Computing method and system for crop disease index

Abstract

The invention discloses a computing method and a computing method system for crop disease index. The computing method comprises the following steps: acquiring image of crop and pre-processing the image; dividing the pre-processed image into multiple sub-images and extracting color characters of the sub-images; using a minimum distance classifier for identifying the disease types and disease level of the sub-images according to the color characters of the sub-images; computing the crop disease index according to the disease types and disease level of the sub-images. The method solves that the disease index computing of the prior art depends on experience and knowledge of pathology of field crop protection persons, the statistical result is inaccurate and manual computation is required. The method is conducive to improve the prevention and treatment level for crop disease index and promote the implementation of precision agriculture, and novel method and technology are provided for the crop disease prevention and treatment field.

Description

technical field [0001] The invention relates to the field of crop disease prevention and control, in particular to a calculation method and system for crop disease index. Background technique [0002] With the development of the crop industry, the damage of crop diseases is becoming more and more serious. Since the diagnosis of diseases is basically analyzed and judged by experience and pathological knowledge, farmers lack the knowledge of scientific and rational use of pesticides in the process of crop production, resulting in the misuse and abuse of pesticides. If the automatic identification of crop diseases can be realized and the disease index can be accurately calculated, it will be possible to selectively apply pesticides according to the specific conditions of the diseases, reduce the "carpet" spraying of large areas of pesticides, and greatly reduce the use of pesticides Quantity, from the source to ensure the safety of crop production. [0003] The disease index ...

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Problems solved by technology

[0004] Aiming at the defects in the prior art, the present invention provides a method and system for calculating the disease index of crops, which solves the problem of relying on the field plant protection personnel's own experience and pathological knowledge to calculate the disease index of crops, resulting in inaccurate statistical results and low efficiency. low level problem

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