The Java Image I/O API, developed through JSR-015, provides a pluggable architecture for working with images stored in files and accessed across the network. It offers substantially more flexibility and power than the previous APIs for loading and saving images.
The API provides a framework for the addition of format-specific plugins. Plug-ins for several common formats are included with Java Image I/O, but third parties can use this API to create their own plugins to handle special formats.
The Java Image I/O API Specification consists of the following packages:
javax.imageio
- the basic classes and interfaces for describing the contents of
image files, including metadata and thumbnails; controlling the
image reading and writing process; performing transcoding between
formats; and reporting errors.javax.imageio.event
- interfaces for dealing with synchronous notification of events
during the reading and writing of images.javax.imageio.metadata
- classes and interfaces for reading and writing image
metadata.javax.imageio.plugins.bmp
- a support class for the built-in BMP reader and writer
plug-ins.javax.imageio.plugins.jpeg
- some support classes for the built-in JPEG reader and writer
plug-ins.javax.imageio.spi
- service-provider interfaces for: readers, writers, transcoders;
and includes a runtime registry.javax.imageio.stream
- classes and interfaces for low-level I/O from files and
streams.The Java Image I/O API Guide describes the API in more detail and demonstrates how to use Java Image I/O to read and write images and write custom plug-ins.
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