WO2020237881A1

WO2020237881A1 - Method and apparatus for injecting anti-counterfeit information, computer device, and storage medium

Info

Publication number: WO2020237881A1
Application number: PCT/CN2019/103453
Authority: WO
Inventors: 肖玉宾; 杨将
Original assignee: 平安科技（深圳）有限公司
Priority date: 2019-05-31
Filing date: 2019-08-29
Publication date: 2020-12-03
Also published as: CN110335189B; CN110335189A

Abstract

A method for injecting anti-counterfeit information, comprising: according to a preset QR code rule, generating anti-counterfeit information into a QR code (S1); acquiring an array corresponding to the QR code, the array being composed by arranging a plurality of digits (S2); sequentially hiding each digit in a preset image according to a preset rule (S3); and displaying the preset image carrying the anti-counterfeit information (S4). In the described method, by means of generating anti-counterfeit information into a QR code and hiding same in a preset image, the anti-counterfeit information is hidden and protected.

Description

Method, device, computer equipment and storage medium for adding anti-counterfeiting information

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on May 31, 2019 with the application number 201910470652.4 and the invention title "Methods, devices, computer equipment and storage media for adding anti-counterfeiting information". The reference is incorporated in this application.

Technical field

This application relates to the field of computers, in particular to methods, devices, computer equipment and storage media for adding anti-counterfeiting information.

Background technique

Existing documents are information products protected by copyright, providing complete and reliable evidence of attribution, and are often processed with watermarks. Watermarking is to add some digital information to data multimedia (such as images, sounds, video signals, etc.) to achieve functions such as authenticity identification and copyright protection. The embedded watermark information is hidden in the host document and does not affect the observability and integrity of the original document. However, the watermark algorithm can identify the owner's anti-counterfeiting information embedded in the protected object (such as registered user numbers, product logos, or meaningful text, etc.), and can extract and destroy the anti-counterfeiting information when needed. Watermark can be used to judge whether the object is protected, and can monitor the spread of protected data, authenticity identification, and illegal copy control. But at present, the attacker can completely destroy the watermark in the document, or copy a theoretically existing "original watermark". At present, the airspace watermark method of the document can be clearly identified by the naked eye, so the anti-counterfeiting information is easy to be imitated and counterfeited. As a result, the owner of the document cannot convincingly provide valid evidence of copyright ownership.

technical problem

The main purpose of this application is to provide a method for adding anti-counterfeiting information, which aims to solve the technical problem that the existing watermark anti-counterfeiting information is easily counterfeited and destroyed.

Technical solutions

This application proposes a method for adding anti-counterfeiting information, including:

Generate a QR code based on the anti-counterfeiting information according to the preset QR code rules;

Get the array corresponding to the QR code, where the array is composed of multiple numbers;

Each number is sequentially hidden in a preset picture according to preset rules, where the preset picture is a picture that needs to be added with anti-counterfeiting information;

Display a preset picture with anti-counterfeiting information.

This application also provides a device for adding anti-counterfeiting information, including:

A generating module for generating a QR code from the anti-counterfeiting information according to a preset QR code rule;

The first obtaining module is used to obtain an array corresponding to the two-dimensional code, where the array is composed of multiple numbers;

The hiding module is used to hide each number in a preset picture in sequence according to a preset rule, where the preset picture is a picture that needs to be added with anti-counterfeiting information;

The display module is used to display a preset picture carrying anti-counterfeiting information.

The present application also provides a computer device, including a memory and a processor, the memory stores a computer program, and the processor implements the steps of the foregoing method when the computer program is executed.

The present application also provides a computer-readable storage medium on which a computer program is stored, and the computer program is executed by a processor to realize the steps of the above method.

