Hi,
thank you for your help in advanced.
In ArcMap it is possible to export out a raster based on its currentl styling:
https://pro.arcgis.com/en/pro-app/help/data/imagery/export-or-convert-raster-datasets.htm
Force RGB
Check the Force RGB check box to export the output raster as a three-band RGB raster dataset with the current renderer.
Additionally, while exporting to formats such as TIFF, JP2, PNG, and MRF that support alpha bands, you can use this option to export the data as a four-band raster dataset with an alpha band to preserve the transparency settings of the original data.
Is this possible in FME?
Thank you
Oliver