Thesis

Browse

Now showing 1 - 1 of 1

Open Access
Design and Development of Software for the Implementation of Image Processing Approach for Leaf Area Measurement
(Punjab Agricultural University, Ludhiana, 2014) Gurjot Kaur; Salam Din
Several commercial softwares are available for plant leaf area measurement. But no freeware is available for leaf area calculation. This study proposes a freeware for calculating the plant leaf area. It is hypothesized that if the error between the calculated leaf area and the actual leaf area is low then it could be used for agronomical research. Leaves of Brassica species, turmeric, soybean and wheat with different size and shape are selected for the study. The platform used for image processing and leaf area calculation is DOTNET framework at the front end and SQL server at the back end. A digital scanner is utilized to obtain leaf images. The user can browse the scanned image of a leaf in any image format and the freeware automatically convert it into web compatible image format. For color tonal distribution the histogram of images is computed. The colored image is converted into monochrome image by setting the threshold value in the color matrix. In image processing method leaf area is calculated through pixel number statistic. The results are compared with the results of Leaf Area Meter by Disha Infoway India Private Limited and concluded that the error rate between them is less than ∓2% for Brassica species, turmeric, soybean and wheat leaves.