Store and/or manipulate pixel values. More...

#include <Pixel.h>

Inheritance diagram for Isis::Pixel:

Collaboration diagram for Isis::Pixel:

Public Member Functions
	Pixel ()
	Constructs an empty Pixel. More...

	Pixel (int sample, int line, int band, double DN)
	Constructs a Pixel given a line, sample, band, and DN. More...

	Pixel (const Pixel &pixel)
	Constructs a Pixel, given a Pixel. More...

virtual	~Pixel ()
	Default destructor. More...

Pixel &	operator= (const Pixel &other)
	Copy assignment operator. More...

int	line () const

int	sample () const

int	band () const

double	DN () const

unsigned char	To8Bit ()
	Converts internal pixel value to an unsigned char pixel with special pixel translations. More...

short int	To16Bit ()
	Converts internal pixel value to a short int pixel with special pixel translations. More...

short unsigned int	To16Ubit ()
	Converts internal pixel value to a short int pixel with special pixel translations. More...

float	To32Bit ()
	Converts internal pixel value to float with special pixel translations. More...

double	ToDouble ()
	Converts stored pixel value to a double. More...

float	ToFloat ()
	Converts internal pixel value to float with pixel translations and care for overflows (underflows are assumed to cast to 0!) More...

std::string	ToString ()
	Returns the name of the pixel type as a string. More...

bool	IsSpecial ()
	Returns true if the input pixel is special. More...

bool	IsValid ()
	Returns true if the input pixel is valid. More...

bool	IsNull ()
	Returns true if the input pixel is null. More...

bool	IsHigh ()
	Returns true if the input pixel is one of the high saturation types. More...

bool	IsLow ()
	Returns true if the input pixel is one of the low saturation types. More...

bool	IsHrs ()
	Returns true if the input pixel is high representation saturation. More...

bool	IsHis ()
	Returns true if the input pixel is high instrument saturation. More...

bool	IsLis ()
	Returns true if the input pixel is low instrument saturation. More...

bool	IsLrs ()
	Returns true if the input pixel is low representation saturation. More...

Static Public Member Functions
static unsigned char	To8Bit (const double d)
	Converts double pixels to unsigned char pixels with special pixel translations. More...

static short int	To16Bit (const double d)
	Converts double pixels to short int pixels with special pixel translations. More...

static short unsigned int	To16UBit (const double d)
	Converts double pixels to short unsigned int pixels with special pixel translations. More...

static float	To32Bit (const double d)
	Converts double pixels to float pixels with special pixel translations. More...

static double	ToDouble (const unsigned char t)
	Converts unsigned char pixels to double pixels with special pixel translations. More...

static double	ToDouble (const short int t)
	Converts short int pixels to double pixels with special pixel translations. More...

static double	ToDouble (const short unsigned int t)
	Converts short unsigned int pixels to double pixels with special pixel translations. More...

static double	ToDouble (const float t)
	Converts float pixels to double pixels with special pixel translations. More...

static float	ToFloat (const unsigned char d)
	Converts unsigned char to float with pixel translations and care for overflows (underflows are assumed to cast to 0!) More...

static float	ToFloat (const short int d)
	Converts short int to float with pixel translations and care for overflows (underflows are assumed to cast to 0!) More...

static float	ToFloat (const short unsigned int d)
	Converts short unsigned int to float with pixel translations and care for overflows (underflows are assumed to cast to 0!) More...

static float	ToFloat (const double d)
	Converts double to float with pixel translations and care for overflows (underflows are assumed to cast to 0!) More...

static std::string	ToString (double d)
	Takes a double pixel value and returns the name of the pixel type as a string. More...

static bool	IsSpecial (const double d)
	Returns true if the input pixel is special. More...

static bool	IsSpecial (const float f)
	Returns true if the input pixel is special. More...

static bool	IsValid (const double d)
	Returns true if the input pixel is valid. More...

static bool	IsNull (const double d)
	Returns true if the input pixel is null. More...

static bool	IsHigh (const double d)
	Returns true if the input pixel is one of the high saturation types. More...

static bool	IsLow (const double d)
	Returns true if the input pixel is one of the low saturation types. More...

static bool	IsHrs (const double d)
	Returns true if the input pixel is high representation saturation. More...

static bool	IsHis (const double d)
	Returns true if the input pixel is high instrument saturation. More...

static bool	IsLis (const double d)
	Returns true if the input pixel is low instrument saturation. More...

static bool	IsLrs (const double d)
	Returns true if the input pixel is low representation saturation. More...

