霍夫变换，直线检测，包括了边缘检测，双向高斯滤波。自己写的函数， 不是toolbox自带函数。图像处理-Hough Transform，line detect, edge detect, sep-guassian filter, matlab, image processing.self-define function， no toolbox

【论文源代码】M. C. Stamm and K. J. R. Liu, Anti-Forensics of Digital Image Compression , IEEE Trans. on Information Forensics and Security, vol. 6, no. 3, pp. 1050 - 1065, Sep. 2011.-This code was written by Matthew C. Stamm at the University of Maryland,