# filters.skewnessbalancing¶

Skewness Balancing classifies ground points based on the approach outlined in [Bartels2010].

Default Embedded Stage

This stage is enabled by default

Note

For Skewness Balancing to work well, the scene being processed needs to be quite flat, otherwise many above ground features will begin to be included in the ground surface.

## Example¶

The sample pipeline below uses the Skewness Balancing filter to segment ground and non-ground returns, using default options, and writing only the ground returns to the output file.

[
"input.las",
{
"type":"filters.skewnessbalancing"
},
{
"type":"filters.range",
"limits":"Classification[2:2]"
},
"output.laz"
]


## Options¶

Note

The Skewness Balancing method is touted as being threshold-free. We may still in the future add convenience parameters that are common to other ground segmentation filters, such as returns or ignore to limit the points under consideration for filtering.