Semi-blind Watermarking via Laser Engraving Attacked

An Image Watermarking is used to identify the ownership, with the copyright information hiding inside a digital image. In this paper, a robust and secure digital grey image scheme is proposed by using a modified Non-Negative Matrix Factorization (NMF) algorithm. At the same time, the perceptual quality of watermarked image stays constant. In order to certify the higher robustness of this method, the grey image engrave the Polycarbonate (PC) films by the low-power laser. Our experiments show that our approach is able to detect the semi-blind watermarking of a grey image for the PC films by the video camera, which to certain degrees is invisible to human eyes when using laser engraving.