@cfastie made a blog post that intereses me as I need to measure NDVI with micro controllers.
The questions that a need to understand are:
- How to interpret frequency response graphs?
- How did you come up with the computation of the NDVI this code? (code bellow)
tsl1.getLuminosity (&broadband1, &infrareda);
infrared1 = infrareda*1.5;
float vis1 = broadband1-infrareda;
NDVI1 = (infrared1 - vis1) / (infrared1 + vis1);
- I could just use this code but i want to be sure I Know what I am doing, Thanks.