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Highlights from
Nonsubsampled Contourlet Toolbox

• atrousdec(x,fname,Nlevels); ATROUSDEC - computes the 2-D atrous decomposition using symmetric extension.
• atrousfilters(fname); ATROUSFILTERS Generate pyramid 2D filters
• decdemo( im, option ) DECDEMO demonstrates nonsubsampled Contourlet decomposition and reconstruction.
• dfilters(fname, type) DFILTERS Generate directional 2D filters
• dmaxflat(N,d) returns 2-D diamond maxflat filters of order 'N'
• efilter2(x, f, extmod, shift) EFILTER2 2D Filtering with edge handling (via extension)
• extend2(x, ru, rd, cl, cr, ex... EXTEND2 2D extension
• ho=upsample2df(h, power); upsample filter by 2^power;
• ld2quin(beta) LD2QUIN Quincunx filters from the ladder network structure
• ldfilter(fname) LDFILTER Generate filter for the ladder structure network
• mctrans(b,t) MCTRANS McClellan transformation
• modulate2(x, type, center) MODULATE2 2D modulation
• nsctdec(x, levels, dfilt, pfi... NSSCDEC Nonsubsampled Contourlet Transform Decomposition
• nsdfbdec( x, dfilter, clevels... NSDFBDEC Nonsubsampled directional filter bank decomposition.
• nsdfbrec( x, dfilter ) NSDFBREC Nonsubsampled directional filter bank reconstruct.
• nsfbdec( x, h0, h1, lev ) nsfbdec - computes the ns pyramid decomposition
• nsfbrec( y0, y1, g0, g1, lev ... nsfbrec - computes the inverse of 2-D atrous decomposition at level lev
• nsscrec(y, dfilt, pfilt) NSCTREC Nonsubsampled Contourlet Reconstruction
• nssfbdec( x, f1, f2, mup ) NSSFBDEC Two-channel nonsubsampled filter bank decomposition with periodic extension.
• nssfbrec( x1, x2, f1, f2, mup... NSSFBREC Two-channel nonsubsampled filter bank reconstruction with periodic extension.
• parafilters( f1, f2 ) PARAFILTERS Generate four groups of parallelogram filters.
• qupz(x, type) QUPZ Quincunx Upsampling (with zero-pad and matrix extending)
• resampz(x, type, shift) RESAMPZ Resampling of matrix
• shownsct( y ) SHOWNSSC Show nonsubsampled Contourlet transform coefficients.
• wfilters(wname,o) WFILTERS Wavelet filters.
• x=satrousrec(y,fname); SATROUSREC - computes the inverse of 2-D atrous decomposition computed with ATROUSDEC
• yT=symext(x,h,shift); FUNCTION Y = SYMEXT
• dfbdecdemo.m
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