Plant Leaf Disease Segmentation and Feature Extraction using Image Processing

Computer Engineering

Plant leaf diseases are decreasing growth and production of plants. At present, farmers are identifying, diagnosing diseases and monitoring health in plants by their own knowledge and experience. Naked eye observation by farmers and experts on big plantation areas cannot be possible each time and it can be expensive. Accurate identification of visually observed diseases, symptoms and controls has not studied yet. Therefore a fast automatic, economical and accurate system is an essential research topic that may improve in leaf disease detection of plant disease. The proposed automatic early leaf disease segmentation and feature extraction system is based on image processing and machine learning where segmenting the major diseases such as Bacteri al Blight, Alternaria leaf spot and Cercospora leaf spot. Initially, the infected leaf images are captured from cotton plant fields by using a digital camera. Scaling, background removing and color conversion are done in the preprocessing phase. After preprocessing, the infected region is obtained by using K-means algorithm and Thresholding technique. Color, texture and edge features are extracted by using image processing technique.

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