Module org.scijava.ops.image

Package org.scijava.ops.image.image.watershed

Class Watershed<T extends RealType<T>,B extends BooleanType<B>>

java.lang.Object

org.scijava.ops.image.image.watershed.Watershed<T,B>

Type Parameters:

T - element type of input

B - element type of mask

All Implemented Interfaces:

Computers.Arity4<RandomAccessibleInterval<T>,Boolean,Boolean,RandomAccessibleInterval<B>,ImgLabeling<Integer,IntType>>, Consumers.Arity5<RandomAccessibleInterval<T>,Boolean,Boolean,RandomAccessibleInterval<B>,ImgLabeling<Integer,IntType>>

public class Watershed<T extends RealType<T>,B extends BooleanType<B>>
extends Object
implements Computers.Arity4<RandomAccessibleInterval<T>,Boolean,Boolean,RandomAccessibleInterval<B>,ImgLabeling<Integer,IntType>>

The Watershed algorithm segments and labels a grayscale image analogous to a heightmap. In short, a drop of water following the gradient of an image flows along a path to finally reach a local minimum.

Lee Vincent, Pierre Soille, Watersheds in digital spaces: An efficient algorithm based on immersion simulations, IEEE Trans. Pattern Anal. Machine Intell., 13(6) 583-598 (1991)

Input is a grayscale image with arbitrary number of dimensions, defining the heightmap. It needs to be defined whether a neighborhood with eight- or four-connectivity (respective to 2D) is used. A binary image can be set as mask which defines the area where computation shall be done. If desired, the watersheds are drawn and labeled as 0. Otherwise the watersheds will be labeled as one of their neighbors.

Output is a labeling of the different catchment basins.

Author:

Simon Schmid (University of Konstanz)

Implementation Note:

op names='image.watershed'

Constructor Summary

Constructors

Constructor	Description
Watershed()

Method Summary

Modifier and Type	Method	Description
void	compute(RandomAccessibleInterval<T> in, Boolean useEightConnectivity, Boolean drawWatersheds, RandomAccessibleInterval<B> mask, ImgLabeling<Integer,IntType> outputLabeling)	TODO

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.scijava.function.Computers.Arity4

accept

Methods inherited from interface org.scijava.function.Consumers.Arity5

andThen

Constructor Detail

Watershed

public Watershed()

Method Detail

compute

public void compute(RandomAccessibleInterval<T> in,
                    Boolean useEightConnectivity,
                    Boolean drawWatersheds,
                    RandomAccessibleInterval<B> mask,
                    ImgLabeling<Integer,IntType> outputLabeling)

TODO

Specified by:

compute in interface Computers.Arity4<RandomAccessibleInterval<T extends RealType<T>>,Boolean,Boolean,RandomAccessibleInterval<B extends BooleanType<B>>,ImgLabeling<Integer,IntType>>

Parameters:

in -

useEightConnectivity -

drawWatersheds -

mask -

outputLabeling -