CN100433059C - Certificate making and detecting method based on wavelet analysis - Google Patents
Certificate making and detecting method based on wavelet analysis Download PDFInfo
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- CN100433059C CN100433059C CNB2005100870320A CN200510087032A CN100433059C CN 100433059 C CN100433059 C CN 100433059C CN B2005100870320 A CNB2005100870320 A CN B2005100870320A CN 200510087032 A CN200510087032 A CN 200510087032A CN 100433059 C CN100433059 C CN 100433059C
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Abstract
The invention relates to a certificate manufacture and detecting method based on wavelet analysis. It includes the following steps: taking wavelet analysis to the original photo output into computer to decompose to plural images; adding encrypted digital watermark into one or several images; compounding the image by wavelet method to generate certificate photo containing digital watermark, making certificate on computer by using the photo. The detecting process includes the following steps: reading certificate information in the photo by using reading device and displaying on computer screen, taking wavelet analysis to the photo to gain several resolution graph, distilling the digital watermark to take statistics and comparing, displaying the result on computer and distinguishing whether it is faked. The invention has simple technology, and could rapidly and accurately identify.
Description
Technical field
The present invention relates to a kind of method for making and detection method of anti-fake certificate, be specifically related to a kind of electronic certificate of encrypting based on the wavelet analysis digital watermarking and make and detection method.
Background technology
For a long time, all soaring, the example of forging various certificates takes place repeatedly, has seriously damaged national interests for the production technique of certificate and the technical ability of forged certificate.For example, the passport certificate, existing false proof measure, means and mark all are " as seen ", are easy to be forged by imitated; Often adopt a kind of new false proof measure, on cost still is technology, all will pay higher cost; And the checkout equipment costliness of existing certificate, detection speed is slow.How improving the anti-counterfeit capability of certificate making, how to adopt sightless anti-counterfeiting mark, how to discern the true and false of certificate quickly and accurately, is certificate making, detection and key in application.
Publication number is to disclose a kind of digital anti-fake method in the Chinese invention patent application of CN1421814, what this application adopted is general watermark embedded technology commonly used, its embedding capacity is little, and watermark is visible, thereby still can not solve the problem that improves antifalse effect.
Wavelet analysis is the new applied mathematics branch that grows up the middle and later periods eighties 20th century, it is described as " school microscop ", having a wide range of applications in a lot of fields such as signal Processing, image analysis is worth and prospect, and its speciality mainly contains 2 points: the one, have local singularity analysis characteristic; The 2nd, have (multiple dimensioned) analytic functions of differentiating more, promptly can become signal decomposition a plurality of frequencies (yardstick) composition to be analyzed.Although a lot of at home and abroad applications of wavelet method and digital watermark technology have all been brought into play vital role, carry out certificate making and detect beyond example still with them.
Summary of the invention
There is the deficiency easily imitated, that detection speed is slow, checkout equipment is expensive in order to overcome existing certificate making and detection method, the objective of the invention is to: provide a kind of electronic certificate to make and detection method based on wavelet analysis, during certificate making, utilization multiple decomposition of small echo and wavelet reconstruction method, a definite digital watermarking that will be used for encrypting are hidden into the photo of holder or are hidden in certain detection page or leaf of certificate.This method for making technology is easy, and the certificate of making has the height anti-counterfeiting performance; Detect identification quick and precisely with this method, easy to use.
It is as follows that the present invention solves a kind of technical scheme that its technical matters adopts:
A kind of electronic certificate based on wavelet analysis is made and detection method, and described method for making comprises following steps:
(1) certificates handling people's information is made text and original photo (photo of holder or certificate base map) input computing machine;
(2) original photo is carried out wavelet decomposition, be decomposed into a plurality of figure;
(3) a string very long hidden digital watermarking is added among a certain width of cloth figure or a few width of cloth figure in (2) step;
(4) the utilization wavelet method will be schemed laminated one-tenth, generate the accreditation photo that contains digital watermarking;
(5) on computing machine and card reader, be made into electronic certificate with certificates handling people's information and the accreditation photo after the adding watermark;
Described detection method comprises following steps:
(1) reads the certificate information that comprises the accreditation photo on the electronic certificate with scanning device or inductor by computing machine, holder, certificate information and accreditation photo are presented on the computer screen;
(2) the accreditation photo on the electronic certificate is carried out wavelet decomposition, obtain some decomposition result figure;
(3) digital watermarking in adding certain layer in the electronic certificate is extracted, add up, contrast;
(4) will detect the comparative analysis result and show on computers, distinguish this result's the true and false.
