Method for measuring length and width of irregular object

Abstract

The invention provides a method for measuring the length and width of an irregular object. The method is characterized by comprising the following steps of: step 1, acquiring a to-be-measured object picture, and converting the picture into a grayscale matrix graph; step 2, performing median filtering and de-noising processing on the grayscale matrix graph; step 3, performing threshold segmentation on the denoised grayscale image; step 4, performing edge extraction on the segmented image; step 5, calculating the slope rate of a tobacco stem; and step 6, calculating the length and width of the stem. The method for measuring the length and width of the irregular object is capable of rapidly and non-destructively measuring the length and width of the tobacco stem.

Description

technical field [0001] The invention relates to a method for measuring the length and width of irregular objects, which belongs to the field of tobacco industry. Background technique [0002] Tobacco stem is a by-product of the tobacco industry, that is, the thick and hard veins of tobacco leaves, accounting for about 25% to 30% of the leaf weight. The physical characteristics of tobacco stems in different parts of tobacco leaves are also different. Under normal circumstances, the tobacco stems in the upper part of the tobacco are the thickest. , the lower tobacco stem is the thinnest, and it contains more effective chemical components, which are basically the same as the effective chemical components in tobacco leaves, and are valuable natural resources. At present, as a big tobacco country, nearly 100,000 tons of tobacco stems are discarded directly in my country every year, wasting a lot of precious resources and causing relatively large environmental pollution. [0003]...

AI Technical Summary

Problems solved by technology

At present, as a big tobacco country, nearly 100,000 tons of tobacco stems are directly discarded in my country every year, wasting a lot of precious resources and causing relatively large environmental pollution.

[0003] At present, most rebaking enterprises adopt the following methods to reprocess the tobacco stems: 1. Tobacco stems are mixed with shredded tobacco to increase the filling property of shredded tobacco and enhance the air permeability of finished tobacco combustion, thereby improving the quality of cigarettes. Combustibility plays an important role; 2. After stacking and crushing, it is used as organic fertilizer, and the concentrated accumulation and natural decay becomes unusable garbage and then destroyed. This method is not only time-consuming and laborious in the transfer, stacking, decay, loading, transportation and other processes of tobacco stems , occupies a large area, and wastes renewable resources, and causes environmental pollution at the same time

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