steerable pyramid gaussion laplassion-steerable pyramid

方向高斯滤波器，可以用于图像边缘检测和分析，倾角可以由用户给定-This program can be used to uate the first directional derivative of an image. The orientation of the filter can be specified by the user. In general, these filters could be useful for edge detection and image analysi

小波变换和编码功能，包括其他更奇特的变换（拉普拉斯，可控）(Wavelet transform and coding functions, including other more exotic transforms (laplacian, steerable)