Chapter

Computer And Computing Technologies In Agriculture, Volume II

Volume 259 of the series The International Federation for Information Processing pp 1427-1433

Leaf Area Calculating Based on Digital Image

  • Zhichen LiAffiliated withNanjing Agricultural University
  • , Changying JiAffiliated withNanjing Agricultural University
  • , Jicheng LiuAffiliated withNanjing Agricultural University

A new and simple method for plant leaf area measurement using image processing technique was provided. Sixty leaves with different shape and size of six plant species were selected for study. The software using for image processing and leaf area calculation was matlab6.0. Experiments were performed to test the performance of the estimating system by comparing the estimated leaf area with the grid square leaf area. The range of relative errors of estimation were 4.42-7.81%, 3.56-8.01%, 4.12-6.97%, 3.89-7.28%, 4.23- 8.12% and 3.56-7.03% for Eucommia Bark, Paulownia, Maidenhair tree, Bamboo, Cycad, Weed respectively. The results illuminate the more close to rectangle area the more accurate of the estimating leaf area. So it can be concluded that the method developed in this study obtained the sufficient accuracy for the possible non-destructive leaf area measurement.

Keywords

leaf area image processing grid square