BoneJ uses 0 to mean ‘background’ and ‘255’ to mean ‘foreground’, where foreground usually means bone. ‘Black’ and ‘white’ display colours have no meaning with respect to how BoneJ processes the images. So, is bone 255 or 0? The reviewer says that black should be 0 and white should be 255, but I just don’t understand how that makes sense when my bone is black and the bone is set to min 128 and max 255.