Glossary for Geospatial Science

class:  (raster)  A set of all image features of the same type.  As part of the interpretive process, the user names a class to identify the type of material it contains, like “corn,” “bare soil,” “wetland,” or “urban.”  In a set of coregistered raster objects, a grouping of cells with similar sets of values.  A class normally corresponds to a specific land cover type with a restricted set of biophysical properties.