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Decoding the machinations of the Light L16's raw LRI file

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Still early days. Some things work, some things don't.

I've detailed what I know about the LRI format in LRI.md. Details about a weird format they use called Bayer JPEG described in bayer_jpeg.md.

A friend archived a lot of Light L16 stuff at helloavo/Light-L16-Archive. Notably it contains firmaware images, instructions for upgrading your firmware, root instructions, and a lot more! It was incredibly helpful.

lri-rs

A Rust crate for parsing LRI files. This library isn't perfect, but it works enough to be able to grab image data from the files.

The code here is a mess, but I'm working to improve it. Reading the metadata from the LRI files is weird! It's all in protobuf messages and those protobuf messages make a lot or stuff "optional". We end up with a lot of duplicated data

prism

Breaks an LRI into the individual images it contains
prism <lri> <output_directory>

TODO: I'd like to, one day, be able to write DNG files from prism, but currently it just spits out PNG.

lri-proto

This is a gently modified version of the dllu/lri-rs repository. Without the work from Daniel pulling the protobuf definitions from the Lumen software I truly don't know if I could've got as far as I did.

MIT Copyright Daniel Lawrence Lu

lri-study

Run with the arguments gather <path> to print information about the LRI files in the directory to stdout.

This was very useful to me while developing lri-rs to be able to see if patterns repeated across many different images so I could make some assumptions.

Licensing?

lri-proto is MIT Copyright Daniel Lawrence Lu.

everything else is ISC copyright gennyble gen@nyble.dev.

Just means you have to provide attribution to the correct person if you use this code and that you're free to do with it what you like.

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Decoding the machinations of the Light L16's raw LRI file

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