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
typedef InterpolationMethod	Method
	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 55 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 156 of file Interpolator.h.

typedef InterpolationMethod te::rst::Interpolator::Method

Allowed interpolation methods.

Definition at line 62 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.

References initialize().

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

virtual

Destructor.

Definition at line 66 of file Interpolator.cpp.

References m_function.

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, te::rst::Raster::getIValue(), te::rst::Raster::getValue(), m_bicBbufferImag, m_bicBbufferReal, m_bicBufCol, m_bicBufRow, m_bicColBound, m_bicGridCol, m_bicGridRow, m_bicHSum, m_bicHWeights, m_bicKernel, m_bicOffsetX, m_bicOffsetY, m_bicReadImagValue, m_bicReadRealValue, m_bicRowAccumImag, m_bicRowAccumReal, m_bicRowBound, m_bicRowsValuesImag, m_bicRowsValuesReal, m_bicVSum, m_bicVWeights, m_noDataValues, m_raster, and nearestNeighborGetValue().

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.

References te::rst::Raster::getValue(), m_bilColDifMax, m_bilColDifMin, m_bilColMax, m_bilColMin, m_bilDistances, m_bilLastCol, m_bilLastRow, m_bilRowDifMax, m_bilRowDifMin, m_bilRowMax, m_bilRowMin, m_bilValues, m_bilWeights, m_noDataValues, m_raster, and nearestNeighborGetValue().

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.

References m_method, and m_raster.

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.

Note: The caller of this method must be aware that the returned value may be outside the original input rasters valid values range.

Definition at line 93 of file Interpolator.h.

References b.

Referenced by BOOST_AUTO_TEST_CASE(), te::rp::ComposeBands(), te::mem::ExpansibleRaster::createMultiResolution(), te::rp::GeoMosaic::execute(), te::rp::Register::execute(), te::rp::TiePointsMosaic::execute(), getValues(), InterpolateIn(), te::rp::IHSFusion::loadIHSData(), te::rp::TiePointsLocatorStrategy::loadRasterData(), te::rp::PCAFusion::loadRessampledRaster(), and te::rp::RasterResample().

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..

Note: The caller of this method must be aware that the returned values may be outside the original input rasters valid values range.

Definition at line 71 of file Interpolator.cpp.

References b, te::rst::Raster::getNumberOfBands(), getValue(), and m_raster.

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 te::rst::Bicubic, bicubicGetValue(), te::rst::Bilinear, bilinearGetValue(), te::rst::Raster::getAccessPolicy(), te::rst::Raster::getBand(), te::rst::Raster::getNumberOfBands(), te::rst::Raster::getNumberOfColumns(), te::rst::Raster::getNumberOfRows(), te::rst::Band::getProperty(), m_bicColBound, m_bicKernel, m_bicRowBound, m_bilLastCol, m_bilLastRow, m_bilValues, m_function, m_method, m_nnLastCol, m_nnLastRow, te::rst::BandProperty::m_noDataValue, m_noDataValues, m_raster, te::rst::NearestNeighbor, nearestNeighborGetValue(), te::common::RAccess, and rasterPointer.

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 b, te::rst::Raster::getValue(), m_nnCR, m_nnLastCol, m_nnLastRow, m_nnRR, m_noDataValues, m_raster, and te::rst::Round().

Referenced by bicubicGetValue(), bilinearGetValue(), and initialize().

Member Data Documentation

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

protected

Definition at line 207 of file Interpolator.h.

Referenced by bicubicGetValue().

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

protected

Definition at line 206 of file Interpolator.h.

Referenced by bicubicGetValue().

unsigned te::rst::Interpolator::m_bicBufCol

protected

Definition at line 203 of file Interpolator.h.

Referenced by bicubicGetValue().

unsigned te::rst::Interpolator::m_bicBufRow

protected

Definition at line 202 of file Interpolator.h.

Referenced by bicubicGetValue().

double te::rst::Interpolator::m_bicColBound

protected

Last column available for bicubic interpolation.

Definition at line 220 of file Interpolator.h.

Referenced by bicubicGetValue(), and initialize().

unsigned te::rst::Interpolator::m_bicGridCol

protected

Definition at line 201 of file Interpolator.h.

Referenced by bicubicGetValue().

unsigned te::rst::Interpolator::m_bicGridRow

protected

Definition at line 200 of file Interpolator.h.

Referenced by bicubicGetValue().

double te::rst::Interpolator::m_bicHSum

protected

Definition at line 213 of file Interpolator.h.

Referenced by bicubicGetValue().

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

protected

Definition at line 211 of file Interpolator.h.

Referenced by bicubicGetValue().

double te::rst::Interpolator::m_bicKernel

protected

Definition at line 210 of file Interpolator.h.

Referenced by bicubicGetValue(), and initialize().

double te::rst::Interpolator::m_bicOffsetX

protected

Definition at line 208 of file Interpolator.h.

Referenced by bicubicGetValue().

double te::rst::Interpolator::m_bicOffsetY

protected

Definition at line 209 of file Interpolator.h.

