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void gwy_data_field_hough_line (GwyDataField *dfield,GwyDataField *x_gradient,GwyDataField *y_gradient,GwyDataField *result,gint hwidth,gboolean overlapping);
void gwy_data_field_hough_circle (GwyDataField *dfield,GwyDataField *x_gradient,GwyDataField *y_gradient,GwyDataField *result,gdouble radius);
void gwy_data_field_hough_line_strenghten (GwyDataField *dfield,GwyDataField *x_gradient,GwyDataField *y_gradient,gint hwidth,gdouble threshold);
void gwy_data_field_hough_circle_strenghten (GwyDataField *dfield,GwyDataField *x_gradient,GwyDataField *y_gradient,gdouble radius,gdouble threshold);
gint gwy_data_field_get_local_maxima_list (GwyDataField *dfield,gdouble *xdata,gdouble *ydata,gdouble *zdata,gint ndata,gint skip,gdouble threshold,gboolean subpixel);
Locates local maxima in a data field.
At most ndata
 maxima are located.
| dfield | A two-dimensional data field. | |
| xdata | Array of  | |
| ydata | Array of  | |
| zdata | Array of  | |
| ndata | Number of items in  | |
| skip | Minimum pixel distance between maxima. | |
| threshold | Minimum value to be considered a maximum. | |
| subpixel | 
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void gwy_data_field_hough_polar_line_to_datafield (GwyDataField *dfield,gdouble rho,gdouble theta,gint *px1,gint *px2,gint *py1,gint *py2);