为了更好地测量船舶夜航光环境，从而为评价船舶夜航光环境、减小对船舶夜航安全的影响奠定基础，提出了一种利用彩色CCD相机测量海上光环境亮度的方法：以相机成像原理为基础推导亮度与相机参数的关系式，设计色度标定实验拟合出数字图像三刺激值与标准RGB 的关系式，亮度标定实验拟合出关系式中的未知参数，然后确定亮度测量公式。选取大连新港油轮码头水域对测量公式进行实例验证，结果表明该方法测量船舶夜航光环境亮度是可行的，并且具有较高精度。

In order to measure the light environment of the ships navigation at night better, so as to lay the foundation for the evaluation of the light environment of the ships navigation at night and reduce the impact on the safety of the ship's navigation at night, a method of measuring the brightness of the sea light environment by a color CCD camera was proposed. Based on the principle of imaging, the relationship between brightness and camera parameters was deduced and the chromaticity calibration experiment was used to fit the relationship between the three-stimulus value and the standard RGB. The brightness calibration experiment fits out the unknown parameters in the formula and then the brightness measurement formula was determined. The port of Dalian Newport cruise terminal was chosen to verify the measurement formula. The results show that the method can measure the brightness of the light environment of the ships navigation at night, which has high precision.