Detailed Description

Store and/or manipulate pixel values.

This class can store pixel information and also contains utility methods for testing and modifying pixel and special pixel values that can be used without instanteating the class.

Author: 2002-04-11 Kris Becker

Constructor & Destructor Documentation

◆ Pixel() [1/3]

Isis::Pixel::Pixel ( )

Constructs an empty Pixel.

Author: 2015-08-05 Kristin Berry

References Isis::Null.

◆ Pixel() [2/3]

Isis::Pixel::Pixel	(	int	sample,
		int	line,
		int	band,
		double	DN
	)

Constructs a Pixel given a line, sample, band, and DN.

Author: 2015-05-08 Kristin Berry

Parameters

line	line coordinate
sample	sample coordinate
band	band coordinate
DN	data value for the pixel

◆ Pixel() [3/3]

Isis::Pixel::Pixel ( const Pixel & pixel )

Constructs a Pixel, given a Pixel.

Author: 2015-08-05 Kristin Berry

Parameters

pixel Pixel to copy

References band(), DN(), line(), and sample().

◆ ~Pixel()

Isis::Pixel::~Pixel ( )

virtual

Default destructor.

Member Function Documentation

◆ band()

int Isis::Pixel::band ( ) const

Returns: int The band coordinate of the Pixel

Referenced by operator=(), and Pixel().

◆ DN()

double Isis::Pixel::DN ( ) const

Returns: double The DN value of the Pixel

Referenced by operator=(), and Pixel().

◆ IsHigh() [1/2]

static bool Isis::Pixel::IsHigh ( const double d )

inlinestatic

Returns true if the input pixel is one of the high saturation types.

Parameters

d	Pixel value to test

Returns: bool

References Isis::HIGH_INSTR_SAT8, and Isis::HIGH_REPR_SAT8.

◆ IsHigh() [2/2]

bool Isis::Pixel::IsHigh ( )

inline

Returns true if the input pixel is one of the high saturation types.

Returns: bool

◆ IsHis() [1/2]

static bool Isis::Pixel::IsHis ( const double d )

inlinestatic

Returns true if the input pixel is high instrument saturation.

Parameters

d	Pixel value to test

Returns: bool

References Isis::HIGH_INSTR_SAT8.

◆ IsHis() [2/2]

bool Isis::Pixel::IsHis ( )

inline

Returns true if the input pixel is high instrument saturation.

Returns: bool

◆ IsHrs() [1/2]

static bool Isis::Pixel::IsHrs ( const double d )

inlinestatic

Returns true if the input pixel is high representation saturation.

Parameters

d	Pixel value to test

Returns: bool

References Isis::HIGH_REPR_SAT8.

◆ IsHrs() [2/2]

bool Isis::Pixel::IsHrs ( )

inline

Returns true if the input pixel is high representation saturation.

Returns: bool

◆ IsLis() [1/2]

static bool Isis::Pixel::IsLis ( const double d )

inlinestatic

Returns true if the input pixel is low instrument saturation.

Parameters

d	Pixel value to test

Returns: bool

References Isis::LOW_INSTR_SAT8.

◆ IsLis() [2/2]

bool Isis::Pixel::IsLis ( )

inline

Returns true if the input pixel is low instrument saturation.

Returns: bool

◆ IsLow() [1/2]

static bool Isis::Pixel::IsLow ( const double d )

inlinestatic

Returns true if the input pixel is one of the low saturation types.

