Using deep learning algorithms to classify crop diseases

International Journal of Electrical and Computer Engineering (IJECE)
Vol. 13, No. 6, December 2023, pp. 6737~6744
ISSN: 2088-8708, DOI: 10.11591/ijece.v13i6.pp6737-6744  6737
Journal homepage: http://ijece.iaescore.com
Using deep learning algorithms to classify crop diseases
Gulden Murzabekova1
, Natalya Glazyrina2
, Anargul Nekessova3
, Aisulu Ismailova4
, Madina
Bazarova5
, Nurzhamal Kashkimbayeva1
, Bigul Mukhametzhanova6
, Madina Aldashova3
1
Department of Computer Sciences, S. Seifullin Кazakh Agrotechnical University, Astana, Kazakhstan
2
Department of Computer and Software Engineering, L. N. Gumilyov Eurasian National University, Astana, Kazakhstan
3
Department of Information Systems, L. N. Gumilyov Eurasian National University, Astana, Kazakhstan
4
Department of Information Systems, S. Seifullin Кazakh Agrotechnical University, Astana, Kazakhstan
5
Higher School of IT and Natural Sciences of the East Kazakhstan University. S. Amanzholova, Ust-Kamenogorsk, Kazakhstan
6
Department of Information and Computing System, Abylkas Saginov Karaganda Technical University, Karaganda, Kazakhstan
Article Info ABSTRACT
Article history:
Received Mar 5, 2023
Revised Apr 28, 2023
Accepted May 11, 2023
The use of deep learning algorithms for the classification of crop diseases is
one of the promising areas in agricultural technology. This is due to the need
for rapid and accurate detection of plant diseases, which allows timely
measures to be taken to treat them and prevent their spread. One of them is
to increase productivity and maintain land quality through the timely
detection of diseases and pests in agriculture and their elimination.
Traditional classification methods in machine learning and algorithms in
deep learning were compared to note the high accuracy in detecting pests
and crop diseases. The advantages and disadvantages of each model
considered during training were taken into account, and the Inception V3
algorithm was incorporated into the application. They can monitor the
condition of crops on a daily basis with the help of new technology-
applications on gadgets. Aerial photographs used by research institutes and
agricultural grain centers do not show the changes that occur in agricultural
grains, that is, diseases and pests. Therefore, the method proposed in this
paper determines the types of diseases and pests of cereals through a mobile
application and suggests ways to deal with them.
Keywords:
Classification
Clustering
Deep learning
Image processing
Machine learning
Plant diseases
This is an open access article under the CC BY-SA license.
Corresponding Author:
Natalya Glazyrina
Department of Computer and Software Engineering, L. N. Gumilyov Eurasian National University
010000 Astana, Republic of Kazakhstan
Email: glazyrina_ns_1@enu.kz
1. INTRODUCTION
Thanks to the development of new technologies, with the help of drones in agriculture, farmers can
access information about the state of the field and each specific crop. But private farmers, and small
agricultural centers do not have the opportunity to purchase drones. Therefore, with the help of an accessible
mobile application and for small plots owned by individual farmers, the proposed method is effective.
90,893 images were trained on a pre-trained database. Among them, for example, corn [1], wheat [2],
oats [3], beans [4], peas [5], and other grains and their common diseases and pests have been considered. In
this paper, the object of study is a deep learning algorithm for object and pattern recognition. The study aims
to develop a cross-platform application that will determine what type and species a plant belongs to, as well
as issue a certificate about it. This system provides for the main function of “determinant of plant diseases”
according to a photo taken in real-time or stored in the gadget's storage. When developing an object
recognition application, several important tasks had to be solved. The first task is to choose how to measure
or calculate features, and the second task is related to the presentation of the resulting data. It is necessary to

