Hi Paul,

  Now that you mention it, I was remembering incorrectly.  The MrSID
plugin does ues a command line tool and not JNI.  This has the
advantage of spawning a new process that doesn't affect the Java
process memory.

Larry

On 8/17/07, Paul Austin <[EMAIL PROTECTED]> wrote:
> There is also another option that using a jni interface to an image
> library. You can always execute a command line tool which you use to
> create a temporary file for the resize and crop and then load that.
>
> I switched my photo web site code to do this as I was having memory and
> quality problems with JAI.
>
> Paul
>
> Larry Becker wrote:
> > This whole issue of support for large image sizes is the reason that
> > SkyJUMP doesn't have Image Layers yet.  It seems to open up a can of
> > worms.  If you need jai to process images, IMHO you are already in
> > (memory) trouble.  Also, some formats, such as GeoTIFF are simply to
> > complex to ever get working reliably for all variations.  As with the
> > discussions of vector formats, it all boils down to the fact that
> > there isn't one single good (and open) file format that well
> > supported.
> >
> > I think that perhaps the best way to handle image formats (and perhaps
> > some other issues too) is to bite the bullet and add a JNI interface
> > to gdal.  I can imagine modifying the MrSID plugin (which uses JNI) to
> > do this.  I believe there are versions of gdal for most platforms.
> >
> > regards,
> > Larry
> >
> > On 8/17/07, Rahkonen Jukka <[EMAIL PROTECTED]> wrote:
> >
> >> Hi,
> >>
> >> It really seems to be due to the size. I made small versions (1000 by 1000 
> >> pixels) of the png and jpg images, and they do work.  They also seem to 
> >> accept both .tfw named world files and those named according to image 
> >> format (jgw/pgw).  That's good.
> >>
> >> User should get some informative warning about file exceeding the size 
> >> limits, perhaps with a hint to use tiff of ecw formats instead for bigger 
> >> images.
> >>
> >> By the way, those interested in trying how OpenJUMP performs with ecw can 
> >> download wonderful images to play with from geotorrent.org. For example 
> >> 1.8 gigabyte europe_landsat742 image covering almost whole Europe, despite 
> >> half of Finland :( , works very well and consumes just few tens of 
> >> megabytes of OpenJUMP memory.  Image dimensions totals 141970 by 141970 
> >> pixels.  There are other good images as well, and they are free for any 
> >> use.
> >>
> >> -Jukka-
> >>
> >>
> >>
> >>
> >>
> >>
> >>> -----Alkuperäinen viesti-----
> >>> Lähettäjä: [EMAIL PROTECTED]
> >>> [mailto:[EMAIL PROTECTED]
> >>> Puolesta Stefan Steiniger
> >>> Lähetetty: 17. elokuuta 2007 14:34
> >>> Vastaanottaja: List for discussion of JPP development and use.
> >>> Aihe: Re: [JPP-Devel] OJN 1.2D: Add Image Layer
> >>>
> >>> btw.. if it does not load..
> >>> can it be a image size problem?
> >>>
> >>> because 9996x9996 px is shown by Adobe Photoshop as file with
> >>> 285MB size in memory (stored as jpg: 15MB - of course
> >>> depending on the image packability itself)
> >>>
> >>> If i try to load the file with OpenJUMP (java memory option
> >>> -Xmx256M)..
> >>> then it is not shown as well.. without any error message
> >>>
> >>> don't know how diffcult it is to obtain at least a message
> >>> from jai that the file is to large.
> >>>
> >>>
> >>> stefan
> >>>
> >>> Rahkonen Jukka schrieb:
> >>>
> >>>> Hi,
> >>>>
> >>>> I made a quick test with one 9996 by 9996 pixel colour
> >>>>
> >>> image. The original is band interleaved geotiff. I converted
> >>> it with gdal_translate to following formats:
> >>>
> >>>> - png (gdal_translate -of PNG jumptest.tif jumptest.png)
> >>>> - jpeg (gdal_translate -of jpeg jumptest.tif jumptest.jpg)
> >>>> - ecw (gdal_translate -of ECW -co LARGE_OK=YES jumptest.tif
> >>>>
> >>> jumptest.ecw)
> >>>
> >>>> - pixel interleaved geotiff (gdal_translate -of GTiff -co
> >>>>
> >>> interleave=pixel jumptest.tif jumptest_pixel_int.tif)
> >>>
> >>>> I created also ESRI world file (.tfw) and copied it for
> >>>>
> >>> jpeg and png formats as .jgw and .pgw, respectively.
> >>>
> >>>> Results:
> >>>> - band interleaved tiff does not show
> >>>> - jpeg does not show
> >>>> - png does not show
> >>>> - pixel interleaved tiff shows OK
> >>>> - ecw shows OK
> >>>>
> >>>> Read error with band interleaved tiffs is quite usual, and
> >>>>
> >>> a few weeks ago GDAL default was changed to pixel interleave.
> >>> There must be another reason for problems with jpeg and png.
> >>>
> >>>> Right click - Properties on the failed jpeg and png image
> >>>>
> >>> layer shows this error:
> >>>
> >>>> Javax.media.jai.util.ImagingException: All factories fail
> >>>>
> >>> for the operation "FileLoad"
> >>>
> >>>> Regards,
> >>>>
