We got two images now from one starting dataset - the scaled area and the raised perimeter. The highest ratio is 0.785 for a single pixel. The blue color indicates a high grade of thinness whereas the tiny green spots show the opposite - compactness. The results strongly depend on scale and resolution. In a later part of the tutorial we will overlay the vegetation with the thinness ratio image to find out possible coincidences.
Higher values indicate more compact areas.