目的 提高彩色QR码的喷印识别率。方法 选取嵌入信息量、纠错等级、颜色转换、码眼转换等4个QR码生成参数，在不同打印尺寸和打印分辨率的喷印条件下进行实验，计算彩色QR码的喷印识别率，并提出优化方案。结果 研究了各种参数影响彩色QR码喷印识别率的大小，打印尺寸、嵌入信息量、打印分辨率、纠错等级、颜色转换、码眼转换等6种参数对喷印识别率的影响依次递减。结论 通过选择合适的参数优化方案，可提高彩色QR码的喷印识别率。

The work aims to improve the jet printing recognition rate of color QR code. The four QR code generation parameters, such as embedded information volume, error correction level, color conversion and code eye conversion were selected for the experiment under the jet printing conditions with different print sizes and print resolutions. The jet printing recognition rate of color QR code was calculated and the optimization plan was proposed. Varieties of parameters affecting the jet printing recognition rate of color QR code were studied. The influences of the six parameters, including print size, embedded information volume, print resolution, error correction level, color conversion and code eye conversion, on the jet printing recognition rate were successively decreasing. By selecting the appropriate parameter optimization scheme, the jet printing recognition rate of color QR code can be improved.