The class ImageLutModel model the histogram of a given vtkImageData. More...

#include <ImageLutModel.h>

Collaboration diagram for ImageLutModel:

Public Member Functions
int	getBinIndex (double)
	image value to the histogram bin index (get the bin index of a given value) More...

double	getBinIndexAsDouble (double value, bool checkBound=true)
	image value to the histogram value (required to show the current level/window values on the graph) More...

double	getBinValue (int)
	get the number of voxels that end up in a given bin index More...

double	getLevelFromPercent (int)
	get level value from a percentage More...

double	getMaxBinValue ()
	get the highgest grey level value More...

double	getMaxValue ()
	get the maximal voxel value (lutMax) More...

double	getMinValue ()
	get the minimal voxel value (lutMin) More...

int	getNumberOfBins ()
	get the current number of bins More...

int	getPercentFromLevel (double)
	get level value as a percentage between 0 and 100 More...

int	getPercentFromWindow (double)
	get window value as a percentage between 0 and 100 More...

double	getWindowFromPercent (int)
	get window value from a percentage More...

	ImageLutModel (vtkSmartPointer< vtkImageData >)
	Constructor: set the image data. More...

void	setNumberOfBins (int)
	change the number of bins More...

	~ImageLutModel ()
	destructor More...

Private Member Functions
void	updateHistogram ()
	update the histogram depending on the number of bins More...

Private Attributes
double *	greyLevels
	Table containing histogram bins. More...

double	highestGreyLevel
	highest number of grey level (highest value in greyLevels array) More...

vtkSmartPointer< vtkImageData >	image
	currently modeled image More...

double	maxValue
	Min the possible data value (given by the data type of the image) More...

double	minValue
	Min the possible data value (given by the data type of the image) More...

unsigned int	nbHistoBins
	size of greyLevels More...

Detailed Description

The class ImageLutModel model the histogram of a given vtkImageData.

Uses double data type to manage the histogram. This allows for managin properly all type of voxel datatype.

Note: The ui is defined in the corresponding ImageLutWidget.ui

Constructor & Destructor Documentation

◆ ImageLutModel()

ImageLutModel::ImageLutModel ( vtkSmartPointer< vtkImageData > image )

Constructor: set the image data.

References greyLevels, image, maxValue, minValue, nbHistoBins, and updateHistogram().

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◆ ~ImageLutModel()

ImageLutModel::~ImageLutModel ( )

destructor

References greyLevels.

Member Function Documentation

◆ getBinIndex()

int ImageLutModel::getBinIndex ( double value )

image value to the histogram bin index (get the bin index of a given value)

References getBinIndexAsDouble(), and nbHistoBins.

Referenced by updateHistogram().

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◆ getBinIndexAsDouble()

double ImageLutModel::getBinIndexAsDouble	(	double	value,
		bool	checkBound = `true`
	)

image value to the histogram value (required to show the current level/window values on the graph)

Parameters

checkBound	if true, then value below lutMin and over lutMax return 0 and getNumberOfBins() - 1 respectively
value	the pixel/voxel value to check the bin of

References maxValue, minValue, and nbHistoBins.

Referenced by ImageLutWidget::drawGraphics(), and getBinIndex().

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◆ getBinValue()

double ImageLutModel::getBinValue ( int index )

get the number of voxels that end up in a given bin index

References greyLevels, and nbHistoBins.

Referenced by ImageLutWidget::drawGraphics(), and ImageLutWidget::showHistogramTooltip().

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◆ getLevelFromPercent()

double ImageLutModel::getLevelFromPercent ( int levelPercent )

get level value from a percentage

References maxValue, and minValue.

Referenced by ImageLutWidget::levelSliderChanged().

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◆ getMaxBinValue()

double ImageLutModel::getMaxBinValue ( )

get the highgest grey level value

References highestGreyLevel.

Referenced by ImageLutWidget::drawGraphics().

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◆ getMaxValue()

double ImageLutModel::getMaxValue ( )

get the maximal voxel value (lutMax)

References maxValue.

Referenced by ImageLutWidget::initLevel(), ImageLutWidget::initWindow(), ImageLutWidget::resetLUT(), ImageLutWidget::showHistogramTooltip(), and ImageLutWidget::updateBinComboBox().

