Openholo Light Field based CGH generation. More...

#include <ophLightField.h>

Inheritance diagram for ophLF:

Collaboration diagram for ophLF:

[legend]

Public Member Functions
	ophLF (void)
	Constructor. More...

void	setNumImage (int nx, int ny)

void	setNumImage (ivec2 num)

void	setResolImage (int nx, int ny)

void	setResolImage (ivec2 num)

void	setDistRS2Holo (Real dist)

void	setFieldLens (Real lens)

ivec2	getNumImage ()

ivec2	getResolImage ()

Real	getDistRS2Holo ()

Real	getFieldLens ()

vector< uchar * >	getLF ()

vector< Complex< Real > * >	getRSPlane ()

bool	readConfig (const char *fname)
	Light Field based CGH configuration file load. More...

int	loadLF (const char directory, const char exten)
	Light Field images load. More...

void	generateHologram ()
	Hologram generation. More...

void	writeIntensity_gray8_bmp (const char fileName, int nx, int ny, Complex< Real > complexvalue, int k=-1)

void	setViewingWindow (bool is_ViewingWindow)
	Set the value of a variable is_ViewingWindow(true or false) More...

Public Member Functions inherited from ophGen
	ophGen (void)
	Constructor. More...

Real **	getEncodedBuffer (void)
	Function for getting the encoded complex field buffer. More...

uchar **	getNormalizedBuffer (void)
	Function for getting the normalized(0~255) complex field buffer. More...

void	initialize (void)
	Initialize variables for Hologram complex field, encoded data, normalized data. More...

int	loadPointCloud (const char pc_file, OphPointCloudData pc_data_)
	load to point cloud data. More...

bool	readConfig (const char *fname)
	load to configuration file. More...

void	RS_Diffraction (Point src, Complex< Real > *dst, Real lambda, Real distance, Real amplitude)
	RS-diffraction method. More...

void	Fresnel_Diffraction (Point src, Complex< Real > *dst, Real lambda, Real distance, Real amplitude)
	Fresnel-diffraction method. More...

void	Fresnel_FFT (Complex< Real > src, Complex< Real > dst, Real lambda, Real distance)
	Fresnel-fft method. More...

void	AngularSpectrumMethod (Complex< Real > src, Complex< Real > dst, Real lambda, Real distance)
	Angular spectrum propagation method. More...

void	conv_fft2 (Complex< Real > src1, Complex< Real > src2, Complex< Real > *dst, ivec2 size)
	Convolution between Complex arrays which have same size. More...

void	normalize (void)
	Normalization function to save as image file after hologram creation. More...

bool	save (const char fname, uint8_t bitsperpixel=8, uchar src=nullptr, uint px=0, uint py=0)
	Function for saving image files. More...

void *	load (const char *fname)
	Function for loading image files. More...

virtual bool	loadAsOhc (const char *fname)
	Function to read OHC file. More...

void	setPrecision (uint precision)
	Function for setting precision. More...

uint	getPrecision ()

void	setEncodeMethod (unsigned int ENCODE_FLAG)

void	encoding (unsigned int ENCODE_FLAG)
	Encoding Functions. More...

void	encoding (unsigned int ENCODE_FLAG, Complex< Real > holo, Real encoded)

void	encoding ()

virtual void	encoding (unsigned int ENCODE_FLAG, unsigned int SSB_PASSBAND, Complex< Real > holo=nullptr, Real encoded=nullptr)

void	encoding (unsigned int BIN_ENCODE_FLAG, unsigned int ENCODE_FLAG, Real threshold, Complex< Real > holo=nullptr, Real encoded=nullptr)
	Binary Encoding Functions. More...

bool	Shift (Real x, Real y)

void	waveCarry (Real carryingAngleX, Real carryingAngleY, Real distance)
	Wave carry. More...

void	waveCarry (Complex< Real > src, Complex< Real > dst, Real wavelength, int carryIdxX, int carryIdxY)

void	transVW (int nVertex, Vertex dst, Vertex src)

void	transVW (int nVertex, Real dst, Real src)

int	getStream ()

Real	getFieldLength ()

ivec2 &	getEncodeSize (void)
	Function for getting encode size. More...

void	setResolution (ivec2 resolution)
	Function for setting buffer size. More...

