[Geotiff] Images vs DEMs in GeoTiff

[Nagle, Gail A (US SSA)]

Hello,

 

Is there currently anyway to determine if a given GeoTIFF file contains
pixels or posts?

In other words, is there a tag that states that the file is an image or
a DEM? If not a specific tag, then perhaps a combination of tags?

 

Thank you,

Gail

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