A Novel Bit-plane Compression based Reversible Data Hiding Scheme with Arnold Transform
- 1. Assistant Professor, Department of Computer Science and Engineering, SRM University, Andhra Pradesh, India.
- 2. Associate Professor, Department of Computer Science and Engineering, Institute of Information Technology Design and Manufacturing Kancheepuram, Chennai, Tamil Nadu, India.
- 1. Publisher
Reversible data hiding (RDH) is an active research area in the field of information security. The RDH scheme allows the transmission of a secret message by embedding it into a cover image, and the receiver can recover the original cover image along with the extraction of the secret message. In this paper, we propose a bit plane compression based RDH scheme to hide a sequence of secret message bits into a grayscale image. In the proposed method, a selected bit plane of the cover image will be compressed using run-length encoding (RLE) scheme. Further, the RLE sequence has been efficiently encoded as a binary sequence using Elias gamma encoding method. The Elias gamma encoded bit sequence concatenated with the secret message bits are used to replace the selected bit plane after performing a sequence of Arnold transform. The Arnold transform helps to find a new scrambled version of the bit plane which is very close to the original bit plane to ensure the visual quality of the stego image. The RLE is a lossless compression technique, therefore recovery of the original image is possible by the receiver. The experimental study of the proposed scheme on the images from standard image dataset (USC-SIPI image dataset) shows that the proposed scheme outperforms the existing scheme in terms of the visual quality of the stego image without compromising the data embedding rate.
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- Journal article: 2249-8958 (ISSN)
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