sirtaknt

Some phones had near-IR camera (Pixel 4, Samsung S10) accessible via API. No "killer app" was found since then, 5+ years

I don't understand how from 3 independent values per pixel (RGB) they claim to derive 200+ independent values per pixel. Unless they are assuming a smooth "image" (all pixels the same RGB), perturbed only by the color card? Not exactly a camera then