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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--fractsplinewavelets.FFT2D
Plugin of ImageJ:
Fractional Spline Wavelet
Authors:
Gil Gaillard,
Michael Liebling michael.liebling@epfl.ch,
Daniel Sage
daniel.sage@epfl.ch
Swiss Federal Institute of Technology Lausanne,
Biomedical Imaging Group,
CH-1015 Lausanne, Switzerland,
http://bigwww.epfl.ch
Version:
24 January 2002
Copyright
Copyright © 2002, Swiss Federal Institute of Technology, Lausanne, Switzerland, (EPFL)
Purpose of the class:
Perform a 2D FFT.
Constructor Summary | |
FFT2D()
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Method Summary | |
static void |
convertCartesianToPolar(fractsplinewavelets.ImageAccess real,
fractsplinewavelets.ImageAccess imaginary)
Perform the transform Cartesian to polar coordonates. |
static void |
convertPolarToCartesian(fractsplinewavelets.ImageAccess Magnitude,
fractsplinewavelets.ImageAccess Phase)
Perform the transform Polar to cartesian coordinates. |
static void |
inverse(fractsplinewavelets.ImageAccess imageReal,
fractsplinewavelets.ImageAccess imageImag)
Perform an inverse 2D FFT |
static void |
transform(fractsplinewavelets.ImageAccess imageReal,
fractsplinewavelets.ImageAccess imageImag)
Perform a 2D FFT |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public FFT2D()
Method Detail |
public static void transform(fractsplinewavelets.ImageAccess imageReal, fractsplinewavelets.ImageAccess imageImag)
imageReal
- input: Signal, output: Fourier coefficients (real part)imag
- input: Signal, output: Fourier coefficients (imaginary part)public static void inverse(fractsplinewavelets.ImageAccess imageReal, fractsplinewavelets.ImageAccess imageImag)
imageReal
- input: Fourier coefficients (real part) , output: Signal (real part)imageImag
- input: Fourier coefficients (imaginary part), output: nothingpublic static void convertCartesianToPolar(fractsplinewavelets.ImageAccess real, fractsplinewavelets.ImageAccess imaginary)
real
- Input: an ImageAccess object containing the real part of the image.
Output: the module (i.e the magnitude) of the complex imageimaginary
- Input: an ImageAccess object containing the imaginary part of the image.
Output: the phase of the complex imagepublic static void convertPolarToCartesian(fractsplinewavelets.ImageAccess Magnitude, fractsplinewavelets.ImageAccess Phase)
Magnitude
- Input: an ImageAccess object containing the magnitude of the image.
Output: the real part of the complex imagePhase
- Input: an ImageAccess object containing the phase of the image.
Output: the imaginary part of the complex image
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