Most picture formats can be converted between each other and same most likely goes for .otf pictures (DeltaVision). The problem mainly is with finding a tool that supports some of the rarely encountered file types, such as the OTF format itself.
We know that softWorx Explorer tool should be able to handle .otf files and export and save them as JPEG pictures. Nevertheless, it is likely that there may be other tools that can achieve the otf to jpeg conversion as well.