摘要： 分析了现有植物叶面面积测量方法的特点，提出了一种利用数码相机快速获得叶片图像，并利用图像处理技术的测量方法。该方法实现了对植物叶面积的非破坏性测量，并能保证测量精度。通过对实验数据的比较分析，验证了该文提出方法的可行性。

关键词: 图像处理；叶面积；阈值；非破坏性测量

Abstract: On analyzing the basic characteristics and shortages of current plant leaf area approaches, this paper puts forward a new approach with rapidity and accuracy by means of digital camera, called image-based process. The measurement can be done without destroying the plant and can be measured accurately. Compared with the values of experiment from others, the results show that this method has better feasibility

Key words: Image processing; Leaf area; Threshold; Non-destroyed measurement