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Mars Raw Image Processing
Kevin Gill
post May 20 2022, 04:15 PM
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I wanted to let you know of a project that I've been poking at for the past year. In an effort to streamline my own processing of raw MSL/Perseverance/InSight imaging, I created Mars Raw Utils (boring name, I know...). It has utilities for batch downloading images from the raw image websites and ILT/RAD/etc calibration. Calibration includes decompanding/LUT, debayer, flat fielding, blemish repair/inpainting, color correction, and hot pixel correction. I also made utilities for creating dust devil gifs, Photoshop/GIMP-like levels adjustments, cropping, focus merging, inpainting, and determining current mission date/time/sol. Calibration files are included in the installation and easily modified and/or replaced.

This is all done with the acknowledgment that the raw images are compressed and otherwise modified from the full mission data products so calibration is only a 'best effort' process and full PDS-quality output is not expected. The output is formatted with the expectation that you'll want to do additional processing in Gimp, Photoshop, etc.

It's all command-line driven, multi-platform, open source, and written in Rust.

Here's the project homepage on GitHub: https://github.com/kmgill/mars-raw-utils

And an overview/quickstart: https://github.com/kmgill/mars-raw-utils/wiki

I'm implementing new calibration steps as I get to them, though my latest efforts have been on implementing full support for CAHV/OR/E camera models and compositing.
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Kevin Gill
post May 24 2022, 12:46 AM
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Since I posted that, in the master branch I've rolled all the commands into subcommands of a single binary 'mru' (in a manner similar to the 'git' command). This'll let me consolidate a bunch of stuff to remove duplicate code and makes the whole thing a little more consistent. I've updated the MSL, M20, InSight, and Dust Devil example scripts to reflect this change. I've also put in an anaglyph function for red/blue stereo pairs. The composite command autostitches mosaics. Both of these commands require a metadata file containing the CAHVOR camera components (automatically generated when downloading via 'mru msl-fetch ...' and 'mru m20-fetch ...'. Once I've done enough testing, I'll cut a release and upload new installers for Linux (deb, rpm), MacOS (Homebrew), and Windows.

-- Kevin


Test Anaglyph - MSL Sol 3476 Navcam
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Sean
post May 26 2022, 09:06 PM
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Amazing work Kevin!


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