Value of parameter “op” indicates a type of operation used for image processing. By default value op=rgb.
Parameter “op” can have the following values:
op = rgb (RGB)
op = ndi (Normalized Difference Index)
op = evi (Enhanced Vegetation Index)
With these values any combination of available bands is possible.
Attention! Each operation accepts a definite number of bands. If an irrelevant number of bands is denoted, then an error message will be shown.
Presets with installed order and set of bands:
op = truecolor (a composite image that seems to look natural)
op = falsecolor (is a view using NIR band)
op = ndvi (Normalized Difference Vegetation Index)
Attention! If incompatible values of some parameters are specified (for example, in
case of putting “select”), then an error message will be shown.