It will be a challenge, as radiometric data is going to be around 20x the volume as image data.
(Radiometric 16 bits uncompressed, 'video' jpg 8 bit Y and colour at only 1/4 resolution )
Do you need the whole range of data ? I'm thinking a custom colour lookup table might do the job if all you need is >20, >25, >30, >50 or similar.
Bill