Characteristic angle cosine value method for detecting defects of honey peach brown rot
A defect detection and peach technology, applied in the direction of optical testing flaws/defects, etc., can solve the problems of unfavorable multi-spectral online detection system implementation, large number of bands, etc., and achieve the effect of eliminating interference and reducing costs.
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[0034] The present invention will be further described below in conjunction with drawings and embodiments.
[0035] figure 1 Shown is the implementation flow chart of the characteristic angle cosine value method of peach brown rot defect detection. First, debug the hyperspectral imaging system, subject to the ability to collect clear images, select peach samples at the same time, divide them into normal fruit and brown rot disease fruit, and then collect their hyperspectral images; then process the spectral data in two steps : One is to manually extract normal pixels and brown rot pixels, and after a series of operations such as mean value normalization and calculation of characteristic angle cosine values, construct an LDA pixel classifier; the other is to obtain all pixel spectra of the fruit area, and perform the same operation as before The operation of constructing the test set image. Finally, the test set data is input into the LDA pixel classification to realize the d...
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