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I'd like to do a classification using a multispectral raster (1 Blue 475, 2 Green 560, 3 Red 668, 4 Red Edge 717, 5 Near IR 840). I'd like to classify the crops (kiwi plants). enter image description here

I tried a few unsupervised classification with ERDAS like NDVI, DVI, SARVI, TBDVI RDVI. I used RDVI to to do a 90 class classification, then blackened the classes that didn't show the crops. enter image description here

Is there any better way to get the crops classified?

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