 ISSN: 2088-8708
Int J Elec & Comp Eng, Vol. 13, No. 6, December 2023: 6737-6744
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select the maximum possible number of features for recognizable images, taking into account the complexity
and accuracy of determining the result for each feature.
Images in the database are not tied to the types of diseases and pests depending on climatic
conditions. That is, many types of diseases and pests found in all possible grains have been studied.
Improving objects [6]–[8] and increasing their quality in various applied tasks, in particular, in the field of
agriculture, is one of the topical issues. Therefore, this paper considers a modified type of machine learning
method aimed at improving reliability and reducing the number of errors. It has been observed that
depending on the camera resolution of various gadgets, the image quality deteriorates when the image is
enlarged. To solve this problem, machine learning methods were used to automate the scaling and
enhancement of objects in images. The difference between this work from other works is the classification of
the magnification result while maintaining image quality.
Nikhitha et al. [9] developed an easy-to-use tool that recognizes the stage of the disease and
classifies it accordingly. Researchers use only Inception V3, but in this work, a combination of methods
(ESRGAN+ResNet52V2)+Inception V3 is used for classification to improve the accuracy of plant disease
detection. MNet: An interconnected network [10] created and published a database consisting of 12,000 color
images of India's top fruits, labeled as “good” and “poor” quality. By testing Inception V3 as the proposed
framework on the most popular deep learning model, conflicts and results for Inception V3, FC_Inception
V3, and MFC_Inception V3 would be obtained. Experimental results show that the MFC_Inception V3
model achieved 99.92% accuracy. Based on the results achieved by these researchers, this work used the
Inception V3 algorithm in combination with ESRGAN+ResNet52V2 to determine the classification accuracy
of plant diseases. Ukwuoma et al. [11] use functional descriptions to implement the model and the problem
of using deep learning to detect and classify fruits. The authors also implemented a deep learning model for
fruit classification from scratch using the popular Fruits 360 dataset to help novice agronomists understand
the role of deep learning in agriculture.
2. METHOD
Super high-resolution single image (SISR) is a computer vision task that reconstructs a high-
resolution (HR) image from a low-resolution (LR) image. Given that images taken from various sources such
as gadget cameras, computers, and satellite images are not always high resolution. Therefore, improving the
quality of images used to solve important problems, for example, identifying a plant disease, requires the use
of new technologies. In this work, to detect plant diseases according to the architecture, which is shown in
Figure 1, the enhanced super resolution generative adversarial network module (hereinafter ESRGAN
[12]–[14]) based on the generative adversarial network (GAN) structure [15]–[17] Figure 1 was added.
Figure 1. Enhanced super resolution GAN module architecture
As method of convolutional neural networks (CNNs), the ResNet152V2 method was used, which
makes it possible to improve images. As a result of the experiment, the quality of the image obtained by the
ResNet152V2 method [18], [19] is significantly improved. Solving the problem of improving image quality
using neural networks, the choice was made in favor of CNNs, as they are better than others at coping with

Int J Elec & Comp Eng ISSN: 2088-8708 
Using deep learning algorithms to classify crop diseases (Gulden Murzabekova)
6739
image enhancement tasks. Structured numerical data helps to train the model for further use, while deep
learning does not require human intervention, when training data that has been divided for training, methods
detect features on their own using layers and filters. The initial version 3 consists of symmetric and
asymmetric building blocks, including convolutions, mean pooling, peak pooling, concatenation, elimination,
and fully connected layers Figure 2. Batch normalization is widely used throughout the model and applied to
activation inputs.
With the help of modern technologies, problems that one has to face daily are solved. One of them is
monitoring the condition of crop plants [20]. In this work, it is recommended to identify and prevent diseases
during their growth to obtain a good harvest of fruits. To solve the tasks, machine learning methods were
considered to improve the image and the Inception V3 [21]–[23] deep learning algorithm for classification by
plant diseases [24]–[26].
Figure 2. Inception V3 convolutional neural network architecture
3. RESULT AND DISCUSSION
3.1. Data analysis for plant disease classification
Depending on the climatic conditions of each country, the types of diseases and pests found on crops
may be different. Therefore, this work involves more than one region, the preliminary database includes
currently known crops and types of their diseases. The training dataset contains 30,542 pre-trained image sets
taken from the Kaggle open access database. Figure 3 shows healthy and diseased varieties of the most
common crops, i.e., the affected leaf of wheat as shown in Figure 3(a), the affected leaf of rice as shown in
Figure 3(b), the affected leaf of corn as shown in Figure 3(c), the healthy leaf of wheat as shown in
Figure 3(d). Including wheat-5215, potatoes-4793, rice-3719, corn-3534, oats-3518, peas-1946, beans-1983,
flax-3200, soybeans-1785, sugar beet-799.
In this work, machine learning was performed on images of crops and their types of diseases by
architecture, which is shown in Figure 1. During the experiment, the accuracy of the result when learning
without improving the quality of images in the database was, on average, quite low, i.e., 85%. To improve
image quality, in addition to the GAN model, the ResNet52V2 algorithm was trained, and the accuracy of the
result obtained by retraining using the Inception V3 classification algorithm averaged 98% Table 1.
3.2. Implementing a mobile application with deep learning algorithms
To start the application, you need to select the type of image upload. Users can upload an image
through the gallery or take a picture through the smartphone's cameras. Thus, an input image is introduced,
which passes through the first trained GAN-based model, with the ESRGAN method, which performs the
function of improving image quality as shown in Figure 4. After obtaining a high-quality image, the drawing
is passed through a second trained CNN-based model with the Inception V3 method, which in turn performs
classification to detect crop diseases such as wheat, rice and corn. After passing the models, a percentage
prediction is eventually provided for any plant disease.
Based on the experiment, 30542 sets of images were examined. To see the likelihood of disease
development, the model was fitted with and without the ResNet152v2 method improvement. The original
image has been pre-processed according to sample requirements. Figure 5 shows the learning curves for the
Inception V3 algorithm, i.e., the accuracy plot in Figure 5(a) and the data loss plot for testing in Figure 5(b)
assumed in this article.

