Hi all, I'm not sure I'm writing to a right address, but I have a rather simple problem, at least a first glance. I'm trying to convert an indexed transparent PNG to transparent GeoTIFF
I've tried many different things (using gdal_translate): - convert indexed PNG to rgba PNG with external tool (Gimp) and then to Geotiff with -expand rgba, -co ALPHA=YES and number of combinations I've found on the internet - convert directly this png to GeoTiff - convert to rgba with pct2rgb.py -rgba image.png image_rgba.tif - convert png to .vrt, edited a color map and no data entry, a tried to convert vrt to rgb - and some other stuff like external apps, imagick, gimp, PS, etc. I cannot get an image with transparent part as in original PNG. I've read that you can use MEM format and convert it in python ( https://lists.osgeo.org/pipermail/gdal-dev/2007-May/013197.html) but didn't try in till now. I was hoping I can do it with GDAL commands. What are my options? Here is my test file: http://s000.tinyupload.com/index.php?file_id=50896113004130896594 Please help :)
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