* All of the samples I’ve seen are 8 bits deep, so we assume
* that. Yeah, yeah, that’s nasty and evil, and I’m terribly
* ashamed of it, but I’m not going to bother with bit
* fiddling until I see an image that needs it. I once had
* a 16-bit Galileo image of Venus, but it got lost (sigh).

Source: Direct link to the source code
Software: XV
Programming language: C