PDTDFB toolbox The filter bank is described in: The Shiftable Complex Directional Pyramid—Part I: Theoretical Aspects The Shiftable Complex Directional Pyramid—Part II: Implementation and Applications IEEE transaction on singnal pro

Matlab code to visualize Steerable filters.

Design and Use of Steerable Filters PAMI1991文章的代码，含有测试图像和demo，可运行-It 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.