prep_contour_fourierT_prep_contour_fourierPrepContourFourierprep_contour_fourierPrepContourFourierPrepContourFourier (Operator)

Name

prep_contour_fourierT_prep_contour_fourierPrepContourFourierprep_contour_fourierPrepContourFourierPrepContourFourier — Parameterize the passed contour.

Warning

prep_contour_fourierprep_contour_fourierPrepContourFourierprep_contour_fourierPrepContourFourierPrepContourFourier is obsolete and is only provided for reasons of backward compatibility.

Signature

Description

The operator prep_contour_fourierprep_contour_fourierPrepContourFourierprep_contour_fourierPrepContourFourierPrepContourFourier parameterizes the transmitted contour in order to prepare it for the one dimensional Fourier transformation. Hereby the contour must be available in closed form. Three parameter functions are available for the control parameter TransModeTransModeTransModeTransModeTransModetransMode:

arc:

Parameterization by the radian.

signed_area:

Parameterization by the signed area.

unsigned_area:

Parameterization by the absolute area.

Please note that in contrast to the signed or unsigned area the affine mapping of the radian will not be transformed linearly.

Parallelization

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

Example (C++ (HALCON 5.0-10.0))

get_region_contour(single,&row,&col);
move_contour_orig(row,col,&trow,&tcol);
prep_contour_fourier(trow,tcol,"unsigned_area",&param_scale);
fourier_1dim(trow,tcol,param_scale,&frow,&fcol);

Module

Foundation