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Image Moire pattern anti-counterfeiting method having high concealment and extraction

A concealed and extractive technology, applied in image watermarking, image data processing, image data processing, etc., can solve the problems of the decline of the concealment of anti-counterfeiting information, the unsatisfactory performance of concealment and extraction and recognition, etc.

Inactive Publication Date: 2018-09-21
合肥博之泰电子科技有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, with the increase of anti-counterfeiting information and the increase of complexity, the concealment of anti-counterfeiting information decreases, and it is easy to be directly detected by human eyes, and the concealment and extraction and recognition performance are not ideal.

Method used

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  • Image Moire pattern anti-counterfeiting method having high concealment and extraction
  • Image Moire pattern anti-counterfeiting method having high concealment and extraction
  • Image Moire pattern anti-counterfeiting method having high concealment and extraction

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Embodiment Construction

[0073] Below in conjunction with specific embodiment, further illustrate the present invention. These examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. Now in conjunction with the accompanying drawings, the structural features of the present invention will be described in detail.

[0074] An image moiré anti-counterfeiting method with high concealment and extractability, comprising the following steps:

[0075] Step 1. Prepare the original image and anti-counterfeiting information

[0076] see figure 1 , randomly select an image with a mid-tone area as the original image, the original image is a rectangle, select the text "F7" as the anti-counterfeiting information, the original image and the anti-counterfeiting information are both in digital file format;

[0077] Open the original image in photoshop, set the original image to C, M, Y, K four color channel modes, select C channel as the anti-counterfe...

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Abstract

The invention discloses an image Moire pattern anti-counterfeiting method having high concealment and extraction. The method comprises the following steps: 1) preparing an original image and anti-counterfeiting information; 2) carrying out halftone processing; 3) anti-counterfeiting information hiding; and 4) image synthesis. The method has larger selection range of the original image and the anti-counterfeiting information, realizes concealment and extraction in an image and is high in concealment and extraction identification performance.

Description

technical field [0001] The invention belongs to the technical field of grating anti-counterfeiting, and in particular relates to an image moiré anti-counterfeiting method with high concealment and extractability. Background technique [0002] At present, most of the main printing anti-counterfeiting technologies are based on high-precision equipment and special materials. The cost of printing anti-counterfeiting is relatively high, and once the materials and equipment used for printing anti-counterfeiting are obtained, they will be copied in large numbers, thus losing anti-counterfeiting effect. Images and texts that need to be printed and reproduced are usually output through halftone screening. The anti-counterfeiting technology based on moiré is a kind of anti-counterfeiting technology based on the current printing anti-counterfeiting technology and the production conditions of ordinary printing enterprises. Small laziness, simple anti-counterfeiting process, good anti-c...

Claims

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Application Information

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IPC IPC(8): G06T1/00
CPCG06T1/0021G06T2201/005
Inventor 王飞
Owner 合肥博之泰电子科技有限公司
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