How to correct a heightfield?

[MF_Erwan]

I've managed to transform the MRO altimetric files (http://forums.planetside.co.uk/index.php?topic=8694.0) to a .tif file, that can be loaded with a "heightfield load".
The problem is there are some data missing. To identify them they have been defined as having a very low altitude (-3.4028226550889045e+038 meters ).
I know the valid minimum and maximum altitudes.
So to have a good terrain, I would like to replace all the missing data (i.e. al points of the heighfield that have an altitude inferior to the valid minimum) and recalculate them by interpolation.

Erwan

[Oshyan]

Try 3DEM, Wilbur, or Leveller. One of them should have something to take care of this semi-automatically. I know Global Mapper does, but it's rather pricey.

- Oshyan

[MF_Erwan]

Since I needed it to use SRTM data (to solve this problem: http://forums.planetside.co.uk/index.php?topic=8068.msg86167 ), I bought Global Mapper.

Erwan

[Oshyan]

Global Mapper is fantastic software. Good that it was within your budget, because you won't find a more powerful and flexible terrain format conversion and GIS data manipulation app for anywhere near the price. Should make things a lot easier for you. It also exports directly to TER as well as georeferenced GeoTIFF.

- Oshyan