Leaf Area Measurement Based on Image Processing
An efficient measuring method for live plant leaf area was proposed based on image processing technique. Image geometric distortions were corrected firstly using mapping function. For this, Hough transformation was exploited to acquire the coordinates of quadrangle corner points in distorted image. Then, image segmentation was performed using threshold method. To eliminate the influence of holes in the leaf, a new contour extraction approach was presented. Pixel scanning from one side to opposite side was implemented in four directions to extract object contour. Next, contour region was filled. Finally, leaf area was measured by pixel number statistic. Moreover,other important parameter, leaf perimeter, can also be obtained using our method. The proposed method was tested with some live leaf images. Experimental results show our method can measure the plant leaf area accurately.
live plant leaf area measurement image processing Hough transformation contour extrction region filling
Chaohui Lü Hui Ren Yibin Zhang Yinhua Shen
School of Information Engineering Communication University of China Beijing, China
国际会议
长沙
英文
1705-1707
2010-03-13（万方平台首次上网日期，不代表论文的发表时间）