Parameters

d	Pixel value to test

Returns: bool

References Isis::LOW_INSTR_SAT8, and Isis::LOW_REPR_SAT8.

◆ IsLow() [2/2]

bool Isis::Pixel::IsLow ( )

inline

Returns true if the input pixel is one of the low saturation types.

Returns: bool

◆ IsLrs() [1/2]

static bool Isis::Pixel::IsLrs ( const double d )

inlinestatic

Returns true if the input pixel is low representation saturation.

Parameters

d	Pixel value to test

Returns: bool

References Isis::LOW_REPR_SAT8.

◆ IsLrs() [2/2]

bool Isis::Pixel::IsLrs ( )

inline

Returns true if the input pixel is low representation saturation.

Returns: bool

◆ IsNull() [1/2]

static bool Isis::Pixel::IsNull ( const double d )

inlinestatic

Returns true if the input pixel is null.

Parameters

d	Pixel value to test

Returns: bool

References Isis::NULL8.

◆ IsNull() [2/2]

bool Isis::Pixel::IsNull ( )

inline

Returns true if the input pixel is null.

Returns: bool

◆ IsSpecial() [1/3]

static bool Isis::Pixel::IsSpecial ( const double d )

inlinestatic

Returns true if the input pixel is special.

Not special implies it is valid to use in computations.

Parameters

d	Pixel value to test

Returns: bool

References Isis::VALID_MIN8.

◆ IsSpecial() [2/3]

bool Isis::Pixel::IsSpecial ( )

inline

Returns true if the input pixel is special.

Not special implies it is valid to use in computations.

Returns: bool

◆ IsSpecial() [3/3]

static bool Isis::Pixel::IsSpecial ( const float f )

inlinestatic

Returns true if the input pixel is special.

Not special implies it is valid to use in computations. This method applies to a 4-byte floating point rather than an 8-byte double.

Parameters

f	Pixel value to test

Returns: bool

References Isis::VALID_MIN4.

◆ IsValid() [1/2]

static bool Isis::Pixel::IsValid ( const double d )

inlinestatic

Returns true if the input pixel is valid.

Valid implies the pixel is neither hrs, lrs, his, lis, nor null.

Parameters

d	Pixel value to test

Returns: bool

References Isis::VALID_MIN8.

◆ IsValid() [2/2]

bool Isis::Pixel::IsValid ( )

inline

Returns true if the input pixel is valid.

Valid implies the pixel is neither hrs, lrs, his, lis, nor null.

Returns: bool

◆ line()

int Isis::Pixel::line ( ) const

Returns: int The line coordinate of the Pixel

Referenced by operator=(), and Pixel().

◆ operator=()

Pixel & Isis::Pixel::operator= ( const Pixel & other )

Copy assignment operator.

Parameters

other Pixel the Pixel to be copied

Returns: Pixel Pointer to self

References band(), DN(), line(), and sample().

Referenced by Isis::Spectel::operator=().

◆ sample()

int Isis::Pixel::sample ( ) const

Returns: int The sample coordinate of the Pixel

Referenced by Isis::SpectralDefinition2D::findSpectel(), operator=(), and Pixel().

◆ To16Bit() [1/2]

short int Isis::Pixel::To16Bit ( const double d )

static

Converts double pixels to short int pixels with special pixel translations.

Parameters

d	Double pixel value to be converted to a double

Returns: short int The short int pixel value

References Isis::HIGH_INSTR_SAT2, Isis::HIGH_INSTR_SAT8, Isis::HIGH_REPR_SAT2, Isis::HIGH_REPR_SAT8, Isis::LOW_INSTR_SAT2, Isis::LOW_INSTR_SAT8, Isis::LOW_REPR_SAT2, Isis::LOW_REPR_SAT8, Isis::NULL2, Isis::NULL8, Isis::VALID_MAX2, Isis::VALID_MIN2, and Isis::VALID_MIN8.

