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I'm trying to merge a couple of GeoTiff maps using Raster > Miscellaneous > Merge but the merge is only coming out in grayscale. The geotifs are using palettes color. How do I get the merge to keep the color information?

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You have to expand the GeoTiffs to RGBA. Each of your GeoTiffs has a different palette, and GDAL (working in the background of QGIS) can not merge and repalette in one step.

Try Raster -> Convert -> PCT to RGB or gdal_translate -expand RGBA.

  • Thanks, I thought I had tried this last night and it didn't work. I was mistaken in my frustration. Thanks for the help. – Nate Graham Mar 4 '14 at 3:42

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