Gründächer anhand Infrarot erkennen

solar.greenroof.detect_by_infrared

Eingabe:

features – Feature
grids – Grid
nir – Int
red – Int
green – Int
nir_baseline – Int
threshold – Float
bright_roof_threshold – Int

Ausgabe:

output – Feature

Count for each feature how many pixels from the given grids are above a certain NIR (near infrared) value. Red-Value calculation for NIR R G: NIR * threshold > R + G. First three parameters can be used to specify the number of NIR, Red and Green band (default is 0, 1, 2). nir_baseline will act as minimal expected NIR value to mark a pixel as candidate. threshold can be used to specify comparison sensitifity and be multiplied to the NIR value. bright_roof_threshold can be used to ignore pixels where the sum of red and green value will be higher (in general the case for bright roofs).