基于Android手机的植物叶片面积快速无损测量系统

基于Android手机平台构建了一种植物叶片面积快速无损测量系统。获取包含被测植物叶片与已知面积的参照物图像,经图像灰度化、图像平滑、图像二值化、图像几何校正和连通区域标记等处理,根据参照物和被测植物叶片面积比得到植物叶片的面积。基于Android编程技术对系统的功能和界面进行了设计,对图像的几何失真问题提出了几何校正方法。以三叶草、木槿、腊梅、枫树、银杏、樱花等多种植物叶片为对象进行面积测量。试验结果表明,系统不受叶片形状的限制,面积测量的相对误差在-2.9%~2.7%,能够有效测量植物叶片面积。

Rapid and Non-destructive Measurement System for Plant Leaf Area Based on Android Mobile Phone

Based on Android mobile phone platform, a rapid and non-destructive method for measuring area of plant leaves was developed. After snapping the images which contained reference object with known area and plant leaf whose area would be measured, through image graying, smoothing, binarizing, geometric correcting and connected components labeling, the area of plant leaf could be obtained according to the values of pixels of reference object and plant leaf. Functionality and interface of the system were designed with programming techniques based on Android. Geometric correction method was provided for image tilt distortion problem. Many leaves of several plants, such as clover, hibiscus, wintersweet, maple, ginkgo and sakura were used as the object for experiment. Results showed that the system can effectively measure plant leaf area and is not restricted by leaf shape; the relative error of measured area is range from -2.9% to 2.7%.