Help converting .IMG files to .TIF

Question

Hello, I am very green with ArcGIS Pro so I hope this is the correct place to ask. I would like to do some slope analysis on data I have downloaded from the HiRISE website (specifically this: https://www.uahirise.org/ESP_016671_1615). However when I run slope analysis on the JP2 file I download it comes out as a massive blob of colours. I've read that I would need to convert the .IMG file to something arc could read but I have no clue how to do this. Would anybody be able to help me?

Thanks 🙂

First image is what I have downloaded, seccond is... the blob

matteatsbrains · Answer

Ahh right so a bit above the pay grade of an undergrad. Thanks for the help mate! 🙂

BobBooth1 · Answer

It looks as though they have 1,079 DEMs hosted here:

https://www.uahirise.org/dtm/

Tools exist to create DEMs from stereo pairs of images, so if they don't have a DEM for this site (I'll bet they do), if they have stereo image pairs for the site, with additional software and training, you could make a DEM. That would be a much bigger lift than downloading an existing DEM and running a slope analysis.

BobBooth1 · Answer

You can't run a slope analysis on imagery of different color band values (like a photo, or a landsat image). You need a raster that contains elevation values. If that image is a hillshade (it looks like it is), that implies that they have a corresponding DEM, because hillshades, like slopes are a product derived from a DEM.