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AcademicFFT_XY_Z.java
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Tue, Nov 5, 07:31

AcademicFFT_XY_Z.java
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/*
* DeconvolutionLab2
*
* Conditions of use: You are free to use this software for research or
* educational purposes. In addition, we expect you to include adequate
* citations and acknowledgments whenever you present or publish results that
* are based on it.
*
* Reference: DeconvolutionLab2: An Open-Source Software for Deconvolution
* Microscopy D. Sage, L. Donati, F. Soulez, D. Fortun, G. Schmit, A. Seitz,
* R. Guiet, C. Vonesch, M Unser, Methods of Elsevier, 2017.
*/
/*
* Copyright 2010-2017 Biomedical Imaging Group at the EPFL.
*
* This file is part of DeconvolutionLab2 (DL2).
*
* DL2 is free software: you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* DL2 is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* DL2. If not, see <http://www.gnu.org/licenses/>.
*/
package fft.academic;
import deconvolutionlab.monitor.Monitors;
import fft.AbstractFFT;
import fft.Separability;
import signal.ComplexSignal;
import signal.RealSignal;
public class AcademicFFT_XY_Z extends AbstractFFT {
private AcademicFFT fftXY;
private AcademicFFT fftZ;
public AcademicFFT_XY_Z() {
super(Separability.XY_Z);
}
@Override
public void init(Monitors monitors, int nx, int ny, int nz) {
super.init(monitors, nx, ny, nz);
fftXY = new AcademicFFT(nx, ny, 0, 0);
fftZ = new AcademicFFT(nz, 0);
}
@Override
public void transformInternal(RealSignal x, ComplexSignal X) {
for (int k = 0; k < nz; k++) {
float real[] = new float[nx * ny];
float imag[] = new float[nx * ny];
System.arraycopy(x.data[k], 0, real, 0, nx * ny);
fftXY.directTransform(real, imag, null, null, AcademicFFT.InputDataType.REALINPUT);
X.setRealXY(k, real);
X.setImagXY(k, imag);
}
for (int i = 0; i < nx; i++)
for (int j = 0; j < ny; j++) {
float real[] = X.getRealZ(i, j);
float imag[] = X.getImagZ(i, j);
fftZ.directTransform(real, imag, null, null, AcademicFFT.InputDataType.COMPLEXINPUT);
X.setRealZ(i, j, real);
X.setImagZ(i, j, imag);
}
}
@Override
public void inverseInternal(ComplexSignal X, RealSignal x) {
for (int k = 0; k < nz; k++) {
float real[] = X.getRealXY(k);
float imag[] = X.getImagXY(k);
fftXY.inverseTransform(real, imag, null, null);
X.setRealXY(k, real);
X.setImagXY(k, imag);
}
for (int i = 0; i < nx; i++)
for (int j = 0; j < ny; j++) {
float real[] = X.getRealZ(i, j);
float imag[] = X.getImagZ(i, j);
fftZ.inverseTransform(real, imag, null, null);
x.setZ(i, j, real);
}
}
@Override
public String getName() {
return "AcademicFFT XY and Z";
}
@Override
public boolean isMultithreadable() {
return true;
}
}

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