High-Performance Digital Watermarking with L2-Norm Centroid for Colour Images

In this paper, we present a high-capacity watermarking scheme for color images by using the idea of L2-Norm centroid. Based on spatial domain, the proposed scheme can effectively embed a secret watermark in a host image. Simulations demonstrate that the marked images generated by the proposed watermarking scheme are tolerant of versatile attacks such as color reduction, compression, cropping, blurring, noise addition, and pixel-truncation. In addition, the payload provided by our method is larger than that provided by existing techniques.