Package inra.ijpb.binary.distmap

Enum ChamferMasks2D

java.lang.Object
java.lang.Enum<ChamferMasks2D>
inra.ijpb.binary.distmap.ChamferMasks2D
All Implemented Interfaces:
java.io.Serializable, java.lang.Comparable<ChamferMasks2D>, java.lang.constant.Constable
public enum ChamferMasks2D
extends java.lang.Enum<ChamferMasks2D>

A pre-defined set of weights that can be used to compute distance transform using chamfer approximations of euclidean metric.

Provides methods to access weight values either as float array or as short array.

Example of use: 

 
 ChamferMask2D chamferMask = ChamferMasks2D.BORGEFORS.getMask();
 boolean normalize = true;
 DistanceTransform dt = new ChamferDistanceTransform2DFloat(chamferMask, normalize);
 ImageProcessor result = dt.distanceMap(inputImage);
See Also:
BinaryImages.distanceMap(ij.ImageStack), ChamferDistanceTransform3DShort

  • Nested Class Summary

    Nested classes/interfaces inherited from class java.lang.Enum

    java.lang.Enum.EnumDesc<E extends java.lang.Enum<E>>

  • Enum Constant Summary

    Enum Constants
    Enum Constant Description
    BORGEFORS
    Use weights 3 for orthogonal neighbors and 4 for diagonal neighbors, and 5 for cube-diagonals (best approximation for 3-by-3-by-3 masks).
    CHESSBOARD
    Use weight equal to 1 for all neighbors
    CHESSKNIGHT
    Use weights 5 for orthogonal neighbors and 7 for diagonal neighbors, and 11 for chess-knight moves (best approximation for 5-by-5 masks).
    CITY_BLOCK
    Use weights 1 for orthogonal neighbors and 2 for diagonal neighbors, and 3 for cube-diagonals.
    QUASI_EUCLIDEAN
    Use floating-point weights 1.0 for orthogonal neighbors and sqrt(2) for diagonal neighbors, and sqrt(3) for cube-diagonals.
    VERWER
    Chamfer mask in the 7-by-7 neighborhood defined using the four weights 12, 17, 27, and 38.

  • Method Summary

    Modifier and Type Method Description
    static ChamferMasks2D fromLabel​(java.lang.String label)
    Determines the operation type from its label.
    static java.lang.String[] getAllLabels()  
    ChamferMask2D getMask()  
    java.lang.String toString()  
    static ChamferMasks2D valueOf​(java.lang.String name)
    Returns the enum constant of this type with the specified name.
    static ChamferMasks2D[] values()
    Returns an array containing the constants of this enum type, in the order they are declared.

    Methods inherited from class java.lang.Enum

    compareTo, describeConstable, equals, getDeclaringClass, hashCode, name, ordinal, valueOf

    Methods inherited from class java.lang.Object

    getClass, notify, notifyAll, wait, wait, wait

  • Enum Constant Details

    • CHESSBOARD

      public static final ChamferMasks2D CHESSBOARD
      Use weight equal to 1 for all neighbors

    • CITY_BLOCK

      public static final ChamferMasks2D CITY_BLOCK
      Use weights 1 for orthogonal neighbors and 2 for diagonal neighbors, and 3 for cube-diagonals.

    • QUASI_EUCLIDEAN

      public static final ChamferMasks2D QUASI_EUCLIDEAN
      Use floating-point weights 1.0 for orthogonal neighbors and sqrt(2) for diagonal neighbors, and sqrt(3) for cube-diagonals. Use 10, 14 and 17 for the 16-bits integer version.

    • BORGEFORS

      public static final ChamferMasks2D BORGEFORS
      Use weights 3 for orthogonal neighbors and 4 for diagonal neighbors, and 5 for cube-diagonals (best approximation for 3-by-3-by-3 masks).

    • CHESSKNIGHT

      public static final ChamferMasks2D CHESSKNIGHT
      Use weights 5 for orthogonal neighbors and 7 for diagonal neighbors, and 11 for chess-knight moves (best approximation for 5-by-5 masks).

    • VERWER

      public static final ChamferMasks2D VERWER
      Chamfer mask in the 7-by-7 neighborhood defined using the four weights 12, 17, 27, and 38.

  • Method Details

    • values

      public static ChamferMasks2D[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      Returns:
      an array containing the constants of this enum type, in the order they are declared

    • valueOf

      public static ChamferMasks2D 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

    • getMask

      public ChamferMask2D getMask()
      Returns:
      the chamfer mask associated to this enumeration entry

    • toString

      public java.lang.String toString()
      Overrides:
      toString in class java.lang.Enum<ChamferMasks2D>

    • getAllLabels

      public static java.lang.String[] getAllLabels()
      Returns:
      the array of labels for this enumeration

    • fromLabel

      public static ChamferMasks2D fromLabel​(java.lang.String label)
      Determines the operation type from its label.
      Parameters:
      label - the name of a chamfer weight
      Returns:
      the ChamferMasks2D enum corresponding to the given name
      Throws:
      java.lang.IllegalArgumentException - if label name is not recognized.