Beneficial effect

This application generates a two-dimensional code from the anti-counterfeiting information, and hides the numbers corresponding to the two-dimensional code in a preset picture in order of arrangement to realize the protection of the anti-counterfeiting information. Compared with the existing watermark anti-counterfeiting technology, this solution The anti-counterfeiting information can be hidden in the preset picture, which is not easy to detect, and the ownership of the preset picture can be protected to the greatest extent, and the anti-counterfeiting information is not easy to be counterfeited. This application hides the numbers corresponding to the anti-counterfeiting information in the fragments containing the preset pixel area, and the fragments that do not contain the preset pixel area are not used to hide the numbers, which is convenient for analyzing the anti-counterfeiting information and easily obtain the corresponding by identifying the preset pixel area. The hidden digits are restored to a QR code, and the corresponding anti-counterfeiting information can be obtained by parsing the QR code. The first preset spacing on which the line cutting of this application is based is the line spacing of the text. The second preset spacing is a preset spacing distance perpendicular to the longitudinal direction of the line, which is smaller than the character spacing of the text. In this application, the requirement of greater than the second preset spacing will be slit at the interval, even if there is a space greater than the second preset spacing in the same character in the longitudinal direction perpendicular to the line, it will also be slit. The concealment of the cutting law is not easy to detect, and the uneven partition of the preset picture is realized. The partition size is different, and the cutting law is more concealed. It is not easy for counterfeiters to extract anti-counterfeiting information, and it is not easy to be counterfeited or destroyed.

Description of the drawings

FIG. 1 is a schematic flowchart of a method for adding anti-counterfeiting information according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a device for adding anti-counterfeiting information according to an embodiment of the present application;

Fig. 3 is a schematic diagram of the internal structure of a computer device according to an embodiment of the present application.

The best mode of the invention

1, the method for adding anti-counterfeiting information according to an embodiment of the present application includes:

S1: Generate a QR code based on the anti-counterfeiting information according to a preset QR code rule.

The anti-counterfeiting information in this embodiment includes text password information, digital passwords, logo images and any other information that can generate a two-dimensional code. The above-mentioned preset QR code rules vary according to the type of anti-counterfeiting information, but the preset QR code rules include at least three parts: the positioning pattern of the QR code, the function data of the QR code, and the content of the QR code data, so as to be based on the preset The QR code rules generate corresponding QR codes. The two-dimensional code technology is similar to the existing two-dimensional code generation process and will not be repeated. The two-dimensional code of this embodiment can store more anti-counterfeiting information, and by converting the anti-counterfeiting information into a two-dimensional code, the integrity of the anti-counterfeiting information can be guaranteed. There are 40 sizes of QR codes, and the unit size is named Version. Version has a linear relationship. For example, Version 1 is a 21×21 matrix, and Version 2 is a 25×25 matrix. Each time you add a Version, the size will increase by 4. The maximum value of Version is 40, so the maximum size of the QR code is (40 -1)*4+21= 177, which is 177 x 177 matrix.

S2: Obtain an array corresponding to the two-dimensional code, where the array is composed of multiple numbers.

In this embodiment, the two-dimensional code is parsed into an array of binary numbers 0 and/or 1, and the array is sorted according to a specified sorting rule, for example, the two-dimensional code is parsed sequentially from left to right and top to bottom. The black pattern corresponds to 1, and the white pattern corresponds to 0, so that the two-dimensional code can be parsed into a binary array.

S3: Each number is hidden in a preset picture in sequence according to a preset rule, where the preset picture is a picture to which anti-counterfeiting information needs to be added.

S4: Display a preset picture carrying anti-counterfeiting information.

In this embodiment, the digits corresponding to the two-dimensional code are sequentially hidden in the preset picture in the order of arrangement, so as to realize the hiding protection of the anti-counterfeiting information. For example, the anti-counterfeiting information of this embodiment can form a corresponding two-dimensional code. By hiding and protecting the anti-counterfeiting information, compared with the existing watermark anti-counterfeiting technology, this solution can hide the anti-counterfeiting information in a preset picture, which is not easy to detect. The ownership of the preset pictures can be protected to the utmost extent and is not easy to be counterfeited. The preset pictures with anti-counterfeiting information and the original preset pictures cannot be distinguished directly from the surface when printed, and the anti-counterfeiting information is not easy to be counterfeited or destroyed. The aforementioned preset pictures include product pictures, data pictures, contract document pictures, etc.

