摘要
采用图像法处理滤纸色斑测量雨滴直径。应用距离变换生成分水岭,以分水岭对滤纸色斑进行分割,获取滤纸上色斑面积,计算色斑等效直径D,率定自然雨滴直径d=1.1-4.1 mm,与色斑直径关系d=0.356 1×D0.723 3。图像法不受色斑毛刺影响,色斑等效直径测量准确,工作效率高。
Mainly introduces a kind of measuring methods for raindrop size. On the basis of the theory ofdistance transformation and image segmentation,the raindrop can be mapped to stain pixel,and itsdiameter is calculated easily. According to the experiments,the relation between the raindrop diameter（d） and the stain diameter（D） is d =0. 356 1× D0.723 3. This image processing method is highly accurate and efficient because it is not affected by splash burr.
出处
《江汉大学学报（自然科学版）》
2015年第2期116-120,共5页
Journal of Jianghan University：Natural Science Edition
基金
武汉市青年晨光计划资助项目(2013071004010470)
关键词
图像处理
雨滴直径
色斑直径
image processing
raindrop diameter
stain diameter
