An Efficient Multiple Data Hiding Technique for Medical Images Using QR Code Authentication

The paper proposes an efficient algorithm using second-generation wavelet (SWT) and SVD based hybrid feature extraction methods for used for medical images watermarking. Combining the strong feature of embedding and extraction techniques like stationary wavelet transform(SWT) and Singular Value Decomposition(SVD), enables the selection of the regions in an in an image which provides high level of imperceptibility after embedding the watermark. The algorithm provides a double level of security by embedding the QR code of the hospital along with its logo for the purpose of content authentication. The evaluation of imperceptibility has been done using performance metrics like Peak Signal to Noise Ratio (PSNR), Mean Square Error (MSE), Bit Error Rate (BER), correlation.