A method of generating a personalized parameter value for generating a medical image includes acquiring a first medical image of an object, which is imaged according to a predetermined parameter value set in a medical imaging apparatus, and a second medical image changed from the first medical image, determining a first standard parameter value corresponding to the first medical image and a second standard parameter value corresponding to the second medical image, and generating a personalized parameter value corresponding to the object on the basis of the first standard parameter value and the second standard parameter value.