I have two Geotiffs (one satellite image, one clipped image). I want to put the clipped image over the satellite image, because it shows flow velocity from this shown glacier (see image below). I tried qgis, Saga and Matlab with no problems to load and visualize that on screen. But I'm not able to export this overlay to a new geotiff. I've tried Raster Merge in qgis with layer stacking, but I can't visualize like same before. I need geotiff to put more information on it.
Does anyone have an idea for how can I resolve that?