OpenCV  3.2.0-dev
Open Source Computer Vision
cv::AffineTransformer Class Referenceabstract

Wrapper class for the OpenCV Affine Transformation algorithm. More...

#include "shape_transformer.hpp"

Inheritance diagram for cv::AffineTransformer:
Collaboration diagram for cv::AffineTransformer:

Public Member Functions

virtual float applyTransformation (InputArray input, OutputArray output=noArray())=0
 Apply a transformation, given a pre-estimated transformation parameters. More...
 
virtual void clear ()
 Clears the algorithm state. More...
 
virtual bool empty () const
 Returns true if the Algorithm is empty (e.g. More...
 
virtual void estimateTransformation (InputArray transformingShape, InputArray targetShape, std::vector< DMatch > &matches)=0
 Estimate the transformation parameters of the current transformer algorithm, based on point matches. More...
 
virtual String getDefaultName () const
 Returns the algorithm string identifier. More...
 
virtual bool getFullAffine () const =0
 
virtual void read (const FileNode &fn)
 Reads algorithm parameters from a file storage. More...
 
virtual void save (const String &filename) const
 Saves the algorithm to a file. More...
 
virtual void setFullAffine (bool fullAffine)=0
 
virtual void warpImage (InputArray transformingImage, OutputArray output, int flags=INTER_LINEAR, int borderMode=BORDER_CONSTANT, const Scalar &borderValue=Scalar()) const =0
 Apply a transformation, given a pre-estimated transformation parameters, to an Image. More...
 
virtual void write (FileStorage &fs) const
 Stores algorithm parameters in a file storage. More...
 

Static Public Member Functions

template<typename _Tp >
static Ptr< _Tp > load (const String &filename, const String &objname=String())
 Loads algorithm from the file. More...
 
template<typename _Tp >
static Ptr< _Tp > loadFromString (const String &strModel, const String &objname=String())
 Loads algorithm from a String. More...
 
template<typename _Tp >
static Ptr< _Tp > read (const FileNode &fn)
 Reads algorithm from the file node. More...
 

Protected Member Functions

void writeFormat (FileStorage &fs) const
 

Detailed Description

Wrapper class for the OpenCV Affine Transformation algorithm.

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Member Function Documentation

virtual float cv::ShapeTransformer::applyTransformation ( InputArray  input,
OutputArray  output = noArray() 
)
pure virtualinherited

Apply a transformation, given a pre-estimated transformation parameters.

Parameters
inputContour (set of points) to apply the transformation.
outputOutput contour.
virtual void cv::Algorithm::clear ( )
inlinevirtualinherited

Clears the algorithm state.

Reimplemented in cv::FlannBasedMatcher, cv::DescriptorMatcher, and cv::cuda::DescriptorMatcher.

virtual bool cv::Algorithm::empty ( ) const
inlinevirtualinherited

Returns true if the Algorithm is empty (e.g.

in the very beginning or after unsuccessful read

Reimplemented in cv::DescriptorMatcher, cv::ml::StatModel, cv::Feature2D, cv::BaseCascadeClassifier, and cv::cuda::DescriptorMatcher.

virtual void cv::ShapeTransformer::estimateTransformation ( InputArray  transformingShape,
InputArray  targetShape,
std::vector< DMatch > &  matches 
)
pure virtualinherited

Estimate the transformation parameters of the current transformer algorithm, based on point matches.

Parameters
transformingShapeContour defining first shape.
targetShapeContour defining second shape (Target).
matchesStandard vector of Matches between points.
virtual String cv::Algorithm::getDefaultName ( ) const
virtualinherited

Returns the algorithm string identifier.

This string is used as top level xml/yml node tag when the object is saved to a file or string.

virtual bool cv::AffineTransformer::getFullAffine ( ) const
pure virtual
template<typename _Tp >
static Ptr<_Tp> cv::Algorithm::load ( const String filename,
const String objname = String() 
)
inlinestaticinherited

Loads algorithm from the file.

Parameters
filenameName of the file to read.
objnameThe optional name of the node to read (if empty, the first top-level node will be used)

This is static template method of Algorithm. It's usage is following (in the case of SVM):

Ptr<SVM> svm = Algorithm::load<SVM>("my_svm_model.xml");

In order to make this method work, the derived class must overwrite Algorithm::read(const FileNode& fn).

References cv::Ptr< T >::empty(), cv::FileNode::empty(), cv::FileStorage::getFirstTopLevelNode(), and cv::FileStorage::READ.

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template<typename _Tp >
static Ptr<_Tp> cv::Algorithm::loadFromString ( const String strModel,
const String objname = String() 
)
inlinestaticinherited

Loads algorithm from a String.

Parameters
strModelThe string variable containing the model you want to load.
objnameThe optional name of the node to read (if empty, the first top-level node will be used)

This is static template method of Algorithm. It's usage is following (in the case of SVM):

Ptr<SVM> svm = Algorithm::loadFromString<SVM>(myStringModel);

References CV_WRAP, cv::Ptr< T >::empty(), cv::FileNode::empty(), cv::FileStorage::getFirstTopLevelNode(), cv::FileStorage::MEMORY, and cv::FileStorage::READ.

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virtual void cv::Algorithm::read ( const FileNode fn)
inlinevirtualinherited

Reads algorithm parameters from a file storage.

Reimplemented in cv::FlannBasedMatcher, cv::DescriptorMatcher, and cv::Feature2D.

template<typename _Tp >
static Ptr<_Tp> cv::Algorithm::read ( const FileNode fn)
inlinestaticinherited

Reads algorithm from the file node.

This is static template method of Algorithm. It's usage is following (in the case of SVM):

cv::FileStorage fsRead("example.xml", FileStorage::READ);
Ptr<SVM> svm = Algorithm::read<SVM>(fsRead.root());

In order to make this method work, the derived class must overwrite Algorithm::read(const FileNode& fn) and also have static create() method without parameters (or with all the optional parameters)

References cv::Ptr< T >::empty().

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virtual void cv::Algorithm::save ( const String filename) const
virtualinherited

Saves the algorithm to a file.

In order to make this method work, the derived class must implement Algorithm::write(FileStorage& fs).

virtual void cv::AffineTransformer::setFullAffine ( bool  fullAffine)
pure virtual
virtual void cv::ShapeTransformer::warpImage ( InputArray  transformingImage,
OutputArray  output,
int  flags = INTER_LINEAR,
int  borderMode = BORDER_CONSTANT,
const Scalar borderValue = Scalar() 
) const
pure virtualinherited

Apply a transformation, given a pre-estimated transformation parameters, to an Image.

Parameters
transformingImageInput image.
outputOutput image.
flagsImage interpolation method.
borderModeborder style.
borderValueborder value.
virtual void cv::Algorithm::write ( FileStorage fs) const
inlinevirtualinherited

Stores algorithm parameters in a file storage.

Reimplemented in cv::FlannBasedMatcher, cv::DescriptorMatcher, and cv::Feature2D.

void cv::Algorithm::writeFormat ( FileStorage fs) const
protectedinherited

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