I'm trying to do Dark Object Subtraction (DOS) for a Spot2 and 4. I have calculated the TOA reflectance and now want to get the at surface reflectance. Using QGIS
I would like to know how I can do DOS in QGIS, can I build a model or use an equation to do this. I have tried doing 6S however SPOT2 and SPOT4 HRV1/2 is not listed in the Pre-defined satellite bands.