Tuesday, April 5, 2011

JAI-tools version 1.1.1 and Jiffle version 0.1.0 released

The JAI-tools team is pleased to announce the combined release of new versions of JAI-tools and Jiffle. This is the first release since Jiffle moved into a separate project with its own versioning (see previous post).

The new versions are now available from the Maven Central repository and mirror sites.

You can checkout the sources from:

To search for particular changes of interest go to the issue tracker for each project.

Thanks to Andrea Aime and Daniele Romagnoli for their work on this release, and also Ian Turton and Manuel Bossant for contributions and bug spotting.

JAI-tools version 1.1.1

This is a minor release which includes bug fixes and improvements, but also some new features. Notable items:
  • ROIGeometry now has more methods implemented and improved performance.
  • Problems with clipping and setting rendering hints have been fixed in the DiskMemImageGraphics class.
  • KernelFactory has been expanded and can now generate many standard kernel types including cosine, Gaussian, Epanechnikov and quartic.
  • Improvements to the utility Swing widgets.
  • A new CompareOp class for comparison of double and float values taking into account absolute or proportional tolerance.

Jiffle version 0.1.0

This is the first release of the Jiffle scripting language under its own version numbering. The new jars are jt-jiffle-language-0.1.0.jar and jt-jiffle-demo-0.1.0.jar.

The main change from the version that was included with JAI-tools 1.1.0 is support for user-defined coordinates. This separates the bounds and resolution of the processing area from those of the source and destination images. It means that within your Jiffle script, you can work with whatever type of coordinates are best suited to your application, e.g. geographic, proportional, or arbitrary cartesian coordinates. When running a script, CoordinateTransform objects are used to convert between user coordinates and pixel positions in each source and destination image.

The separation of processing and image coordinates can be handy even when you are working directly with pixel positions. You can use it to deal with non-overlapping source and destination images, or as a device to sub-sample or over-sample source images.

As well as the new coordinate support, there have been some small extensions to Jiffle's syntax and a general tidy-up of the code base and javadocs.

Share and enjoy.

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