gbl Namespace Reference

Functions
void	BitweightCorrect (Buffer &in)
	This method is modelled after IDL CISSCAL's cassimg_bitweightcorrect.pro.
void	Calibrate (vector< Buffer * > &in, vector< Buffer * > &out)
	This calibration method runs through all calibration steps.
void	ComputeBias ()
	This method is modelled after IDL CISSCAL's cassimg_debias.pro.
void	CopyInput (Buffer &in)
	The purpose of this method is to copy the input to output if no bitweight correction occurs.
void	CreateBitweightStretch (FileName bitweightTable)
	This method sets up the strech for the conversion from file.
FileName	FindBitweightFile ()
	This method is modelled after IDL CISSCAL's cassimg_bitweightcorrect.pro.
vector< double >	OverclockFit ()
	This method is modelled after IDL CISSCAL's cassimg_define.pro method, CassImg::OverclockAvg().
void	Linearize ()
	This method is modelled after IDL CISSCAL's cassimg_linearise.pro.
void	FindDustRingParameters ()
	This method is modelled after IDL CISSCAL's cassimg_dustringcorrect.pro.
FileName	FindFlatFile ()
	This method is modelled after IDL CISSCAL's cassimg_dividebyflats.pro.
void	FindCorrectionFactors ()
	This method is modelled after IDL CISSCAL's cassimg_correctionfactors.pro.
void	DNtoElectrons ()
	This method is modelled after IDL CISSCAL's cassimg_dntoelectrons.pro.
void	FindShutterOffset ()
	This method is modelled after IDL CISSCAL's cassimg_dividebyexpot.pro.
void	DivideByAreaPixel ()
	This method is modelled after IDL CISSCAL's cassimg_dividebyareapixel.pro.
void	FindEfficiencyFactor (QString fluxunits)
	This method is modelled after IDL CISSCAL's cassimg_dividebyefficiency.pro.
QString	GetCalibrationDirectory (QString calibrationType)
	This method returns an QString containing the path of a Cassini calibration directory.
void	Calibrate (Buffer &in, Buffer &out)
void	LoadCoefficients (const QString &file, int ns)
void	FixWagoLines (QString file)
const int	spikeInterval (50)
void	CollectColumnStats (Buffer &in)
void	Copy (Buffer &in, Buffer &out)
void	RemoveNoise (Buffer &in, Buffer &out)
Variables
CissLabels *	cissLab
Cube *	incube
PvlGroup	calgrp
Stretch	stretch
int	numberOfOverclocks
vector< double >	bias
vector< vector< double > >	bitweightCorrected
vector< vector< double > >	dark_DN
FileName	dustFile
FileName	mottleFile
double	strengthFactor
bool	dustCorrection
bool	mottleCorrection
bool	flatCorrection
double	trueGain
bool	divideByExposure
Brick *	offset
double	solidAngle
double	opticsArea
double	sumFactor
double	efficiencyFactor
double	polarizationFactor
double	correctionFactor
Mer::MiCalibration *	mi
double	sunAU
double	ReferencePixelValue
int	useReferenceValue
int	useZeroExposureValue
int	useActiveAreaValue
double	a
double	off
double	ex
double	z
double	dc
double	g
double	w0
double	iof
vector< double >	pixelGain
vector< double >	pixelOffset
vector< double >	inLineAvg
vector< double >	outLineAvg
MocLabels *	moc
bool	nullWago
int	averageWidth
vector< int >	maxNoiseColumn
vector< double >	column1Norm
vector< double >	column2Norm
vector< double >	column3Norm
int	delta
int	ssFirst
double	avg1
double	avg2
double	avg3

Function Documentation

void BitweightCorrect ( Buffer & in )

This method is modelled after IDL CISSCAL's cassimg_bitweightcorrect.pro.

The purpose is to correct the image for uneven bit weights. This is done using one of several tables developed from the ground calibration exercises table depends on InstrumentId, GainModeId, and OpticsTemperature.

Parameters:

in

Input buffer for the first process in IsisMain()

Definition at line 411 of file cisscal.cpp.

void Calibrate	(	vector< Buffer * > &	in,
		vector< Buffer * > &	out
	)

This calibration method runs through all calibration steps.

It takes a vector of input buffers that contains the input image and, if needed, the flat field image, the dustring correction image, and the mottle correction image. The vector of output buffers will only contain one element: the output image.

