#include <ImageBuilder.h>

Public Member Functions
void	calcHistogram (unsigned int *hist, unsigned int histsize, int tMin, int tMax)
void	convertTemperatureToPaletteImage (unsigned char *dst, bool ignoreStride=false)
void	convertTemperatureToPaletteImage (unsigned int lut[65536], unsigned char *dst)
void	drawCrosshair (unsigned char *img, unsigned int x, unsigned int y, unsigned channels=3)
void	fillPaletteLookup (unsigned int lut[65536])
unsigned int	getHeight ()
float	getIsothermalMax ()
float	getIsothermalMin ()
float	getMeanTemperature (int u1, int v1, int u2, int v2)
void	getMinMaxRegion (int radius, ExtremalRegion minRegion, ExtremalRegion maxRegion)
EnumOptrisColoringPalette	getPalette ()
EnumOptrisPaletteScalingMethod	getPaletteScalingMethod ()
void	getPaletteTable (paletteTable &table)
unsigned int	getStride (void)
float	getTemperatureAt (int index)
float	getTemperatureAt (int u, int v)
unsigned int	getWidth ()
	ImageBuilder (bool alignStride=true)
void	setData (unsigned int width, unsigned int height, unsigned short *data)
void	setManualTemperatureRange (float min, float max)
void	setPalette (EnumOptrisColoringPalette palette)
void	setPaletteScalingMethod (EnumOptrisPaletteScalingMethod method)
void	yuv422torgb24 (const unsigned char src, unsigned char dst, unsigned int w, unsigned int h)
	~ImageBuilder ()
Private Member Functions
void	calcMinMaxScalingFactor ()
void	calcSigmaScalingFactor (float sigma)
void	calculateIntegralImage ()
Private Attributes
bool	_alignStride
unsigned short *	_data
unsigned int	_height
unsigned long *	_integral
bool	_integralIsDirty
unsigned short	_max
unsigned short	_min
EnumOptrisColoringPalette	_palette
EnumOptrisPaletteScalingMethod	_scalingMethod
unsigned int	_size
unsigned int	_stride
unsigned int	_width

Detailed Description

Image creation module for displaying purposes

Author:: Stefan May (Nuremberg Institute of Technology Georg Simon Ohm), Matthias Wiedemann (Optris GmbH)

Definition at line 53 of file ImageBuilder.h.

Constructor & Destructor Documentation

optris::ImageBuilder::ImageBuilder ( bool alignStride = true )

Standard constructor

optris::ImageBuilder::~ImageBuilder ( )

Standard destructor

Member Function Documentation

void optris::ImageBuilder::calcHistogram	(	unsigned int *	hist,
		unsigned int	histsize,
		int	tMin,
		int	tMax
	)

calculate histogram

Parameters:

[out]	hist	histogram
[in]	histsize	number of quantization steps
[in]	tMin	minimum temperature
[in]	tMax	maximum temperature

void optris::ImageBuilder::calcMinMaxScalingFactor ( ) [private]

Calculate scaling boundaries based on minimal and maximal temperature

void optris::ImageBuilder::calcSigmaScalingFactor ( float sigma ) [private]

Calculate scaling boundaries based on standard deviation

Parameters:

[in] sigma Multiplication factor for sigma range

void optris::ImageBuilder::calculateIntegralImage ( ) [private]

void optris::ImageBuilder::convertTemperatureToPaletteImage	(	unsigned char *	dst,
		bool	ignoreStride = `false`
	)

Image conversion to rgb

Parameters:

[out]	dst	Destination image
[in]	by	default columns are multiple of 4, i.e., stride is added

void optris::ImageBuilder::convertTemperatureToPaletteImage	(	unsigned int	lut[65536],
		unsigned char *	dst
	)

Image conversion to rgb with lookup table. This method is efficient, but works only with fixed temperature ranges (manual mode).

Parameters:

[in]	lut	lookup table
[out]	dst	Destination image

void optris::ImageBuilder::drawCrosshair	(	unsigned char *	img,
		unsigned int	x,
		unsigned int	y,
		unsigned	channels = `3`
	)

Draw crosshair to the center of image

Parameters:

	in/out]	img image in RGB or RGBA format
[in]	x	x-position in image
[out]	y	y-position in image

void optris::ImageBuilder::fillPaletteLookup ( unsigned int lut[65536] )

Fill lookup table for false color conversion.

