Name

upcoef2 — Two Dimension Direct Restruction

Calling Sequence

Y=upcoef2(type,x,wname,[N],[S])
Y=upcoef2(type,x,Lo_R,Hi_R,[N],[S])

Parameters

x
: input matrix
type
: approximation or detail, 'a', 'h', 'v' or 'd'.
wname
: wavelet name
Y
: reconstruction
Lo_R
: lowpass synthesis filter
Hi_R
: highpass syntheis filter
N
: restruction level
S
: desired output size vector

Description

upcoef2 is for upward two dimension reconstruction from any desired input matrix.

Examples

  x=rand(100,100);
  [cA,cH,cV,cD]=dwt2(x2,'db2');
  Y=upcoef2('a',cA,'db2',1);
  Z=upcoef2('h',cH,'db2',3);
 

Authors

Roger Liu and Isaac Zhi

See Also

wavedec2 , waverec2 , wrcoef2