It interpolates one pixel based on a selected algorithm. Methods currently available are Nearest Neighbor, Bilinear, and Bicubic. More...

#include <Interpolator.h>

Inheritance diagram for te::rst::Interpolator:

Public Types
enum	Method { NearestNeighbor = 1, Bilinear = 2, Bicubic = 3 }
	Allowed interpolation methods. More...

Public Member Functions
te::rst::Interpolator *	clone () const
	Create a clone copy of this instance. More...

void	getValue (const double &c, const double &r, std::complex< double > &v, const std::size_t &b)
	Get the interpolated value at specific band. More...

void	getValues (const double &c, const double &r, std::vector< std::complex< double > > &values)
	Get the interpolated value for all bands. More...

	Interpolator (Raster const *r, int m)
	Constructor. More...

	Interpolator (Raster const *r, int m, const std::vector< std::complex< double > > &noDataValues)
	Constructor. More...

virtual	~Interpolator ()
	Destructor. More...

Protected Types
typedef void(Interpolator::*	InterpolationFunction )(const double &c, const double &r, std::complex< double > &v, const std::size_t &b)
	Type definition for the interpolation function. More...

Protected Member Functions
void	bicubicGetValue (const double &c, const double &r, std::complex< double > &v, const std::size_t &b)
	Bicubic interpolation method. More...

void	bilinearGetValue (const double &c, const double &r, std::complex< double > &v, const std::size_t &b)
	Bilinear interpolation method. More...

bool	initialize (Raster const *const rasterPointer, int method, const std::vector< std::complex< double > > &noDataValues)
	Initialize this instance.. More...

void	nearestNeighborGetValue (const double &c, const double &r, std::complex< double > &v, const std::size_t &b)
	Nearest neighbor interpolation method. More...

Protected Attributes
double	m_bicBbufferImag [4][4]

double	m_bicBbufferReal [4][4]

unsigned	m_bicBufCol

unsigned	m_bicBufRow

double	m_bicColBound
	Last column available for bicubic interpolation. More...

unsigned	m_bicGridCol

unsigned	m_bicGridRow

double	m_bicHSum

double	m_bicHWeights [4]

double	m_bicKernel

double	m_bicOffsetX

double	m_bicOffsetY

double	m_bicReadImagValue

double	m_bicReadRealValue

double	m_bicRowAccumImag

double	m_bicRowAccumReal

double	m_bicRowBound
	Last row available for bicubic interpolation. More...

double	m_bicRowsValuesImag [4]

double	m_bicRowsValuesReal [4]

double	m_bicVSum

double	m_bicVWeights [4]

double	m_bilColDifMax
	Maximum difference between columns (min/max). More...

double	m_bilColDifMin
	Minimum difference between columns (min/max). More...

double	m_bilColMax
	Maximum column for bilinear interpolation. More...

double	m_bilColMin
	Minimum column for bilinear interpolation. More...

double	m_bilDistances [4]
	Bilinear distances. More...

double	m_bilLastCol
	Last column available for bilinear interpolation. More...

double	m_bilLastRow
	Last row available for bilinear interpolation. More...

double	m_bilRowDifMax
	Maximum difference between rows (min/max). More...

double	m_bilRowDifMin
	Minimum difference between rows (min/max). More...

double	m_bilRowMax
	Maximum row for bilinear interpolation. More...

double	m_bilRowMin
	Minimum row for bilinear interpolation. More...

std::vector< std::complex < double > >	m_bilValues
	Bilinear values;. More...

double	m_bilWeights [4]
	Bilinear weights;. More...

InterpolationFunction	m_function
	The current interpolation function pointer. More...

int	m_method
	The interpolation method. More...

unsigned int	m_nnCR

double	m_nnLastCol
	Last column available for nearest Neighbor interpolation. More...

double	m_nnLastRow
	Last row available for nearest Neighbor interpolation. More...

unsigned int	m_nnRR

std::vector< std::complex < double > >	m_noDataValues
	Raster no-data values (for each band);. More...

Raster const *	m_raster
	My input raster. More...

Detailed Description

It interpolates one pixel based on a selected algorithm. Methods currently available are Nearest Neighbor, Bilinear, and Bicubic.

Definition at line 54 of file Interpolator.h.

Member Typedef Documentation

typedef void(Interpolator::* te::rst::Interpolator::InterpolationFunction)(const double &c, const double &r, std::complex< double > &v, const std::size_t &b)

protected

Type definition for the interpolation function.

Parameters

c	The column position (double).
r	The row position (double).
v	The output value.
b	The band to obtain the value.

Definition at line 158 of file Interpolator.h.

Member Enumeration Documentation

enum te::rst::Interpolator::Method

Allowed interpolation methods.

Enumerator
NearestNeighbor	Near neighborhood interpolation method.
Bilinear	Bilinear interpolation method.
Bicubic	Bicubic interpolation method.

Definition at line 61 of file Interpolator.h.

Constructor & Destructor Documentation

te::rst::Interpolator::Interpolator	(	Raster const *	r,
		int	m
	)

Constructor.