Further, the preset picture is formed by splicing a specified number of fragments, and the step S3 of sequentially hiding each number in the preset picture according to a preset rule includes:

S31: Determine in sequence according to a preset order whether the first fragment includes a preset pixel area, wherein the first fragment is included in a specified number of fragments.

The preset picture in this embodiment is formed by splicing fragments, which means that the preset picture is divided into multiple small partitions through virtual fragments. The number of the above-mentioned partitions is greater than or equal to the total number of corresponding numbers in the array, so that the number and the fragments are the same. Matching the one, it is convenient to hide the numbers in the picture orderly, and it is convenient to manage the hidden array. In this embodiment, the numbers are hidden in the fragments containing the preset pixel area, and the fragments that do not contain the preset pixel area are not used to hide the numbers. It is convenient to obtain the corresponding hidden numbers by identifying the preset pixel area when analyzing the anti-counterfeiting information. And restore it to a two-dimensional code, and obtain the corresponding anti-counterfeiting information by analyzing the two-dimensional code. The above-mentioned preset pixel area includes a pixel matrix of a specified size, which can satisfy the pixel matrix contained in basically every fragment or most fragments, so as to meet the purpose of hiding numbers through fragments and facilitating management of hidden numbers. For example, a 3×3 pixel matrix, a 5×5 pixel matrix, etc., the preset pixel area can be implemented in a preset manner.

S32: If the first fragment includes the preset pixel area, the first fragment is included in the sorting, and the first sorting is formed according to the preset order according to the position of each first fragment in the preset picture.

In this embodiment, according to the position of the first fragment in the preset picture, the preset sequence from left to right and top to bottom is used to determine whether there is a preset pixel area in each fragment. If so, the fragment is included in the first In a sorting, in order to hide the numbers in the array according to the first sorting order. The first sort in this embodiment is sorted by the coordinate data of each first fragment in the preset picture, for example, the third fragment in the first row of slices corresponds to the sequence number 3 in the first sort; it is located in the first row The fifth fragment in the slice corresponds to the sequence number 4 in the first sort, and the third fragment in the first row of slices is the coordinate data of the first fragment in the preset picture. The function of "first" in the above "first fragment" is different from the "third" in "third fragment", and the "first" in the above "first fragment" is only used for distinction and not for limitation. Similar terms in other places have the same effect, so I won’t repeat them.

S33: Obtain the sequence number of the first fragment in the first sort.

S34: Obtain the first number in the corresponding sequence number in the array according to the sequence number.

This embodiment obtains the serial numbers of the fragments in the first sorting, and then forms a one-to-one correspondence according to the preset correspondence between the serial numbers and the number sorting, so as to realize the orderly hiding of numbers, facilitate management and extraction, and improve the reliability of anti-counterfeiting information. consistency. For example, the preset correspondence relationship is that the same-direction order corresponds to the numerical order in the array one-to-one, that is, all have one-to-one correspondence from small to large, and the fragment numbers 1 to 100 form the first order from small to large; the above-mentioned numerical order is an array The sequence of numbers formed from left to right in the middle, that is, the fragment numbers 1 to 100 form the first order, and the numbers in the corresponding array are ordered from 1 to 100, that is, the fragment with the fragment number 1 hides the first number in the array, the fragment number The second digit in the array is hidden for the fragments of 2, and so on, so that a corresponding digit is hidden in each fragment. In other embodiments of the present application, the preset correspondence relationship is that the reverse order corresponds to the numerical order in the array one by one, that is, the first order of the fragments is from small to large, and the first order of fragments corresponds to the numerical order from large to small. , That is, the numbers in the array are hidden in each fragment in reverse order, increasing the difficulty of obtaining anti-counterfeiting information from the fragments, and increasing the difficulty coefficient of destroying the anti-counterfeiting information.

S35: Hide the first number in the preset pixel area in the first fragment.

