LWT-Based Watermarking Scheme for Image Authentication
摘要
Digital image authentication is a critical process in ensuring the integrity and ownership of digital images, especially in the age of widespread digital manipulation and unauthorized use. In this manuscript, an image watermarking scheme has been proposed by combining the Lifting Wavelet Transform (LWT) and the Least Significant Bit (LSB) for image authentication. The goal of the proposed scheme is to achieve robustness against various attacks while maintaining the high-quality visual appearance of the watermarked image. Experimental evaluations are conducted to assess the performance of the proposed hybrid watermarking scheme. Various metrics, including Peak Signal-to-Noise Ratio (PSNR), Structural Similarity Index (SSIM), and Normalized Correlation (NC), are employed to measure the visual quality, robustness, and authentication accuracy of the watermarked image. The results demonstrate the effectiveness of the proposed scheme in achieving high-quality visual appearance, robustness against attacks, and accurate image authentication.