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◆ getMinValue()

double ImageLutModel::getMinValue ( )

get the minimal voxel value (lutMin)

References minValue.

Referenced by ImageLutWidget::initLevel(), ImageLutWidget::initWindow(), ImageLutWidget::resetLUT(), ImageLutWidget::showHistogramTooltip(), and ImageLutWidget::updateBinComboBox().

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◆ getNumberOfBins()

int ImageLutModel::getNumberOfBins ( )

get the current number of bins

References nbHistoBins.

Referenced by ImageLutWidget::binComboBoxChanged(), ImageLutWidget::drawGraphics(), ImageLutWidget::showHistogramTooltip(), and ImageLutWidget::updateBinComboBox().

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◆ getPercentFromLevel()

int ImageLutModel::getPercentFromLevel ( double level )

get level value as a percentage between 0 and 100

References maxValue, and minValue.

Referenced by ImageLutWidget::initLevel(), and ImageLutWidget::levelSpinBoxChanged().

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◆ getPercentFromWindow()

int ImageLutModel::getPercentFromWindow ( double window )

get window value as a percentage between 0 and 100

References maxValue, and minValue.

Referenced by ImageLutWidget::initWindow(), and ImageLutWidget::windowSpinBoxChanged().

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◆ getWindowFromPercent()

double ImageLutModel::getWindowFromPercent ( int windowPercent )

get window value from a percentage

References maxValue, and minValue.

Referenced by ImageLutWidget::windowSliderChanged().

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◆ setNumberOfBins()

void ImageLutModel::setNumberOfBins ( int binCount )

change the number of bins

References maxValue, minValue, nbHistoBins, and updateHistogram().

Referenced by ImageLutWidget::binComboBoxChanged().

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◆ updateHistogram()

void ImageLutModel::updateHistogram ( )

private

update the histogram depending on the number of bins

References getBinIndex(), greyLevels, highestGreyLevel, image, and nbHistoBins.

Referenced by ImageLutModel(), and setNumberOfBins().

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Member Data Documentation

◆ greyLevels

double* ImageLutModel::greyLevels

private

Table containing histogram bins.

Note: use double as it can have a high number of pixel of the same number

Referenced by getBinValue(), ImageLutModel(), updateHistogram(), and ~ImageLutModel().

◆ highestGreyLevel

double ImageLutModel::highestGreyLevel

private

highest number of grey level (highest value in greyLevels array)

Note: use double as it can have a high number of pixel of the same number

Referenced by getMaxBinValue(), and updateHistogram().

◆ image

vtkSmartPointer<vtkImageData> ImageLutModel::image

private

currently modeled image

Referenced by ImageLutModel(), and updateHistogram().

◆ maxValue

double ImageLutModel::maxValue

private

Min the possible data value (given by the data type of the image)

Referenced by getBinIndexAsDouble(), getLevelFromPercent(), getMaxValue(), getPercentFromLevel(), getPercentFromWindow(), getWindowFromPercent(), ImageLutModel(), and setNumberOfBins().

◆ minValue

double ImageLutModel::minValue

private

Min the possible data value (given by the data type of the image)

Referenced by getBinIndexAsDouble(), getLevelFromPercent(), getMinValue(), getPercentFromLevel(), getPercentFromWindow(), getWindowFromPercent(), ImageLutModel(), and setNumberOfBins().

◆ nbHistoBins

unsigned int ImageLutModel::nbHistoBins

private

size of greyLevels

Note: the maximum number of histogram bins is UINT_MAX

Referenced by getBinIndex(), getBinIndexAsDouble(), getBinValue(), getNumberOfBins(), ImageLutModel(), setNumberOfBins(), and updateHistogram().

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

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ImageLutModel()

◆ ~ImageLutModel()

Member Function Documentation

◆ getBinIndex()

◆ getBinIndexAsDouble()

◆ getBinValue()

◆ getLevelFromPercent()

◆ getMaxBinValue()

◆ getMaxValue()

◆ getMinValue()

◆ getNumberOfBins()

◆ getPercentFromLevel()

◆ getPercentFromWindow()

◆ getWindowFromPercent()

◆ setNumberOfBins()

◆ updateHistogram()

Member Data Documentation

◆ greyLevels

◆ highestGreyLevel

◆ image

◆ maxValue

◆ minValue

◆ nbHistoBins