This interface describes single-input/single-output
operations performed on Raster objects. It is implemented by such
classes as AffineTransformOp, ConvolveOp, and LookupOp. The Source
and Destination objects must contain the appropriate number
of bands for the particular classes implementing this interface.
Otherwise, an exception is thrown. This interface cannot be used to
describe more sophisticated Ops such as ones that take multiple sources.
Each class implementing this interface will specify whether or not it
will allow an in-place filtering operation (i.e. source object equal
to the destination object). Note that the restriction to single-input
operations means that the values of destination pixels prior to the
operation are not used as input to the filter operation.