A digital watermark is an invisible mark embedded in a digital image which may be used for Copyright Protection. The embedded marks are designed to be unaffected by any comb ination of rotation, scale and translation transformations. The original image is not required for extracting the embedded mark.
Digital networks provide an efficient cost-effective means of distributing digital media.
Doc 34 Secure spread spectrum watermarking for images - Cox, Killian et al. The graph only includes citing articles where the year of publication is known.