Orfeo Toolbox PCA fails - Null Eigen value?

Question

I am using the Orfeo ToolBox to do a PCA on a .tif with 3060 timesteps of temperature values.

The PCA runs either in the Ubuntu CMD line or in QGIS.

In both, I get the same error saying:

Null Eigen value

I already found the lines which are throwing the error in the original Python file but I can't figure out what is exactly going wrong.

Can anyone explain this error to me?

benschbob91 · Answer

I found the answer to my own question:
The Orfeo ToolBox PCA algorithm doesn't allow raster stacks to have layers where all the pixels are filled with 0. When applying the PCA there will be a division by 0. Therefore I deleted all layers containing only 0 value pixels.

Orfeo Toolbox PCA fails - Null Eigen value?

One Answer

Add your own answers!

Ask a Question