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Intelligent plastic sheet color sorting method based on image processing

An image processing and plastic sheet technology, applied in the field of color sorting algorithm, can solve the problems of plastic sheet misjudgment, lower color sorting accuracy, uneven color of plastic sheets, etc.

Pending Publication Date: 2020-10-30
安徽慧视金瞳科技有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two technical solutions only involve the mechanical structure of plastic sheet color sorting, and there is no specific discussion on the color sorting algorithm, and the broken plastic sheets are often in the form of blocks. Due to the uneven color of the plastic sheet itself or the influence of light, conventional color The selection algorithm used in the color sorting of plastic sheets is prone to misjudgment and reduces the accuracy of color sorting

Method used

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  • Intelligent plastic sheet color sorting method based on image processing
  • Intelligent plastic sheet color sorting method based on image processing

Examples

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Embodiment 1

[0025] In this embodiment, 5 color spaces are taken as examples for illustration. The intelligent color sorting method for plastic sheets based on image processing disclosed by the present invention, such as figure 1 shown, including the following steps:

[0026] 1. According to actual needs, pre-set the RGB range of 5 color spaces, and the RGB range of each color space is expressed as (Ci.Rmin, Ci.Rmax), (Ci.Gmin, Ci.Gmax), (Ci.Bmin ,Ci.Bmax), where i=1,2,3,4,5.

[0027] 2. Collect the background image and count the RGB range of the background pixels. In order to facilitate the distinction, it is advisable to select a background with a large color difference from the plastic sheet.

[0028] 3. Acquire the image of the plastic sheet and perform preprocessing, including distortion correction and edge enhancement. Distortion correction and edge enhancement are common image processing technologies, and the specific algorithms adopted in this embodiment are briefly described her...

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Abstract

The invention discloses an intelligent plastic sheet color sorting method based on image processing, and relates to the technical field of color sorting algorithms. The method comprises: performing color analysis on an obtained plastic sheet image line by line and pixel by pixel, and if the pixel coverage rate of a target color belonging to the plastic sheet image exceeds a threshold value, judging that the plastic sheet is a target plastic sheet. According to the invention, microscopic pixel point identification is carried out on the plastic sheet, and whether the plastic sheet is a target plastic sheet is judged by counting the color space to which each pixel point belongs, so that accurate color sorting of the plastic sheet is realized.

Description

technical field [0001] The invention relates to the technical field of color sorting algorithms, in particular to an image processing-based intelligent color sorting method for plastic sheets. Background technique [0002] Waste plastics account for a considerable proportion of municipal solid waste, and it is gradually rising, making plastic sorting and resource recycling imperative, and color sorting is one of the important links in the process of sorting waste plastics. [0003] The invention patent CN103350074B authorized on December 23, 2015 discloses a plastic sheet color sorting and sorting device, which uses a camera and a light source to take images of plastic sheets and judge the color of the plastic sheets. The valve system blows it out. The invention patent CN106426646B authorized on August 28, 2018 also discloses a plastic sheet color sorting and sorting device. On the basis of the aforementioned technical solution, an equalizing mechanism is installed to make ...

Claims

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Application Information

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IPC IPC(8): G06T7/90G06T5/00B07C5/342
CPCG06T7/90B07C5/342G06T2207/10024B07C2501/0054G06T5/80G06T5/73
Inventor 林传文汪俊锋邓宏平
Owner 安徽慧视金瞳科技有限公司
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