文章基本信息

标题：A ROBUST STEGANOGRAPHY APPROACH WITH HIGH EMBEDDING CAPACITY USING UNIQUE VALUE EMBEDDING AND CODEBOOK
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作者：SARDJOENI MOEDJIONO ; ACHMAD RIFAI ; TEDDY MANTORO 等
期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2014
卷号：66
期号：2
出版社：Journal of Theoretical and Applied
摘要：Steganography is the art of hiding data and an effort to conceal the existence of the embedded information. There are a lot of data to be embedded such as text, image, audio, and video. An information hiding system is characterized by having three different aspects that contend with each other. These are capacity, security, and robustness. In steganography area, the common method used to hide a secret data is LSB (Least Significant Bit). LSB provides the high embedding capacity, however, when the secret data is larger than cover data, the cover data would be dramatically distorted. The distorted cover data can attract the attacker to perform steganalysis method. This study is carried out to overcome the embedding capacity problem without producing a significant distortion in cover data. The experiment is tested by hiding audio signals in image file. The idea is to convert the audio signals into native data representation (unsigned integer 8) and to find its unique values. The image will be modeled its codebook in order to obtain a great embedded image quality using LBG (Linde Buzo Gray) algorithm. The result shows a high PSNR (Peak Signal to Noise Ratio) for extracted audio file and low RMSE (Root Mean Square Error) for image file.
关键词：Audio signals; Steganography; LBG; LSB; Codebook; Embedding capacity.