Hi Chaitanya,
thanks, i'll try that when I get back to it tomorrow.
But: I guess I will have to add -vrtnodata aswell, hopefully it will add
pixels to the mask ?
I have already converted all the source TIFFs to lossless compressed
GeoTiff (which don't
produce undesired JPEG artifacts), and made
Oyvind,
One easy method is to create a vrt file with an alpha band for the original
tiff. You can use this to create a compressed raster file that will be
transparent at nodata pixels.
gdalbuildvrt -addalpha
http://www.gdal.org/gdalbuildvrt.html
On Tue, Apr 3, 2012 at 5:26 PM, Oyvind Idland wro
Hello,
I got one problem: I have a bunch of uncompressed TIFF tiles, which I am
converting to compressed GeoTiff. I would
like to mask away the rgb(0,0,0) values.
However, when I use NODATA on my VRT dataset, there are JPEG artifacts
around the edges when rendering.
Is it possible to generate a
