Solved! Go to Solution.
You select the raster you want to Clip/Mask in the Image Analysis window (IAW), from the list of rasters. You also select a polygon (feature class polygon), and then just hit the Clip or Mask button in the IAW. The layer is temporary by default.
Andrea,
You can use the Mask button on the Image Analysis Window in ArcGIS 10.
Image Analysis window: Processing section
Regards,
Eric
Don has the correct workflow. Use the clip under Data Management > Raster > Raster Processing. If you do not specify the input geometry, you will receive the bounding extents of the polygon. The output format of the raster is controlled by adding extensions. So .jpg for jpeg, .tif for tiff and so forth. The only limit is the raster to be output must have the band combination/bit depth for the desired format.
Extract by Mask will also perform the clip, but Spatial Analyst is required.