math.complex
Class ComplexFloat1d

java.lang.Object
  math.complex.ComplexFloat1d

public class ComplexFloat1d
extends java.lang.Object

User: lyon Date: Nov 13, 2005 Time: 8:00:08 AM Copyright DocJava, Inc. 2005.

Field Summary

float[]	im
float[]	re

Constructor Summary

ComplexFloat1d()

ComplexFloat1d(float[] realPart, float[] imaginaryPart)

ComplexFloat1d(int n)

ComplexFloat1d(short[][] s)
Copy the s input into the real number plane and set the imaginary plane to zero.

Method Summary

void	center()
void	conjugate()
ComplexFloat1d	getCopy()
float[]	getIm()
float	getIm(int i)
int	getLength()
float	getMaxReal() Search the real part of the complex array
float	getMinReal() Search the real part of the complex array
float[]	getPSD()
static float[]	getPSD(float[] in_r, float[] in_i) Compute the power spectral density of the input arrays
float[]	getRe()
float	getRe(int i)
short[][]	getRealAs2dShort(int w, int h)
float	getRealSum()
float[]	logScaleMagnitude(float magScale)
static void	main(java.lang.String[] args)
void	minus(ComplexFloat1d b)
void	mult(ComplexFloat1d b)
void	normalize()
void	plus(ComplexFloat1d b)
void	print()
void	removeDcComponent()
void	scale(float sc)
void	scaleAndMask(short[][] r) Mask the image kernal with the real and imaginary numbers.
void	scaleIntoRange(float min, float max, int maxValueOuput)
void	setIm(float[] im)
void	setRe(float[] re)
void	setRe(short[] re)
void	swap(int i, int j)
void	swapInt(int i, int j)
void	thresh(int thresh)

Methods inherited from class java.lang.Object

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

Field Detail

re

public float[] re

im

public float[] im

Constructor Detail

ComplexFloat1d

public ComplexFloat1d()

ComplexFloat1d

public ComplexFloat1d(short[][] s)

Copy the s input into the real number plane and set the imaginary plane to zero.

Parameters:

s -

ComplexFloat1d

public ComplexFloat1d(int n)

ComplexFloat1d

public ComplexFloat1d(float[] realPart,
                      float[] imaginaryPart)

Method Detail

getRealAs2dShort

public short[][] getRealAs2dShort(int w,
                                  int h)

main

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

swapInt

public void swapInt(int i,
                    int j)

plus

public void plus(ComplexFloat1d b)

getCopy

public ComplexFloat1d getCopy()

scaleAndMask

public void scaleAndMask(short[][] r)

Mask the image kernal with the real and imaginary numbers. Assume the image kernal ranges from 0..255. Make it a unitary filter by dividing by 255.

Parameters:

r -

scale

public void scale(float sc)

mult

public void mult(ComplexFloat1d b)

minus

public void minus(ComplexFloat1d b)

logScaleMagnitude

public float[] logScaleMagnitude(float magScale)

getIm

public float[] getIm()

getIm

public float getIm(int i)

setIm

public void setIm(float[] im)

getRe

public float getRe(int i)

getRe

public float[] getRe()

getLength

public int getLength()

setRe

public void setRe(float[] re)

swap

public void swap(int i,
                 int j)

getPSD

public float[] getPSD()

getPSD

public static float[] getPSD(float[] in_r,
                             float[] in_i)

Compute the power spectral density of the input arrays

Parameters:

in_r - real part of an fft

in_i - imaginary part of an fft

Returns:

the psd.

center

public void center()

setRe

public void setRe(short[] re)

print

public void print()

normalize

public void normalize()

getMaxReal

public float getMaxReal()

Search the real part of the complex array

Returns:

the max value

getMinReal

public float getMinReal()

Search the real part of the complex array

Returns:

the min value

getRealSum

public float getRealSum()

conjugate

public void conjugate()

removeDcComponent

public void removeDcComponent()

scaleIntoRange

public void scaleIntoRange(float min,
                           float max,
                           int maxValueOuput)

thresh

public void thresh(int thresh)