Image steganalysis based on moments of wavelet subband histgrams in frequency domain using prediction-error image
基于图像及其预测误差图小波频域矩的隐写分析

A general steganalysis system was proposed.The test image and its prediction-error image were first decomposed by 3-level discrete wavelet transform,then 78 statistical moments of subband histgrams in frequency domain(using DFT) were calculated as features,and Support Vector Machines(SVM) was utilized as classifier.The experimental results based on CorelDraw image database demonstrate that our steganalysis system is superior to other prevailing ones.