Abstract
Objectives: To make automatic classification of diseased potato and grape leaf from normal potato and grape leaf. Methods: Experimental sample size of 3000 and 4270 Potato and Grape leaf images were used respectively. The diseased and healthy leaf image samples were taken from PlantVillage dataset. The color features viz., average Red, Green, Blue and Hue intensities of Lesion region were calculated. Features namely Contrast, Dissimilarity, Homogeneity, Energy, Correlation, ASM, and Entropy were extracted from hue lesion region. Also, histogram features such as mean and standard deviation were extracted from hue infected region. Then, data normalization was done on feature set to bring all features into a common scale. Finally, Naïve Bayes, K Nearest Neighbor and Support Vector Machine Classifiers were applied on the above said feature sets. Findings: The Dataset was split in the ratio of 80% and 20% for training and test sets. The classifiers NB, KNN and SVM classified Potato leaves with an accuracy of 88.67%, 94.00% and 96.83% respectively and Grape leaves with an accuracy of 81.87%, 93.10% and 96.02% respectively. For both the species, SVM classifier gave the highest accuracy. Also, it was found that the proposed method performs well as compared with the related works in the literature. Novelty/Applications: An effective feature extraction method to classify grape and potato diseases was proposed in this research work. Also, it was found that the proposed method performs well as compared with the related works in the literature. Keywords: RGB color space; HSV color space; histogram; color features; grey-level co-occurrence matrix; texture features
Highlights
Detection and management of these diseases are essential to prevent plants from being infected in large numbers, thereby avoiding yield loss and economic loss
In[2] had extracted features namely Contrast, Correlation, Energy, Homogeneity, Mean, Standard Deviation, Entropy, Variance, Cluster Shade, Kurtosis, Skewness, Cluster Prominance. They had classified grape leaf diseases such as Black Rot, Downey Mildew, Powdery Mildew, Leaf Roll and Healthy leaves from leaf images using SVM classifier and obtained an accuracy of 94%
From the table it can be observed that SVM classifier gives a maximum accuracy of 96.83% and a kappa score of 0.91 for diseased Potato leaf images
Summary
Detection and management of these diseases are essential to prevent plants from being infected in large numbers, thereby avoiding yield loss and economic loss. In[2] had extracted features namely Contrast, Correlation, Energy, Homogeneity, Mean, Standard Deviation, Entropy, Variance, Cluster Shade, Kurtosis, Skewness, Cluster Prominance. They had classified grape leaf diseases such as Black Rot, Downey Mildew, Powdery Mildew, Leaf Roll and Healthy leaves from leaf images using SVM classifier and obtained an accuracy of 94%. In[4] had suggested Back Propagation Neural Network for predicting grape diseases Downey Mildew, Powdery Mildew, Black Rot, Leaf Roll And Normal Leaf They had fed features such as Energy, Entropy, Correlation, Cluster Prominence and Cluster Shade into the neural network and had observed an accuracy of 92.94%
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