void CameraDisplay::onImagePositionEnumOptions(V_string& choices)
{
  choices.clear();
  choices.push_back(IMAGE_POS_BACKGROUND);
  choices.push_back(IMAGE_POS_OVERLAY);
  choices.push_back(IMAGE_POS_BOTH);
}
void removeROSArgs(int argc, const char* const* argv, V_string& args_out)
{
  for (int i = 0; i < argc; ++i)
  {
    std::string arg = argv[i];
    size_t pos = arg.find(":=");
    if (pos == std::string::npos)
    {
      args_out.push_back(arg);
    }
  }
}