Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
396066 | Information Sciences | 2007 | 19 Pages |
Abstract
This paper presents a lossless and reversible steganography scheme for hiding secret data in each block of quantized discrete cosine transformation (DCT) coefficients in JPEG images. In this scheme, the two successive zero coefficients of the medium-frequency components in each block are used to hide the secret data. Furthermore, the scheme modifies the quantization table to maintain the quality of the stego-image. Experimental results also confirm that the proposed scheme can provide expected acceptable image quality of stego-images and successfully achieve reversibility.
Related Topics
Physical Sciences and Engineering
Computer Science
Artificial Intelligence
Authors
Chin-Chen Chang, Chia-Chen Lin, Chun-Sen Tseng, Wei-Liang Tai,