Parameters

r	The raster where to resample.
m	The method of interpolation to apply.

Definition at line 49 of file Interpolator.cpp.

References initialize().

te::rst::Interpolator::Interpolator	(	Raster const *	r,
		int	m,
		const std::vector< std::complex< double > > &	noDataValues
	)

Constructor.

Parameters

r	The raster where to resample.
m	The method of interpolation to apply.
noDataValues	A vector with no-data values (will overwride the input raster no-data values) or an empty vectory if the input raster no-data values must be used.

Definition at line 57 of file Interpolator.cpp.

te::rst::Interpolator::~Interpolator ( )

virtual

Destructor.

Definition at line 66 of file Interpolator.cpp.

Member Function Documentation

void te::rst::Interpolator::bicubicGetValue	(	const double &	c,
		const double &	r,
		std::complex< double > &	v,
		const std::size_t &	b
	)

protected

Bicubic interpolation method.

Parameters

c	The column position (double).
r	The row position (double).
v	The output value.
b	The band to obtain the value.

Definition at line 177 of file Interpolator.cpp.

References BICUBIC_KERNEL.

Referenced by initialize().

void te::rst::Interpolator::bilinearGetValue	(	const double &	c,
		const double &	r,
		std::complex< double > &	v,
		const std::size_t &	b
	)

protected

Bilinear interpolation method.

Parameters

c	The column position (double).
r	The row position (double).
v	The output value.
b	The band to obtain the value.

Definition at line 106 of file Interpolator.cpp.

Referenced by initialize().

te::rst::Interpolator * te::rst::Interpolator::clone ( ) const

Create a clone copy of this instance.

Returns: A clone copy of this instance (the caller of this method must take the ownership of the returned object).

Definition at line 85 of file Interpolator.cpp.

void te::rst::Interpolator::getValue	(	const double &	c,
		const double &	r,
		std::complex< double > &	v,
		const std::size_t &	b
	)

inline

Get the interpolated value at specific band.

Parameters

c	The column position (double).
r	The row position (double).
v	The output value or the current input raster no-data value if the requested coordinates are outside the valid image bounds.
b	The band to obtain the value.

Definition at line 96 of file Interpolator.h.

Referenced by te::rp::Blender::euclideanDistanceMethodImp(), te::rp::GeoMosaic::execute(), te::rp::Register::execute(), te::rp::TiePointsMosaic::execute(), InterpolateIn(), te::rp::IHSFusion::loadIHSData(), te::rp::TiePointsLocator::loadRasterData(), te::rp::PCAFusion::loadRessampledRaster(), and te::rp::Blender::noBlendMethodImp().

void te::rst::Interpolator::getValues	(	const double &	c,
		const double &	r,
		std::vector< std::complex< double > > &	values
	)

Get the interpolated value for all bands.

Parameters

c	The column position (double).
r	The row position (double).
v	A vector of values, for all bands, or the current input raster no-data values if the requested coordinates are outside the valid image bounds..

Definition at line 71 of file Interpolator.cpp.

Referenced by te::rst::Raster::resample().

bool te::rst::Interpolator::initialize	(	Raster const *const	rasterPointer,
		int	method,
		const std::vector< std::complex< double > > &	noDataValues
	)

protected

Initialize this instance..

Parameters

r	The raster where to resample.
method	The method of interpolation to apply.
noDataValues	A vector with no-data values (will overwride the input raster no-data values) or an empty vectory if the input raster no-data values must be used.

Returns: true if OK, false on errors.

Definition at line 256 of file Interpolator.cpp.

References bicubicGetValue(), bilinearGetValue(), te::rst::Raster::getAccessPolicy(), te::rst::Raster::getBand(), te::rst::Raster::getNumberOfBands(), te::rst::Band::getProperty(), te::rst::BandProperty::m_noDataValue, nearestNeighborGetValue(), and te::common::RAccess.

Referenced by Interpolator().

void te::rst::Interpolator::nearestNeighborGetValue	(	const double &	c,
		const double &	r,
		std::complex< double > &	v,
		const std::size_t &	b
	)

protected

Nearest neighbor interpolation method.

Parameters

c	The column position (double).
r	The row position (double).
v	The output value.
b	The band to obtain the value.

Definition at line 91 of file Interpolator.cpp.

References te::rst::Round().

Referenced by initialize().

Member Data Documentation

double te::rst::Interpolator::m_bicBbufferImag[4][4]

protected

Definition at line 209 of file Interpolator.h.

double te::rst::Interpolator::m_bicBbufferReal[4][4]

protected

Definition at line 208 of file Interpolator.h.

unsigned te::rst::Interpolator::m_bicBufCol

protected

Definition at line 205 of file Interpolator.h.

unsigned te::rst::Interpolator::m_bicBufRow

protected

Definition at line 204 of file Interpolator.h.

double te::rst::Interpolator::m_bicColBound

protected

Last column available for bicubic interpolation.

