A High Embedding Capacity Steganographic Method Using Maximum and Minimum pixels Difference Adaptive Strategy

Abstract

The security of transmitting data over the Internet is always of great concern. As a popular research topic, an efficient steganographic technique aims to hide a secret message for secure transmission over the Internet. In this paper, we propose a new information hiding method based on the difference value between the maximum and minimum pixels in an image block and using Modified Least Significant Bit (LSB) substitution strategy to conceal data. The difference value will be in one of three levels (lower, middle, and higher). Using Modified LSB substitution, the lower, middle, and higher levels correspond to 3-, 4-, and 5-bit embedded secret data, respectively. The experimental results demonstrate that the embedding capacity of the proposed method is greater than previous contributions and maintain a good image quality of stego images that are generated by the proposed method.