TAN Rong-rong, ZHU Wei-xing. Research of weed feature extraction method based on image processing technology[J]. 2009, 28(2): 56-59+65. DOI: 10.13873/j.1000-97872009.02.019.
Computer vision technology used to weed identification from background which to spray herbicide in a precise position has become a hot research of precision agriculture.A weed identification method that takes OHTA as color space and I2′as characteristic variant is presented
automatic threshold selection method on the basis of genetic algorithms for the feature component I2′is used to separate weed and wheat preliminarily
and then color clustering and morphological filtering is used to achieve the accurate weed regions.The experiment results show that separating directly in the color space would improve the segmentation effect of color images
and the average correct identification rate reaches 90.47 % using the method proposed before.
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