Re: Convolve bug

Posted by Gabriel Landini on Jul 16, 2008; 2:48pm
URL: http://imagej.273.s1.nabble.com/Convolve-bug-tp3695581p3695583.html

On Wednesday 16 July 2008 15:37:01 Johannes Schindelin wrote:
> On Wed, 16 Jul 2008, Francisco Javier Merino Guardiola wrote:
> > I think I've discovered a bug in the convolver plugin:
> > kernel index error: 25
> > Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 25
> >        at ij.plugin.filter.Convolver.convolveFloat(Convolver.java:234)
> >        at ij.plugin.filter.Convolver.convolve(Convolver.java:173)
> >        at ij.process.FloatProcessor.convolve(FloatProcessor.java:819)
> >        at test_convolver.main(test_convolver.java:23)
> > Java Result: 1

> Thank you for including the code.  I tested it here, and it works just
> fine.  My platform is Linux/Athlon (32-bit), java -version says
>
> java version "1.6.0_06"
> Java(TM) SE Runtime Environment (build 1.6.0_06-b02)
> Java HotSpot(TM) Client VM (build 10.0-b22, mixed mode, sharing)
>
> Oh, and I use an ImageJA based on ImageJ 1.41g.

There is a very strange bug -- at least in linux -- possibly in the JIT
compiler that pops up with *multi-core* cpus and gives a similar error.

See line 232 of /ImageJ/source/ij/plugin/filter/Convolver.java for a
workaround.

Cheers,

G.