Rick,

GIMP 2.8.x is 8-bit not 16-bit capable. To get 16-bit capability you need the new 2.10.x version. That's what I have and it does, in that dialog, have options for bit-depth (including Endian options).

Guy

On 1/30/2019 1:35 PM, Rick Kline wrote:
Hi,

Starting a new thread instead of getting this one lost in the last conversation.

Thanks for the suggestions, Liam and Guy. I was at least able to access the PDS 
(NASA’s Planetary Data System) .img image in GIMP 2.8.20 (!) by changing the 
image file type to .data.

Unfortunately, there’s no bit depth parameter available. How difficult would it be to 
provide that in the “Load Image From Raw Data” GUI? P’shop provides the following in 
their "Photoshop Raw Options" dialog:



If there was even just an option to choose 8-bit or 16-bit image depth, that’d 
be a big help.

Many thanks.

Rick Kline
Data Manager (ret.)
Spacecraft Planetary Imaging Facility, Cornell University

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