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Inception V3 was initially trained on a pre-trained dataset that contains 30542 images. The accuracy
of deep learning when training with the Inception V3 method was 94%, and when testing it was 92%.
According to this model, the losses during training were about 6%, and during testing -8%.
In Figure 6 shows the interface of the developed mobile application, that is, the definition of
diseases of crops, namely the definition of diseases of wheat is shown in Figure 6(a) and rice is shown in
Figure 6(b). Figure 6 shows the interface of the developed mobile application. The interface of the created
mobile application is simple and clear to the user. The mobile application is designed for farmers. The user
can upload and save any image and determine the crop and its status in real-time through the application.
(a) (b)
(c) (d)
Figure 3. Original images of plant leaves (a) affected leaf of wheat, (b) affected leaf of rice,
(c) affected leaf of corn, and (d) healthy leaf of wheat
Table 1. The average accuracy of determining diseases of indoor and garden plants
Source images Inception V3 (ESRGAN+ResNet52V2)+Inception V3
Potatoes 85% 93%
Rice 87% 95%
Corn 84% 90%
Oats 86% 95%
Peas 87% 93%
Beans 84% 90%
Linen 87% 95%
Soy 86% 93%
Sugar Beet 89% 95%
Figure 4. The architecture of the mobile application for plant disease detection

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(a) (b)
Figure 5. The result of learning Inception V3 (a) accuracy plot and (b) loss plot
(a) (b)
Figure 6. Definition of disease of crops (a) definition of diseases in wheat and (b) in rice
4. CONCLUSION
The data was pre-trained and trained with super-resolution advanced generative adversarial network
models and combined with the ResNet152V2 CNN. A study with combined use of a CNN showed high
accuracy rates. That is, the joint use of the ESRGAN algorithm with a CNN showed an average of