Parameters:

	in	Vector of pointers to input buffers for the second process in IsisMain()
	out	Vector of pointers to output buffer.

Definition at line 258 of file cisscal.cpp.

void ComputeBias ( )

This method is modelled after IDL CISSCAL's cassimg_debias.pro.

The purpose is to compute the bias (zero-exposure DN level of CCD chip) to be subtracted in the Calibrate() method. There are two ways to do this 1. (DEFAULT) using overclocked pixel array taken out of binary line prefix 2. subtract BiasMeanStrip value found in labels

Definition at line 520 of file cisscal.cpp.

void CopyInput ( Buffer & in )

The purpose of this method is to copy the input to output if no bitweight correction occurs.

Parameters:

in

Input buffer for the first process in IsisMain()

Definition at line 387 of file cisscal.cpp.

void CreateBitweightStretch ( FileName bitweightTable )

This method sets up the strech for the conversion from file.

It is used by the BitweightCorrect() method to map LUT values.

Parameters:

bitweightTable

Name of the bitweight table for this image.

Definition at line 440 of file cisscal.cpp.

FileName FindBitweightFile ( )

This method is modelled after IDL CISSCAL's cassimg_bitweightcorrect.pro.

The purpose is to find the look up table file name for this image.

The table to be used depends on: Camera NAC or WAC GainState 1, 2 or 3 <=> GainModeId 95, 29, or 12 Optics temp. -10, +5 or +25

Returns:: FileName Name of the bitweight file

Definition at line 476 of file cisscal.cpp.

vector< double > OverclockFit ( )

This method is modelled after IDL CISSCAL's cassimg_define.pro method, CassImg::OverclockAvg().

This access function computes line-averaged overclocked pixel values and returns a linear fit of these values.

Returns:: vector <double> Results of linear fit

Definition at line 593 of file cisscal.cpp.

void Linearize ( )

This method is modelled after IDL CISSCAL's cassimg_linearise.pro.

The purpose is to correct the image for non-linearity.

Definition at line 666 of file cisscal.cpp.

void FindDustRingParameters ( )

This method is modelled after IDL CISSCAL's cassimg_dustringcorrect.pro.

The purpose is to find the files and value needed to perform dustring correction and mottle correction: dustFile, mottleFile, strengthFactor.

Definition at line 776 of file cisscal.cpp.

FileName FindFlatFile ( )

This method is modelled after IDL CISSCAL's cassimg_dividebyflats.pro.

The purpose is to find the flat field file needed to correct the image for sensitivity variations across the field by dividing by flat field image.

Returns:: FileName Name of the flat file for this image.

Definition at line 977 of file cisscal.cpp.

void FindCorrectionFactors ( )

This method is modelled after IDL CISSCAL's cassimg_correctionfactors.pro.

The purpose is to find the correction factor, i.e. the value used to correct the image for ad-hoc factors.

Definition at line 1545 of file cisscal.cpp.

void DNtoElectrons ( )

This method is modelled after IDL CISSCAL's cassimg_dntoelectrons.pro.

The purpose is to find the true gain needed to multiply image by gain constant (convert DN to electrons).

Definition at line 1090 of file cisscal.cpp.

void FindShutterOffset ( )

This method is modelled after IDL CISSCAL's cassimg_dividebyexpot.pro.

The purpose is to find the shutter offset needed to divide a Cassini image by corrected exposure time, correcting for shutter offset effects (sample dependency of actual exposure time).

Definition at line 1157 of file cisscal.cpp.

void DivideByAreaPixel ( )

This method is modelled after IDL CISSCAL's cassimg_dividebyareapixel.pro.

The purpose is to find the values needed to normalise the image by dividing by area of optics and by solid angle subtended by a pixel.

Definition at line 1210 of file cisscal.cpp.

void FindEfficiencyFactor ( QString fluxunits )

This method is modelled after IDL CISSCAL's cassimg_dividebyefficiency.pro.

The purpose is to find the efficiency factor for the given flux units. This value is used to correct the image for filter and CCD efficiency.

Note: For "I/F", The results diverge from the IDL results due to differences in the way they calculate solar distance. However, the DN results are still within 0.2% after we divide by efficiency factor.

Definition at line 1272 of file cisscal.cpp.

QString GetCalibrationDirectory ( QString calibrationType )

This method returns an QString containing the path of a Cassini calibration directory.

Parameters:

calibrationType