System — MacOS 10.14.6, QGIS 3.4.14
Issue — When I select a multi-band raster image layer, then select Layer>Save as… KML is not one the many formats in the popup list.
Workaround — Save the Multi-band layer as GeoTIFF. Drag and drop the GeoTIFF onto the Google Earth. Then in GE, Save Place as… to generate a KML or KMZ file.
Is this the best/easiest way to save a multi-band raster image in QGIS to a KML/KMZ format?
I posted this question so that people who search for “QGIS save raster as KML” would get at least one hit that…
a - confirms — that saving a raster layer to KML is not as simple as selecting the layer, selecting Save as and then selecting KML as the format.
b - provides a work around — save the raster layer as a GeoTiff (rendered image), then drag & drop the GeoTiff onto Google earth pro, then Save Place as… KML/KMZ. BTW this drag & drop even works for large GeoTiffs because Google earth pro gives you the option to tile the image or reduce the resolution on import. This work around also allows using an image editor (e.g. Photoshop) to adjust the colors, exposure, contrast, etc. of the GeoTiff prior to importing it into Google earth.
I had hoped that I was wrong and that QGIS had an easy way to save a raster layer in KML/KMZ format that didn’t involve tiling.