Referenced by bicubicGetValue().

double te::rst::Interpolator::m_bicReadImagValue

protected

Definition at line 205 of file Interpolator.h.

Referenced by bicubicGetValue().

double te::rst::Interpolator::m_bicReadRealValue

protected

Definition at line 204 of file Interpolator.h.

Referenced by bicubicGetValue().

double te::rst::Interpolator::m_bicRowAccumImag

protected

Definition at line 216 of file Interpolator.h.

Referenced by bicubicGetValue().

double te::rst::Interpolator::m_bicRowAccumReal

protected

Definition at line 215 of file Interpolator.h.

Referenced by bicubicGetValue().

double te::rst::Interpolator::m_bicRowBound

protected

Last row available for bicubic interpolation.

Definition at line 219 of file Interpolator.h.

Referenced by bicubicGetValue(), and initialize().

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

protected

Definition at line 218 of file Interpolator.h.

Referenced by bicubicGetValue().

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

protected

Definition at line 217 of file Interpolator.h.

Referenced by bicubicGetValue().

double te::rst::Interpolator::m_bicVSum

protected

Definition at line 214 of file Interpolator.h.

Referenced by bicubicGetValue().

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

protected

Definition at line 212 of file Interpolator.h.

Referenced by bicubicGetValue().

double te::rst::Interpolator::m_bilColDifMax

protected

Maximum difference between columns (min/max).

Definition at line 192 of file Interpolator.h.

Referenced by bilinearGetValue().

double te::rst::Interpolator::m_bilColDifMin

protected

Minimum difference between columns (min/max).

Definition at line 191 of file Interpolator.h.

Referenced by bilinearGetValue().

double te::rst::Interpolator::m_bilColMax

protected

Maximum column for bilinear interpolation.

Definition at line 188 of file Interpolator.h.

Referenced by bilinearGetValue().

double te::rst::Interpolator::m_bilColMin

protected

Minimum column for bilinear interpolation.

Definition at line 187 of file Interpolator.h.

Referenced by bilinearGetValue().

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

protected

Bilinear distances.

Definition at line 193 of file Interpolator.h.

Referenced by bilinearGetValue().

double te::rst::Interpolator::m_bilLastCol

protected

Last column available for bilinear interpolation.

Definition at line 197 of file Interpolator.h.

Referenced by bilinearGetValue(), and initialize().

double te::rst::Interpolator::m_bilLastRow

protected

Last row available for bilinear interpolation.

Definition at line 196 of file Interpolator.h.

Referenced by bilinearGetValue(), and initialize().

double te::rst::Interpolator::m_bilRowDifMax

protected

Maximum difference between rows (min/max).

Definition at line 190 of file Interpolator.h.

Referenced by bilinearGetValue().

double te::rst::Interpolator::m_bilRowDifMin

protected

Minimum difference between rows (min/max).

Definition at line 189 of file Interpolator.h.

Referenced by bilinearGetValue().

double te::rst::Interpolator::m_bilRowMax

protected

Maximum row for bilinear interpolation.

Definition at line 186 of file Interpolator.h.

Referenced by bilinearGetValue().

double te::rst::Interpolator::m_bilRowMin

protected

Minimum row for bilinear interpolation.

Definition at line 185 of file Interpolator.h.

Referenced by bilinearGetValue().

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

protected

Bilinear values;.

Definition at line 195 of file Interpolator.h.

Referenced by bilinearGetValue(), and initialize().

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

protected

Bilinear weights;.

Definition at line 194 of file Interpolator.h.

Referenced by bilinearGetValue().

InterpolationFunction te::rst::Interpolator::m_function

protected

The current interpolation function pointer.

Definition at line 173 of file Interpolator.h.

Referenced by initialize(), and ~Interpolator().

int te::rst::Interpolator::m_method

protected

The interpolation method.

Definition at line 172 of file Interpolator.h.

Referenced by clone(), and initialize().

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

protected

Definition at line 178 of file Interpolator.h.

Referenced by nearestNeighborGetValue().

double te::rst::Interpolator::m_nnLastCol

protected

Last column available for nearest Neighbor interpolation.

Definition at line 181 of file Interpolator.h.

Referenced by initialize(), and nearestNeighborGetValue().

double te::rst::Interpolator::m_nnLastRow

protected

Last row available for nearest Neighbor interpolation.

Definition at line 180 of file Interpolator.h.

Referenced by initialize(), and nearestNeighborGetValue().

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

protected

Definition at line 179 of file Interpolator.h.

Referenced by nearestNeighborGetValue().

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

protected

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

Definition at line 174 of file Interpolator.h.

Referenced by bicubicGetValue(), bilinearGetValue(), initialize(), and nearestNeighborGetValue().

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

protected

My input raster.

Definition at line 171 of file Interpolator.h.

Referenced by bicubicGetValue(), bilinearGetValue(), clone(), getValues(), initialize(), and nearestNeighborGetValue().

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

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation