Package org.esa.snap.core.util.math
Class ConstrainedLSU
- java.lang.Object
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- org.esa.snap.core.util.math.UnconstrainedLSU
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- org.esa.snap.core.util.math.ConstrainedLSU
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- All Implemented Interfaces:
SpectralUnmixing
public class ConstrainedLSU extends UnconstrainedLSU
Performs a constrained linear spectral unmixing, where the sum of abundances always is equal to unity.- Since:
- 4.1
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Constructor Summary
Constructors Constructor Description ConstrainedLSU(double[][] endmembers)
Constructs a new instance of this class.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double[][]
unmix(double[][] spectra)
Performs a linear spectral unmixing of a set of spectra.-
Methods inherited from class org.esa.snap.core.util.math.UnconstrainedLSU
getEndmembers, mix
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Method Detail
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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 interfaceSpectralUnmixing
- Overrides:
unmix
in classUnconstrainedLSU
- 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
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