摘要
数字密写技术作为信息隐藏的一个重要分支,近年来受到广泛关注。为了在保证隐蔽性的前提下提高数据的隐藏量,介绍了一种基于JPEG修改的量化表数字密写技术,利用在JPEG图像压缩过程中的原理,将隐蔽信息嵌入到相应的DCT系数上。通过实验分析与常用的密写算法比较,结果显示该方法具有较好的隐蔽性且具有较好的数据隐藏量。
Digital steganography technology as an important branch of information hiding has attract more attention. In order to ensure the hidden and to improve the amount of date hiding,this paper described steganography algorithm based on quantization table of JPEG quantization table. We hide the information to insert to corresponding of DCT through the JPEG image compression process. Through experimental analysis and compared with Jsteg and F3 steganography algorithms. We made out that the quality of the stego-images of the proposed algorithm are acceptabled and had a good amount of data hiding.
出处
《电子设计工程》
2010年第7期71-73,共3页
Electronic Design Engineering
关键词
信息隐藏
密写
联合图像专家组
量化表
information Hiding
steganography
JPEG
quantization table
