math.fourierTransforms.r2
Class FFT1dComplexFloatImage

java.lang.Object
  math.fourierTransforms.r2.ComplexFloatImagePlane
      math.fourierTransforms.r2.FFT1dComplexFloatImage

public class FFT1dComplexFloatImage
extends ComplexFloatImagePlane

Field Summary

boolean

DisplayLogPSD

Fields inherited from class math.fourierTransforms.r2.ComplexFloatImagePlane

cB_i, cB_r, cG_i, cG_r, cR_i, cR_r

Constructor Summary

FFT1dComplexFloatImage()

Method Summary

void	complexMultMask(FFT1dComplexFloatImage fftRgb)
void	fft(float[] re, float[] im) 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()
float[][]	getRedImaginary()
float[][]	getRedReal()
ShortImageBean	getShortImageBean()
float[]	magnitudeSpectrum(float[] in_r, float[] in_i)
static void	main(java.lang.String[] args)
void	maskImage(int maskSize)
void	maskMult(FFT1dComplexFloatImage fftRgb)
int[]	reverse2dFFT()
void	reverseFFT(float[] in_r, float[] in_i)
void	swap(int i) 1D FFT utility functions.
static void	swapInt(float[] i_data1, float[] r_data1, int i, int j)
static void	testFFT()
void	TestFFT() A way to visually test the 1D FFT on a small amount of data.

Methods inherited from class math.fourierTransforms.r2.ComplexFloatImagePlane

getPsd, normalize, printStats

Methods inherited from class java.lang.Object

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

Field Detail

DisplayLogPSD

public boolean DisplayLogPSD

Constructor Detail

FFT1dComplexFloatImage

public FFT1dComplexFloatImage()

Method Detail

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[] re,
                float[] im)

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(FFT1dComplexFloatImage fftRgb)

maskMult

public void maskMult(FFT1dComplexFloatImage fftRgb)

testFFT

public static void testFFT()

main

public static void main(java.lang.String[] args)