CN102514410A - Anti-counterfeiting method based on image hiding technology - Google Patents
Anti-counterfeiting method based on image hiding technology Download PDFInfo
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- CN102514410A CN102514410A CN201110366402XA CN201110366402A CN102514410A CN 102514410 A CN102514410 A CN 102514410A CN 201110366402X A CN201110366402X A CN 201110366402XA CN 201110366402 A CN201110366402 A CN 201110366402A CN 102514410 A CN102514410 A CN 102514410A
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Abstract
The invention discloses an anti-counterfeiting method based on an image hiding technology. According to the method, a certain pattern element is hidden in a certain background graph, the pattern element is printed on a grating sheet material by creatively utilizing the optical property of the plastic grating sheet material, and post-press finishing is carried out so as to obtain an anti-counterfeiting card. The method can be applied to anti-counterfeiting of credentials, certificates, card products and package box products. The method has the advantages that only design and production staff know the processing process of the hidden image-text in a card, so that the card has a strong anti-counterfeiting function and is difficult to imitate; the card is convenient to use, the hidden image-text can be seen by means of equipment with a clear camera shooting function, so that the method has the advantages of simple identification and low cost, and can be effectively used for anti-counterfeiting in package, certificates, various cards and other fields; and identification of the hidden image-text of the card cannot be influenced by a bent anti-counterfeiting card.
Description
Technical field
The present invention relates to a kind of method for anti-counterfeit based on image concealing technology.
Background technology
In today of Market competition, each enterprise all constantly researching and developing new product, eliminates old product, thus the trend of the market of leading.Many quality products, high-end brand product slowly become the bellwether, have obtained high profit.At this moment, driven by interests, that some lawless persons begin is counterfeit with inferior raw material, forge those famous-brand and high-quality goods, has brought bigger harm for consumer, enterprise, society.Consumer, enterprise, society are all calling new anti-counterfeiting technology to contain the impetus of " personation, forgery ".Now, the anti-counterfeiting technology means on the market are varied, make consumer and enterprise discern the forgery and illegal imitation of brand-name products product on the market through the anti-counterfeiting technology means.
Anti-counterfeiting technology should satisfy three basic demands: (1) difficult imitated property.Require the related equipment of anti-counterfeiting technology and with high content of technology, complex process has certain ageingly, avoids by imitated.(2) be prone to identity.Require the method simple and fast of the identification packing true and false, be adapted to consumers in general and can discern by vision, feel etc.(3) false proof cost appropriateness.
Although information anti-fake technology widespread as using laser holography etc., still lacks the anti-counterfeiting technology that can satisfy above-mentioned three conditions simultaneously preferably in field of anti-counterfeit technology in the prior art.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art; The invention provides a kind of method for anti-counterfeit,, creatively utilize the optical property of plastic cement grating sheet through being hidden in a certain pattern element (hereinafter to be referred as pel) in certain secondary Background based on image concealing technology; On grating sheet, print; Through post-press finishing, obtain false proof card again, can apply to the false proof of certificate, certificate, card series products, packing box product.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method for anti-counterfeit based on image concealing technology comprises the steps:
The line number of the first step, mensuration grating sheet:
Adopt test-strips to come photometry grid line number, said test-strips is evenly distributed by some calibration tapes and forms, the high 20mm of each calibration tape, the long length that equals grating sheet; Make test-strips and save as the TIF file with Photoshop; Export on the film through laser photocomposing machine; Fit the film with grating sheet at last and aim at observation; Select one not have disconnected phenomenon, the color of cutting near whole calibration tape, with the line number of the pairing line number of this calibration tape as grating sheet;
Second step, planar design:
Set the resolution ratio of image according to the line number of grating sheet; And use image processing software to design the picture and text format of false proof card; Comprise pel, Background and foreground picture in the image that need be hidden in false proof card; Each parameter of adjustment pel is duplicated pel and proper alignment then, guarantees that the orientation of pel is parallel to grating fringe; And the pel number of unit sizes is smaller or equal to the line number of grating sheet; It all is lines of a slice rule that image after the feasible arrangement relies on naked eyes or magnifying glass to be watched, and can't directly see the pel of hiding in the lines, is stored as the TIF file with arranging the picture and text format of the hiding pel of need well together with the false proof card that designs;
The 3rd step, plate-making:
Can directly export forme through the computer control exposure, also can export the film earlier and shine the seal carving version again;
The 4th step, printing:
The picture and text format that will contain hidden primitive directly is printed on the non-grating face of plastic cement grating sheet;
The 5th step, cross cutting are processed into false proof card.
