A paper counting method

Abstract

The invention provides a paper counting method of utilizing a digital microscope to collect images and processing the collected images through image software. The method comprises the following steps: (1) utilizing the digital microscope to collect a color image of the paper side; (2) graying the color image through the image processing software; (3) setting a threshold value between 60 and 160 and performing an image binaryzation on the grayscale image; (4) scanning each line of pixels of the binary image of the paper, summarizing percentage P1 of the number of the line of pixels which are black in the whole line of the pixel and comparing the P1 with a threshold parameter P; if the P1 is larger or equal to the P, the line is considered to be black, otherwise, the line is considered to be white; and at last, counting the transformation times of the black line into the white line and the time is the paper number. The paper counting method is simple, effective and low in cost; no matter high-weight paper or low-weight paper, the count accuracy thereon is high and the paper is not contacted directly; and thus the paper counting method has a good popularization and application prospect in the printing and reproduction industry.

Description

technical field [0001] The invention relates to a counting method, in particular to a paper counting method in the printing and reproduction industry, and more particularly to a paper counting method which uses a digital microscope to collect images and processes them with image software for counting. Background technique [0002] Quantity is one of the important quality indicators for products leaving the factory, and accurate counting is a basic requirement for the printing and reproduction industry. Printed products are often cut and packaged in a fixed quantity when they leave the factory. For example, in the label cutting process, when cutting a large printed piece into a finished cigarette label that meets the required size, it needs to be divided into a stack of 500 pieces first. The paper counting process is usually performed by manual counting or weighing to convert the weight and quantity. These operations require the product to be rolled off the automatic producti...

AI Technical Summary

Problems solved by technology

Because the mechanical counting machine uses mechanical counting, not only the counting speed is relatively slow, but also the corners of the paper used for counting will be discounted, which will affect the appearance quality of the product. It is especially not suitable for high-weight products; the photoelectric counting machine is due to Limited by the accuracy of the camera used and the pixels collected, the error is large for counting low-weight paper such as coated paper, and it can only be used for counting products with a high grammage such as 200 or more; in addition, mechanical counting machines and photoelectric The price of the formula counting machine is high, the mechanical counting machine is 200,000 yuan / set, and the photoelectric counting machine is 150,000-200,000 yuan / set, so it cannot be widely used

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