# Uses of Package
javax.imageio.metadata

- Packages that use javax.imageio.metadata
  Package | Description
  --- | ---
  javax.imageio | The main package of the Java Image I/O API.
  javax.imageio.metadata | A package of the Java Image I/O API dealing with reading and writing metadata.
  javax.imageio.spi | A package of the Java Image I/O API containing the plug-in interfaces for readers, writers, transcoders, and streams, and a runtime registry.

- Classes in javax.imageio.metadata used by javax.imageio
  Class and Description
  IIOMetadata An abstract class to be extended by objects that represent metadata (non-image data) associated with images and streams.

- Classes in javax.imageio.metadata used by javax.imageio.metadata
  Class and Description
  IIOInvalidTreeException An `IIOInvalidTreeException` is thrown when an attempt by an `IIOMetadata` object to parse a tree of `IIOMetadataNode`s fails.
  IIOMetadata An abstract class to be extended by objects that represent metadata (non-image data) associated with images and streams.
  IIOMetadataController An interface to be implemented by objects that can determine the settings of an `IIOMetadata` object, either by putting up a GUI to obtain values from a user, or by other means.
  IIOMetadataFormat An object describing the structure of metadata documents returned from `IIOMetadata.getAsTree` and passed to `IIOMetadata.setFromTree` and `mergeTree`.
  IIOMetadataNode A class representing a node in a meta-data tree, which implements the `org.w3c.dom.Element` interface and additionally allows for the storage of non-textual objects via the `getUserObject` and `setUserObject` methods.

- Classes in javax.imageio.metadata used by javax.imageio.spi
  Class and Description
  IIOMetadataFormat An object describing the structure of metadata documents returned from `IIOMetadata.getAsTree` and passed to `IIOMetadata.setFromTree` and `mergeTree`.

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