Real	getElapsedTime ()
	Function for getting elapsed time. More...

bool	saveRefImages (char fnameW, char fnameWC, char fnameAS, char fnameSSB, char fnameHP, char fnameFreq, char fnameReal, char fnameBin, char fnameReconBin, char fnameReconErr, char *fnameReconNo)

void	fresnelPropagation (Complex< Real > in, Complex< Real > out, Real distance, uint channel)
	Fresnel propagation. More...

void	SetRandomPhase (bool bRandomPhase)
	Function for setting the random phase. More...

bool	GetRandomPhase ()
	Function for getting the random phase. More...

void	SetMode (unsigned int mode)

unsigned int	GetMode ()

Public Member Functions inherited from Openholo
	Openholo (void)
	Constructor. More...

virtual bool	saveAsImg (const char fname, uint8_t bitsperpixel, uchar src, int width, int height)
	Function for creating image files. More...

virtual uchar *	loadAsImg (const char *fname)
	Function for loading image files. More...

virtual bool	saveAsOhc (const char *fname)
	Function to write OHC file More...

Complex< Real > **	getComplexField (void)
	Function for getting the complex field. More...

OphConfig &	getContext (void)
	Function for getting the current context. More...

ImageConfig &	getImageConfig ()
	Function for getting the image config. More...

void	setPixelNumber (ivec2 n)
	Function for setting the output resolution. More...

void	setPixelNumber (int width, int height)

void	setPixelPitch (vec2 p)
	Function for setting the output pixel pitch. More...

void	setPixelPitch (Real pitchX, Real pitchY)

void	setWaveLength (Real w, const uint idx=0)
	Function for setting the wave length. More...

void	setWaveNum (int num)
	Function for setting the wave number. More...

void	setOffset (ivec2 offset)
	Function for setting the offset. More...

void	setImageMerge (bool merge)
	Function for setting the image merge(true or false) More...

void	setImageRotate (bool rotate)
	Function for setting the image rotate(true or false) More...

void	setImageFlip (int flip)
	Function for setting the image flip. More...

void	setMaxThreadNum (int num)
	Function for setting the max thread num. More...

int	getMaxThreadNum ()
	Function for getting the max thread num. More...

bool	mergeColor (int idx, int width, int height, uchar src, uchar dst)
	Function for generate RGB image from each grayscale image. More...

bool	separateColor (int idx, int width, int height, uchar src, uchar dst)
	Function for generate each grayscale image from RGB image. More...

Public Member Functions inherited from Base
	Base (void)
	Constructor. More...

unsigned long	addRef (void)
	If referenced this(Base's child, not abstract class) instance, must call this method. More...

unsigned long	release (void)
	Call release() when reference is finished. More...

Protected Member Functions
virtual	~ophLF (void)
	Destructor. More...

void	initializeLF ()

void	convertLF2ComplexField ()

void	convertLF2ComplexField_GPU ()

void	ophFree ()
	Pure virtual function for override in child classes. More...

Protected Member Functions inherited from ophGen
virtual	~ophGen (void)=0
	Destructor. More...

bool	save (const char fname, uint8_t bitsperpixel, uint px, uint py, uint fnum, uchar args ...)
	Called when saving multiple hologram data at a time. More...

void	resetBuffer ()
	reset buffer More...

template<typename T >
void	RealPart (Complex< T > holo, T encoded, const int size)
	Encoding method. More...

template<typename T >
void	ImaginaryPart (Complex< T > holo, T encoded, const int size)

template<typename T >
void	Phase (Complex< T > holo, T encoded, const int size)

template<typename T >
void	Amplitude (Complex< T > holo, T encoded, const int size)

template<typename T >
void	TwoPhase (Complex< T > holo, T encoded, const int size)

template<typename T >
void	Burckhardt (Complex< T > holo, T encoded, const int size)

template<typename T >
void	SimpleNI (Complex< T > holo, T encoded, const int size)

void	singleSideBand (Complex< Real > holo, Real encoded, const ivec2 holosize, int passband)
	Encoding method. More...

void	freqShift (Complex< Real > holo, Complex< Real > encoded, const ivec2 holosize, int shift_x, int shift_y)
	Frequency shift. More...

