Automatic identifying and grading method for bamboo chips

Abstract

The invention relates to an automatic identifying and grading method for bamboo chips. The automatic identifying and grading method comprises the following steps of: (1) shooting a bamboo chip image of a bamboo chip to the graded by a light filter; (2) capturing two screenshots in same size from a bamboo chip part and a background part of the bamboo chip image, wherein the screenshots have N pixels, gray values of the No.i pixels of the screenshots of the bamboo chip part and the background part are respectively defined as G bamboo chip i and G background i, a difference value obtained by subtracting the G background i from the G bamboo chip i is taken as a sample gray level reference value Gi of the No.i pixel in the screenshots, and a sample gray level average value and a gray level fluctuation value are calculated according to the sample gray level reference value Gi; and (3) comparing the measured gray level fluctuation value with a preset gray level fluctuation threshold value F, if the measured gray level fluctuation value is less than the threshold value F, confirming no defect existence, and otherwise, confirming defect existence. According to the automatic identifying grading method for the bamboo chips, provided by the invention, the labor intensity is reduced, the production cost is lowered and the grading efficiency and accuracy are increased.

Description

technical field [0001] The invention relates to an automatic identification and grading method for raw materials of bamboo products. Background technique [0002] "It is better to eat without meat than to live without bamboo", the Chinese have had deep affection for bamboo since ancient times. Various bamboo products have become indispensable necessities in the daily life of Chinese people, such as comfortable and cool mahjong mats, economical and environmentally friendly bamboo flooring, etc., which are very popular among people. However, at present, there are often more middle and low grades in the bamboo products market, and fewer high-grade ones. [0003] Due to the color difference between different bamboos, or even different parts of the same bamboo, and due to moths, mildew, cracks, scratches and other reasons, unscreened bamboo raw materials often have defects. These color differences and defects directly affect the The quality of bamboo products. In order to ensu...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the existing bamboo chip grading technology, such as high labor intensity, high production cost, low grading efficiency, and low accuracy rate, the present invention provides a method that reduces labor intensity, reduces production cost, and improves grading efficiency and accuracy rate. Bamboo chip automatic identification and grading method

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