Extract Poly from classified image

Question

Hi there,

I have an aerial imagery from a crop field.

I classified the image in order to extract crop's plots. (Discriminate plots from soil and shadow). I attach a snapshot of the image to give you an idea of what I mean by plots.

The Iso Cluster classification works really well. Yet I need to have each plot individually, I mean I need to extract these plots as separate polygons. The classification only gives me 3 classes (crop plots, shadow, and soil). Is there anyway that I could extract individual plots from the image?

Thank you so much

Ross_PaulMartin · Answer

You might want to look at feature analyst from Texatron. This is exactly why it was made. Dave Opitz solved this problem about 10 years ago.

DanPatterson_Retired · Answer

Tnanks Darren.  Yes, it at the bottom of the tree in my​ link, but "explicit is better than implicit"

DarrenWiens2 · Answer

Along the lines you (and the rest of this thread) have outlined, this help page goes through the steps to clean up your image. One of my most visited pages, I'm sure.