Package gov.nih.mipav.model.algorithms

Class DiscreteCosineTransform

  • All Implemented Interfaces:
    java.awt.event.ActionListener, java.awt.event.WindowListener, java.lang.Runnable, java.util.EventListener
    public class DiscreteCosineTransform
extends AlgorithmBase
    This routines except the SLOW routines are ported from FORTRAN to Java from: ALGORITHM 749, COLLECTED ALGORITHMS FROM ACM. THIS WORK PUBLISHED IN TRANSACTIONS ON MATHEMATICAL SOFTWARE, VOL. 21, NO. 4, December, 1995, P. 372--378. This file contains 4 files separated by lines of the form C*** filename The filenames in this file are: driver.f driverd.f fct.f fctd.f driver.f and fct.f are float versions and driverd.f and fctd.f are double versions.

    From the ACM website: 

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  Revised 6/98
    SLOW routines adapted from: DCT and IDCT - listing 1 Copyright (c) 2001 Emil Mikulic. http://unix4lyfe.org/dct/ Feel free to do whatever you like with this code. Feel free to credit me.

    • Field Detail

      • constructionMethod

        private int constructionMethod

      • filterType

        private int filterType

      • f1

        private double f1

      • f2

        private double f2

      • filterOrder

        private int filterOrder

      • epsilon

        private double epsilon

      • rs

        private double rs

      • transformLength

        private int transformLength

      • testDataType

        private int testDataType

      • printData

        private boolean printData

      • RT2INV

        private final double RT2INV

      • fastAlgorithm

        private boolean fastAlgorithm

      • LENGTH

        private int LENGTH

      • IPOW

        private int IPOW

      • dims

        private int[] dims

      • xDim

        private int xDim

      • yDim

        private int yDim

      • transformImage

        private ModelImage transformImage

    • Constructor Detail

      • DiscreteCosineTransform

        public DiscreteCosineTransform()

      • DiscreteCosineTransform

        public DiscreteCosineTransform​(ModelImage transformImage,
                               ModelImage inverseImage,
                               ModelImage srcImg,
                               int constructionMethod,
                               int filterType,
                               double f1,
                               double f2,
                               int filterOrder,
                               double epsilon,
                               double rs)

      • DiscreteCosineTransform

        public DiscreteCosineTransform​(boolean fastAlgorithm,
                               int[] dims,
                               int testDataType,
                               boolean printData,
                               int filterType,
                               double filterVal1,
                               double filterVal2)

    • Method Detail

      • runAlgorithm

        public void runAlgorithm()
        Description copied from class: AlgorithmBase
        Actually runs the algorithm. Implemented by inheriting algorithms.
        Specified by:
        runAlgorithm in class AlgorithmBase

      • runTest

        public void runTest()

      • RANDOM

        public double RANDOM​(int[] IX,
                     int[] IY,
                     int[] IZ)

      • FCT2D

        private void FCT2D​(double[] F,
                   int xDim,
                   int yDim)

      • IFCT2D

        private void IFCT2D​(double[] F,
                    int xDim,
                    int yDim)

      • FCT

        private void FCT​(double[] F,
                 double[] C,
                 int transformLength,
                 int[] IFAULT)

      • IFCT

        private void IFCT​(double[] F,
                  double[] C,
                  int transformLength,
                  int[] IFAULT)

      • BITREV

        private void BITREV​(double[] F,
                    int transformLength)

      • SCRAMB

        private void SCRAMB​(double[] F,
                    int transformLength)

      • USCRAM

        private void USCRAM​(double[] F,
                    int transformLength)

      • INIFCT

        private void INIFCT​(double[] C,
                    int transformLength,
                    int[] IFAULT)

      • SLOWFCT

        private void SLOWFCT​(double[] F,
                     int transformLength)

      • SLOW2DFCT

        private void SLOW2DFCT​(double[] F,
                       int xDim,
                       int yDim)

      • SLOWIFCT

        private void SLOWIFCT​(double[] F,
                      int transformLength)

      • SLOW2DIFCT

        private void SLOW2DIFCT​(double[] F,
                        int xDim,
                        int yDim)

      • makeGaussianFilter

        private void makeGaussianFilter​(double[] buffer,
                                double rmsFreq)

      • makeButterworthFilter

        private void makeButterworthFilter​(double[] buffer,
                                   double fr1,
                                   double fr2)
        DOCUMENT ME!
        Parameters:
        fr1 - DOCUMENT ME!
        fr2 - DOCUMENT ME!

      • makeEllipticFilter

        private void makeEllipticFilter​(double[] buffer,
                                double fr1,
                                double fr2)

      • Chebyshev

        private double Chebyshev​(int order,
                         double w)

      • makeChebyshevTypeIFilter

        private void makeChebyshevTypeIFilter​(double[] buffer,
                                      double fr1,
                                      double fr2)

      • makeChebyshevTypeIIFilter

        private void makeChebyshevTypeIIFilter​(double[] buffer,
                                       double fr1,
                                       double fr2)