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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> > >> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
> > >>
> > >
> > >
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> > >
> >
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