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A Visible and Hidden Method for Hiding the Embossing Effect of Half-tone Image
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A halftone and image technology, which is applied in the visible and hidden fields of halftone hidden image floating effect, can solve problems such as infringement, and achieve the effect of improving the effect of anti-counterfeiting.
Active Publication Date: 2020-12-04
WENZHOU LIKEDA PRINTING
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Problems solved by technology
Illegal copying and counterfeiting of products have seriously violated the rights and interests of enterprises and consumers
Method used
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Embodiment 1
[0050] Step 1, create a new image as the underlying image for information hiding, and fill it with color. The specific process is: Create a new image file in Photoshop: the image size is 10cm×10cm, the resolution is 2100dpi, the color mode is CMYK mode, and the background color is White.
[0051] Step 2, fill the newly created file with color, and set the fill color value to 30%.
[0052]Step 3, separate the four-color channels of the image file produced in step 2 to form four color plates, and screen the four color plates respectively, that is, in the bitmap mode, use circular dots to add to the four color plates The screening angles of the four color plates of cyan magenta yellow and black (CMYK) are respectively 18.4°, 71.6°, 0°, and 45°, and the number of screen lines is 175lpi.
[0053] Step 4, will figure 2 As hidden information 1, remove the background layer and convert it into a grayscale image;
[0054] Step 5, embed hidden information at the same position in the ...
Embodiment 2
[0064] Step 1, create a new image as the underlying image for information hiding, and fill it with color. The specific process is: Create a new image file in Photoshop: the image size is 10cm×10cm, the resolution is 2100dpi, the color mode is CMYK mode, and the background color is White.
[0065] Step 2, fill the newly created file with color, and set the fill color value to 30%.
[0066] Step 3, separate the four-color channels of the image file produced in step 2 to form four color plates, and screen the four color plates respectively, that is, in the bitmap mode, use circular dots to add to the four color plates The screening angles of the four color plates of cyan magenta yellow and black (CMYK) are respectively 18.4°, 71.6°, 0°, and 45°, and the number of screen lines is 175lpi.
[0067] Step 4, will Figure 5 As hidden information 2, remove the background layer and convert it into a grayscale image;
[0068] Step 5, embed hidden information at the same position in the...
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Abstract
The invention discloses a method for displaying and hiding a floating image effect of a halftone hidden image. Hidden information is added to different positions in the three color plates of the printing image. A combined display and hidden grating tool matched with the three color plates is manufactured, the display and hidden grating tool covers the four-color image containing the hidden information, and then the floating image display effect of the hidden image can be displayed. Information hiding is comprehensively carried out on different color plates. The information is not prone to being imitated by lawbreakers. The floating picture effect of the hidden information is achieved in the display process of the hidden information, the unique display effect is achieved, the purpose of being difficult to imitate is achieved, the anti-fake function of printed images is enhanced, and the purpose of protecting printed packaging products is achieved.
Description
technical field [0001] The invention belongs to the halftone image anti-counterfeiting technology of printed matter, and in particular relates to a display method for halftone concealing the relief effect of images. Background technique [0002] With the continuous development of the printing industry, technologies such as high-precision scanning and duplication are emerging in an endless stream. While these technologies bring convenience to the printing industry, they also provide illegal business opportunities for the production of counterfeit and shoddy goods. Illegal copying and counterfeiting of products have seriously violated the rights and interests of enterprises and consumers. Common printed matter anti-counterfeiting technologies mainly focus on material anti-counterfeiting, ink anti-counterfeiting, printing process anti-counterfeiting, halftone hidden image anti-counterfeiting and so on. Among them, the halftone image hiding technology has attracted the attentio...
Claims
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Application Information
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