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</div><div>Hi List,<br><br></div><div>I have an ECW-file which I convert to GeoTiff using gdal_translate.<br></div><div>This GTiff file I use in GeoServer as a base map.<br><br></div><div>This is working great, but because I compress the GTiff with JPEG I get white borders around my area. To solve this I can clip my GTiff with the outer line of my original ECW file.<br>
<br></div><div>My question is how to create such an outer line. I can of course draw it myself using QGis or MapWindow but I'd prefer to let it calculated.<br></div><div>Can GRASS do this? If so which command do I need.<br>
<br></div><div>Thanks,<br><br>Paul<br><br></div>
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