FullyConstrainedLSU (SNAP Engine API)

java.lang.Object
- org.esa.snap.core.util.math.FullyConstrainedLSU

All Implemented Interfaces:

SpectralUnmixing
```
public class FullyConstrainedLSU
extends Object
implements SpectralUnmixing
```
Performs a fully constrained linear spectral unmixing, where all abundances are non-negative and their sum is equal to unity.

Since:

4.1

Constructor Summary

Constructors
Constructor Description

FullyConstrainedLSU(double[][] endmembers)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double[][]`	`mix(double[][] abundances)`	Calculates the spectra for a set of abundances.
`double[][]`	`unmix(double[][] spectra)`	Performs a linear spectral unmixing of a set of spectra.

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

- Constructor Detail
  - FullyConstrainedLSU
```
public FullyConstrainedLSU(double[][] endmembers)
```
- Method Detail
  - unmix
```
public double[][] unmix(double[][] spectra)
```
    Description copied from interface: SpectralUnmixing
    
    Performs a linear spectral unmixing of a set of spectra.
    
    Specified by:
    
    unmix in interface SpectralUnmixing
    
    Parameters:
    
    spectra - the spectra, where number of rows = number of spectral channels number of cols = number of spectra
    
    Returns:
    
    the abundances, where number of rows = number of endmembers number of cols = number of spectra
  - mix
```
public double[][] mix(double[][] abundances)
```
    Description copied from interface: SpectralUnmixing
    
    Calculates the spectra for a set of abundances.
    
    Specified by:
    
    mix in interface SpectralUnmixing
    
    Parameters:
    
    abundances - the abundances, where number of rows = number of endmembers number of cols = number of spectra
    
    Returns:
    
    the resulting spectra, where number of rows = number of spectral channels number of cols = number of spectra