Image Analysis

Decimated and nondecimated 2-D transforms, 2-D multiresolution analysis, 2-D lifting schemes, image fusion, wavelet packet analysis


dyaddown Dyadic downsampling
dyadup Dyadic upsampling
upcoef2 Direct reconstruction from 2-D wavelet coefficients
appcoef2 2-D approximation coefficients
detcoef2 2-D detail coefficients
dwt2 Single-level discrete 2-D wavelet transform
dwtmode Discrete wavelet transform extension mode
idwt2 Single-level inverse discrete 2-D wavelet transform
wavedec2 Multilevel 2-D wavelet decomposition
waverec2 Multilevel 2-D wavelet reconstruction
wrcoef2 Reconstruct single branch from 2-D wavelet coefficients
upwlev2 Single-level reconstruction of 2-D wavelet decomposition
wenergy2 Energy for 2-D wavelet decomposition
ilwt2 Inverse 2-D lifting wavelet transform
iswt2 Inverse discrete stationary wavelet transform 2-D
lwt2 2-D lifting wavelet transform
lwtcoef2 Extract or reconstruct 2-D LWT wavelet coefficients
swt2 Discrete stationary wavelet transform 2-D
iswt2 Inverse discrete stationary wavelet transform 2-D
dddtreecfs Extract dual-tree/double-density wavelet coefficients or projections
dddtree2 Dual-tree and double-density 2-D wavelet transform
dtfilters Analysis and synthesis filters for oversampled wavelet filter banks
idddtree2 Inverse dual-tree and double-density 2-D wavelet transform
plotdt Plot dual-tree or double-density wavelet transform
wcodemat Extended pseudocolor matrix scaling
wfusimg Fusion of two images
wfusmat Fusion of two matrices or arrayz
measerr Approximation quality metrics
wextend Extend vector or matrix
wkeep Keep part of vector or matrix
wavemenu Wavelet Toolbox GUI tools
wavemngr Wavelet manager
dwtmode Discrete wavelet transform extension mode
wpdec2 Wavelet packet decomposition 2-D
wprec2 Wavelet packet reconstruction 2-D
wpcoef Wavelet packet coefficients
wprcoef Reconstruct wavelet packet coefficients
bestlevt Best level tree wavelet packet analysis
besttree Best tree wavelet packet analysis
entrupd Entropy update (wavelet packet)
wentropy Entropy (wavelet packet)
plot Plot tree GUI
wpfun Wavelet packet functions
cfs2wpt Wavelet packet tree construction from coefficients
depo2ind Node depth-position to node index
wp2wtree Extract wavelet tree from wavelet packet tree
wpcutree Cut wavelet packet tree
wpsplt Split (decompose) wavelet packet
wpjoin Recompose wavelet packet
ind2depo Node index to node depth-position
write Write values in WPTREE fields
read Read values of WPTREE
readtree Read wavelet packet decomposition tree from figure
set WPTREE field contents
tnodes Determine terminal nodes
wptree WPTREE constructor
disp WPTREE information
drawtree Draw wavelet packet decomposition tree (GUI)
dtree DTREE constructor
allnodes Tree nodes
get WPTREE contents
isnode Existing node test
istnode Terminal nodes indices test
leaves Determine terminal nodes
nodeasc Node ascendants
nodedesc Node descendants
nodejoin Recompose node
nodepar Node parent
nodesplt Split (decompose) node
noleaves Determine nonterminal nodes
ntnode Number of terminal nodes
ntree NTREE constructor
treedpth Tree depth
treeord Tree order
wtbo WTBO constructor
wtreemgr NTREE manager

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