分别采用阶调矩阵模型、多项式拟合、三维查找表和神经网络方法,建立CRT显示器设备颜色空间RGB与设备无关色空间的非线性对应关系,完成设备颜色显示的特征化。对两个常用的显示器进行了实验,并进行色差分析,比较了几种方法的精确度。 对常用显示器的特征化实验结果表明:阶调矩阵模型色差居中,多项式拟合的方法精度较低,三维查找表和神经网络技术可以满足精度要求,其中神经网络方法最具优势。

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.