Application of saliency map to restraint scheme of attack to digital watermark using seam carving

Recent years have witnessed a drastic rise in the number of image content on the Internet. In this context, several digital watermarking techniques have been investigated in order to prevent illegal duplication and distribution of such content. Illegal users in turn attempt to remove digital watermarks from such content, and collusion-attacking methods, such as an average value attack, constitute a serious threat to digital watermarks. In previous research, we proposed a restraint scheme of average value attacks, which is one of collusion attacking. By the scheme, a region of interest (ROI) on the image is translated based on seam carving technique. When the image content is done by average value attack, a reconstructed image quality is decreased. However, the ROI is located manually on the content. Therefore, we applied a saliency map to the scheme for locating ROI automatically. Experiments have been shown good results.