利用DCT域特征的JPEG图像数字水印及数字图像隐藏盲检测

BLIND STEGANALYSIS AND WATERMARK ANALYSIS FOR JPEG IMAGES USING DCT FREQUENCY FEATURES

对基于DCT系数的隐藏进行了分析,提出了一种频域特征的新算法。该算法无需任何的训练过程,对JPEG图像的各种数字图像隐藏和水印具有广泛的效果。将该算法成功地应用于通过数码相机、Internet和从无损格式图像压缩获得的图像样本。测试结果显示该算法对于基于DCT变换的数字隐藏检测具有良好的效果。

In this paper,we proposed a new steganalysis algorithm of frequency domain, features after studying the steganography based on DCT coefficients. This method does not require any training and can be widely used on steganography and Watermark of JPEG images from various sources. We have applied our algorithm on sample images captured from digital camera, the Intemet, and compressed images from lossless format. Experimental results show it works well on detection of DCT based steganography.