A Reversible Data Hiding Method by Compressing Overlapping Pixels

Due to some of the data hiding schemes requiring additional key to restore image and complex in implement, a scheme deleting the overlapping pixels information and embedding the watermark was proposed, because the information of overlapping pixels is redundant which can be compressed produce storage space. At the same time, an embedding data algorithm and an extracting embedded data algorithm was designed. The algorithm is simple. The experiments show that the embedding image have good peak signal to noise ratio (PSNR) and big embedding capacity, the larger redundant space of image pixel information, the larger the capacity of data hiding.