As a side note, the tempView_Hide.png<http://forum.osgearth.org/file/n7581916/tempView_Hide.png>is not recognized format by Photoshop 6. And from what I've seen, tempView_Hide.png<http://forum.osgearth.org/file/n7581916/tempView_Hide.png>has two channels : Gray and Alpha, wheras tempView.png <http://forum.osgearth.org/file/n7581916/tempView_Hide.png>has only alpha.
>From what I read, tif files have weird standards when it comes to transparency. -- Alexandre Vaillancourt 2013/8/2 Robert Osfield <[email protected]> > Hi Mohammed, > > I see the problem with the tempView_Hide.png, when running the OSG > with OSG_NOTIFY_LEVEL set to DEBUG the ong plugin outputs the message: > > width=300 height=298 depth=8 > color == PNG_COLOR_TYPE_GRAY > > I checked the plugin and it does have code hadnling > PNG_COLOR_TYPE_GRAY so I would have expected it to be a supported > type. I'm not the author of the plugin so really just in the same > position as you as to how to go about debugging it further. It could > be a bug in libpng, or it could be a bug in the OSG's handling of this > specific variant of the png format. > > The best I can recommend is working through the png plugin to see how > it's converting the data to see it's making an error somewhere. > Robert. > > > On 11 July 2013 19:07, Mohammed Djeralfia <[email protected]> wrote: > > I have a tiff image that I create from it an thumbnail with > gdal_translate: > > "gdal_translate.exe -outsize 300 400 -of PNG -ot byte -scale image.tif > thumbnail.png" > > > > than I load it on the earth(osgEarth) and it look correct: > > [Image: http://forum.osgearth.org/file/n7581916/goodImage.png ] > > > > But when I remove the no_data from the image (png): > > "gdal_translate.exe --a_nodata 0 -of PNG -ot byte thumbnail.png > thumbnail_no_data.png" > > > > it look correct in the Windows viewer, but when I load it, I have a > strange result: > > [Image: http://forum.osgearth.org/file/n7581916/badImage.png ] > > > > I tested my image with:osgviewer --image file.png and it look wrong. > > > > I had attached my two images: > > [Image: http://forum.osgearth.org/file/n7581916/tempView.png ] > > [Image: http://forum.osgearth.org/file/n7581916/tempView_Hide.png ] > > > > So what can be the probleme?THANKS. > > > > ------------------ > > Read this topic online here: > > http://forum.openscenegraph.org/viewtopic.php?p=55199#55199 > > > > > > > > > > Attachments: > > http://forum.openscenegraph.org//files/tempview_hide_881.png > > http://forum.openscenegraph.org//files/tempview_105.png > > > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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