[Qgis-developer] GDAL Raster Merge

2011-08-26 Thread uk52rob
I have used the QGIS 1.7.0 / GDAL 1.7.3 raster merge tool to join a number of Os OpenData GeoTiff maps. There are two issues with this: 1. The file size of the merged GeoTiff is over 10x the size of the combined originals; 2. The merged map is in greyscale only, and needs to

Re: [Qgis-developer] GDAL Raster Merge

2011-08-26 Thread Alexander Bruy
Hi 2011/8/26 uk52rob uk52...@yahoo.co.uk: 1.   The file size of the merged GeoTiff is over 10x the size of the combined originals; Try to enable compression adding creation options to your command. More info you can find in GeoTiff format page [0] 2.   The merged map is in greyscale