In this embodiment, by changing the pixel characteristic value of the corresponding preset pixel area, the identification of different numbers is realized, for example, a full black pixel matrix of a specified size is selected, corresponding to the identification number 0, and some pixels in the full black pixel matrix are selected. The dot is changed to white to correspond to the identification number 1, so that all the binary numbers corresponding to the array can be hidden in each fragment through the above-mentioned change law of the pixel characteristic value. The fragments above include at least one preset pixel area. If multiple preset pixel areas are included, the first preset pixel area in the fragment is selected in the order from left to right and top to bottom. The preset pixel area is used to hide a corresponding number. In other embodiments of the present application, the digital symbol itself can also be photoprinted on the preset pixel area to realize hiding. For example, the corresponding pixels of the first grid in the preset pixel area are changed from black to white, and the anti-counterfeiting information or encrypted information is copied in black font on the first grid, where the first grid is in the preset pixel area Any one of all corresponding grids.

Further, before step S31 of sequentially determining whether the first fragment contains the preset pixel area according to the preset order, the method includes:

S30a: Cutting the preset picture uniformly and parallelly along the first direction according to the first preset spacing to form multiple lines of pictures, and performing first encoding on each line of pictures according to the number of lines of each line of pictures in the preset picture.

S30b: Cut each row of pictures in the second direction according to the second preset interval to form fragments, and perform a second encoding on each fragment according to the arrangement order of the fragments in the row picture, wherein the first direction and the second direction are mutually vertical.

S30c: According to the first code and the second code, a coordinate code corresponding to each fragment is formed.

The fragments in this embodiment are virtual partitions of a preset picture, that is, the preset picture is formed into a partition through virtual cutting according to a preset rule. In this embodiment, the preset picture is divided into multiple rectangular partitions by row cutting and vertical cutting perpendicular to the row direction, and the row and column sort numbers of the fragments are identified as the coordinate coding of each fragment so as to pass the coordinates Encoding directly restores the splicing of fragments to the preset picture. There is no direct limitation on the size relationship between the first preset distance and the second preset distance, but the first preset distance and the second preset distance are kept unchanged during cutting, so that the preset pictures can be ordered and ordered. Regular partitions.

Further, the preset picture is a text picture, the first preset spacing is the line spacing in the text picture, and the second preset spacing is the word spacing of two adjacent characters in the same line in the text picture, according to the second preset spacing The step S30b of cutting each row of pictures along the second direction to form fragments, and performing the second encoding on each fragment according to the arrangement order of each fragment in the row picture, includes:

S301: Identify the first interval between two adjacent characters according to the second preset interval.

S302: Cut two adjacent characters from the first interval in a direction perpendicular to the line to form fragments, and sort the fragments according to the position of each fragment in the line picture, and perform the second encoding on each fragment.

The preset picture in this embodiment is a text picture, that is, the preset picture is a picture formed by a text file, including large paragraphs of text text. The first preset spacing on which the line cutting in this embodiment is based is the line spacing of the text. The second preset spacing in this embodiment is the word spacing between two adjacent characters in the same line of the text picture. Each word in the text is correspondingly cut into fragments through line cutting and longitudinal cutting, so as to realize the comparison of the preset picture Evenly partition, the partition size is the same.

Further, the preset picture is a text picture, the first preset spacing is the line spacing in the text picture, and each line of the picture is cut in the second direction according to the second preset spacing to form fragments, and each fragment is located in the line picture according to the Arranging the order, the step S30b of performing the second encoding on each fragment includes:

S303: Determine whether the second interval between two adjacent characters and the third interval within the characters are greater than the second preset interval;

S304: If it is greater than, cut two adjacent characters in the direction perpendicular to the line from the second interval, and cut the same character in the direction perpendicular to the line from the third interval to form fragments and according to each fragment Sorting in line pictures, and performing a second encoding on each fragment.

In this embodiment, the second preset spacing perpendicular to the longitudinal direction of the line is smaller than the character spacing of the text. In this embodiment, at intervals greater than the second preset interval, slitting will be performed at the intervals, even if there are intervals greater than the second preset interval in the same word in the longitudinal direction perpendicular to the line. It will be longitudinally cut, and the cutting law is not easy to detect. It realizes uneven partitioning of the preset pictures. The partition size is different, and the cutting law is more hidden. For example, "Zhen" corresponds to three to four fragments after longitudinal cutting. For example, after the line is cut, a line of text is "Central District Co., Ltd.", and the fragments formed by slitting are one fragment corresponding to "中", two fragments corresponding to "Heart", one fragment corresponding to "Zone", " "Yes" corresponds to one fragment, "Limit" corresponds to two fragments, "Gong" corresponds to one fragment, and "Division" corresponds to one fragment. "Heart" and "Limit" are divided into two fragments longitudinally from the space because the characters include a space larger than the second preset distance.

