I have a digital map of water pipelines (water lines in various colors, parcel data in black). I want to convert the .tiff image's water pipelines (not parcels) to a shapefile. I have the .tiff geo referenced and but cannot seem to figure out how to get it to work in Arcscan.
You have a multi-coloured image, so you need to isolate just two colors from it before you can vectorize it with ArcScan.
ArcScan can vectorize any raster format supported by ArcGIS so long as it is represented as a bi-level image. This requires that you symbolize raster layers with two unique colors. You can use either the ArcMap Unique Values or Classified rendering options to separate the raster into two colors.