Multichannel color image watermark detection utilizing vector-based hidden Markov model

摘要: Multimedia data piracy in the Internet is a growing problem, since it provides easy and fast transmission. Watermarking regarded as solution to restrain unauthorized duplication or distribution data. Image watermarking research mostly focuses on grayscale images with an extension color images. However, most of these techniques ignore dependencies between channels. In view this, this work, multichannel image technique its corresponding detector wavelet domain proposed. The inter-channel RGB channels inter-scale coefficients are taken into account by employing vector-based hidden Markov model. We conduct experiment set assess performance proposed watermark detector. results show that superior other detectors terms imperceptibility embedded detection rate. It also shown has better presence absence different kinds attacks comparison existing methods.