The pel number of said unit sizes is littler by 2 than the line number of grating sheet.
Compared with prior art, good effect of the present invention is: owing to have only the personnel that design and produce of false proof card just to understand the processing procedure of the hiding picture and text in the card, so antiforge function is strong, difficult imitated; Easy to use, only need have the equipment of clear camera function by all, just can see hiding picture and text, identification simply, cost is lower, can be effective to pack, fields such as certificate, various cards false proof; And the bending of false proof card can not have influence on the identification of its hiding picture and text yet.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the outward appearance picture and text format sketch map of false proof card of the present invention.
The specific embodiment
False proof card is processed by the plastic cement grating sheet, and is as shown in Figure 1, and the picture and text format of false proof card comprises nicking 1, foreground picture 2 and the Background of being made up of regularly arranged hidden primitive 3.
A kind of method for anti-counterfeit based on image concealing technology comprises the steps:
The line number of the first step, mensuration grating sheet:
Adopt test-strips to come photometry grid line number, said test-strips is evenly distributed by many vertical lines (being calibration tape) and forms.If the grating sheet of test 100LPI (line/inch); Making earlier contains 20 calibration tapes, and (with 100LPI is mediant; About each 10, promptly from 99.0LPI to 100.9LPI, between adjacent two calibration tapes difference 0.1LPI) test-strips; About the high 20mm of each calibration tape, the long length that equals grating sheet.
Make test-strips and save as the TIF file with Photoshop; Export on the film through laser photocomposing machine; Fit the film with grating sheet at last and aim at observation; Select one not have disconnected phenomenon, the color of cutting near whole calibration tape, with the line number of the pairing line number of this calibration tape (being immediate line number) as grating sheet.In order to find grid stroke number the most accurately, can also repeat above-mentioned steps, until finding grid stroke number (being that color is near whole calibration tape) the most accurately.Suppose that the immediate line number of finding out for the first time is 99.2LPI; Then make again and contain 20 calibration tapes (with 99.2LPI is mediant; About each 10, promptly from 99.70LPI to 99.65LPI, between adjacent two calibration tapes difference 0.05LPI) test-strips; Repeat abovementioned steps, until finding the line number of grating sheet the most accurately.
Second step, planar design:
Set the resolution ratio (resolution) of image according to the line number of grating sheet; And use image processing software Adobe Photoshop to design the picture and text format of false proof card; Comprise pel (can be arbitrary graphic pattern, shape or the literal etc. of customer requirement), Background and foreground picture in the image that need be hidden in false proof card; Adjustment sets parameters such as the size, convergent-divergent, shape, color of pel, duplicates a large amount of identical pels then, carries out to neat and consistent the matrix form arrangement; The orientation of pel should be parallel to grating fringe; The pel number of unit sizes should be no more than the grid stroke number, and it is little by 2 to can be compared to the grid stroke number most, and it all is lines of a slice rule that the image after the arrangement relies on naked eyes or magnifying glass to be watched; Can't directly see in the lines pel of hiding, must just can check the pel of having hidden by camera with camera function.Be stored as the TIF file with arranging the picture and text format of the hiding pel of good need together with the false proof card that designs.
The 3rd step, plate-making:
Can directly export forme through the computer control exposure, also can export the film earlier and shine the seal carving version again.
The 4th step, printing:
Adopt the picture and text format that the conventional mode of printing of tradition (like offset printing etc.) will contain hidden primitive directly to be printed on the non-grating face of plastic cement grating sheet.
The 5th step, cross cutting are processed into false proof card.
Operation principle of the present invention is: the optical characteristics that combines grating; Handle through special image, embed hidden primitive, directly make a plate hidden image in the lump and be printed on surfaces such as false proof card, packing box, certificate; Because hiding picture and text is intentional designs; Before product came into the market, except related personnel of production company and designer, others did not know the pel content hidden.Final product; See that from the surface of printed images except Background, foreground picture can directly be seen, all the other only saw something of close and numerous, vertical moulding clocklike; Camera by having camera function is watched, the image information of hiding in just can the complete reproduction intensive vertical moulding.Consumer, work of cracking down on the fake personnel can see if there is hidden image, whether consistent with the hidden image of certified products, so just can identify the true and false of product, certificate, card card.
