After what seemed a struggle colour decoding is now working. Turns out the Lodestar-C sensor is CYGM (rather than RGGB or that ilk). Oh and also it isn't read out by the SX electronics like the Sony datasheet suggests. Got there in the end though.

The main app now 'understands' OSC but displays it in properly converted luminance. The next task is to add R, G and B processing to the pipeline and allow the UI to separately tweak levels in R, G and B. When that is complete the Lodestar-C will display in full glorious colour.

Hmm.. after all that effort I might get a Lodestar-C myself for the bright colourful stuff (and use the mono on the dim stuff requiring filters). Maybe..

Oh, I also fixed the interlaced readout issue (for very short exposures) - nice and smooth images now! Hurruh!