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fl::PointAffine Class Reference

#include <point.h>

Inheritance diagram for fl::PointAffine:

List of all members.

Public Methods
	PointAffine ()
	PointAffine (const Point &p)
	PointAffine (const PointInterest &p)
	PointAffine (std::istream &stream)
	PointAffine (const Matrix< double > &S)
	Constructs from a patch matrix. S = ! this->rectification().
Matrix< double >	rectification () const
	Computes the 3x3 (affine) homography from the image patch indicated by this point to the normalized form.
Matrix< double >	projection () const
	Computes the 3x3 (affine) homography from the normalized form back into the image patch indicated by this point.
virtual void	read (std::istream &stream)
virtual void	write (std::ostream &stream, bool withName=false)
	withName is ignored, and no class id is ever written for Points
Public Attributes
Matrix2x2< double >	A
float	angle
	characteristic angle; generally the direction of the gradient

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Constructor & Destructor Documentation

PointAffine::PointAffine (    )

PointAffine::PointAffine (  const Point &    p )

PointAffine::PointAffine (  const PointInterest &    p )

PointAffine::PointAffine (  std::istream &    stream )

PointAffine::PointAffine (  const Matrix< double > &    S )

Constructs from a patch matrix. S = ! this->rectification().

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Member Function Documentation

Matrix< double > PointAffine::projection (    )

Computes the 3x3 (affine) homography from the normalized form back into the image patch indicated by this point.

void PointAffine::read (  std::istream &    stream )  [virtual]

Reimplemented from fl::PointInterest.

Matrix< double > PointAffine::rectification (    )

Computes the 3x3 (affine) homography from the image patch indicated by this point to the normalized form.

void PointAffine::write (  std::ostream &    stream, bool    withName = false )  [virtual]

withName is ignored, and no class id is ever written for Points Reimplemented from fl::PointInterest.

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Member Data Documentation

Matrix2x2<double> fl::PointAffine::A

The matrix A is the 2x2 transformation from a rectified patch back to the original image. It is the same as the "U" matrix in Krystian Mikolajczyk's paper "An affine invariant interest point detector".

float fl::PointAffine::angle

characteristic angle; generally the direction of the gradient

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

• point.h
• Point.cc

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