Enum DstNormalization

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<DstNormalization>

    public enum DstNormalization
    extends java.lang.Enum<DstNormalization>
    This enumeration defines the various types of normalizations that can be applied to discrete sine transforms (DST). The exact definition of these normalizations is detailed below.
    Since:
    3.0
    See Also:
    FastSineTransformer
    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private DstNormalization()  
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static DstNormalization valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static DstNormalization[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      • Methods inherited from class java.lang.Enum

        clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf
      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait
    • Enum Constant Detail

      • STANDARD_DST_I

        public static final DstNormalization STANDARD_DST_I
        Should be passed to the constructor of FastSineTransformer to use the standard normalization convention. The standard DST-I normalization convention is defined as follows
        • forward transform: yn = ∑k=0N-1 xk sin(π nk / N),
        • inverse transform: xk = (2 / N) ∑n=0N-1 yn sin(π nk / N),
        where N is the size of the data sample, and x0 = 0.
      • ORTHOGONAL_DST_I

        public static final DstNormalization ORTHOGONAL_DST_I
        Should be passed to the constructor of FastSineTransformer to use the orthogonal normalization convention. The orthogonal DCT-I normalization convention is defined as follows
        • Forward transform: yn = √(2 / N) ∑k=0N-1 xk sin(π nk / N),
        • Inverse transform: xk = √(2 / N) ∑n=0N-1 yn sin(π nk / N),
        which makes the transform orthogonal. N is the size of the data sample, and x0 = 0.
    • Constructor Detail

      • DstNormalization

        private DstNormalization()
    • Method Detail

      • values

        public static DstNormalization[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
        for (DstNormalization c : DstNormalization.values())
            System.out.println(c);
        
        Returns:
        an array containing the constants of this enum type, in the order they are declared
      • valueOf

        public static DstNormalization valueOf​(java.lang.String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        Parameters:
        name - the name of the enum constant to be returned.
        Returns:
        the enum constant with the specified name
        Throws:
        java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
        java.lang.NullPointerException - if the argument is null