The invention has the beneficial effects as follows:
1, has high anti-counterfeiting performance
Because anti-counterfeiting information of the present invention is a string very long digital watermarking, it
By wavelet analysis and synthetic after to be added in the photo be hidden, be difficult to decode, and do not influence the vision of photo, only when detecting, just manifest effect, thereby its antifalse effect is ensured that by this advanced method and technology of wavelet analysis the possibility of forgery is almost nil.
2, method for making technology is easy, detects identification fast, accurately
Method for making of the present invention all links to each other with computing machine with detection method, by using corresponding software, makes technology simple, detects by screen display, and it is very clear to tell truth from falsehood, and can carry out the identification of certificate and identity rapidly and accurately.
Description of drawings
Fig. 1 the present invention is based on the electronic certificate method for making of wavelet analysis and the process flow diagram of computer program
Fig. 2 the present invention is based on the electronic certificate detection method of wavelet analysis and the process flow diagram of computer program
Fig. 3 is the electronic certificate testing result synoptic diagram of making of the inventive method
Fig. 4 is the synoptic diagram of forged certificate testing result
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Figure 1 shows that an embodiment of the electronic certificate method for making that the present invention is based on wavelet analysis, the step of this method for making and the flow process of computer program are:
(1) photo and a certificate card of a certificates handling people of preparation are printed on certificate title and holder information on this card, with certificates handling people information and original photo input computing machine;
(2) original photo is carried out wavelet decomposition, be decomposed into multilayer figure, the original photo wavelet decomposition is 1-n layer figure among Fig. 1, and wherein (1) is ground floor figure, (k) is the k layer;
(3) digital watermarking of determined encryption is added among a certain width of cloth figure or a few width of cloth figure in (2) step;
(4) the utilization wavelet method will be schemed laminated one-tenth, generate the accreditation photo that contains digital watermarking;
(5) be made into electronic certificate on computers with certificates handling people's information and the accreditation photo after the adding watermark.
When implementing to make E-Passport, need to submit to the personal considerations to wait for information about and photo, during accreditation, by certain requirement passport information is made a text, original photo handled by the invention described above method obtain the accreditation photo, then, by the read/write card device of computing machine and connection thereof, message file and accreditation photo are write in the card (certificate).
Figure 2 shows that an embodiment of the electronic certificate detection method that the present invention is based on wavelet analysis, the step of this detection method and the flow process of computer program are:
(1) reads the certificate information that comprises the accreditation photo with scanning device or inductor fetch equipment by computing machine, certificate information and photo are presented on the computer screen;
(2) the accreditation photo on the certificate is carried out wavelet decomposition, obtain some decomposition result figure;
(3) click: " detections " menu, come out to add up, contrast the digital watermarking code extraction in add in the certificate certain layer automatically;
(4) will detect the comparative analysis result and be presented on the computer screen, distinguish this result's the true and false.If certificate is genuine, the such testing result of similar Fig. 3 then can appear; If when making, do not add watermark in the original photo or what add is not that watermark of determining, the such result of Fig. 4 then can appear being similar to.
When implementing the certificate detection: holder is come checking place, E-Passport is read in card reader, can demonstrate on computers holder and certificate for information about with the accreditation photo, click " detection ", the testing result that similar Fig. 3 or Fig. 4 can occur if be the result of similar Fig. 3, illustrates that certificate is genuine, meanwhile, acoustic notifications " correctly "; If be the result of similar Fig. 4, explanation is false, meanwhile, and audible alarm.
The inventive method not only can be applicable to electronic certificate making and false proof, also can be used for the making and the detection of other anti-fake product certificate and sign.
When product being carried out anti-counterfeit certificate and sign making, need to submit to product situation etc. for information about and picture, during making, by certain requirement product information is made a text, original image handled by the invention described above method obtain the accreditation picture, then, the read/write card device by computing machine and connection thereof writes message file and accreditation picture in product certification or the anti-false sign.
When the certificate to product detects, the product card is read in card reader, can demonstrate on computers product and certificate for information about with the accreditation picture, click " detection ", the testing result that similar Fig. 3 or Fig. 4 can occur, if be the result of similar Fig. 3, explanation is genuine, meanwhile, acoustic notifications " correctly "; If be the result of similar Fig. 4, explanation is false, meanwhile, and audible alarm.
