A Steganographic Method with High Embedding Capacity by Improving Exploiting Modification Direction

• Authors: Chin-Feng Lee;Yi-Ren Wang;Chin-Chen Chang
• Venue: IIH-MSP '07 Proceedings of the Third International Conference on International Information Hiding and Multimedia Signal Processing (IIH-MSP 2007) - Volume 01
• Year: 2007

We propose an effective data hiding method based on the EMD embedding scheme proposed by Zhang et al. in order to enhance the embedding capacity. The main idea of our proposed scheme is to convert secret binary messages into a sequence of digits in an 8-ary notational system. Each secret digit is embedded into two cover pixels by modifying the least significant bits (LSBs). As the experimental results show, the embedding bit-rate of our scheme is 1.5 times better than the EMD embedding scheme. In a word, we propose a high-quality and high-capacity data hiding method that can ensure the stego-image quality and security. Index Terms--EMD embedding scheme, embedding capacity, embedding bit-rate, data hiding