I have vectorized the Corine Land class raster and want to select certain classes that are "inside" other classes.
How can I select the polygons circled in blue?
All the select by location options do no work since there are no overlaps.
Explanations per the comments: What you see is the area around Barcelona, Spain. the red outlines urban polygons, consisting of several types of CLC classes that have been polygonized from the original Corine raster. The green polygons are "green" areas in and around the city. CLC, as a raster dataset, has only one class for every 100*100 meter pixel through the whole of Europe. What I'm trying to do is select "green" polygons that are completely surrounded by "urban" polygons, and then export them as a separate layer.