An Adaptive Image Watermarking Algorithm based on Wavelet Transform

The digitization has offered great convenience for the storage and using of the multimedia information and improved the efficiency and accuracy of information expressing greatly.Internet has already become the most convenient and the low-priced way to propagate digital products.But at the same time,this also leads to serious problem regarding IPR protection.As an effective method to provide copyright protection for digital media,digital watermarking technology has drawn extensive attention in recent years.An adaptive image watermarking algorithm is proposed by using the visible binary image as watermarking based on discrete wavelet transform and human visual system.The algorithm splits an original image into blocks,according to two adjacent sub-blocks of wavelet transform corresponding to the details of the relationship between the size of the mean adaptivily embedded binary watermark.Experimental results show that the proposed algorithm is well invisible and robust.