Secret Image Transmission Scheme Using Secret Codebook

Shih-Chieh SHIE  Ji-Han JIANG  Long-Tai CHEN  Zeng-Hui HUANG 

Publication
IEICE TRANSACTIONS on Information and Systems  Vol.E93-D  No.2  pp.399-402
Publication Date: 2010/02/01
Online ISSN: 1745-1361
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Image Processing and Video Processing
Keyword: 
secret image transmission,  vector quantization,  adaptive codebook, 

Full Text: PDF

Summary: 
A secret image transmission scheme based on vector quantization (VQ) and a secret codebook is proposed in this article. The goal of this scheme is to transmit a set of good-quality images secretly via another high-quality cover image with the same image size. In order to reduce the data size of secret images, the images are encoded by an adaptive codebook. To guarantee the visual quality of secret images, the adaptive codebook applied at the transmitter is transmitted to the receiver secretly as well. Moreover, to enhance the security of the proposed scheme and to compact the data size of the codebook, the adaptive codebook is encoded based on VQ using another codebook generated from the cover image. Experiments show impressive results.