Study on the Method of Feature Extraction of Vegetable Diseases Based on Image Processing

Using computer image processing technology, greenhouse vegetable diseases were recognized intelligently, and taking the cucumber mildew as an example, the method of image pre-processing and feature extraction for intelligently recognizing greenhouse vegetable diseases was studied. White was chosen as the background of diseased leaf, median filter was utilized to effectively wipe out the disturbance of noise, and two-apex method was applied to separate the disease images from the background. Geometrical features of the disease spots were accurately extracted by performing image edge detection. The results suggest that the method can pre-process images and precisely extract the features of the diseases.