Using the contrast matrix model

the multinomial fitting

the three dimensional look-up-table and the neural network method separately

the color space non-linear correspondence relationship was established

which demonstrated that CRT monitor equipment color space RGB has nothing to do with the equipment

and the color characterization of the equipment was completed. Two common CRT displays were tested

and color difference was analyzed. The precisions of several methods were compared.The test results showed that the bound of chromatic aberration was placed in the middle

the polynomial regression had a low accuracy

the three dimensional look-up-table and the artificial neural network procedures could be used to characterize commonly used color CRT

and the artificial neural network procedures had better accuracy.