Exercise: Run AMUSES

Data used

We will use the Spectral Library (library.sli) from the testdata. To analyse this library first, use the spectral library tool lib. In this tool, use the Open Library button open and browse to this file.

How many spectra does this library contain?

What are the different classes and subclasses in this library and how many are there?

To help you interpret the different classes, have a look at table 2 in the paper of Jeroen Degerickx (find it in your exercise folder):

Degerickx, Roberts, Somers; 2019; Enhancing the performance of Multiple Endmember Spectral Mixture Analysis (MESMA) for urban land cover mapping using airborne lidar data and band selection; Volume 221; P 260-273

We will also be using the image apex_2015_180_smooth. This is a hyperspectral Apex image from 2015 in ENVI format.

Exercise

Spectral Library:

  • Select library.sli.
  • The reflectance scale factor is automatically detected as 1. This is correct.

Image:

  • Select apex_2015_180_smooth.
  • The reflectance scale factor is automatically detected as 1. This is correct.

Advanced Settings:

  • We will leave all settings as they are.

Output:

  • The default output name is library_amuses.sli.

Click RUN to run AMUSES. The progress should be shown on the log-tab.

../../_images/ex2_amuses_gui.PNG

Result

The final library consists of 71 spectra.

../../_images/ex2_amuses_library.PNG

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