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vigra_ext::VigQuotientEstimator Class Reference

This class estimates the parameters of the vignetting curve. More...

#include <VigQuotientEstimator.h>

Inheritance diagram for vigra_ext::VigQuotientEstimator:

[legend]List of all members.

Public Types
typedef std::vector< double >	Param
Public Member Functions
	VigQuotientEstimator (double delta)
virtual bool	estimate (const std::vector< const PointPair * > &data, Param &p) const
	Compute the vignetting curve defined by 3 points.
bool	leastSquaresEstimate (const std::vector< const PointPair * > &data, Param &p) const
	Compute a least squares estimate.
bool	agree (Param &p, const PointPair &data) const
	Return true if the distance between the line defined by the parameters and the given point is smaller than 'delta' (see constructor).
Protected Attributes
double	m_delta

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Detailed Description

This class estimates the parameters of the vignetting curve.

We assume the following function: I1/I2 = (1 + p_1*r_1^2 + p_2*r_1^4 + p_3*r_1^6) / (1 + a*r_2^2 + b*r_2^4 + c*r_2^6)

Author: Pablo d'Angelo

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Member Typedef Documentation

typedef std::vector<double> vigra_ext::VigQuotientEstimator::Param

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Constructor & Destructor Documentation

vigra_ext::VigQuotientEstimator::VigQuotientEstimator (  double  delta  )  [inline]

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Member Function Documentation

bool vigra_ext::VigQuotientEstimator::agree (  Param &  p, const PointPair &  data )  const [inline]

Return true if the distance between the line defined by the parameters and the given point is smaller than 'delta' (see constructor). Parameters: parameters  The line parameters [n_x,n_y,a_x,a_y]. data  Check that the distance between this point and the line is smaller than 'delta'.

virtual bool vigra_ext::VigQuotientEstimator::estimate (  const std::vector< const PointPair * > &  data, Param &  p )  const [inline, virtual]

Compute the vignetting curve defined by 3 points. This results in the following equations: z = I_1 / I_2 A*p = 1-z; with A = [ r_1^2-r_2^2 r_1^4-r_2^4 r_1^6-r_2^6 ] .. .. .. Parameters: data  A vector containing three 2D points. parameters  This vector is filled with the computed parameters, if fitting was succesfull Returns: fitting was succesfull

bool vigra_ext::VigQuotientEstimator::leastSquaresEstimate (  const std::vector< const PointPair * > &  data, Param &  p )  const [inline]

Compute a least squares estimate.

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Member Data Documentation

double vigra_ext::VigQuotientEstimator::m_delta [protected]

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The documentation for this class was generated from the following file:

• hugin_base/vigra_ext/VigQuotientEstimator.h

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