WatershedTransform2D (Fiji Javadocs 0-SNAPSHOT API)

java.lang.Object
- trainableSegmentation.utils.WatershedTransform2D

```
public class WatershedTransform2D
extends Object
```
Class to apply the classic watershed algorithm [1] to a 2D image. [1] Soille, Pierre, and Luc M. Vincent. "Determining watersheds in digital pictures via flooding simulations." Lausanne-DL tentative. International Society for Optics and Photonics, 1990.

Author:

Ignacio Arganda-Carreras

Field Summary

Fields
Modifier and Type Field and Description

protected boolean verbose
flag to output the transform steps and their execution times in the log window

Fields
Modifier and Type	Field and Description
`protected boolean`	`verbose` flag to output the transform steps and their execution times in the log window

Constructor Summary

Constructors
Constructor and Description
`WatershedTransform2D(ij.process.ImageProcessor input)` Construct a watershed transform
`WatershedTransform2D(ij.process.ImageProcessor input, int connectivity)` Construct a watershed transform

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`ij.process.ImageProcessor`	`apply()` Apply fast watersheds using flooding simulations, as described by Soille, Pierre, and Luc M.
`ArrayList<PixelRecord>`	`extractPixelValues(ij.process.ImageProcessor inputImage, double hMin, double hMax)` Extract pixel values from input image such that they have value h, hMin <= h <= hMax.
`int`	`getConnectivity()` Get the pixel connectivity (4 or 8)
`void`	`setConnectivity(int conn)` Set the pixel connectivity (4 or 8)
`void`	`setVerbose(boolean verbose)` Set verbose flag

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - verbose
```
protected boolean verbose
```
    flag to output the transform steps and their execution times in the log window
- Constructor Detail
  - WatershedTransform2D
```
public WatershedTransform2D(ij.process.ImageProcessor input)
```
    Construct a watershed transform
    
    Parameters:
    
    input - input image (usually a gradient image)
  - WatershedTransform2D
```
public WatershedTransform2D(ij.process.ImageProcessor input,
                            int connectivity)
```
    Construct a watershed transform
    
    Parameters:
    
    input - input image (usually a gradient image)
    
    connectivity - pixel connectivity (4 or 8)
- Method Detail
  - getConnectivity
```
public int getConnectivity()
```
    Get the pixel connectivity (4 or 8)
    
    Returns:
    
    pixel connectivity
  - setConnectivity
```
public void setConnectivity(int conn)
```
    Set the pixel connectivity (4 or 8)
    
    Parameters:
    
    conn - pixel connectivity
  - setVerbose
```
public void setVerbose(boolean verbose)
```
    Set verbose flag
    
    Parameters:
    
    verbose - new verbose flag
  - apply
```
public ij.process.ImageProcessor apply()
```
    Apply fast watersheds using flooding simulations, as described by Soille, Pierre, and Luc M. Vincent. "Determining watersheds in digital pictures via flooding simulations." Lausanne-DL tentative. International Society for Optics and Photonics, 1990.
    
    Returns:
    
    image of labeled catchment basins (with dams)
  - extractPixelValues
```
public ArrayList<PixelRecord> extractPixelValues(ij.process.ImageProcessor inputImage,
                                                 double hMin,
                                                 double hMax)
```
    Extract pixel values from input image such that they have value h, hMin <= h <= hMax.
    
    Parameters:
    
    inputImage - input image
    
    hMin - minimum grayscale height value
    
    hMax - maximum grayscale height value
    
    Returns:
    
    list of input pixel values

Class WatershedTransform2D

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

verbose

Constructor Detail

WatershedTransform2D

WatershedTransform2D

Method Detail

getConnectivity

setConnectivity

setVerbose

apply

extractPixelValues