Dear Developers

I have two multi-band geotiff files (each about 2 GB in size uncompressed) that 
I would like to mosaic using gdal_merge.py.  These files make up two halves of 
a single Landsat footprint so when joined should create a single mosaicked 
image.  I checked the corner coordinates and they seem correct.  However, when 
I use the gdal_merge.py command with the -co “COMPRESS=LZW” option, the final 
file size ends up being a ~100 GB which does not make any sense.  Any ideas 
about what is going on?  I checked the image dimensions and they seem to be 
correct and should result in a file that is about 4.5 GB in size uncompressed 
so the compressed version should be at least this size if not smaller.

Thank you

Mutlu...




_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/gdal-dev

Reply via email to