True color enhancements

[Roman SvK]

Hi all ,

What  enhancements use for make True color Goes 16?

Historigram ,  piece-wise .....etc

Thanks

[Raspaud Martin]

Hi,

The default is to use the cira_stretch as indicated here:
https://github.com/pytroll/satpy/blob/main/satpy/etc/enhancements/generic.yaml#L18

Best regards,
Martin

[David Hoese]

To add to this, here is the actual Python code doing the majority of the calculations:

https://github.com/pytroll/satpy/blob/c990b079e7d14c4654bd7270cc37d35141a1e394/satpy/enhancements/__init__.py#L224-L232

There are other ways of stretching/scaling the true color RGB, but as Martin said this is the default in Satpy. If you're familiar with the CSPP Geo Geo2Grid software, a different enhancement is used for true color in that software.

Dave