Geographic informations encoded in images as metadata.

This package defines a {@link org.geotools.image.io.metadata.GeographicMetadataFormat geographic metadata format} which is aimed as image format neutral. The metadata format defines a structure for a tree of nodes in a way similar to the way methods are defined in GeoAPI interfaces. For example it defines a {@code "CoordinateReferenceSystem"} node with {@code "CoordinateSystem"} and {@code "Datum"} child nodes.

The {@link org.geotools.image.io.metadata.GeographicMetadata} class contains convenience methods for encoding metatadata. Metadata are usually given as {@link java.lang.String} or {@code double} attributes only, but image readers can optionaly attach fully constructed GeoAPI objects if they wish. If only {@link java.lang.String} and {@code double} are used, then the duty to create GeoAPI objects from them incomb to the {@link org.geotools.coverage.io} package.