Wavelet decomposition and small echo synthetic technology related among the present invention are prior art.
Claims (1)
1, a kind of electronic certificate based on wavelet analysis is made and detection method, and it is characterized in that: described method for making comprises following steps:
(1) certificates handling people's information is made text and original photo input computing machine;
(2) original photo is carried out wavelet decomposition, be decomposed into a plurality of figure;
(3) a string very long hidden digital watermarking is added among a certain width of cloth figure or a few width of cloth figure in (2) step;
(4) the utilization wavelet method will be schemed laminated one-tenth, generate the accreditation photo that contains digital watermarking;
(5) on computing machine and card reader, be made into electronic certificate with certificates handling people's information and the accreditation photo after the adding watermark;
Described detection method comprises following steps:
(1) reads the certificate information that comprises the accreditation photo on the electronic certificate with scanning device or inductor by computing machine, holder, certificate information and photo are presented on the computer screen;
(2) the accreditation photo on the electronic certificate is carried out wavelet decomposition, obtain some decomposition result figure;
(3) digital watermarking in adding certain layer in the electronic certificate is extracted, add up, contrast;
(4) will detect the comparative analysis result and show on computers, distinguish this result's the true and false.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100870320A CN100433059C (en) | 2005-07-25 | 2005-07-25 | Certificate making and detecting method based on wavelet analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100870320A CN100433059C (en) | 2005-07-25 | 2005-07-25 | Certificate making and detecting method based on wavelet analysis |
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| Publication Number | Publication Date |
|---|---|
| CN1904939A CN1904939A (en) | 2007-01-31 |
| CN100433059C true CN100433059C (en) | 2008-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100870320A Expired - Fee Related CN100433059C (en) | 2005-07-25 | 2005-07-25 | Certificate making and detecting method based on wavelet analysis |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101755290B (en) * | 2007-06-01 | 2012-11-28 | 卡巴-诺塔赛斯有限公司 | Authentication of security documents, in particular of banknotes |
| CN102457652A (en) * | 2010-10-18 | 2012-05-16 | 江西金格网络科技有限责任公司 | Anti-counterfeit detection method and anti-counterfeit overhaul system for document |
| CN102063660B (en) * | 2010-12-28 | 2012-09-05 | 广州商景网络科技有限公司 | Acquisition method for electronic photograph, client, server and system |
| CN102063659B (en) * | 2010-12-28 | 2012-09-05 | 广州商景网络科技有限公司 | Method, server and system for collecting and making electronic photo |
| CN104021482A (en) * | 2013-03-01 | 2014-09-03 | 成都市易恒信科技有限公司 | Certificate false-proof verification method base on identification authentication technology |
| WO2018161293A1 (en) * | 2017-03-09 | 2018-09-13 | 深圳峰创智诚科技有限公司 | Method and apparatus for generating electronic certificate |
| CN107643269B (en) * | 2017-08-31 | 2020-02-04 | 深圳市中达瑞和科技有限公司 | Cross handwriting time sequence identification method, system and computing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254230A (en) * | 1998-07-01 | 2000-05-24 | 三星电子株式会社 | Digital image coding/decoding device using watermark and its method |
| CN1257585A (en) * | 1997-05-20 | 2000-06-21 | Adc电信股份公司 | Optical fiber connector and adapter |
| CN1421814A (en) * | 2001-11-30 | 2003-06-04 | 温天 | Digital anti-fake method |
| CN1512438A (en) * | 2002-12-30 | 2004-07-14 | 北京邮电大学 | File anti-fake method and its device based on digital water print |
-
2005
- 2005-07-25 CN CNB2005100870320A patent/CN100433059C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257585A (en) * | 1997-05-20 | 2000-06-21 | Adc电信股份公司 | Optical fiber connector and adapter |
| CN1254230A (en) * | 1998-07-01 | 2000-05-24 | 三星电子株式会社 | Digital image coding/decoding device using watermark and its method |
| CN1421814A (en) * | 2001-11-30 | 2003-06-04 | 温天 | Digital anti-fake method |
| CN1512438A (en) * | 2002-12-30 | 2004-07-14 | 北京邮电大学 | File anti-fake method and its device based on digital water print |
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| CN1904939A (en) | 2007-01-31 |
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