Dynamic embedding strategy of VQ-based information hiding approach

摘要

Information security is one of the most challenging issues. Cryptography and Steganography techniques are two popular methods for protecting data privacy. In this study, an information hiding method with dynamic embedding capacity based on vector quantization is proposed for protecting confidential data. To improve embedding capacity and image quality at the same time, dynamic-length secret bits are embedded into each pixel. Compared with previous approaches, the proposed method preforms better regarding the embedding capacity and image quality. (C) 2018 Elsevier Inc. All rights reserved.