Re: Image Browser plugin

Posted by Gabriel Landini on Dec 18, 2005; 11:00pm
URL: http://imagej.273.s1.nabble.com/Image-Browser-plugin-tp3704180p3704185.html

On Sunday 18 December 2005 21:31, Jon Harman wrote:
> I gave it a try, but even a small (for me) directory of images takes too
> long to load.  System (win 2000 with 512M memory)  grinds to a halt,
> probably because of memory disk swapping.

I really like the browser idea, although I also found very slow loads in
linux.

I wonder if adding some options would reduce the slow load, for example:
option to avoid doing recursive search of directories,
option to load only the first slice of a stack,
option to create a smaller thumbnail rather than the full size collage.

In one computer it gave me this error when compiled for the first time:

java.lang.NullPointerException
 at Image_Browser$IBImage.<init>(Image_Browser.java:748)
 at Image_Browser$IBImage.<init>(Image_Browser.java:740)
 at Image_Browser.extractIBImage(Image_Browser.java:275)
 at Image_Browser.browse(Image_Browser.java:152)
 at Image_Browser.browse(Image_Browser.java:160)
 at Image_Browser.browse(Image_Browser.java:160)
 at Image_Browser.browse(Image_Browser.java:160)
 at Image_Browser.browse(Image_Browser.java:160)
 at Image_Browser.browse(Image_Browser.java:160)
 at Image_Browser.run(Image_Browser.java:74)
 at ij.IJ.runUserPlugIn(IJ.java:271)
 at ij.ImageJ.runUserPlugIn(ImageJ.java:216)
 at ij.plugin.PlugInExecuter.run(Compiler.java:188)
 at java.lang.Thread.run(Thread.java:595)

and the second time it run but then froze IJ after loading 22 images.
(There was a huge frame with 22 images in it, but otherwise empty).
The system monitor showed near 100% CPU load and near 100% cached memory use.
(I had to kill the java process to end IJ).

I eventually run successfully on a directory with 5 or 6 images, but it was
very slow. Not sure what the problem really is.

Albert Cardona wrote:
> I use it to instantly browse 700MB of several image
> sequences in CDs.

But isn't the plugin loading the whole 700MB of images? Can one really browse
"instantly" the whole contents?
What amount of memory do you assign to IJ?

Cheers,

Gabriel