Leaf severity calculator

Authors

  • Emiliano David Universidad Nacional del Centro de la Provincia de Buenos Aires, Argentina
  • Luisa Cabezas Unidad Central del Valle del Cauca, Colombia https://orcid.org/0000-0002-5593-4439
  • Bruno Lara Universidad Nacional del Centro de la Provincia de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina https://orcid.org/0000-0002-5267-1522
  • Liliana Monterroso Universidad Nacional del Centro de la Provincia de Buenos Aires, Argentina
  • Alberto Lencina Universidad Nacional del Centro de la Provincia de Buenos Aires, Argentina https://orcid.org/0000-0002-4834-7543

Keywords:

android app, barley, severity

Abstract

An application for Android devices which calculates the disease Severity of a sample of barley leaves affected by net blotch and/or spot blotch is presented. The sample leaves must be placed on a white background. The application allows users to take a photo of the sample or use an image stored in the device's gallery. Image processing segments the background of the leaves and, in turn, segments the portion of healthy leaves from the diseased ones. The disease Severity is calculated as the ratio of diseased leaf pixels to the total leaf pixels, expressed as a percentage. The application was written in Python based on the Toga, taTogaLib, Pillow, OpenCV, OpencvRollingBall, and NumPy libraries. It was compiled for Android using Briefcase.

Downloads

Published

2025-09-30

Issue

Vol. 11 No. 3 (2025): CAI - Argentine Agroinformatics Congress

Section

CAI - Congreso Argentino de AgroInformática

License

Copyright (c) 2025 Emiliano David, Luisa Cabezas, Bruno Lara, Liliana Monterroso, Alberto Lencina

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Acorde a estos términos, el material se puede compartir (copiar y redistribuir en cualquier medio o formato) y adaptar (remezclar, transformar y crear a partir del material otra obra), siempre que a) se cite la autoría y la fuente original de su publicación (revista y URL de la obra), b) no se use para fines comerciales y c) se mantengan los mismos términos de la licencia.

How to Cite

David, E., Cabezas, L., Lara, B., Monterroso, L., & Lencina, A. (2025). Leaf severity calculator. JAIIO, Jornadas Argentinas De Informática, 11(3), 217-221. https://revistas.unlp.edu.ar/JAIIO/article/view/19694