Package org.anchoranalysis.image.voxel.extracter.predicate

Class PredicateImplementation<T>

Object
PredicateImplementation<T>
Type Parameters:
T - buffer-type
All Implemented Interfaces:
VoxelsPredicate
public class PredicateImplementation<T> extends Object implements VoxelsPredicate
Implementation of VoxelsPredicate for a particular Voxels.
Author:
Owen Feehan

  • Constructor Details

    • PredicateImplementation

      public PredicateImplementation(Voxels<T> voxels, Predicate<T> predicate)
      Creates a new PredicateImplementation instance.
      Parameters:
      voxels - The voxels on which the predicate is based.
      predicate - Checks if the current value of a buffer matches a predicate

  • Method Details

    • anyExists

      public boolean anyExists()
      Description copied from interface: VoxelsPredicate
      Does at least one value satisfy the predicate - across all voxels?

      The computational cost of the operation is O(n) in the number of voxels in the worst-case. Typically, it exits earlier.

      Specified by:
      anyExists in interface VoxelsPredicate
      Returns:
      true iff at least one value exists.

    • count

      public int count()
      Description copied from interface: VoxelsPredicate
      Counts the number of values satisfying the predicate - across all voxels.

      The computational cost of the operation is O(n) in the number of voxels.

      Specified by:
      count in interface VoxelsPredicate
      Returns:
      the total count.

    • countForObject

      public int countForObject(ObjectMask object)
      Description copied from interface: VoxelsPredicate
      Counts the number of values satisfying the predicate - but restricted to voxels corresponding to on in an object-mask.

      The computational cost of the operation is O(n) in the number of voxels.

      Specified by:
      countForObject in interface VoxelsPredicate
      Parameters:
      object - the object-mask.
      Returns:
      the total count according to the above constraint.

    • higherCountExistsThan

      public boolean higherCountExistsThan(int threshold)
      Description copied from interface: VoxelsPredicate
      Whether the count is greater than a particular threshold.

      The computational cost of the operation is O(n) in the number of voxels in the worst-case. Typically, it exits earlier.

      Specified by:
      higherCountExistsThan in interface VoxelsPredicate
      Parameters:
      threshold - the threshold.
      Returns:
      true as soon as more voxels are counted than the threshold, false if it never occurs.

    • lowerCountExistsThan

      public boolean lowerCountExistsThan(int threshold)
      Description copied from interface: VoxelsPredicate
      Whether the count is less than a particular threshold.

      The computational cost of the operation is O(n) in the number of voxels in the worst-case. Typically, it exits earlier.

      Specified by:
      lowerCountExistsThan in interface VoxelsPredicate
      Parameters:
      threshold - the threshold.
      Returns:
      false as soon as as many voxels as threshold, true if it never occurs.

    • deriveObject

      public ObjectMask deriveObject(BoundingBox box)
      Description copied from interface: VoxelsPredicate
      Creates an ObjectMask for all the voxels inside the bounding-box satisfying the predicate.

      Any voxels satisfying the predicate are set to on.

      All other voxels are set to off.

      Unlike VoxelsPredicate.deriveObjectTight(), this operates only within a certain bounding-box, and always uses an identical bounding-box for the created ObjectMask as box.

      The computational cost of the operation is O(n) in the number of voxels in box only.

      Specified by:
      deriveObject in interface VoxelsPredicate
      Parameters:
      box - bounding-box.
      Returns:
      an object-mask referring to the bounding-box, with the same corner-position and size as box.

    • deriveObjectTight

      public Optional<ObjectMask> deriveObjectTight()
      Description copied from interface: VoxelsPredicate
      Creates an ObjectMask for all the voxels satisfying the predicate, minimally fitting the bounding-box to the on voxels only.

      Any voxels satisfying the predicate are set to on.

      All other voxels are set to off.

      Unlike VoxelsPredicate.deriveObject(BoundingBox), this operates all the voxels, and will typically use a much smaller bounding-box (fewer voxels) to describe the on voxels.

      The computational cost of the operation is O(n) in the number of voxels in box only.

      Specified by:
      deriveObjectTight in interface VoxelsPredicate
      Returns:
      an object-mask indicating all voxels that match the predicate, and with as minimal a bounding-box as possible to contain these. If no voxels match, then Optional.empty().