bool	binaryErrorDiffusion (Complex< Real > holo, Real encoded, const ivec2 holosize, const int type, Real threshold)

bool	getWeightED (const ivec2 holosize, const int type, ivec2 *pNw)

bool	shiftW (ivec2 holosize)

void	binarization (Complex< Real > src, Real dst, const int size, int ENCODE_FLAG, Real threshold)

void	CorrectionChromaticAberration (uchar src, uchar dst, int width, int height, int scaleFactor=2)

void	encodeSideBand (unsigned int passband)
	Encode the CGH according to a passband parameter. More...

void	encodeSideBand_CPU (int cropx1, int cropx2, int cropy1, int cropy2, ivec2 sig_location)
	Encode the CGH according to a signal location parameter on the CPU. More...

void	encodeSideBand_GPU (int cropx1, int cropx2, int cropy1, int cropy2, ivec2 sig_location)
	Encode the CGH according to a signal location parameter on the GPU. More...

void	getShiftPhaseValue (Complex< Real > &shift_phase_val, int idx, ivec2 sig_location)
	Calculate the shift phase value. More...

void	GetRandomPhaseValue (Complex< Real > &rand_phase_val, bool rand_phase)
	Assign random phase value if random_phase == 1. More...

void	ScaleChange (Real src, Real dst, int nSize, Real scaleX, Real scaleY, Real scaleZ)

void	GetMaxMin (Real *src, int len, Real &max, Real &min)

Protected Member Functions inherited from Openholo
virtual	~Openholo (void)=0
	Destructor. More...

bool	checkExtension (const char fname, const char ext)
	Functions for extension checking. More...

bool	loadAsImgUpSideDown (const char fname, uchar dst)
	Function for loading image files \| Output image data upside down. More...

bool	getImgSize (int &w, int &h, int &bytesperpixel, const char *fname)
	Function for getting the image size. More...

void	imgScaleBilinear (uchar src, uchar dst, int w, int h, int neww, int newh, int channels=1)
	Function for change image size. More...

void	convertToFormatGray8 (uchar src, uchar dst, int w, int h, int bytesperpixel)
	Function for convert image format to gray8. More...

void	fft1 (int n, Complex< Real > *in, int sign=OPH_FORWARD, uint flag=OPH_ESTIMATE)
	Functions for performing fftw 1-dimension operations inside Openholo. More...

void	fft2 (ivec2 n, Complex< Real > *in, int sign=OPH_FORWARD, uint flag=OPH_ESTIMATE)
	Functions for performing fftw 2-dimension operations inside Openholo. More...

void	fft3 (ivec3 n, Complex< Real > *in, int sign=OPH_FORWARD, uint flag=OPH_ESTIMATE)
	Functions for performing fftw 3-dimension operations inside Openholo. More...

void	fftExecute (Complex< Real > *out, bool bReverse=false)
	Execution functions to be called after fft1, fft2, and fft3. More...

void	fftFree (void)
	Resource release method. More...

void	fftInit2D (ivec2 size, int sign, unsigned int flag)
	initialize method for 2D FFT More...

void	fft2 (Complex< Real > src, Complex< Real > dst, int nx, int ny, int type, bool bNormalized=false, bool bShift=true)
	Convert data from the spatial domain to the frequency domain using 2D FFT on CPU. More...

void	fftShift (int nx, int ny, Complex< Real > input, Complex< Real > output)
	Swap the top-left quadrant of data with the bottom-right , and the top-right quadrant with the bottom-left. More...

void	setPixelNumberOHC (const ivec2 pixel_number)
	getter/setter for OHC file read and write More...

void	setPixelPitchOHC (const vec2 pixel_pitch)

void	setWavelengthOHC (const Real wavelength, const LenUnit wavelength_unit)

void	setWaveLengthNumOHC (const uint wavelength_num)

void	setColorTypeOHC (const ColorType color_type)

void	setColorArrangeOHC (const ColorArran color_arrange)

void	setWaveLengthUnitOHC (const LenUnit length_unit)

void	setFieldEncodingOHC (const FldStore field_store, const FldCodeType field_code_type)

void	setPhaseEncodingOHC (const BPhaseCode phase_code, const vec2 phase_code_range)

void	addWaveLengthNComplexFieldDataOHC (const Real wavelength, const OphComplexField &complex_field)
	Function to add ComplexField when adding wavelength data. More...

