[gdal-dev] gdalwarp no data option

[garfy]

Using gdalwarp mosaic, and setting nodata as "0" , I have been able to mosaic
successfully.
But in my case, "0" = no data when out of image extents, and inside extents
it is a valid value.
Can some one explain if the value 0 comes in image extents , how does gdal
handle it ?



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