A New Data Embedding Method with a New Data Embedding Domain for JPEG Images

Data embedding for digital images is a kind of technology which embeds message, i.e., data stream, into image(s). The design of data embedding may vary according to different applications such as watermarking, data hiding, authentication, steganography, etc. However, the basis of data embedding is the embedding domain. In this paper, we discover a new embedding domain, rounding/truncation error (RTE) domain, which is obtained due to the rounding/truncation error during the decompression of JPEG image, for JPEG image data embedding. To demonstrate the viability of the domain, we propose a new data embedding method which could be exploited for data hiding and authentication. Experimental results indicate that the proposed data embedding method possesses certain embedding capacity and achieves excellent performance when considering imperceptibility of the embedded image,