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A method of image laser engraving based on halftone technology

A laser engraving and halftone technology, applied in laser welding equipment, metal processing equipment, welding equipment, etc., can solve the problems of unsatisfactory effect and unfriendly user, so as to improve the experience, improve the engraving effect, and simplify the operation process Effect

Active Publication Date: 2020-08-04
CHONGQING UNIV IND TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing laser engraving methods based on vectorization or dot matrix have problems such as being very unfriendly to users and unsatisfactory, so there is still room for improvement

Method used

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  • A method of image laser engraving based on halftone technology
  • A method of image laser engraving based on halftone technology
  • A method of image laser engraving based on halftone technology

Examples

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Embodiment 1

[0046] join Figure 1 to Figure 5 , a kind of picture laser engraving method based on halftone technology, mainly comprises the following steps:

[0047] 1) Select the original picture to be engraved, and grayscale the original picture, so as to generate picture I.

[0048] RGB image grayscale methods mainly include the following four:

[0049] 1) component method, promptly use a certain component of RGB three components as the gray value of this point.

[0050] II) the maximum value method, the maximum value of the three-component brightness in the color picture is used as the gray value of the gray scale image.

[0051] III) Averaging the three-component brightness in the color image to obtain a grayscale image.

[0052] IV) The gray scale weight method adopted by the Open CV open library.

[0053] The physical meaning of the Y component of the YUV picture itself is the brightness of the pixel, which reflects the brightness level. Therefore, the correspondence between th...

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Abstract

The invention discloses an image laser engraving method based on the halftone technology. The image laser engraving method mainly comprises the steps of (1) selecting an original image to be engravedand conducting graying on the original image to generate an image I; (2) conducting anisotropic filtering on the image I and adjusting the contrast ratio and the brightness of the image I to generatean image II; (3) conducting edge detection on the image II through a gradient operator to generate an image III; (4) conducting halftone treatment on the image II to generate an image IV; and (5), generating G-codes of the image IV according to the resolution ratio of a laser engraving machine. The laser engraving machine conducts image engraving according to the G-codes. Through the image laser engraving method based on the halftone technology, the complex operation in an existing DIY engraving technology is simplified, and the user operation process is simplified; the engraving effect duringimage engraving is improved, user experience is improved, the automation degree is high, and the image engraving effect is good.

Description

technical field [0001] The invention relates to the field of laser engraving, in particular to an image laser engraving method based on halftone technology. Background technique [0002] Laser engraving process uses numerical control technology to control the laser and achieve the purpose of processing the material to be processed. Laser engraving is to use the high temperature when the laser gathers to melt the surface of the material instantly. With the help of numerical control technology, it can realize the engraving of specific pictures on the surface of the material. This technology is not affected by the elasticity and flexibility of the material and is convenient for processing soft materials. , so it is very popular with laser engraving enthusiasts, and the market is very extensive. [0003] The existing laser engraving methods based on vectorization or dot matrix have problems such as being very unfriendly to users and not achieving satisfactory results, so there ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/362
CPCB23K26/361B23K26/362
Inventor 伍洲曾焱刘界鹏冯亮
Owner CHONGQING UNIV IND TECH RES INST
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