◆ To16Bit() [2/2]

short int Isis::Pixel::To16Bit ( )

Converts internal pixel value to a short int pixel with special pixel translations.

Returns: short int The short int pixel value

◆ To16UBit()

short unsigned int Isis::Pixel::To16UBit ( const double d )

static

Converts double pixels to short unsigned int pixels with special pixel translations.

Parameters

d	Double pixel value to be converted to a double

Returns: short unsigned int The short int pixel value

References Isis::HIGH_INSTR_SAT8, Isis::HIGH_INSTR_SATU2, Isis::HIGH_REPR_SAT8, Isis::HIGH_REPR_SATU2, Isis::LOW_INSTR_SAT8, Isis::LOW_INSTR_SATU2, Isis::LOW_REPR_SAT8, Isis::LOW_REPR_SATU2, Isis::NULL8, Isis::NULLU2, Isis::VALID_MAX2, Isis::VALID_MIN2, and Isis::VALID_MIN8.

◆ To16Ubit()

short unsigned int Isis::Pixel::To16Ubit ( )

Converts internal pixel value to a short int pixel with special pixel translations.

Returns: short unsigned int The short int pixel value

◆ To32Bit() [1/2]

float Isis::Pixel::To32Bit ( const double d )

static

Converts double pixels to float pixels with special pixel translations.

Parameters

d	Double pixel value to be converted to a double

Returns: float The float pixel value

References Isis::HIGH_INSTR_SAT4, Isis::HIGH_INSTR_SAT8, Isis::HIGH_REPR_SAT4, Isis::HIGH_REPR_SAT8, Isis::LOW_INSTR_SAT4, Isis::LOW_INSTR_SAT8, Isis::LOW_REPR_SAT4, Isis::LOW_REPR_SAT8, Isis::NULL4, Isis::NULL8, Isis::VALID_MAX8, and Isis::VALID_MIN8.

◆ To32Bit() [2/2]

float Isis::Pixel::To32Bit ( )

Converts internal pixel value to float with special pixel translations.

Returns: float The float pixel value

◆ To8Bit() [1/2]

unsigned char Isis::Pixel::To8Bit ( const double d )

static

Converts double pixels to unsigned char pixels with special pixel translations.

Parameters

d	Double pixel value to be converted to a double

Returns: unsigned char The unsigned char pixel value

References Isis::HIGH_INSTR_SAT1, Isis::HIGH_INSTR_SAT8, Isis::HIGH_REPR_SAT1, Isis::HIGH_REPR_SAT8, Isis::LOW_INSTR_SAT1, Isis::LOW_INSTR_SAT8, Isis::LOW_REPR_SAT1, Isis::LOW_REPR_SAT8, Isis::NULL1, Isis::NULL8, Isis::VALID_MAX1, Isis::VALID_MIN1, and Isis::VALID_MIN8.

◆ To8Bit() [2/2]

unsigned char Isis::Pixel::To8Bit ( )

Converts internal pixel value to an unsigned char pixel with special pixel translations.

Returns: unsigned char The unsigned char pixel value

◆ ToDouble() [1/5]

double Isis::Pixel::ToDouble ( const unsigned char d )

static

Converts unsigned char pixels to double pixels with special pixel translations.

Parameters

d	Unsigned char pixel value to be converted to a double

Returns: double The double pixel value

References Isis::HIGH_INSTR_SAT1, Isis::HIGH_INSTR_SAT8, Isis::HIGH_REPR_SAT1, Isis::HIGH_REPR_SAT8, Isis::LOW_INSTR_SAT1, Isis::LOW_INSTR_SAT8, Isis::LOW_REPR_SAT1, Isis::LOW_REPR_SAT8, Isis::NULL1, Isis::NULL8, Isis::VALID_MAX1, and Isis::VALID_MIN1.

◆ ToDouble() [2/5]

double Isis::Pixel::ToDouble ( const short int d )

static

Converts short int pixels to double pixels with special pixel translations.