> >>>> -Jukka-
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>> -----Alkuperäinen viesti-----
> >>>>> Lähettäjä: [EMAIL PROTECTED]
> >>>>> [mailto:[EMAIL PROTECTED]
> >>>>> Puolesta Uwe Dalluege
> >>>>> Lähetetty: 17. elokuuta 2007 11:48
> >>>>> Vastaanottaja: Devel Jump
> >>>>> Aihe: [JPP-Devel] OJN 1.2D: Add Image Layer
> >>>>>
> >>>>> Hi,
> >>>>>
> >>>>> when I load a TIFF file which has a worldfile with Layer>Add
> >>>>> Image Layer a new layer appears but nothing happens (no
> >>>>> errormessage and no image)!
> >>>>>
> >>>>> Running OpenJUMPNight 1.2D with Eclipse I see the error:
> >>>>>
> >>>>> com.vividsolutions.jump.JUMPException: Neither geotiff tags
> >>>>> nor valid worldfile found.
> >>>>> This is not a valid GeoTIFF file.
> >>>>>     at
> >>>>> com.vividsolutions.jump.workbench.imagery.geotiff.GeoTIFFImage
> >>>>> .init(GeoTIFFImage.java:72)
> >>>>>     at
> >>>>> com.vividsolutions.jump.workbench.imagery.geotiff.GeoTIFFImage
> >>>>> .<init>(GeoTIFFImage.java:56)
> >>>>>     at
> >>>>> com.vividsolutions.jump.workbench.imagery.geotiff.GeoTIFFImage
> >>>>> Factory.createImage(GeoTIFFImageFactory.java:53)
> >>>>>     at
> >>>>> com.vividsolutions.jump.workbench.imagery.ImageryLayerDataset.
> >>>>> createImage(ImageryLayerDataset.java:76)
> >>>>>     at
> >>>>> com.vividsolutions.jump.workbench.ui.plugin.imagery.ImageFeatu
> >>>>> reCreator.createFeature(ImageFeatureCreator.java:174)
> >>>>>     at
> >>>>> com.vividsolutions.jump.workbench.ui.plugin.imagery.ImageFeatu
> >>>>> reCreator.access$0(ImageFeatureCreator.java:159)
> >>>>>     at
> >>>>> com.vividsolutions.jump.workbench.ui.plugin.imagery.ImageFeatu
> >>>>> reCreator$1.yield(ImageFeatureCreator.java:153)
> >>>>>     at
> >>>>> com.vividsolutions.jump.util.CollectionUtil.collect(Collection
> >>>>> Util.java:298)
> >>>>>     at
> >>>>> com.vividsolutions.jump.workbench.ui.plugin.imagery.ImageFeatu
> >>>>> reCreator.createFeatures(ImageFeatureCreator.java:148)
> >>>>>     at
> >>>>> com.vividsolutions.jump.workbench.ui.plugin.imagery.ImageFeatu
> >>>>> reCreator.getImages(ImageFeatureCreator.java:79)
> >>>>>     at
> >>>>> com.vividsolutions.jump.workbench.ui.plugin.imagery.AddImageLa
> >>>>> yerPlugIn.execute(AddImageLayerPlugIn.java:34)
> >>>>>     at
> >>>>> com.vividsolutions.jump.workbench.plugin.AbstractPlugIn$1.acti
> >>>>> onPerformed(AbstractPlugIn.java:130)
> >>>>>     at
> >>>>>
> >>> javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
> >>>
> >>>>>     at
> >>>>> javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
> >>>>>     at
> >>>>> javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
> >>>>>     at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
> >>>>>     at javax.swing.AbstractButton.doClick(Unknown Source)
> >>>>>     at
> >>>>>
> >>> javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
> >>>
> >>>>>     at
> >>>>> javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(U
> >>>>> nknown Source)
> >>>>>     at java.awt.Component.processMouseEvent(Unknown Source)
> >>>>>     at javax.swing.JComponent.processMouseEvent(Unknown Source)
> >>>>>     at java.awt.Component.processEvent(Unknown Source)
> >>>>>     at java.awt.Container.processEvent(Unknown Source)
> >>>>>     at java.awt.Component.dispatchEventImpl(Unknown Source)
> >>>>>     at java.awt.Container.dispatchEventImpl(Unknown Source)
> >>>>>     at java.awt.Component.dispatchEvent(Unknown Source)
> >>>>>     at
> >>>>> java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
> >>>>>     at
> >>>>> java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
> >>>>>     at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
> >>>>>     at java.awt.Container.dispatchEventImpl(Unknown Source)
> >>>>>     at java.awt.Window.dispatchEventImpl(Unknown Source)
> >>>>>     at java.awt.Component.dispatchEvent(Unknown Source)
> >>>>>     at java.awt.EventQueue.dispatchEvent(Unknown Source)
> >>>>>     at
> >>>>>
> >>>>>
> >>> java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
> >>>
> >>>>>     at
> >>>>> java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
> >>>>>     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> >>>>>     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> >>>>>     at java.awt.EventDispatchThread.run(Unknown Source)
> >>>>>
> >>>>>
> >>>>> Regards,
> >>>>>
> >>>>> Uwe
> >>>>>
> >>>>>
> >>>>> --------------------------------------------------------------
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> >>> _______________________________________________
> >>>
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> >>>>> Jump-pilot-devel@lists.sourceforge.net
> >>>>> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
> >>>>>
> >>>>>
> >>>>
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