I need to do calculations on raster layers which require the sum of all cells of the raster. I've used the zonal statistics tool for that but it gets a little annoying to do those extra steps (run the plugin, open the Attribute table, copy the sum...).
Is there a way I can calculate and use the values of raster statistics directly inside a raster calculator?
Even better would be to calculate those values from a raster created in the same step:
A*B*C / Sum (A*B*C)