cv::reg::MapAffine Class Reference

#include <opencv2/reg/mapaffine.hpp>

Inheritance diagram for cv::reg::MapAffine:

Public Member Functions
	MapAffine ()
	MapAffine (InputArray linTr, InputArray shift)
	~MapAffine ()
void	compose (cv::Ptr< Map > map) CV_OVERRIDE
const cv::Matx< double, 2, 2 > &	getLinTr () const
void	getLinTr (OutputArray linTr) const
const cv::Vec< double, 2 > &	getShift () const
void	getShift (OutputArray shift) const
cv::Ptr< Map >	inverseMap () const CV_OVERRIDE
void	inverseWarp (InputArray img1, OutputArray img2) const CV_OVERRIDE
void	scale (double factor) CV_OVERRIDE
Public Member Functions inherited from cv::reg::Map
virtual	~Map ()
virtual void	warp (InputArray img1, OutputArray img2) const

Detailed Description

Defines an affine transformation

Constructor & Destructor Documentation

MapAffine() [1/2]

cv::reg::MapAffine::MapAffine

(

)

Python:
	cv.reg_MapAffine(		) ->	<reg_MapAffine object>
	cv.reg_MapAffine(	linTr, shift	) ->	<reg_MapAffine object>

Default constructor builds an identity map

MapAffine() [2/2]

cv::reg::MapAffine::MapAffine	(	InputArray	linTr,
		InputArray	shift
	)

Python:
	cv.reg_MapAffine(		) ->	<reg_MapAffine object>
	cv.reg_MapAffine(	linTr, shift	) ->	<reg_MapAffine object>

Constructor providing explicit values

Parameters

[in]	linTr	Linear part of the affine transformation
[in]	shift	Displacement part of the affine transformation

~MapAffine()

cv::reg::MapAffine::~MapAffine

(

)

Destructor

Member Function Documentation

compose()

void cv::reg::MapAffine::compose ( cv::Ptr< Map >  map )

virtual

Python:
	cv.reg_MapAffine.compose(	map	) ->	None

Changes the map composing the current transformation with the one provided in the call. The order is first the current transformation, then the input argument.

Parameters

[in]

map

Transformation to compose with.

Implements cv::reg::Map.

getLinTr() [1/2]

const cv::Matx<double, 2, 2>& cv::reg::MapAffine::getLinTr ( ) const

inline

Python:
	cv.reg_MapAffine.getLinTr(	[, linTr]	) ->	linTr

Return linear part of the affine transformation

Returns

Linear part of the affine transformation

getLinTr() [2/2]

void cv::reg::MapAffine::getLinTr ( OutputArray  linTr ) const

inline

Python:
	cv.reg_MapAffine.getLinTr(	[, linTr]	) ->	linTr

getShift() [1/2]

const cv::Vec<double, 2>& cv::reg::MapAffine::getShift ( ) const

inline

Python:
	cv.reg_MapAffine.getShift(	[, shift]	) ->	shift

Return displacement part of the affine transformation

Returns

Displacement part of the affine transformation

getShift() [2/2]

void cv::reg::MapAffine::getShift ( OutputArray  shift ) const

inline

Python:
	cv.reg_MapAffine.getShift(	[, shift]	) ->	shift

inverseMap()

cv::Ptr<Map> cv::reg::MapAffine::inverseMap ( ) const

virtual

Python:
	cv.reg_MapAffine.inverseMap(		) ->	retval

Calculates the inverse map

Returns

Inverse map

Implements cv::reg::Map.

inverseWarp()

void cv::reg::MapAffine::inverseWarp ( InputArray  img1, OutputArray  img2  ) const

virtual

Python:
	cv.reg_MapAffine.inverseWarp(	img1[, img2]	) ->	img2

Warps image to a new coordinate frame. The calculation is img2(x)=img1(T(x)), so in fact this is the inverse warping as we are taking the value of img1 with the forward transformation of the points.

Parameters

[in]	img1	Original image
[out]	img2	Warped image

Implements cv::reg::Map.

scale()

void cv::reg::MapAffine::scale ( double  factor )

virtual

Python:
	cv.reg_MapAffine.scale(	factor	) ->	None

Scales the map by a given factor as if the coordinates system is expanded/compressed by that factor.

Parameters

[in]

factor

Expansion if bigger than one, compression if smaller than one

Implements cv::reg::Map.

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

• opencv2/reg/mapaffine.hpp