Summary

We began this chapter by looking at the PlanarImage class and two of its subclasses: the RenderedOp and the TiledImage. You saw that the PlanarImage is the main JAI class for working with images. It contains a reference to all of its source images, which allows it to be part of Directed Acyclic Graph (DAG). These DAGS allow changes to a particular image to work their way down to the final rendered image. They also allow the JAI to operate in the pull imaging mode, where rendering requests make their way up the DAG.

We described how the TiledImage class was used primarily for situations in which you need to work with a WritableRaster and how the RenderedOp class was used primarily for processing a source image given an operation name. The majority of this chapter was then spent listing and describing the different operators. Finally we looked at some advanced features such as the renderable layer, remote imaging, and writing your own image operators.