Spectral Library not compatible with unmixing application

[Florian Beyer]

According to your unmixing tutorial (link) one need the following files for spec lib:

*.sli, *.hdr, *.csv, *.json

‌

I get, however, the following files, when I save a spec lib with enmap box:

*.sli, *.hdr, *.csv, *.sli.aux.xml

‌

So, I guess I have to create the json-file by myself?

‌

[Florian Beyer]

I added a json according to your json file in your tutorial files:

In my case like this:

{"class": 
  {"categories": 
    [[0, "bb", [0, 0, 0]],
     [1, "ag", [230, 0, 0]],
     [2, "fo", [56, 168, 0]],
     [3, "wa", [168, 112, 0]],
     [4, "mm", [0, 50, 156]]
    ],
  "no data value": 0,
  "description": "Classification"
  }
}

I don’t know why I actually have to add this line [0, "bb", [0, 0, 0]],

but otherwise one class is missing in the in the synthMix window.

‌

This has to be fixed!

[Florian Beyer]

Afterwards I’ve got new errors.

I tried to adapt my library according to all the properties of the tutorial library.

I did a lot of changes. Now, the library is not readable anymore in the enmapbox

It’s so frustrating!

‌

‌

[Florian Beyer]

Today, with a fresh start, it worked.

• 4 classes with around 270 spectra each

• separately loaded from point shapes using Import profiles from raster + vector source

  in one big spectral library

following adaptions are necessary after saving the spectral library:

1. delete the *.xml
2. generate a *.json file (with the structure I already posted)

3. I had spectra with the same names in the speclib and, therefore, I had to change the names in the *.csv and the *.hdr (in text editor)

   1. I just renumbered the column spectra name in the csv.
   2. AND replaced the band names with the same numbers in the *.hdr

‌

[Florian Beyer]

I wonder if this plattform is actually used…

[Benjamin Jakimow]

The `*.sli.aux.xml` is created by GDAL / QGIS automatically and contains additional metadata.
Actually I am not sure if the proposed *.json approach was a good choice.

‌

[Benjamin Jakimow]

pulled qps updates, which: - closes issue #330 (Spectral Library did not load JSON class information)

Signed-off-by: Benjamin Jakimow [e-mail] [e-mail]

→ <<cset d0bfb025333b>>

[Benjamin Jakimow]

pulled qps updates, which: - closes issue #330 (Spectral Library did not load JSON class information)

Signed-off-by: Benjamin Jakimow [e-mail] [e-mail]

→ <<cset d0bfb025333b>>