Further, the preset pictures are cut uniformly and parallelly along the first direction according to the first preset interval to form multiple rows of pictures, and according to the number of rows of each row of pictures in the preset picture, before step S30a of first encoding each row of pictures ,include:

S30d: Determine whether the text to be added with the anti-counterfeiting information is in a picture format.

S30e: If the text to be added with the anti-counterfeiting information is not in a picture format, the file to be encrypted is converted into a picture format according to a preset conversion method to form a text picture.

The document to be encrypted in this embodiment is a document planned to be added with anti-counterfeiting information through anti-counterfeiting, such as a text data file such as a contract document, and the format of the above text data file needs to be converted into a picture format. If the above-mentioned text data file is in Word or Excel format, convert it to picture format through PDF conversion.

Further, the preset pixel area is an all black pixel matrix with a preset matrix size, and the numbers include binary numbers 0 and/or 1. The step S35 of hiding the first number in the preset pixel area in the first fragment includes:

S351: Determine whether the first number is 1.

S352: If the first number is 1, convert the pixel value of the center point of the all-black pixel matrix into the pixel value corresponding to the white pixel, and mark 1.

S353: If the first number is not 1, it is determined as 0, and the all black pixel matrix is marked as 0.

The preset matrix size in this embodiment is 3×3, and the preset pixel area is a 3×3 all-black pixel matrix, which includes a 9-square-distributed all-black pixel area and contains fragments of the aforementioned 3×3 all-black pixel matrix. Fragments for hidden numbers. If the corresponding hidden number in the current number sorting is 1, then the black pixel value of the center grid in the 9th grid will be converted into a white pixel value, such as converting 255*255*255 to 0*0*0 to achieve black pixels The value is converted to a white pixel value. By changing the pixel feature value corresponding to the preset pixel area, the identification and hiding of the number 1 and the number 0 are realized.

Further, after step S3 of sequentially hiding each number in the preset picture according to the preset rule, it includes:

S4: Obtain the first picture added with the anti-counterfeiting information.

S5: Form the first picture into fragments according to a preset cutting rule.

S6: Extract hidden numbers from the fragments in order to form the first array.

S7: Convert the first array into a specified QR code.

S8: Identify the anti-counterfeiting information corresponding to the specified QR code.

This embodiment also provides the process of extracting the anti-counterfeiting information from the first picture with the anti-counterfeiting information, which is reciprocal to the above hiding process, including the fragmentation process of the same principle, and obtaining the hidden numbers from the fragments, and forming the first image in the order of extraction. Array, and convert the first array into a designated two-dimensional code, and obtain the orientation mark by solving the designated two-dimensional code. The above process of obtaining hidden numbers from fragments is inverse to the process of hidden numbers, such as identifying whether there is a 3×3 all-black pixel matrix or a 3×3 matrix with white pixel values at the center of the fragment, and if so, record the findings in turn The order is used as the arrangement order of the numbers in the array, and the 3×3 all black pixel matrix is counted as number 1, and the 3×3 center point is the white pixel value matrix as 0. The process of decoding the designated two-dimensional code in this embodiment can be symmetrically encrypted by AES (Advanced Encryption Standard, Advanced Encryption Standard) to improve security. The process of obtaining anti-counterfeiting information from the designated two-dimensional code in this embodiment is fault-tolerant, and the anti-counterfeiting information can still be obtained correctly even when the number within 30% is lost.

