This is what I want to do...
Data: -raster images with 4 bands (green,red,red-edge and NIR),there are like 30 folders with one zone per folder and the images where taken 3 periods of time. -List of chlorophyll indices that I need to obtain.
Procedure: 1. I have to merge the images because the UAV separate them. 2. Calculate the chlorophyll indices with raster calculator. 3. another step (pending). 4. another step (pending).
How you guys see,there are multiple procedures that are repeated so I need to automatize them, my first option is use the model tool of QGIS but I can't find the way to calculate the chlorophyll indices with this model.