用图像处理、植物病理学、色度学、几何特征、距离特征等方面的知识,研究了作物病害受害程度的检测,以生产中常见的玉米小斑病、水稻纹枯病、水稻稻瘟病为研究对象,经过图像预处理后提取作物的颜色特征、几何特征、距离特征,建立了作物危害程度检测模型-With knowledge of image processing, plant pathology, colorimetry, geometry, distance characteristics and other aspects of the study to detect crop diseases injured degree, to produce common maydis, rice sheath blight, rice blast is study, after image preprocessing feature extraction crop color, geometry, distance characteristics, the establishment of a degree of harm crop detection model