USGS Astrogeology Isis API

Consistent dividing out of photometric model at given an- gles and putting it back in at reference incidence but zero phase. Let the reference incidence default to zero. For Hapke model only, the photometric function multiplied back in will be modified to take out opposition effect. This requires saving the actual value of B0 while temporarily setting it to zero in the common block to compute the over- all normalization.

Definition at line 52 of file Albedo.h.


Public Member Functions
	Albedo (Pvl &pvl, PhotoModel &pmodel)
virtual	~Albedo ()
std::string	AlgorithmName () const
	Return normalization algorithm name.
void	CalcNrmAlbedo (double pha, double inc, double ema, double dn, double &albedo, double &mult, double &base)
	Calculate the normalization albedo using photometric angle information.
void	CalcNrmAlbedo (double pha, double inc, double ema, double deminc, double demema, double dn, double &albedo, double &mult, double &base)
	Calculate the normalization albedo using photometric angle information.
virtual void	SetNormWavelength (double wavelength)
	Set the wavelength parameter.
Protected Member Functions
virtual void	NormModelAlgorithm (double pha, double inc, double ema, double dn, double &albedo, double &mult, double &base)
virtual void	NormModelAlgorithm (double pha, double inc, double ema, double deminc, double demema, double dn, double &albedo, double &mult, double &base)
void	SetAlgorithmName (std::string name)
PhotoModel *	GetPhotoModel ()
AtmosModel *	GetAtmosModel ()
Protected Attributes
double	p_normWavelength
Private Member Functions
void	SetNormIncref (const double incref)
	Set the normalization function parameter.
void	SetNormIncmat (const double incmat)
	Set the normalization function parameter.
void	SetNormThresh (const double thresh)
	Set the normalization function parameter.
void	SetNormAlbedo (const double albedo)
	Set the normalization function parameter.
Private Attributes
double	p_normPsurfref
double	p_normIncref
double	p_normThresh
double	p_normIncmat
double	p_normAlbedo

Member Function Documentation

std::string Isis::NormModel::AlgorithmName ( ) const [inline, inherited]

Return normalization algorithm name.

Definition at line 59 of file NormModel.h.

References Isis::NormModel::p_normAlgorithmName.

void Isis::NormModel::CalcNrmAlbedo	(	double	pha,
		double	inc,
		double	ema,
		double	deminc,
		double	demema,
		double	dn,
		double &	albedo,
		double &	mult,
		double &	base
	)			`[inherited]`

Calculate the normalization albedo using photometric angle information.

Parameters:

	pha	input phase angle
	inc	input incidence angle for ellipsoid
	ema	input emission angle for ellipsoid
	deminc	input incidence angle for dem
	demema	input emission angle for dem
	dn	input albedo value

Definition at line 83 of file NormModel.cpp.

void Isis::NormModel::CalcNrmAlbedo	(	double	pha,
		double	inc,
		double	ema,
		double	dn,
		double &	albedo,
		double &	mult,
		double &	base
	)			`[inherited]`

Calculate the normalization albedo using photometric angle information.

Parameters:

	pha	input phase angle
	inc	input incidence angle
	ema	input emission angle
	dn	input albedo value

Definition at line 58 of file NormModel.cpp.

Referenced by Isis::Photometry::Compute().

void Isis::Albedo::SetNormAlbedo ( const double albedo ) [private]

Set the normalization function parameter.

This is the albedo that the image will be normalized to have. To construct mosaics, the same value of albedo should be used for all images to achieve a uniform result.

Parameters:

albedo

Normalization function parameter

Definition at line 112 of file Albedo.cpp.

References p_normAlbedo.

Referenced by Albedo().

void Isis::Albedo::SetNormIncmat ( const double incmat ) [private]

Set the normalization function parameter.

This parameter is limited to values that are >=0 and <90.

Parameters:

incmat

Normalization function parameter, default is 0.0

Definition at line 95 of file Albedo.cpp.

References _FILEINFO_, Isis::iException::Message(), and p_normIncmat.

Referenced by Albedo().

void Isis::Albedo::SetNormIncref ( const double incref ) [private]

Set the normalization function parameter.

This is the reference incidence angle to which the image photometry will be normalized. This parameter is limited to values that are >=0 and <90.

Parameters:

incref

Normalization function parameter, default is 0.0

Definition at line 80 of file Albedo.cpp.

References _FILEINFO_, Isis::iException::Message(), and p_normIncref.

Referenced by Albedo().

void Isis::Albedo::SetNormThresh ( const double thresh ) [private]

Set the normalization function parameter.

It is used to amplify variations in the input image in regions of small incidence angle where the shading in the input image is weak. This parameter sets the upper limit on the amount of amplification that will be attempted. If it is set too low, low incidence areas of the image may appear bland. If it is set too high, then low incidence areas of the image may contain amplified noise rather than useful shading information.

Parameters:

thresh

Normalization function parameter, default is 30.0

Definition at line 130 of file Albedo.cpp.

References p_normThresh.

Referenced by Albedo().

void Isis::NormModel::SetNormWavelength ( double wavelength ) [virtual, inherited]

Set the wavelength parameter.

This value is obtained from the BandBin Center keyword of the image. This must be set by the application.

Definition at line 45 of file NormModel.cpp.

References Isis::NormModel::p_normWavelength.

Referenced by Isis::Photometry::SetPhotomWl().