Challenge Faced in K-Means Clustering for the Choice of Automatic K-Value for Segmentation of Black Sigatoka Disease in Banana Leaves
Srivalli Devi S.1, A. Geetha2

1Srivalli Devi S.*, PG & Research, Department of Computer Science, Chikkanna Government Arts College, Tirupur (Tamil Nadu) India.
2Dr. A. Geetha, PG & Research, Department of Computer Science, Chikkanna Government Arts college, Tirupur (Tamil Nadu) India.
Manuscript received on December 17, 2019. | Revised Manuscript received on December 23, 2019. | Manuscript published on January 10, 2020. | PP: 1179-1187 | Volume-9 Issue-3, January 2020. | Retrieval Number: C8014019320/2020©BEIESP | DOI: 10.35940/ijitee.C8014.019320
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Abstract: Clustering is defined as grouping similar items . The three types of machine learning techniques are supervised, unsupervised and semi-supervised. In unsupervised technique, there are no class labels given to the input data. Clustering is a type of unsupervised learning technique. Recently clustering is applied in many fields such as medicine, agriculture, biology, computers, finance and robotics. Black sigatoka is a bacterial disease occurring commonly in banana plants .The research currently focuses on segmenting the disease area from non-diseased area.The segmentation class training is done via Trainable Weka Segmentation and we also do segmentation using k-means algorithm. In this paper we propose a novel approach for extraction of the black sigatoka diseased area on banana leaves from images using pixel color values and grouping them into their respective clusters accordingly. This is a segmentation cum clustering algorithm. The novel approach has been proposed to overcome the shortfall of k-means clustering when segmenting using automatic value selection for k-means by using silhouette values.Using this novel approach its easy to cluster and segment at the same time. The segmented image from this algorithm can be used in disease classification tasks. 
Keywords: Black sigatoka, K-means Clustering, Trainable Weka Segmentation, Silhouette Score, Pixel Color Values
Scope of the Article: Clustering