介绍了目前设备特征化过程中色彩空间转换的主要方法，以从RGB色空间到Lab色空间的转换为例，讨论了三棱柱插值和多项式回归这2种算法，并通过实验检验了2种算法的效果，对实验数据进行了对比分析。结果表明，这2种算法在色彩管理领域的应用均有继续改进的空间。

Main color space conversion methods in equipment characterization process were introduced. Two kinds of algorithms, prism interpolation and polynomial regression algorithm were discussed with example of color space conversion from RGB to Lab color space. The effects of the two algorithms were verified with experiments and results were analyzed. The results showed that the two algorithms can be further improved for application in color management field.