set geotiff 0 values to nodata

Question

Is there a way to set all the 0 value pixels on a raster to nodata using gdal or qgis?I world like to use fillnodata to fill some holes, but holes are set to 0,so I need to delete them first

Answer 1

Hi you could try somethign like this with gdal_translate gdal_translate -of GTiff -a_nodata 0 input.tif output.tif

Answer 2

with gdal:

1. gdalbuildvrt -of GTIFF -srcnodata 0 input.tif myVrt.vrt
2. gdal_translate -of GTIFF -scale -a_nodata 0 myVrt.vrt output.tif

beside this you can use raster calculator plugin or grass in qgis too. and arcpy SetNull method.

i hope it helps you...