An Improved Image Authentication Method Using QR Code Watermarking Approach

Despite the progress in digital watermarking technology by optimizing the embedding method and enhancing the robustness of watermarking, the performance can still be improved using the Quick Response (QR) code technology. This paper proposes an improved QR code image watermarking approach by embedding texture-based QR code watermarking into the digital image. In contrast to the existing methods, an improved perceptual hash algorithm is used to extract image texture features, and therefore enhance the relevance of watermarking with image content, especially in light color images. In addition, the QR code method is combined with the reversible watermark algorithm in order to handle the problem that the original image is irreversibly modified. The experiments demonstrate that the proposed method can efficiently enhance the watermarking robustness, and resists common attacks.