Ejemplo n.º 1
0
        }         // Transform

        //   * Constructor; needs some object like DiscreteFourierTransform,
        //   * FastWaveletTransform, WaveletPacketTransfom, ... It take also a number of iteration for decomposition
        //   *
        //   * @date 19.05.2009 09:50:24
        //   * @author Christian Scheiblich
        public Transform(TransformInterface transform, int iteration)
        {
            if (transform is WaveletTransform)
            {
                _transform = transform;
                ((WaveletTransform)_transform).set_iteration(iteration);
            }
            else
            {
                throw new ArgumentException("Can't use transform :" + transform.GetType() + " with a specific level decomposition ;" + " use Transform( TransformI transform ) constructor instead.");
            }
        }         // Transform
Ejemplo n.º 2
0
		} // Transform

		//   * Constructor; needs some object like DiscreteFourierTransform,
		//   * FastWaveletTransform, WaveletPacketTransfom, ... It take also a number of iteration for decomposition
		//   * 
		//   * @date 19.05.2009 09:50:24
		//   * @author Christian Scheiblich
		public Transform(TransformInterface transform, int iteration)
		{
			if(transform is WaveletTransform)
			{
				_transform = transform;
				((WaveletTransform)_transform).set_iteration(iteration);
			}
			else
			{
				throw new ArgumentException("Can't use transform :" + transform.GetType() + " with a specific level decomposition ;" + " use Transform( TransformI transform ) constructor instead.");
			}
		} // Transform
Ejemplo n.º 3
0
 //   * Constructor; needs some object like DiscreteFourierTransform,
 //   * FastWaveletTransform, WaveletPacketTransfom, ...
 //   *
 //   * @date 19.05.2009 09:50:24
 //   * @author Christian Scheiblich
 //   * @param transform Transform object
 public Transform(TransformInterface transform)
 {
     _transform = transform;
 }         // Transform
Ejemplo n.º 4
0
        }         // JWave

        //   * Main method for doing little test runs for different transform types and
        //   * different wavelets without JUnit. Requesting the transform type and the
        //   * type of wavelet to be used else usage is printed.
        //   *
        //   * @date 23.02.2010 14:26:47
        //   * @author Christian Scheiblich
        //   * @param args
        //   *          [transformType] [waveletType]
        //
        public static void RunTests(string[] args)
        {
            string waveletTypeList = "Haar02, Lege02, Daub02, Lege04, Daub03, Lege06, Coif06, Daub04";

            if (args.Length < 2 || args.Length > 3)
            {
                System.Console.Error.WriteLine("usage: JWave [transformType] {waveletType} {noOfSteps}");
                System.Console.Error.WriteLine("");
                System.Console.Error.WriteLine("transformType: DFT, FWT, WPT, DWT");
                System.Console.Error.WriteLine("waveletType : " + waveletTypeList);
                System.Console.Error.WriteLine("noOfSteps : " + "no of steps forward and reverse; optional");
                return;
            }             // if args

            string           wType   = args[1];
            WaveletInterface wavelet = null;

            if (wType.Equals("haar02", StringComparison.InvariantCultureIgnoreCase))
            {
                wavelet = new Haar02();
            }
            else if (wType.Equals("lege02", StringComparison.InvariantCultureIgnoreCase))
            {
                wavelet = new Lege02();
            }
            else if (wType.Equals("daub04", StringComparison.InvariantCultureIgnoreCase))
            {
                wavelet = new Daub02();
            }
            else if (wType.Equals("lege04", StringComparison.InvariantCultureIgnoreCase))
            {
                wavelet = new Lege04();
            }
            else if (wType.Equals("daub06", StringComparison.InvariantCultureIgnoreCase))
            {
                wavelet = new Daub03();
            }
            else if (wType.Equals("lege06", StringComparison.InvariantCultureIgnoreCase))
            {
                wavelet = new Lege06();
            }
            else if (wType.Equals("coif06", StringComparison.InvariantCultureIgnoreCase))
            {
                wavelet = new Coif06();
            }
            else if (wType.Equals("daub08", StringComparison.InvariantCultureIgnoreCase))
            {
                wavelet = new Daub04();
            }
            else
            {
                System.Console.Error.WriteLine("usage: JWave [transformType] {waveletType}");
                System.Console.Error.WriteLine("");
                System.Console.Error.WriteLine("available wavelets are " + waveletTypeList);
                return;
            }             // if wType

            string             tType = args[0];
            TransformInterface bWave = null;

            if (tType.Equals("dft", StringComparison.InvariantCultureIgnoreCase))
            {
                bWave = new DiscreteFourierTransform();
            }
            else if (tType.Equals("fwt", StringComparison.InvariantCultureIgnoreCase))
            {
                bWave = new FastWaveletTransform(wavelet);
            }
            else if (tType.Equals("wpt", StringComparison.InvariantCultureIgnoreCase))
            {
                bWave = new WaveletPacketTransform(wavelet);
            }
            else if (tType.Equals("dwt", StringComparison.InvariantCultureIgnoreCase))
            {
                bWave = new DiscreteWaveletTransform(wavelet);
            }
            else
            {
                System.Console.Error.WriteLine("usage: JWave [transformType] {waveletType}");
                System.Console.Error.WriteLine("");
                System.Console.Error.WriteLine("available transforms are DFT, FWT, WPT, DFT");
                return;
            }             // if tType

            // instance of transform
            Transform t;

            if (args.Length > 2)
            {
                string argNoOfSteps = args[2];
                int    noOfSteps    = Convert.ToInt32(argNoOfSteps);

                t = new Transform(bWave, noOfSteps);                 // perform less steps than possible
            }
            else
            {
                t = new Transform(bWave);                 // perform all steps
            }

            double[] arrTime = { 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 };

            Console.WriteLine("");
            Console.WriteLine("time domain:");
            for (int p = 0; p < arrTime.Length; p++)
            {
                Console.Write("{0,9:F6}", arrTime[p]);
            }
            Console.WriteLine("");

            double[] arrFreqOrHilb = t.forward(arrTime);             // 1-D forward transform

            if (bWave is DiscreteFourierTransform)
            {
                Console.WriteLine("frequency domain:");
            }
            else
            {
                Console.WriteLine("Hilbert domain:");
            }
            for (int p = 0; p < arrTime.Length; p++)
            {
                Console.Write("{0,9:F6}", arrFreqOrHilb[p]);
            }
            Console.WriteLine("");

            double[] arrReco = t.reverse(arrFreqOrHilb);             // 1-D reverse transform

            Console.WriteLine("reconstruction:");
            for (int p = 0; p < arrTime.Length; p++)
            {
                Console.Write("{0,9:F6}", arrReco[p]);
            }
            Console.WriteLine("");
        } // main
Ejemplo n.º 5
0
		//   * Constructor; needs some object like DiscreteFourierTransform,
		//   * FastWaveletTransform, WaveletPacketTransfom, ...
		//   * 
		//   * @date 19.05.2009 09:50:24
		//   * @author Christian Scheiblich
		//   * @param transform Transform object
		public Transform(TransformInterface transform)
		{
			_transform = transform;
		} // Transform