New BorderExtender and Number handling classes

Two new BorderExtender classes have been added to jai-tools 1.1-SNAPSHOT:

RandomBorderExtender generates an image border with uniform random pixel values sampled from a user-specified range.

SamplingBorderExtender generates pixel values by randomly sampling the source image within a threshold distance of each border pixel.

You'll find these classes in the utils module, jaitools.imageutils package and you can use them in any JAI operation that accepts a BorderExtender in the RenderingHints. They're brand new so I'd welcome your comments, suggestions, bug reports etc.

Also in that module is the jaitools.numeric.NumberOperations class. This used by the new BorderExtenders but is also available for general use. It provides a number of static helper methods for working with Number objects without having to type-narrow them. For instance:

// Add two Number objects. The return value will be an instance of the
// highest ranking class of the two arguments (e.g. Byte + Integer will
// give an Integer result)
Number n1 = ...
Number n2 = ...
Number sum = NumberOperations.add(n1, n2);

You can checkout the source code for jai-tools 1.1-SNAPSHOT with your favourite subversion client from http://jai-tools.googlecode.com/svn/trunk/

See the jai-tools project site for details on how to use the 1.1-SNAPSHOT jars in your project, either using Maven or manual download.

Version 1.0.0 released

The jai-tools project is pleased to announce the release of version 1.0.0 for your Java programming pleasure.

--- General modules ---
utils	Support classes including DiskMemTileCache and DiskMemImage
jiffle	The jiffle image scripting language
kernel	Factory and utility classes to work with KernelJAI objects
demo	A selection of example programs
--- Image operators ---
kernelstats	Calculates neighbourhood statistics
maskedconvolve	Extends the standard JAI convolve operator with source and destination masking
rangelookup	An image lookup operator that can handle both integral and floating point data types and work with value ranges
regionalize	Identifies regions of (sufficiently) uniform value in a source image
zonalstats	Calculates statistics for values in a source image, optionally grouped by zones in a control image

You can checkout the sources with your favourite subversion client from:
http://jai-tools.googlecode.com/svn/tags/1.0.0

If you use Maven as your build tool you can download the jai-tools binary, source and javadoc jars from the central Maven repository.

If you prefer to add the jars to your project manually they can be downloaded from:
http://repo1.maven.org/maven2/com/googlecode/jaitools/