Definition at line 222 of file Interpolator.h.

unsigned te::rst::Interpolator::m_bicGridCol

protected

Definition at line 203 of file Interpolator.h.

unsigned te::rst::Interpolator::m_bicGridRow

protected

Definition at line 202 of file Interpolator.h.

double te::rst::Interpolator::m_bicHSum

protected

Definition at line 215 of file Interpolator.h.

double te::rst::Interpolator::m_bicHWeights[4]

protected

Definition at line 213 of file Interpolator.h.

double te::rst::Interpolator::m_bicKernel

protected

Definition at line 212 of file Interpolator.h.

double te::rst::Interpolator::m_bicOffsetX

protected

Definition at line 210 of file Interpolator.h.

double te::rst::Interpolator::m_bicOffsetY

protected

Definition at line 211 of file Interpolator.h.

double te::rst::Interpolator::m_bicReadImagValue

protected

Definition at line 207 of file Interpolator.h.

double te::rst::Interpolator::m_bicReadRealValue

protected

Definition at line 206 of file Interpolator.h.

double te::rst::Interpolator::m_bicRowAccumImag

protected

Definition at line 218 of file Interpolator.h.

double te::rst::Interpolator::m_bicRowAccumReal

protected

Definition at line 217 of file Interpolator.h.

double te::rst::Interpolator::m_bicRowBound

protected

Last row available for bicubic interpolation.

Definition at line 221 of file Interpolator.h.

double te::rst::Interpolator::m_bicRowsValuesImag[4]

protected

Definition at line 220 of file Interpolator.h.

double te::rst::Interpolator::m_bicRowsValuesReal[4]

protected

Definition at line 219 of file Interpolator.h.

double te::rst::Interpolator::m_bicVSum

protected

Definition at line 216 of file Interpolator.h.

double te::rst::Interpolator::m_bicVWeights[4]

protected

Definition at line 214 of file Interpolator.h.

double te::rst::Interpolator::m_bilColDifMax

protected

Maximum difference between columns (min/max).

Definition at line 194 of file Interpolator.h.

double te::rst::Interpolator::m_bilColDifMin

protected

Minimum difference between columns (min/max).

Definition at line 193 of file Interpolator.h.

double te::rst::Interpolator::m_bilColMax

protected

Maximum column for bilinear interpolation.

Definition at line 190 of file Interpolator.h.

double te::rst::Interpolator::m_bilColMin

protected

Minimum column for bilinear interpolation.

Definition at line 189 of file Interpolator.h.

double te::rst::Interpolator::m_bilDistances[4]

protected

Bilinear distances.

Definition at line 195 of file Interpolator.h.

double te::rst::Interpolator::m_bilLastCol

protected

Last column available for bilinear interpolation.

Definition at line 199 of file Interpolator.h.

double te::rst::Interpolator::m_bilLastRow

protected

Last row available for bilinear interpolation.

Definition at line 198 of file Interpolator.h.

double te::rst::Interpolator::m_bilRowDifMax

protected

Maximum difference between rows (min/max).

Definition at line 192 of file Interpolator.h.

double te::rst::Interpolator::m_bilRowDifMin

protected

Minimum difference between rows (min/max).

Definition at line 191 of file Interpolator.h.

double te::rst::Interpolator::m_bilRowMax

protected

Maximum row for bilinear interpolation.

Definition at line 188 of file Interpolator.h.

double te::rst::Interpolator::m_bilRowMin

protected

Minimum row for bilinear interpolation.

Definition at line 187 of file Interpolator.h.

std::vector<std::complex<double> > te::rst::Interpolator::m_bilValues

protected

Bilinear values;.

Definition at line 197 of file Interpolator.h.

double te::rst::Interpolator::m_bilWeights[4]

protected

Bilinear weights;.

Definition at line 196 of file Interpolator.h.

InterpolationFunction te::rst::Interpolator::m_function

protected

The current interpolation function pointer.

Definition at line 175 of file Interpolator.h.

int te::rst::Interpolator::m_method

protected

The interpolation method.

Definition at line 174 of file Interpolator.h.

unsigned int te::rst::Interpolator::m_nnCR

protected

Definition at line 180 of file Interpolator.h.

double te::rst::Interpolator::m_nnLastCol

protected

Last column available for nearest Neighbor interpolation.

Definition at line 183 of file Interpolator.h.

double te::rst::Interpolator::m_nnLastRow

protected

Last row available for nearest Neighbor interpolation.

Definition at line 182 of file Interpolator.h.

unsigned int te::rst::Interpolator::m_nnRR

protected

Definition at line 181 of file Interpolator.h.

std::vector< std::complex<double> > te::rst::Interpolator::m_noDataValues

protected

Raster no-data values (for each band);.

Definition at line 176 of file Interpolator.h.

Raster const* te::rst::Interpolator::m_raster

protected

My input raster.

Definition at line 173 of file Interpolator.h.

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

C:/BB_TL5/terralib5/src/terralib/raster/Interpolator.h
C:/BB_TL5/terralib5/src/terralib/raster/Interpolator.cpp

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation