Package inra.ijpb.label.distmap

Class ChamferDistanceTransform3DShort

java.lang.Object
inra.ijpb.algo.AlgoStub
inra.ijpb.label.distmap.ChamferDistanceTransform3DShort
All Implemented Interfaces:
Algo, DistanceTransform3D
public class ChamferDistanceTransform3DShort
extends AlgoStub
implements DistanceTransform3D
Computes 3D distance transform on binary images using the chamfer weights provided by a ChamferWeights3D object, and using 16-bits integer computation. This version works also for label images. The implementation is a little bit different compared to the version for binary images, in particular, it makes use of the "Image3D" interface.
Author:
David Legland
See Also:
ChamferDistanceTransform3DShort

  • Constructor Details

    • ChamferDistanceTransform3DShort

      public ChamferDistanceTransform3DShort​(ChamferMask3D mask)
      Creates a new algorithm for computing 3D distance maps on label images based on a chamfer mask. Use normalization of resulting distance map.
      Parameters:
      mask - the chamfer mask used for propagating distances

    • ChamferDistanceTransform3DShort

      public ChamferDistanceTransform3DShort​(ChamferMask3D mask, boolean normalize)
      Creates a new algorithm for computing 3D distance maps on label images based on a chamfer mask.
      Parameters:
      mask - the chamfer mask to use for propagating distances
      normalize - whether distance map should be normalized by the weight associated to orthogonal shifts

  • Method Details

    • distanceMap

      public ij.ImageStack distanceMap​(ij.ImageStack image)
      Computes the distance map from a 3D binary image. Distance is computed for each foreground (white) pixel, as the chamfer distance to the nearest background (black) pixel.
      Specified by:
      distanceMap in interface DistanceTransform3D
      Parameters:
      image - a 3D binary image with white pixels (255) as foreground
      Returns:
      a new 3D image containing:
      • 0 for each background pixel
      • the distance to the nearest background pixel otherwise