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ESRGAN+ResNet152V2+Inception V3 94% accuracy than Inception V3 86%. In this work, 30,542 pre-
trained datasets of many common crop species and their diseases are included. As image classification
methods, the performance of a deep learning method such as Inception V3 has been analyzed. Many
scientific studies use the ESRGAN model to improve the image. In our work, a CNN was added to the
existing ESRGAN model, and a better result was achieved than the Inception V3 deep learning method itself.
Using a mobile application, the user can determine the type of crops and the presence of diseases in them
from photographs stored in the gallery, or using a camera in real-time. In the future, taking into account the
climatic conditions of the region, changes in the environment, and scientific innovations in the field of
agriculture, we will include new types of crops and their diseases in the database.
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BIOGRAPHIES OF AUTHORS
Gulden Murzabekova graduated from the Faculty of Applied Mathematics-
Control Processes of Saint-Petersburg State University in 1994, where she also successfully
defended her doctoral thesis in 1997 on discrete mathematics and mathematical cybernetics.
Since 1998 she has been an associate professor in the Department of Informatics, head of the
Information and Communication Technologies Department during 2003-2022, and recently
she is an associate professor of the Computer Science Department at Seifullin Kazakh
Agrotechnical University. She has authored more than 100 papers. Her research interests
include numerical methods of non-smooth analysis and nondifferentiable optimization,
mathematical modeling, artificial intelligence, and machine learning. She can be contacted at
email: g.murzabekova@kazatu.kz.
Natalya Glazyrina graduated from the Institute of Automation,
Telecommunications and Information Technology of Omsk State Transport University in
2003. She defended her doctoral thesis on Computer Technology and Software in 2015. From
2016 to the present time, she is an associate professor of the Department of Computer and
Software Engineering at L.N. Gumilyov Eurasian National University. She has authored more
than 50 papers. Her research interests include mathematical and computer modeling, artificial
intelligence, automation of technological processes. She can be contacted at email:
glazyrina_ns_1@enu.kz.
Anargul Nekessova received an academic degree of Master of Technical Sciences
in the specialty 6М070300 - “Information systems” at Eurasian National University (ENU)
named after L.N. Gumilyov, Astana, Kazakhstan, 2013. She is the author or co-author of more
than 30 publications. Her research interests include knowledge bases, big data, artificial
intelligence and machine learning. She can be contacted at email: aimurat_anara@mail.ru.
Aisulu Ismailova received her Ph.D. in 2015 in Information Systems from L.N.
Gumilyov Eurasian National University, Kazakhstan. Currently, she is an associate professor
at the Department of Information Systems S. Seifullin Kazakh Agrotechnical University. Her
research interests include mathematical modeling, bioinformatics, artificial intelligence, and
data mining. She can be contacted at email: a.ismailova@mail.ru.
Madina Bazarova received the Master of Engineering academic degree of
specialty 6М070300 - “Information systems” and the PhD degree of specialty 6D070300 -
“Information systems”, received an academic degree of Master of Technical Sciences in the
specialty “Information systems” at D. Serikbayev East Kazakhstan State Technical University
(EKSTU), Ust-Kamenogorsk, Kazakhstan, 2019. Currently, he is the Deputy Dean for
Academic Affairs of the Higher School of IT and Natural Sciences of the East Kazakhstan
University. S. Amanzholova. She is the author or co-author of more than 30 publications.
Hirsch Index-3. Her research interests include ontologies, knowledge bases, distributed
systems, artificial intelligence. She can be contacted at email: madina9959843@gmail.com.

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Nurzhamal Kashkimbayeva received an academic degree of Master of
Technical Sciences in the specialty 6M070300 - “information systems” at the Kazakh
Economic University of Finance and International Trade in Astana. Currently she work at the
Kazakh Agrotechnical University named after S. Seifullin. She is the author or co-author of
more than 15 publications. The Hirsch Index is 1. Her research interests include
geoinformation technologies, knowledge bases, pattern recognition, artificial intelligence. She
can be contacted at email: n.kashkimbaeva@kazatu.kz.
Bigul Mukhametzhanova received her doctorate degree (Ph.D.) in 2022 in the
specialty “Computer Engineering and Software” at the Eurasian National University named
after L.N. Gumilev, Kazakhstan. Currently Abylkas Saginov Karaganda Technical University
works. Hirsch index-2. Her scientific interests include digital image processing, knowledge
bases, artificial intelligence. She can be contacted at email: grek79@mail.ru.
Madina Aldashova received a bachelor's degree in mathematics and computer
science in 2002 and a master's degree in the field of information systems in 2013 from the
University of Turan-Astana, Kazakhstan, Nursultan. Currently, he is studying in the doctoral
studies of the Department of Information Systems of the Institute named after L.N. Gumilyov
at Eurasian National University. Its research interests include mathematical modeling,
computer technology, models and control methods, biosystems, and control systems. She can
be contacted at email: maldashova@internet.ru.

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