thselect wavelet toolbox upcoef2

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upcoef

Direct Restruction

Calling Sequence

Y=upcoef(type,x,wname,[N],[L])
Y=upcoef(type,x,Lo_R,Hi_R,[N],[L])

Parameters

type
: approximation or detail, 'a' or 'd'.
x
: input vector
wname
: wavelet name, haar( "haar"), daubechies ("db1" to "db20"), coiflets ("coif1" to "coif5"), symlets ("sym2" to "sym20"), legendre ("leg1" to "leg9"), bathlets("bath4.0" to "bath4.15" and "bath6.0" to "bath6.15"), dmey ("dmey"), beyklin ("beylkin"), vaidyanathan ("vaidyanathan"), biorthogonal B-spline wavelets ("bior1.1" to "bior6.8"), "rbior1.1" to "rbior6.8"
X
: reconstruction
Lo_R
: lowpass synthesis filter
Hi_R
: highpass syntheis filter
N
: restruction level
L
: desired output length

Description

upcoef is for upward reconstruction from any desired input vector.

Examples

x=rand(1,100);
[cA,cD]=dwt(x,'db2');
Y=upcoef('a',cA,'db2',1);
Z=upcoef('a',cA,'db2',3);

Authors

Roger Liu and Isaac Zhi

See Also

thselect wavelet toolbox upcoef2