The images below represent some test results comparing 3 Canon Cameras, all of which have had their internal IR filters removed and added a Rosco #2007 filter. The intent is to find the “Best” solution for UAV aerial vegetation mapping with the intent of generating NDVI from a single Canon point and shoot camera. The Cameras in this test are an A490, A810, and SX230. Each camera had custom white balance set in indirect natural light using a stack of white copy paper. Additionally, I tested several pure white and grey scale paint samples but the difference in the results was negligible (at least from my visual interpretation of NDVI).
I’m still working on interpreting and assessing the results. Any input is greatly appreciated.
FIJI/ ImageJ Photo Monitoring Plugin Settings
LUT used NDVIBlu2Mag
Canon A490 with ROSCO #2007 filter, WB set to white copy paper in outdoor indirect sunlight
Canon a810 with ROSCO #2007 filter, WB set to white copy paper in outdoor indirect sunlight
Canon SX230 with ROSCO #2007 filter, WB set to white copy paper in outdoor indirect sunlight
Here are a couple sample aerial shots from the SX230 (unfortunately in low light so the focusing was not very good)