Arithmetic principles of linear regression, exponent modification, and cellular element partition were analyzed. Experiments were designed to evaluate the accuracy and stability of the three algorithms with the purpose looking for optimizing and improving direction of Subarea Neugebauer Equation. The results showed that linear regressed Neugebauer Equation is the worst in; exponent modified Neugebauer Equation is in the middle; cellular element partition Neugebauer Equation is the best in accuracy and stability under the environment of high-fidelity printing.