摘要
根据低成本、高精度、方便快捷测量作物叶面积的实际需要,利用常见的计算机和扫描仪设备,通过选择不同的扫描模式,采用有底板与无底板、有压膜与无压膜以及不同叶状样本的测量方法比较得出,各种处理测量误差都很小,但以无底板、无压膜的300dpi灰阶法最佳,测量误差仅为0.4‰,并基于计算机图像处理技术研制了相应的扫描仪测量作物叶面积软件,实现了作物叶面积测量、参数选择、图像和数据显示存储调用、数据统计、叶面积指数计算等功能。
Considering the needs of low-cost,high precision,and convenient in measuring crop leaf area,using a computer and a scanner,choosing different scan modes,by means of the measurement methods of with and without Baseplate,with and without PET FILM,and different shaped samples,it is concluded that the measurement methods of without baseplate and without PET FILM 300 dpi gray scale are better than others,with the measurement error is 0.4‰.Based on computer image processing technology,the software of measuring crop leaf area is developed by scanner,which achieves such functions as parameter selection,displaying,storing and invoking image and data,data processing,leaf area index calculation and so on.
出处
《气象科技》
北大核心
2016年第4期675-679,共5页
Meteorological Science and Technology
关键词
扫描仪
叶面积
测量方法
软件系统
scanner
leaf area
measuring methods
software system
