False positives in stubble using multispec

Im having a lot of trouble filtering out false positives using multispec. I’m using dji m3m, does gsd affect the amount of false positives? I only want to detect any green weeds in a stubble situation. I’m wondering if my settings are correct for the mission, e.g. camera settings, which I always have on auto?

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Hi, it would help if you could attach some screenshots to this conversation so we can look at what you are looking at and what false positives actually look like.

At what height did you fly?
What is your GSD?
What vegetation index are you using?