| Popis: |
Secure delivery of secret data on the Internet is an important research topic in digital communications. Data encryption and steganography are two common techniques used for sending secret data over a public computer network. Steganography utilizes a digital medium as a cover in the delivery of secret data. For medical and military image applications, reversibility is an important requirement in data embedding method design. This paper presents a reversible data hidding method. The proposed method utilizes the inverse S-scan order, pixel segmentation, and histogram shifting strategies to embed secret data into a cover image. The experiment results indicate that the proposed method can further enhance the data embedding capacity as compared with the method by Li, et al. |
