Automatic detection of nutritional deficiencies in coffee tree leaves through shape and texture descriptors

Marcelo Vassallo-Barco, Luis Vives-Garnique, Victor Tuesta-Monteza, Heber I. Mejía-Cabrera, Raciel Yera Toledo

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Nutritional deficiencies in coffee plants affect production and therefore it is important its early identification. The current research is focused on the automatic identification of nutritional deficiencies of Boron (B), Calcium (Ca), Iron (Fe) and Potassium (K), by using shape and texture descriptors in images of coffee tree leaves. After the acquisition of images containing coffee tree leaves, they are subjected to a segmentation process using Otsu's method. Afterwards, for the resulting images they are applied the descriptors Blurred Shape Model (BSM) and Gray-Level Co-occurrence Matrix (GLCM) for extracting characteristics of shape and texture. Finally, the obtained image representation is used for training KNN, Naïve Bayes and Neural Network classifiers by using the extracted features, in order to infer the type of deficiency presented in each analyzed image. The experimental results show that the developed procedure has a high accuracy, being the better results associated to the identification of Boron (B) and Iron (Fe) deficiencies.

Original languageEnglish
Pages (from-to)7-18
Number of pages12
JournalJournal of Digital Information Management
Volume15
Issue number1
StatePublished - 2017
Externally publishedYes

Keywords

  • Coffee tree leaves
  • Image processing
  • Nutritional deficiencies
  • Shape and textual description
  • Supervised classifier

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