math.fourierTransforms.r2
Class FFTrgb

java.lang.Object
  math.fourierTransforms.r2.FFTrgb

public class FFTrgb
extends java.lang.Object

Field Summary

float[][]	cB_i
float[][]	cB_r
float[][]	cG_i
float[][]	cG_r
float[][]	cR_i
float[][]	cR_r
boolean	DisplayLogPSD

Constructor Summary

FFTrgb()

Method Summary

void	complexMultMask(FFTrgb fftRgb)
void	fft(float[] in_r, float[] in_i) FFT engine.
static void	fftStatic(FFTrgb FFTrgb, float[] in_r, float[] in_i, int numBits) FFT engine.
int[]	forward2dFFT(float[] imageData_R, float[] imageData_G, float[] imageData_B, int imageWidth, int imageHeight)
int[]	forward2dFFT(short[] imageData_R, short[] imageData_G, short[] imageData_B, int imageWidth, int imageHeight)
void	forwardFFT(float[] in_r, float[] in_i)
float[][]	getBlueImaginary()
float[][]	getBlueReal()
float[][]	getGreenImaginary()
float[][]	getGreenReal()
int[]	getPhaseImage()
int[]	getPsd()
float[][]	getRedImaginary()
float[][]	getRedReal()
ShortImageBean	getShortImageBean()
float[]	magnitudeSpectrum(float[] in_r, float[] in_i)
void	maskImage(int maskSize)
void	maskMult(FFTrgb fftRgb)
void	mult(FFTShortImageBean k)
void	normalize(int w, int h)
void	printStats()
int[]	reverse2dFFT()
void	reverseFFT(float[] in_r, float[] in_i)
void	scale(float sc)
void	swap(int i) 1D FFT utility functions.
static void	swapInt(float[] i_data1, float[] r_data1, int i, int j)
void	TestFFT() A way to visually test the 1D FFT on a small amount of data.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DisplayLogPSD

public boolean DisplayLogPSD

cR_r

public float[][] cR_r

cG_r

public float[][] cG_r

cB_r

public float[][] cB_r

cR_i

public float[][] cR_i

cG_i

public float[][] cG_i

cB_i

public float[][] cB_i

Constructor Detail

FFTrgb

public FFTrgb()

Method Detail

printStats

public void printStats()

normalize

public void normalize(int w,
                      int h)

getPsd

public int[] getPsd()

getPhaseImage

public int[] getPhaseImage()

forward2dFFT

public int[] forward2dFFT(float[] imageData_R,
                          float[] imageData_G,
                          float[] imageData_B,
                          int imageWidth,
                          int imageHeight)

getShortImageBean

public ShortImageBean getShortImageBean()

maskImage

public void maskImage(int maskSize)

forward2dFFT

public int[] forward2dFFT(short[] imageData_R,
                          short[] imageData_G,
                          short[] imageData_B,
                          int imageWidth,
                          int imageHeight)

reverse2dFFT

public int[] reverse2dFFT()

TestFFT

public void TestFFT()

A way to visually test the 1D FFT on a small amount of data.

swap

public void swap(int i)

1D FFT utility functions.

swapInt

public static void swapInt(float[] i_data1,
                           float[] r_data1,
                           int i,
                           int j)

forwardFFT

public void forwardFFT(float[] in_r,
                       float[] in_i)

reverseFFT

public void reverseFFT(float[] in_r,
                       float[] in_i)

fft

public void fft(float[] in_r,
                float[] in_i)

FFT engine. 1D Complex fft with floats. It is Radix 2. Therefore, the size must be an integral power of 2, 2*4, 32,64, 128,256,512,1024

fftStatic

public static void fftStatic(FFTrgb FFTrgb,
                             float[] in_r,
                             float[] in_i,
                             int numBits)

FFT engine. 1D Complex fft with floats. It is Radix 2. Therefore, the size must be an integral power of 2, 2*4, 32,64, 128,256,512,1024

getRedReal

public float[][] getRedReal()

getRedImaginary

public float[][] getRedImaginary()

getGreenReal

public float[][] getGreenReal()

getGreenImaginary

public float[][] getGreenImaginary()

getBlueReal

public float[][] getBlueReal()

getBlueImaginary

public float[][] getBlueImaginary()

magnitudeSpectrum

public float[] magnitudeSpectrum(float[] in_r,
                                 float[] in_i)

complexMultMask

public void complexMultMask(FFTrgb fftRgb)

maskMult

public void maskMult(FFTrgb fftRgb)

scale

public void scale(float sc)

mult

public void mult(FFTShortImageBean k)