A TRANSPARENT WATERMARKING METHOD FOR COLOR IMAGES
S. Armeni, Dimitris Christodoulakis, Ioannis Kostopoulos, Yannis C. Stamatiou, Michalis Xenos, Watermarking Model · 2000
This paper presents a secure watermarking method, which provides robustness against a set of attacks. The watermark is embedded into the blue channel of the images in specific locations that guarantee the minimization of the number of bits modified, based on bit similarities that exist between the signature and the cover data. Visual quality measurements and empirical tests have shown the imperceptibility of the embedded watermark. Over 500 tests were performed on numerous images from our image collection, confirming that the watermark can be recovered, even after multiple attacks have been launched in sequence. The probability of false recovery, according to this method is extremely low. Experimental confirmation of the low probability is also provided in this paper.