Measurement of Overlapping Leaf Area of Ice Plants Using Digital Image Processing Technique

Abstract

Non-destructive and destructive leaf area estimation are critical in plant physiological and ecological experiments. In modern agriculture, ubiquitous digital cameras and scanners are primarily replacing traditional leaf area measurements. Thus, measuring the leaflet’s dimension is integral in analysing plant photosynthesis and growth. Leaf dimension assessment with image processing is widely used nowadays. In this investigation, we employed an image segmentation algorithm to classify ice plant (Mesembryanthemum crystallinum L.) canopy images with a threshold segmentation technique by a grey colour model and by calculating the degree of green colour in the HSV (hue, saturation, value) model. Notably, the segmentation technique is used to separate suitable surfaces from a defective noisy background. In this work, the canopy area was measured by pixel number statistics relevant to the known reference area. Furthermore, we proposed total leaf area estimation by a destructive method with a computer coordinating area curvimeter, and lastly, we evaluated the overlapping percentage using the total leaf area and canopy area measurements. To assess the overlapping percentage using the proposed algorithm, the curvimeter method experiment was performed on 24 images of ice plants. The obtained results reveal that the overlapping percentage is less than 10%, as evidenced by a difference in the curvimeter and the proposed algorithm’s results with the canopy leaf area approach. Furthermore, the results show a strong correlation between the canopy and total leaf area (R2: 0.99) calculated by our proposed method. This overlapping leaf area finding offers a significant contribution to crop evolution by using computational techniques to make monitoring easier.

The Impact of Food Waste Compost, Vermicompost, and Chemical Fertilizers on the Growth Measurement of Red Radish (Raphanus sativus): A Sustainability Perspective in the United Arab Emirates

“…LSA was measured by the grid count method, which uses the leaf’s dimensions (width and length). The measurement unit was in cm 2 [ 37 , 38 ].…”

The Effect of Recycled Spent Coffee Grounds Fertilizer, Vermicompost, and Chemical Fertilizers on the Growth and Soil Quality of Red Radish (Raphanus sativus) in the United Arab Emirates: A Sustainability Perspective

“…The grid count approach, which takes the dimensions of the leaf (the width and length) into account, was used to measure LSA. Cm 2 was the unit of measurement [29].…”

Identifikasi Nilai Konstanta Daun Tanaman Rambutan dan Jambu Air Berbasis Pengolahan Citra Digital

“…Citra daun tanaman rambutan dan jambu air setelah diambil menggunakan Kamera Canon Mirrorless M3 selanjutnya dipindah ke laptop untuk dilakukan pengolahan citra digital. Pada Gambar 3 dapat dilihat tahapan pengolahan citra digital untuk menghitung luas daun menggunakan software ImageJ dengan prinsip perhitungan jumlah pixel (Irwan & Wicaksono, 2017;Madhavi et al, 2022;Umam et al, 2023;Zhang, 2020). Objek citra daun dalam satuan pixel diubah dan diolah dengan software ImageJ menjadi satuan luas berdasarkan objek tuntun yang telah diatur skalanya dari satuan pixel ke satuan cm.…”