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GwyDataLine * | gwy_dwt_set_coefficients () |
void | gwy_data_line_dwt () |
void | gwy_data_field_xdwt () |
void | gwy_data_field_ydwt () |
void | gwy_data_field_dwt () |
void | gwy_data_field_dwt_mark_anisotropy () |
GwyDataLine * gwy_dwt_set_coefficients (GwyDataLine *dline
,GwyDWTType type
);
Fills resampled or nely allocated data line with wavelet coefficients.
dline |
Data line to store wavelet coefficients to (or |
|
type |
Wavelet type. |
void gwy_data_line_dwt (GwyDataLine *dline
,GwyDataLine *wt_coefs
,GwyTransformDirection direction
,gint minsize
);
Performs steps of the wavelet decomposition.
The smallest low pass coefficients block is equal to minsize
. Run with
minsize
= dline->res
/2 to perform one step of decomposition
or minsize
= 4 to perform full decomposition (or anything between).
void gwy_data_field_xdwt (GwyDataField *dfield
,GwyDataLine *wt_coefs
,GwyTransformDirection direction
,gint minsize
);
Performs steps of the X-direction image wavelet decomposition.
The smallest low pass coefficients block is equal to minsize
. Run with
minsize
= dfield->xres
/2 to perform one step of decomposition
or minsize
= 4 to perform full decomposition (or anything between).
void gwy_data_field_ydwt (GwyDataField *dfield
,GwyDataLine *wt_coefs
,GwyTransformDirection direction
,gint minsize
);
Performs steps of the Y-direction image wavelet decomposition.
The smallest low pass coefficients block is equal to minsize
. Run with
minsize
= dfield->yres
/2 to perform one step of decomposition
or minsize
= 4 to perform full decomposition (or anything between).
void gwy_data_field_dwt (GwyDataField *dfield
,GwyDataLine *wt_coefs
,GwyTransformDirection direction
,gint minsize
);
Performs steps of the 2D image wavelet decomposition.
The smallest low pass coefficients block is equal to minsize
. Run with
minsize
= dfield->xres
/2 to perform one step of decomposition
or minsize
= 4 to perform full decomposition (or anything between).
void gwy_data_field_dwt_mark_anisotropy (GwyDataField *dfield
,GwyDataField *mask
,GwyDataLine *wt_coefs
,gdouble ratio
,gint lowlimit
);
Performs steps of the 2D image wavelet decomposition.
The smallest low pass coefficients block is equal to minsize
. Run with
minsize
= dfield->xres
/2 to perform one step of decomposition
or minsize
= 4 to perform full decomposition (or anything between).