std::cout << "User MUST read it, " <<std::endl;
std::cout << " comment out the useless parts " <<std::endl;
std::cout << " invoke it with an ad hoc image(*) " <<std::endl;
std::cout << "User MUST read it, " <<std::endl;
std::cout << " comment out the useless parts " <<std::endl;
std::cout << " invoke it with an ad hoc image(*) " <<std::endl;