Parameters

d	Short int pixel value to be converted to a double

Returns: double The double pixel value

References Isis::HIGH_INSTR_SAT2, Isis::HIGH_INSTR_SAT8, Isis::HIGH_REPR_SAT2, Isis::HIGH_REPR_SAT8, Isis::LOW_INSTR_SAT2, Isis::LOW_INSTR_SAT8, Isis::LOW_REPR_SAT2, Isis::LOW_REPR_SAT8, Isis::NULL2, Isis::NULL8, and Isis::VALID_MIN2.

◆ ToDouble() [3/5]

double Isis::Pixel::ToDouble ( const short unsigned int d )

static

Converts short unsigned int pixels to double pixels with special pixel translations.

Parameters

d	Short unsigned int pixel value to be converted to a double

Returns: double The double pixel value

References Isis::HIGH_INSTR_SAT8, Isis::HIGH_INSTR_SATU2, Isis::HIGH_REPR_SAT8, Isis::HIGH_REPR_SATU2, Isis::LOW_INSTR_SAT8, Isis::LOW_INSTR_SATU2, Isis::LOW_REPR_SAT8, Isis::LOW_REPR_SATU2, Isis::NULL8, Isis::NULLU2, and Isis::VALID_MINU2.

◆ ToDouble() [4/5]

double Isis::Pixel::ToDouble ( const float d )

static

Converts float pixels to double pixels with special pixel translations.

Parameters

d	Float pixel value to be converted to a double

Returns: double The double pixel value

References Isis::HIGH_INSTR_SAT4, Isis::HIGH_INSTR_SAT8, Isis::HIGH_REPR_SAT4, Isis::HIGH_REPR_SAT8, Isis::LOW_INSTR_SAT4, Isis::LOW_INSTR_SAT8, Isis::LOW_REPR_SAT4, Isis::LOW_REPR_SAT8, Isis::NULL4, Isis::NULL8, Isis::VALID_MAX4, and Isis::VALID_MIN4.

◆ ToDouble() [5/5]

double Isis::Pixel::ToDouble ( )

Converts stored pixel value to a double.

Returns: double The double pixel value

◆ ToFloat() [1/5]

float Isis::Pixel::ToFloat ( const unsigned char t )

static

Converts unsigned char to float with pixel translations and care for overflows (underflows are assumed to cast to 0!)

Parameters

t	Unsigned char pixel value to be converted to a float

Returns: float The float pixel value

References Isis::HIGH_INSTR_SAT1, Isis::HIGH_INSTR_SAT4, Isis::HIGH_REPR_SAT1, Isis::HIGH_REPR_SAT4, Isis::HIGH_REPR_SAT8, Isis::LOW_INSTR_SAT1, Isis::LOW_INSTR_SAT4, Isis::LOW_REPR_SAT1, Isis::LOW_REPR_SAT4, Isis::NULL1, Isis::NULL4, Isis::VALID_MAX1, and Isis::VALID_MIN1.

◆ ToFloat() [2/5]

float Isis::Pixel::ToFloat ( const short int t )

static

Converts short int to float with pixel translations and care for overflows (underflows are assumed to cast to 0!)

Parameters

t	Short int pixel value to be converted to a float

Returns: float The float pixel value

References Isis::HIGH_INSTR_SAT2, Isis::HIGH_INSTR_SAT4, Isis::HIGH_REPR_SAT2, Isis::HIGH_REPR_SAT4, Isis::HIGH_REPR_SAT8, Isis::LOW_INSTR_SAT2, Isis::LOW_INSTR_SAT4, Isis::LOW_REPR_SAT2, Isis::LOW_REPR_SAT4, Isis::NULL2, Isis::NULL4, Isis::VALID_MAX2, and Isis::VALID_MIN2.

◆ ToFloat() [3/5]

float Isis::Pixel::ToFloat ( const short unsigned int t )

static

Converts short unsigned int to float with pixel translations and care for overflows (underflows are assumed to cast to 0!)

