Want to help

[Rafael Espíndola]

> Sure. I take it.

Some documentation to start with:

The topmost 2x2 pixel grid (1 bayer filter "cell") is available from
the metadata.

The first two pixels in a row X are computed from the first two pixels
on row X -2 by adding a delta.
Each of the following Y pixels on the row are computed from pixel Y -
2 by adding a delta.

The decoding uses one or two of the attached huffman tables. The
result present on the leafs is not actually the result that should be
output. It is just a recipe on how to interpret the following bits.