In India, Agriculture is of great importance. Diseases affecting crops is a major challenge faced by
Agricultural industry. Hence earlier detection of crop disease has greater importance in agricultural
field. In recent years, the number of diseases on plants and degree of harm caused has increased due
to the variation in the varieties of microorganisms, inadequate cultivation methods and inappropriate
plant protection techniques. In the present study, Farmers spend so much money on disease
management, often without adequate technical support, resulting in poor disease control, pollution
and harmful results. In addition, plant disease can destroy natural ecosystems, adding environmental
problems caused by poor management of crops. A symptom of plant disease is a visible effect of
disease on the plant. Symptoms may include a visible change in colour, shape or function of the plant
as it responds to the pathogen. A faster method for detection of crop diseases is done with the help of
IoT. A sensor network can be created in the farm land using Raspberry Pi 4 model. The images will
be captured by the sensor cameras and send to the cloud server via Raspberry pi 4 model. The
proposed model is a theoretical model. In this proposed methodology, various image processing
techniques will be applied on acquired images for classification of crop diseases using fuzzy c-means
clustering algorithm. This paper will also shows the method of image processing techniques such as
image acquisition, image pre-processing, image segmentation and feature extraction for classification
of crop diseases. Farmers can produce quality crops and thus healthy food can be obtained by this
proposed methodology and make more profit.