Parameters:

[out] lut lookup table

unsigned int optris::ImageBuilder::getHeight ( )

Get image height

Returns:: image height

float optris::ImageBuilder::getIsothermalMax ( )

Get maximum temperature used to scale image

Returns:: Temperature in °C

float optris::ImageBuilder::getIsothermalMin ( )

Get minimum temperature used to scale image

Returns:: Temperature in °C

float optris::ImageBuilder::getMeanTemperature	(	int	u1,
		int	v1,
		int	u2,
		int	v2
	)

Get mean temperature of rectangular measuring field

Parameters:

[in]	u1	u-component of image coordinate, i. e. column of 1st point
[in]	v1	v-component of image coordinate, i. e. row of 1st point
[in]	u2	u-component of image coordinate, i. e. column of 2nd point
[in]	v2	v-component of image coordinate, i. e. row of 2nd point

Returns:: mean temperature

void optris::ImageBuilder::getMinMaxRegion	(	int	radius,
		ExtremalRegion *	minRegion,
		ExtremalRegion *	maxRegion
	)

Get region of minimum/maximum temperature with given radius

Parameters:

[in]	radius	Radius of region
[out]	minRegion	Region of minimum mean temperature
[out]	maxRegion	Region of maximum mean temperature

EnumOptrisColoringPalette optris::ImageBuilder::getPalette ( )

Get palette for color conversion return coloring palette

EnumOptrisPaletteScalingMethod optris::ImageBuilder::getPaletteScalingMethod ( )

Accessor for activated color conversion mode

Returns:: Scaling method

void optris::ImageBuilder::getPaletteTable ( paletteTable & table )

Get palette table for color conversion

Returns:: coloring palette table as rgb triple

unsigned int optris::ImageBuilder::getStride ( void )

If memory alignment is needed, this class provides a stride parameter configured with setSize(...). Memory will be aligned such that the image width is a multiple of 4

float optris::ImageBuilder::getTemperatureAt ( int index )

Get temperature from last acquired image at specified image index

Parameters:

[in] index Image index (must be within [0; getWidth()*getHeight()]) return temperature in degree Celsius

float optris::ImageBuilder::getTemperatureAt	(	int	u,
		int	v
	)

Get temperature from last acquired image at specified image coordinates

Parameters:

[in]	u	Image column (must be within [0; getWidth()])
[in]	v	Image row (must be within [0; getHeight()]) return temperature in degree Celsius

unsigned int optris::ImageBuilder::getWidth ( )

Get image width

Returns:: image width

void optris::ImageBuilder::setData	(	unsigned int	width,
		unsigned int	height,
		unsigned short *	data
	)

Set new data

Parameters:

[in]	width	image width
[in]	height	image height
[in]	data	image data

void optris::ImageBuilder::setManualTemperatureRange	(	float	min,
		float	max
	)

Set temperature range for manual scaling method

Parameters:

[in]	min	Lower limit in °C
[in]	max	Upper limit in °C

void optris::ImageBuilder::setPalette ( EnumOptrisColoringPalette palette )

Set palette for color conversion

Parameters:

[in] palette coloring palette

void optris::ImageBuilder::setPaletteScalingMethod ( EnumOptrisPaletteScalingMethod method )

Scaling method of color conversion

Parameters:

[in] method Scaling method

void optris::ImageBuilder::yuv422torgb24	(	const unsigned char *	src,
		unsigned char *	dst,
		unsigned int	w,
		unsigned int	h
	)

Convert YUV422 image to RGB format (8-Bit per channel)

Parameters:

[in]	src	source image
[out]	dst	destination image
	w	image width
	h	image height

Member Data Documentation

bool optris::ImageBuilder::_alignStride [private]

Memory alignment

Definition at line 288 of file ImageBuilder.h.

unsigned short* optris::ImageBuilder::_data [private]

Image data

Definition at line 238 of file ImageBuilder.h.

unsigned int optris::ImageBuilder::_height [private]

Real height of Imager-Matrix

Definition at line 268 of file ImageBuilder.h.

unsigned long* optris::ImageBuilder::_integral [private]

Integral image

Definition at line 243 of file ImageBuilder.h.

bool optris::ImageBuilder::_integralIsDirty [private]

Flag for recomputation of integral image

Definition at line 293 of file ImageBuilder.h.

unsigned short optris::ImageBuilder::_max [private]

Maximum temperature of display range

Definition at line 258 of file ImageBuilder.h.

unsigned short optris::ImageBuilder::_min [private]

Minimum temperature of display range

Definition at line 253 of file ImageBuilder.h.

EnumOptrisColoringPalette optris::ImageBuilder::_palette [private]

Coloring palette for conversion method

Definition at line 283 of file ImageBuilder.h.

EnumOptrisPaletteScalingMethod optris::ImageBuilder::_scalingMethod [private]

Variable indicating the temperature range scaling method

Definition at line 248 of file ImageBuilder.h.

unsigned int optris::ImageBuilder::_size [private]

Real size if Imager-Matrix

Definition at line 278 of file ImageBuilder.h.

unsigned int optris::ImageBuilder::_stride [private]

Width including additional pixels in every row of Imager-Matrix to fit the modulo-4-criteria

Definition at line 273 of file ImageBuilder.h.

unsigned int optris::ImageBuilder::_width [private]

Real width of Imager-Matrix

Definition at line 263 of file ImageBuilder.h.

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

ImageBuilder.h

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation