Computer Vision Method Applied for Detecting Diseases in Grape Leaf System.

Grape diseases detection is an important issue in sustainable agriculture. Recognition method of grape leaf diseases is put forward based on computer vision. A computer vision detection system is constructed to acquire the grape leaf disease images. The grape leaf disease regions are segmented by Otsu method, and the morphological algorithms are used to improve the lesion shape. Prewitt operator is selected to extract the complete edge of lesion region. Grape leaf diseases recognition model based on back–propagation (BP) neural network can efficiently inspect and recognize five grape leaf diseases: leaf spot, Sphaceloma ampelinum de Bary, anthracnose, round spot, and downy mildew. The results indicate that the proposed grape leaf diseases detection system can be used to inspect grape diseases with high classification accuracy.