wrcoef2 - Restruction from single branch from two dimension multiple level decompstion

Calling Sequence

X=wrcoef2(type,c,s,wname,[N])

X=wrcoef2(type,c,s,Lo_R,Hi_R,[N])

Parameters

• type : approximation or detail, 'a', 'h', 'v' or 'd'.
• wname : wavelet name
• X : reconstruction
• Lo_R : lowpass synthesis filter
• Hi_R : highpass syntheis filter
• c : coefficent array
• s : size array
• N : restruction level

Description

wrcoef2 is for reconstruciton from single branch of two dimension multiple level decompostion. Extension mode is stored as a global variable and could be changed with dwtmode. If N is omitted, maximum level is used.

Examples

  x=rand(100,100);
  [C,S]=wavedec2(x,3,'db2');
  A2=wrcoef2('a',c,S,'db2',2);
 

Author

Roger Liu and Isaac Zhi

See Also

wavedec2 ,   waverec2 ,   upcoef2 ,