Classes
class	cv::ximgproc::ContourFitting
	Class for ContourFitting algorithms. ContourFitting match two contours \( z_a \) and \( z_b \) minimizing distance \[ d(z_a,z_b)=\sum (a_n - s b_n e^{j(n \alpha +\phi )})^2 \] where \( a_n \) and \( b_n \) are Fourier descriptors of \( z_a \) and \( z_b \) and s is a scaling factor and \( \phi \) is angle rotation and \( \alpha \) is starting point factor adjustement. More...

Functions
void	cv::ximgproc::contourSampling (InputArray src, OutputArray out, int nbElt)
	Contour sampling .

Ptr< ContourFitting >	cv::ximgproc::createContourFitting (int ctr=1024, int fd=16)
	create ContourFitting algorithm object

void	cv::ximgproc::fourierDescriptor (InputArray src, OutputArray dst, int nbElt=-1, int nbFD=-1)
	Fourier descriptors for planed closed curves.

void	cv::ximgproc::transformFD (InputArray src, InputArray t, OutputArray dst, bool fdContour=true)
	transform a contour

Detailed Description

Function Documentation

void cv::ximgproc::contourSampling	(	InputArray	src,
		OutputArray	out,
		int	nbElt
	)

Contour sampling .

Parameters

src	contour type vector<Point> , vector<Point2f> or vector<Point2d>
out	Mat of type CV_64FC2 and nbElt rows
nbElt	number of points in out contour

Ptr<ContourFitting> cv::ximgproc::createContourFitting	(	int	ctr = `1024`,
		int	fd = `16`
	)

create ContourFitting algorithm object

Parameters

ctr	number of Fourier descriptors equal to number of contour points after resampling.
fd	Contour defining second shape (Target).

void cv::ximgproc::fourierDescriptor	(	InputArray	src,
		OutputArray	dst,
		int	nbElt = `-1`,
		int	nbFD = `-1`
	)

Fourier descriptors for planed closed curves.

For more details about this implementation, please seePersoonFu1977

Parameters

src	contour type vector<Point> , vector<Point2f> or vector<Point2d>
dst	Mat of type CV_64FC2 and nbElt rows A VERIFIER
nbElt	number of rows in dst or getOptimalDFTSize rows if nbElt=-1
nbFD	number of FD return in dst dst = [FD(1...nbFD/2) FD(nbFD/2-nbElt+1...:nbElt)]

void cv::ximgproc::transformFD	(	InputArray	src,
		InputArray	t,
		OutputArray	dst,
		bool	fdContour = `true`
	)

transform a contour

Parameters

src	contour or Fourier Descriptors if fd is true
t	transform Mat given by estimateTransformation
dst	Mat of type CV_64FC2 and nbElt rows
fdContour	true src are Fourier Descriptors. fdContour false src is a contour