2.11.2.4 dwt2(Pro)

Contents

Menu Information

Analysis: Signal Processing: Wavelet: 2D Decompose

Brief Information

Perform 2D wavelet decomposition

Additional Information

This feature is for OriginPro only.

Command Line Usage

1. dwt2 im:=Mat(1);

2. dwt2 type:=db3;

X-Function Execution Options

Variables

Display
Name 		Variable
Name 		I/O
and
Type 		Default
Value 		Description
Input Matrix im

Input

MatrixObject

<active>

Specify the input matrix

Wavelet Type type

Input

int

haar

Specify the mother wavelet

Option list

  • haar :Haar
    Haar wavelet
  • db2:DB2
    Daubechies wavelet (N=2)
  • db 3:DB3
    Daubechies wavelet (N=3)
  • db 4:DB4
    Daubechies wavelet (N=4)
  • db 5:DB5
    Daubechies wavelet (N=5)
  • db 6:DB6
    Daubechies wavelet (N=6)
  • db 7:DB7
    Daubechies wavelet (N=7)
  • db 8:DB8
    Daubechies wavelet (N=8)
  • db 9:DB9
    Daubechies wavelet (N=9)
  • db 10:DB10
    Daubechies wavelet (N=10)
  • b11:Bior1.1
    Biorthogonal (Nr=1, Nd=1)
  • b13:Bior1.3
    Biorthogonal (Nr=1, Nd=3)
  • b15:Bior1.5
    Biorthogonal (Nr=1, Nd=5)
  • b22:Bior2.2
    Biorthogonal (Nr=2, Nd=2)
  • b24:Bior2.4
    Biorthogonal (Nr=2, Nd=4)
  • b26:Bior2.6
    Biorthogonal (Nr=2, Nd=6)
  • b28:Bior2.8
    Biorthogonal (Nr=2, Nd=8)
  • b31:Bior3.1
    Biorthogonal (Nr=3, Nd=1)
  • b33:Bior3.3
    Biorthogonal (Nr=3, Nd=3)
  • b35:Bior3.5
    Biorthogonal (Nr=3, Nd=5)
  • b37:Bior3.7
    Biorthogonal (Nr=3, Nd=7)
Approx Coefficients ca

Output

MatrixObject

[<new>]<new>!

Specify the output matrix for approximation coefficients See the syntax .

Detail Coefficients (Horizontal) ch

Output

MatrixObject

[<same>]<new>!

Specify the output matrix for horizontal detail coefficients See the syntax .

Detail Coefficients (Vertical) cv

Output

MatrixObject

[<same>]<new>!

Specify the output matrix for vertical detail coefficients See the syntax .

Detail Coefficients (Diagonal) cd

Output

MatrixObject

[<same>]<new>!

Specify the output matrix for diagonal detail coefficients

See the syntax .


Examples

1. To decompose the 1st matrix object in the 1st sheet of MBook1 using DB2 wavelet and save the result to different matrices, use the following script command:

dwt2 im:=[MBook1]1!Mat(1) type:=1 ca:=[MBook2]1!Mat(1) ch:= [MBook2]2!Mat(1) cv:= [MBook2]3!Mat(1) cd:= [MBook5]1!Mat(1);

2. To open the dwt2 dialog, use the script command:

dwt2 -d

3. To perform dwt2 to data using a pre-saved analysis theme file, save your preferences in the advanced options in the dwt2 dialog, and then execute it by typing (for example, but using your own saved-theme title) the script command:

dwt2 -t "my theme.oth"

More Information

For more information, please refer to our User Guide.


Related X-Functions

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Keywords:decompose