Image Error Concealment and Quality Access Control Based on Data Hiding and Cryptography
This paper proposes a scheme that integrates error concealment and quality access control of digital image(s) in a single platform. The objective is achieved by embedding some important information extracted from the original image itself, to introduce sufficient redundancy in the transmitted image. The data embedding is done by modulating integer wavelet coefficients using quantization index modulation (QIM). Before data embedding the important information is encrypted using chaotic logistic mapping. The necessary information in the form of the secret key (K) is further encrypted using a public key (P) cryptology for its secret transmission to the receiver. The user who has the knowledge of the secret key (K) can decrypt the hidden information for the concealment purpose, while the users having different partial knowledge of the key (K) enjoy relative qualities of the images by partial recovery of the damaged region. The simulation results have shown the validity of both the claims.
Error Concealment Cryptograph Access Control Data Hiding Lifting QIM
Amit Phadikar Santi P. Maity Claude DELPHA
Department of Information Technology, MCKV Institute of Engineering, Liluah, Howrah 711204, India Laboratiore des Signaux et Systemes (L2S), CNRS, Universite Paris-Sud XI (UPS), SUPELEC, France
国际会议
武汉
英文
583-587
2009-11-18（万方平台首次上网日期，不代表论文的发表时间）