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

Steerable pyramid The toolbox contains a simple wrapper to the code of Eero Simoncelli that can be downloaded from http://www.cns.nyu.edu/~eero/STEERPYR/ The steerable transform is an oriented wavelet transform. It allows to analyse an image along

Decompose image into subbands, denoise, and recompose again. fh = decomp_reconst(im,Nsc,Nor,block,noise,parent,covariance,optim,sig) covariance: are we considering covariance or just variance? optim: for choosing between BLS-GSM (opti

可控金字塔可以很好的控制方向，比非下采样contourlet的方向分解更好一些。(used for edge detection)