void	addWaveLengthOHC (const Real wavelength)

void	addComplexFieldDataOHC (const OphComplexField &complex_field)

void	getPixelNumberOHC (ivec2 &pixel_number)

void	getPixelPitchOHC (vec2 &pixel_pitch)

void	getWavelengthOHC (vector< Real > &wavelength)

void	getWaveLengthNumOHC (uint &wavelength_num)

void	getColorTypeOHC (ColorType &color_type)

void	getColorArrangeOHC (ColorArran &color_arrange)

void	getWaveLengthUnitOHC (LenUnit &length_unit)

void	getComplexFieldDataOHC (Complex< Real > **cmplx, uint wavelen_idx)

void	getComplexFieldDataOHC (OphComplexField &cmplx, uint wavelen_idx)

Protected Member Functions inherited from Base
virtual	~Base (void)
	Destructor. More...

Additional Inherited Members
Public Types inherited from ophGen
enum	PRECISION { SINGLE, DOUBLE }

enum	ENCODE_FLAG { ENCODE_PHASE, ENCODE_AMPLITUDE, ENCODE_REAL, ENCODE_IMAGINARY, ENCODE_SIMPLENI, ENCODE_BURCKHARDT, ENCODE_TWOPHASE, ENCODE_SSB, ENCODE_OFFSSB, ENCODE_SIMPLEBINARY, ENCODE_EDBINARY }

enum	SSB_PASSBAND { SSB_LEFT, SSB_RIGHT, SSB_TOP, SSB_BOTTOM }

enum	ED_WType { FLOYD_STEINBERG, SINGLE_RIGHT, SINGLE_DOWN, ITERATIVE_DESIGN }

Protected Attributes inherited from ophGen
ivec2	m_vecEncodeSize
	Encoded hologram size, varied from encoding type. More...

int	ENCODE_METHOD
	Encoding method flag. More...

int	SSB_PASSBAND
	Passband in Single-side band encoding. More...

Real	m_elapsedTime
	Elapsed time of generate hologram. More...

Real **	m_lpEncoded
	buffer to encoded. More...

uchar **	m_lpNormalized
	buffer to normalized. More...

Real	m_dFieldLength

int	m_nStream

unsigned int	m_mode

Complex< Real > *	AS
	Binary Encoding - Error diffusion. More...

Complex< Real > *	normalized

Complex< Real > *	fftTemp

Real *	weight

Complex< Real > *	weightC

Complex< Real > *	freqW

Real *	realEnc

Real *	binary

Real *	maskSSB

Real *	maskHP

bool	m_bRandomPhase

Protected Attributes inherited from Openholo
OphConfig	context_

ResolutionConfig	resCfg

ImageConfig	imgCfg

Complex< Real > **	complex_H

ImgEncoderOhc *	OHC_encoder
	OHC file format Variables for read and write. More...

ImgDecoderOhc *	OHC_decoder

Protected Attributes inherited from Base
unsigned long	refCnt

Detailed Description

Openholo Light Field based CGH generation.

Author: Yeon-Gyeong Ju, Jae-Hyeung Park

Definition at line 94 of file ophLightField.h.

Constructor & Destructor Documentation

◆ ophLF()

ophLF::ophLF ( void )

explicit

Constructor.

Definition at line 60 of file ophLightField.cpp.

◆ ~ophLF()

virtual ophLF::~ophLF ( void )

inlineprotectedvirtual

Destructor.

Definition at line 106 of file ophLightField.h.

Member Function Documentation

◆ convertLF2ComplexField()

void ophLF::convertLF2ComplexField ( )

protected

Definition at line 361 of file ophLightField.cpp.

◆ convertLF2ComplexField_GPU()

void ophLF::convertLF2ComplexField_GPU ( )

protected

Definition at line 50 of file ophLightField_GPU.cpp.

◆ generateHologram()

void ophLF::generateHologram ( void )

Hologram generation.

Returns: (*complex_H)

Definition at line 309 of file ophLightField.cpp.

◆ getDistRS2Holo()

Real ophLF::getDistRS2Holo ( )

inline

Definition at line 117 of file ophLightField.h.

