Re: PCA plugin

Posted by Nathaniel Ryckman on May 31, 2011; 8:29pm
URL: http://imagej.273.s1.nabble.com/PCA-plugin-tp3684411p3684413.html

Yeah, you probably guessed the cause of the problem.

The documentation says, "By default, ImageJ is configured to use around 256 MB maximum".

Here is the documentation explaining how to increase your memory:

http://imagejdocu.tudor.lu/doku.php?id=faq:technical:how_do_i_increase_the_memory_in_imagej

mungallj wrote

Dear All.  I have been trying to run the PCA plugin without success.  I have got to the point where it seems to be running but I get the following error messages:

java.lang.OutOfMemoryError: Java heap space
        at bijnum.BIJutil.getFloatPixels(BIJutil.java:251)
        at bijnum.BIJutil.matrixFromImageStack(BIJutil.java:115)
        at bijnum.BIJutil.matrixFromImageStack(BIJutil.java:94)
        at PCA_.run(PCA_.java:46)
        at ij.plugin.filter.PlugInFilterRunner.processOneImage(PlugInFilterRunner.java:249)
        at ij.plugin.filter.PlugInFilterRunner.<init>(PlugInFilterRunner.java:102)
        at ij.IJ.runUserPlugIn(IJ.java:185)
        at ij.ImageJ.runUserPlugIn(ImageJ.java:264)
        at ij.plugin.PlugInExecuter.run(Compiler.java:264)
        at java.lang.Thread.run(Unknown Source)

The stack I am working on comprises Landsat data, each slice being about 170 Mb in size - perhaps the files are too large?

any pointers would be most welcome!