Claims (2)
1. the method for anti-counterfeit based on image concealing technology is characterized in that, comprises the steps:
The line number of the first step, mensuration grating sheet:
Adopt test-strips to come photometry grid line number, said test-strips is evenly distributed by some calibration tapes and forms, the high 20mm of each calibration tape, the long length that equals grating sheet; Make test-strips and save as the TIF file with Photoshop; Export on the film through laser photocomposing machine; Fit the film with grating sheet at last and aim at observation; Select one not have disconnected phenomenon, the color of cutting near whole calibration tape, with the line number of the pairing line number of this calibration tape as grating sheet;
Second step, planar design:
Set the resolution ratio of image according to the line number of grating sheet; And use image processing software to design the picture and text format of false proof card; Comprise pel, Background and foreground picture in the image that need be hidden in false proof card; Each parameter of adjustment pel is duplicated pel and proper alignment then, guarantees that the orientation of pel is parallel to grating fringe; And the pel number of unit sizes is smaller or equal to the line number of grating sheet; It all is lines of a slice rule that image after the feasible arrangement relies on naked eyes or magnifying glass to be watched, and can't directly see the pel of hiding in the lines, is stored as the TIF file with arranging the picture and text format of the hiding pel of need well together with the false proof card that designs;
The 3rd step, plate-making:
Can directly export forme through the computer control exposure, also can export the film earlier and shine the seal carving version again;
The 4th step, printing:
The picture and text format that will contain hidden primitive directly is printed on the non-grating face of plastic cement grating sheet;
The 5th step, cross cutting are processed into false proof card.
2. the method for anti-counterfeit based on image concealing technology according to claim 1 is characterized in that: the pel number of said unit sizes is littler by 2 than the line number of grating sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110366402 CN102514410B (en) | 2011-11-18 | 2011-11-18 | Anti-counterfeiting method based on image hiding technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110366402 CN102514410B (en) | 2011-11-18 | 2011-11-18 | Anti-counterfeiting method based on image hiding technology |
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| Publication Number | Publication Date |
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| CN102514410A true CN102514410A (en) | 2012-06-27 |
| CN102514410B CN102514410B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110366402 Active CN102514410B (en) | 2011-11-18 | 2011-11-18 | Anti-counterfeiting method based on image hiding technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107358567A (en) * | 2017-06-13 | 2017-11-17 | 陕西科技大学 | A kind of method that miniature information for printed matter anti-counterfeiting is amplified |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256467A (en) * | 1999-09-06 | 2000-06-14 | 广州市宝真科技开发有限公司 | Image concealing technology and product |
| CN1962287A (en) * | 2005-11-09 | 2007-05-16 | 四川大学 | Method for making multiple optical watermark |
| CN201089576Y (en) * | 2007-08-01 | 2008-07-23 | 何京泽 | Optical grating antifake package bottle cap |
| CN201145908Y (en) * | 2007-11-09 | 2008-11-05 | 天津环球磁卡股份有限公司 | Adelomorphic mark detection card |
| CN101789202A (en) * | 2010-01-13 | 2010-07-28 | 四川省宜宾五粮液集团有限公司 | Anti-fake label and manufacture method thereof |
-
2011
- 2011-11-18 CN CN 201110366402 patent/CN102514410B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256467A (en) * | 1999-09-06 | 2000-06-14 | 广州市宝真科技开发有限公司 | Image concealing technology and product |
| CN1962287A (en) * | 2005-11-09 | 2007-05-16 | 四川大学 | Method for making multiple optical watermark |
| CN201089576Y (en) * | 2007-08-01 | 2008-07-23 | 何京泽 | Optical grating antifake package bottle cap |
| CN201145908Y (en) * | 2007-11-09 | 2008-11-05 | 天津环球磁卡股份有限公司 | Adelomorphic mark detection card |
| CN101789202A (en) * | 2010-01-13 | 2010-07-28 | 四川省宜宾五粮液集团有限公司 | Anti-fake label and manufacture method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107358567A (en) * | 2017-06-13 | 2017-11-17 | 陕西科技大学 | A kind of method that miniature information for printed matter anti-counterfeiting is amplified |
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| CN102514410B (en) | 2013-08-14 |
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