Raster export not the right resolution

Question

Hello,

I use arcmap desktop 10.2.2. In the workflow i use atm i make a geotiff use the export map option in arcmap.  I need 4000dpi and i use geotiff tags and compression (LZW).

The resolutions of my geotiff is. See png

I use the geotiff as raster for a 3D simulation. The software i use for this needs a specific resolution. They need to by in the power of 2.  So the rows and columns need to by 4096, 8192, 16384, 32768, 65536, 131072 etc.

As far as i know i cannot set this in arcmap. So i use qgis for this see png.

Only problem i have there that qgis is not that good with compression. My 120k kb geotiff is a 4194k geotiff after its the right size. This size is not good for the performance.

Is there a tool in arcmap where i can set the resolution? Or can anybody think off a workaround

thank you and greetings Peter

larryzhang · Answer

peter,

To reduce the size of 'exported' TIFF (avoiding big TIFF), the simple way is to set the smaller cell size (saying, 0.5 m from 0.15 m) before beginning.

However, from your projection/ datum, it looks that the image uses WGS 84/ geodetic. Maybe, it is easy way to convert it into projected image, saying, UTM / WGS84...

PeterVersteeg · Answer

i have it allready i was looking at the file size and not the uncompressed size. uncompressed size was 6GB so its is a Bigtiff.

PeterVersteeg · Answer

Yes i did try that but the problem there is that arcmap is making a bigtif from my tiff even if its under 4gb. the software i need the tiff for will not work with a bigtiff.

Do you know how i can make a tif and not a bigtif?