Class representing a configurable (HSV) colormap. More...

#include <cmtkColormap.h>

Inheritance diagram for cmtk::Colormap:

Collaboration diagram for cmtk::Colormap:

Public Member Functions
	igsClassParameter (bool, HaveUserMap)
	Flag for user-defined colormaps.
	igsClassParameter2Array (Types::DataItem, HueRange)
	Two-value array defining the Hue range of the colormap.
	igsClassParameter2Array (cmtk::Types::DataItem, SaturationRange)
	Two-value array defining the Saturation range of the colormap.
	igsClassParameter2Array (cmtk::Types::DataItem, ValueRange)
	Two-value array defining the Value range of the colormap.
	igsClassParameter (cmtk::Types::DataItem, Gamma)
	igsClassParameter (int, TableEntries)
	The number of entries in the colormap, ie. the number of discrete colors.
	igsClassParameter2Array (cmtk::Types::DataItem, DataRange)
	Two-value array defining the range of data values to map.
	igsClassParameter (bool, Reverse)
	Reverse order of table entries.
void	SetStandardColormap (const int index)
	Chose one out of five predefined colormaps.
void	Apply (void const outPtr, const TypedArray inPtr, const bool generateAlpha=false)
	Apply this colormap to an image to get an RGB presentation.
void	SetFromStudy (const Study *study)
	Set colormap parameters from Study object.
Static Public Member Functions
static Colormap *	New ()
	Create new Colormap object.
static void	HSV2RGB (RGB &rgb, Types::DataItem H, Types::DataItem S, Types::DataItem V)
	Convert HSV color to RGB.
Static Public Attributes
static const char *	StandardColormaps []
	NULL-terminated list of standard colormap names.
Protected Member Functions
	Colormap ()
	Default constructor.
virtual	~Colormap ()
	Virtual destructor.
virtual void	Execute ()
	Execute function.
Private Member Functions
template<class T >
void	ApplyPrimitive (RGB const outPtr, const T inPtr, const unsigned int count, const bool paddingFlag, const T paddingData) const
	Apply table lookup for a particular primitive data type.
template<class T >
void	ApplyPrimitive (RGBA const outPtr, const T inPtr, const unsigned int count, const bool paddingFlag, const T paddingData) const
	Apply table lookup with constant alpha for one primitive data type.
Private Attributes
std::vector< RGB >	LookupTable
	Color lookup table.
Types::DataItem	InvDataRangeWidth
	Precomputed scaling factor for data value to table index conversion.
SegmentationLabelMap	LabelColorMap
	Label color map: is system-defined by default or can be read from file.

Detailed Description

Class representing a configurable (HSV) colormap.

Ranges for H, S, and V can be defined. For all data values in a given range, colors are interpolated linearly from these ranges. The number of discrete colors can be chosen by the user (default is 256). For any given set of parameters the lookup table is precomputed, so the actual lookup of several subsequent images can be done very efficiently.

Definition at line 61 of file cmtkColormap.h.

Constructor & Destructor Documentation

virtual cmtk::Colormap::~Colormap ( ) [inline, protected, virtual]

Virtual destructor.

Definition at line 134 of file cmtkColormap.h.

Member Function Documentation

cmtk::Colormap::igsClassParameter	(	bool	,
		HaveUserMap
	)

Flag for user-defined colormaps.

cmtk::Colormap::igsClassParameter	(	bool	,
		Reverse
	)

Reverse order of table entries.

cmtk::Colormap::igsClassParameter	(	cmtk::Types::DataItem	,
		Gamma
	)

cmtk::Colormap::igsClassParameter	(	int	,
		TableEntries
	)

The number of entries in the colormap, ie. the number of discrete colors.

cmtk::Colormap::igsClassParameter2Array	(	cmtk::Types::DataItem	,
		SaturationRange
	)

Two-value array defining the Saturation range of the colormap.

cmtk::Colormap::igsClassParameter2Array	(	cmtk::Types::DataItem	,
		DataRange
	)

Two-value array defining the range of data values to map.

All values below the lower bound will be mapped to the first color in the table while all values above the upper bound are mapped to the final color in the table.