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Method and apparatus for generating safety shading in plate making anti-forgery

A shading, safe technology

Inactive Publication Date: 2010-09-08
NEW FOUNDER HLDG DEV LLC +2
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The embodiment of the present invention provides a method and device for generating security shading in plate-making anti-counterfeiting, which is used to solve the problem of ineffective anti-counterfeiting due to the weak randomness of the security shading constructed in the prior art in large-area plate-making anti-counterfeiting good question

Method used

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  • Method and apparatus for generating safety shading in plate making anti-forgery
  • Method and apparatus for generating safety shading in plate making anti-forgery
  • Method and apparatus for generating safety shading in plate making anti-forgery

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Embodiment Construction

[0026] The operation unit is used to perform Boolean operation on the grouped curves;

[0027] The operation unit is specifically used to convert all primitive objects participating in Boolean operations into different regions REGION, wherein each REGION records all BEZIER curves; assigns a unique ID number to each node, and records it in the public In the NODEARRAY; construct a line segment SEGMENTPROPERTY between every two nodes, mark the ID number at the same time, and then add it to the public SEGMENTARRAY;

[0028] Calculate the self-intersection point and the intersection point between each primitive object, and update the association table; if the intersection point does not exist yet, add an item in the public NODEARRAY table to indicate the connection relationship between the new node and the new line segment, if two BEZIER The curves have overlapping parts, and the obtained line segments are exactly the same, and the line segments and nodes of the overlapping parts a...

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Abstract

The invention discloses an anti-counterfeit security pattern generation method in plate making and a device thereof. The invention comprises the following steps: a plurality of discrete points are determined according to the pattern area; grouped curves are generated for each discrete point by taking each discrete point as the reference point. The regularity of the security pattern form generatedby the invention is significantly reduced, and communicated areas of arbitrary shapes can be generated. In this way, it is difficult to analyze the pattern generation method, thus increasing the difficulty of reproduction and counterfeit and improving the security.

Description

technical field [0001] The invention relates to anti-counterfeiting technology, in particular to a method and device for generating security shading in plate-making anti-counterfeiting. Background technique [0002] The current anti-counterfeiting technology is mainly divided into three categories: special material anti-counterfeiting, special process printing anti-counterfeiting and plate-making anti-counterfeiting. Different anti-counterfeiting technologies have played a certain role in anti-counterfeiting within a certain range and to a certain extent, but there is no doubt that the cost of the product will increase significantly. As one of the plate-making anti-counterfeiting technologies, security shading anti-counterfeiting technology is one of the most important technologies in anti-counterfeiting printing. Compared with other anti-counterfeiting technologies, it mainly has the advantages of low cost, good anti-counterfeiting effect, large amount of information and ea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/20
Inventor 亓文法卢书一杨斌
Owner NEW FOUNDER HLDG DEV LLC
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