Add Classification Tutorial

[vschaffn]

Description

This PR introduces a new tutorial notebook that demonstrates the use of the xdem package for performing DEM classification and subsequent analysis. The tutorial covers various steps from data visualization to calculating metrics. Key functionalities included in this tutorial are:

1. Visualization:

Demonstration of how to visualize the DEM and attribute layers (e.g., slope, roughness) to explore the terrain data.

2. Classification:

A guide on how to perform a basic classification of the DEM based on selected criteria (e.g., elevation, slope, roughness).

3. Mask Creation:

Generating masks from the classification results. These masks are used to filter and isolate specific regions of the DEM based on the classification.

4. Metrics Calculation:

Computation of various statistical metrics such as mean, median, std, nmad, max and min. Metrics are applied to dem, attributes (slope and roughness), masked dem and masked attributes.

[adebardo]

Hello @rhugonnet , (I can't @ emmanuel)

Valentin has completed the classification notebook; it will be very useful for the QI and the internal practical sessions. there’s an example with overlapping areas to demonstrate that it’s feasible as well.

On my end, everything is finished. We’re waiting for your feedback to proceed with the merge.

[rhugonnet]

All good for me!
Once he's back, we should discuss with @adehecq about updating the main branch of this xdem-demo repository with some of the branches, to have all up-to-date tutorials in the same place 🙂 .

[duboise-cnes]

ok for me too. no problem with the save example. I have run it and it is a first good example to use classification.