目的 从网点墨量与实地墨量不同的角度出发，构建基于半色调实地三刺激值的纽介堡方程修正模型，从而提高纽介堡方程的计算精度。方法 以符合G7认证的印刷标准文件为研究对象，从网点墨量与实地墨量不同的角度出发，通过求解半色调实地三刺激值，构建基于半色调实地三刺激值的纽介堡方程修正模型，利用色差法对该修正模型进行精度验证。结果 验证结果表明，修正模型色差精度最大可以提高2.2 NBS，平均色差精度可以提高1.0 NBS。结论 基于半色调实地三刺激值的纽介堡方程修正模型能够有效提高方程精度，研究结果对于印刷分色具有重要意义。

The work aims to construct the Neugebauer equation correction model based on halftone solid tristimulus values according to the fact that the halftone area ink volume is different from the solid area ink volume, thus improving the calculation precision of Neugebauer equation. The standard printing documents conforming to the G7 certification were taken as the research object. Based on the fact that the halftone area ink volume was different from the solid area ink volume, a Neugebauer equation correction model based on halftone solid tristimulus values was constructed through the solution to the halftone solid tristimulus values. The color difference method was adopted to verify the accuracy of the correction model. The verification results showed that the color difference accuracy of correction model could be improved by 2.2 NBS, and the average color difference accuracy could be improved by 1.0 NBS. The Neugebauer equation correction model based on the halftone solid tristimulus values can effectively improve the equation precision. The research results are of great significance for the color separation of printing.