using M-Ary modulation is proposed in this paper. The system's effectiveness is experimentally tested for two different medical image modalities of brain using various quality measures as payload, PSNR, MSE and SSIM. The proposed algorithm provides high robustness, higher PSNR and low relative entropy distance as a criterion for protection.