> The choice of JPEG 2000 is unexpected. What format would you have expected? > Maybe the advantage is that you can have more than 8 bits of color depth. Yes

> The choice of JPEG 2000 is unexpected. What format would you have expected? > Maybe the advantage is that you can have more than 8 bits of color depth. Yes, that and the (at the time) near state of the art compression efficiency. I remember reading a technical document where the engineers designing the standard argued for 12 bits per component based on experiments and studies they conducted.