关于Steerable filtering decomposition 的matlab程序,- STEERGAUSS Implements a steerable Gaussian filter. This m-file can be used to evaluate the first directional derivative of an image, using the method outlined in: W. T. Freeman and E. H. Adelson

Steerable Gaussian Filters,可变的高斯滤波器，使用效果好，大家放心下载吧-Steerable Gaussian Filters

各种图像描述符算法,图像特征提取用的是SIFT特征检测子-computes steerable filters, SIFT descr iptor, moments, differential invariants, complex filters, shape context, spin images, PCA-SIFT.

Implements the 1st and 2nd order Gaussian derivative steerable filter in matlab.The oriented first order derivative can be obtained by taking the dot product of a unit vector oriented in a specific direction with the gradient. The basis filters are