◆ getFieldLens()

Real ophLF::getFieldLens ( void )

inline

Definition at line 118 of file ophLightField.h.

◆ getLF()

vector<uchar*> ophLF::getLF ( )

inline

Definition at line 119 of file ophLightField.h.

◆ getNumImage()

ivec2 ophLF::getNumImage ( )

inline

Definition at line 115 of file ophLightField.h.

◆ getResolImage()

ivec2 ophLF::getResolImage ( )

inline

Definition at line 116 of file ophLightField.h.

◆ getRSPlane()

vector<Complex<Real>*> ophLF::getRSPlane ( )

inline

Definition at line 120 of file ophLightField.h.

◆ initializeLF()

void ophLF::initializeLF ( )

protected

Definition at line 346 of file ophLightField.cpp.

◆ loadLF()

int ophLF::loadLF	(	const char *	directory,
		const char *	exten
	)

Light Field images load.

Parameters

directory	Directory which has the Light Field source image files
exten	Light Field images extension

Returns: LF This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 161 of file ophLightField.cpp.

◆ ophFree()

void ophLF::ophFree ( void )

protectedvirtual

Pure virtual function for override in child classes.

Reimplemented from ophGen.

Definition at line 475 of file ophLightField.cpp.

◆ readConfig()

bool ophLF::readConfig ( const char * fname )

Light Field based CGH configuration file load.

xml configuration file load

Returns: distanceRS2Holo; num_image; resolution_image; context_.pixel_pitch; context_.pixel_number; context_.lambda

Definition at line 76 of file ophLightField.cpp.

◆ setDistRS2Holo()

void ophLF::setDistRS2Holo ( Real dist )

inline

Definition at line 113 of file ophLightField.h.

◆ setFieldLens()

void ophLF::setFieldLens ( Real lens )

inline

Definition at line 114 of file ophLightField.h.

◆ setNumImage() [1/2]

void ophLF::setNumImage	(	int	nx,
		int	ny
	)

inline

Definition at line 109 of file ophLightField.h.

◆ setNumImage() [2/2]

void ophLF::setNumImage ( ivec2 num )

inline

Definition at line 110 of file ophLightField.h.

◆ setResolImage() [1/2]

void ophLF::setResolImage	(	int	nx,
		int	ny
	)

inline

Definition at line 111 of file ophLightField.h.

◆ setResolImage() [2/2]

void ophLF::setResolImage ( ivec2 num )

inline

Definition at line 112 of file ophLightField.h.

◆ setViewingWindow()

void ophLF::setViewingWindow ( bool is_ViewingWindow )

Set the value of a variable is_ViewingWindow(true or false)

if is_ViewingWindow == true
Transform viewing window
else
Hologram

Parameters

is_ViewingWindow : the value for specifying whether the hologram generation method is implemented on the viewing window

Definition at line 71 of file ophLightField.cpp.

◆ writeIntensity_gray8_bmp()

void ophLF::writeIntensity_gray8_bmp	(	const char *	fileName,
		int	nx,
		int	ny,
		Complex< Real > *	complexvalue,
		int	k = `-1`
	)

Definition at line 425 of file ophLightField.cpp.

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

C:/Users/KETI_VRAR2/source/repos/Openholo/ophgen/src/ophLightField.h
C:/Users/KETI_VRAR2/source/repos/Openholo/ophgen/src/ophLightField.cpp
C:/Users/KETI_VRAR2/source/repos/Openholo/ophgen/src/ophLightField_GPU.cpp

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ophLF()

◆ ~ophLF()

Member Function Documentation

◆ convertLF2ComplexField()

◆ convertLF2ComplexField_GPU()

◆ generateHologram()

◆ getDistRS2Holo()

◆ getFieldLens()

◆ getLF()

◆ getNumImage()

◆ getResolImage()

◆ getRSPlane()

◆ initializeLF()

◆ loadLF()

◆ ophFree()

◆ readConfig()

◆ setDistRS2Holo()

◆ setFieldLens()

◆ setNumImage() [1/2]

◆ setNumImage() [2/2]

◆ setResolImage() [1/2]

◆ setResolImage() [2/2]

◆ setViewingWindow()

◆ writeIntensity_gray8_bmp()