I have a raster file featuring sidewalks for an entire city. I created this raster from polygons with the intention of using ArcScan to extract a centerline from the raster. I know that the raster has to have exactly 2 values within it. However, I'm having a problem with the vectorization where only one of the values is able to be vectorized at a time, but I cannot control it. Is the raster supposed to be in the form of, say, 0 = no data cells and 1 = sidewalks? If so, how can I change the values to match that? I've tried simply reclassifying the raster to be 0 and 1 (see below), but I get this error:
ERROR 999999: Error executing function. Failed to execute (Reclassify).