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dataset contains one or more layers called bands. For example, a color image has three bands (red, green, and blue) while a digital elevation model (DEM) has one band
(holding elevation values), and a multispectral image may have many bands.
Each raster band contains the actual cell values, as well as some key properties, such as:
Examples of a 1 band raster are
Examples of 3 band raster are
For information on how to use bands in ArcSDE API, click here.