Parameters

t	Short unsigned int pixel value to be converted to a float

Returns: float The float pixel value

References Isis::HIGH_INSTR_SAT4, Isis::HIGH_INSTR_SATU2, Isis::HIGH_REPR_SAT4, Isis::HIGH_REPR_SAT8, Isis::HIGH_REPR_SATU2, Isis::LOW_INSTR_SAT4, Isis::LOW_INSTR_SATU2, Isis::LOW_REPR_SAT4, Isis::LOW_REPR_SATU2, Isis::NULL4, Isis::NULLU2, Isis::VALID_MAXU2, and Isis::VALID_MINU2.

◆ ToFloat() [4/5]

float Isis::Pixel::ToFloat ( const double t )

static

Converts double to float with pixel translations and care for overflows (underflows are assumed to cast to 0!)

Parameters

t	Double pixel value to be converted to a float

Returns: float The float pixel value

References Isis::HIGH_INSTR_SAT4, Isis::HIGH_INSTR_SAT8, Isis::HIGH_REPR_SAT4, Isis::HIGH_REPR_SAT8, Isis::LOW_INSTR_SAT4, Isis::LOW_INSTR_SAT8, Isis::LOW_REPR_SAT4, Isis::LOW_REPR_SAT8, Isis::NULL4, Isis::NULL8, Isis::VALID_MAX8, and Isis::VALID_MIN8.

◆ ToFloat() [5/5]

float Isis::Pixel::ToFloat ( )

Converts internal pixel value to float with pixel translations and care for overflows (underflows are assumed to cast to 0!)

Returns: float The float pixel value

◆ ToString() [1/2]

string Isis::Pixel::ToString ( double d )

static

Takes a double pixel value and returns the name of the pixel type as a string.

Parameters

d	Pixel value

Returns: string The name of the pixel type

References Isis::IsSpecial().

◆ ToString() [2/2]

string Isis::Pixel::ToString ( )

Returns the name of the pixel type as a string.

Returns: string The name of the pixel type

References Isis::ToString().

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

/usgs/pkgs/isis3.9.0_docs/ISIS3/isis/src/base/objs/Pixel/Pixel.h
/usgs/pkgs/isis3.9.0_docs/ISIS3/isis/src/base/objs/Pixel/Pixel.cpp

Public Member Functions

Static Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ Pixel() [1/3]

◆ Pixel() [2/3]

◆ Pixel() [3/3]

◆ ~Pixel()

Member Function Documentation

◆ band()

◆ DN()

◆ IsHigh() [1/2]

◆ IsHigh() [2/2]

◆ IsHis() [1/2]

◆ IsHis() [2/2]

◆ IsHrs() [1/2]

◆ IsHrs() [2/2]

◆ IsLis() [1/2]

◆ IsLis() [2/2]

◆ IsLow() [1/2]

◆ IsLow() [2/2]

◆ IsLrs() [1/2]

◆ IsLrs() [2/2]

◆ IsNull() [1/2]

◆ IsNull() [2/2]

◆ IsSpecial() [1/3]

◆ IsSpecial() [2/3]

◆ IsSpecial() [3/3]

◆ IsValid() [1/2]

◆ IsValid() [2/2]

◆ line()

◆ operator=()

◆ sample()

◆ To16Bit() [1/2]

◆ To16Bit() [2/2]

◆ To16UBit()

◆ To16Ubit()

◆ To32Bit() [1/2]

◆ To32Bit() [2/2]

◆ To8Bit() [1/2]

◆ To8Bit() [2/2]

◆ ToDouble() [1/5]

◆ ToDouble() [2/5]

◆ ToDouble() [3/5]

◆ ToDouble() [4/5]

◆ ToDouble() [5/5]

◆ ToFloat() [1/5]

◆ ToFloat() [2/5]

◆ ToFloat() [3/5]

◆ ToFloat() [4/5]

◆ ToFloat() [5/5]

◆ ToString() [1/2]

◆ ToString() [2/2]