I'm trying to identify crop row automatically (or as automated as possible). So far I can identify lines using supervised classification in QGIS (semiclassificationplugin) or Ecognition, I successfully extract the polygons but I can not turn the polygons into a single continuous line .

What i have: What i have

What i want: what i want

Today I saw this video https://www.youtube.com/watch?v=dwIDbXHS8nY ,in the video, the software identifies the sugar cane and transforms into dots, then in a line connecting all the dots. the way i want it This software does what it's trying to do, my question is: does anyone know how this is done?

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