In this embodiment, the anti-counterfeiting information is generated by generating a two-dimensional code, and the numbers corresponding to the two-dimensional code are sequentially hidden in the preset picture in the order of arrangement, so as to realize the hiding protection of the anti-counterfeiting information. Compared with the existing watermark anti-counterfeiting technology, this The solution can hide the anti-counterfeiting information in the preset picture, which is not easy to detect, can protect the ownership of the preset picture to the greatest extent, and the anti-counterfeiting information is not easy to be counterfeited. In this embodiment, the numbers corresponding to the anti-counterfeiting information are respectively hidden in the fragments containing the preset pixel area, and the fragments not containing the preset pixel area are not used to hide the numbers, which is convenient for analyzing the anti-counterfeiting information by identifying the preset pixel area. The corresponding hidden number is restored to a two-dimensional code, and the corresponding anti-counterfeiting information is obtained by parsing the two-dimensional code. The first preset spacing on which the line cutting in this embodiment is based is the line spacing of the text. The second preset spacing is a preset spacing distance perpendicular to the longitudinal direction of the line, which is smaller than the character spacing of the text. In this embodiment, the requirement of greater than the second preset pitch will be slit at the interval, even if there is a space greater than the second preset interval in the same word in the longitudinal direction perpendicular to the line, it will also be slit. , The cutting law is not easy to detect, and the uneven partition of the preset picture is realized. The partition size is different, and the cutting law is more concealed. It is not easy for counterfeiters to extract anti-counterfeiting information, and it is not easy to be counterfeited or destroyed.

2, the device for adding anti-counterfeiting information according to an embodiment of the present application includes:

The generating module 1 is used to generate a two-dimensional code from the anti-counterfeiting information according to a preset two-dimensional code rule.

The anti-counterfeiting information in this embodiment includes text password information, digital passwords, logo images and any other information that can generate a two-dimensional code. The above-mentioned preset QR code rules vary according to the type of anti-counterfeiting information, but the preset QR code rules include at least three parts: the positioning pattern of the QR code, the function data of the QR code, and the content of the QR code data, so as to be based on the preset The QR code rules generate corresponding QR codes. The two-dimensional code technology is similar to the existing two-dimensional code generation process and will not be repeated. The two-dimensional code of this embodiment can store more anti-counterfeiting information, and by converting the anti-counterfeiting information into a two-dimensional code, the integrity of the anti-counterfeiting information can be guaranteed. There are 40 sizes of QR codes, and the unit size is also named Version (variant). Version has a linear relationship. For example, Version 1 is a 21×21 matrix, and Version 2 is a 25×25 matrix. Each time you add a Version, the size will increase by 4. The maximum value of Version is 40, so the maximum size of the QR code is (40 -1)*4+21= 177, which is 177 x 177 matrix.

The first obtaining module 2 is used to obtain an array corresponding to the two-dimensional code, where the array is composed of multiple numbers.

The hiding module 3 is used to hide each number in a preset picture in sequence according to a preset rule, where the preset picture is a picture that needs to be added with anti-counterfeiting information.

Further, the hidden module 3 includes:

The first judging unit is configured to sequentially judge whether the first fragment contains the preset pixel area according to the preset order, wherein the first fragment is contained in a specified number of fragments.

The first forming unit is configured to, if the first fragments include the preset pixel area, count the first fragments into the sorting, and form the first sorting according to the preset order according to the position of each first fragment in the preset picture.

The first acquiring unit is configured to acquire the serial number of the first fragment in the first sorting.

The second acquiring unit is used to acquire the first number in the corresponding serial number in the array according to the serial number.

The hiding unit is used to hide the first number in the preset pixel area in the first fragment.

Further, the hidden module 3 includes:

The second forming unit is configured to cut the preset picture uniformly and parallelly along the first direction according to the first preset pitch to form multiple lines of pictures, and perform first encoding on each line of pictures according to the number of lines of each line of pictures in the preset picture .

The third forming unit is used to cut each row of pictures in a second direction according to a second preset interval to form fragments, and perform a second encoding on each fragment according to the arrangement order of each fragment in the row picture, wherein the first direction It is perpendicular to the second direction.

The fourth forming unit is used to form coordinate codes corresponding to each fragment according to the first code and the second code.

Further, the preset picture is a text picture, the first preset spacing is the line spacing in the text picture, the second preset spacing is the word spacing of two adjacent characters in the same line in the text picture, and the third forming unit includes :

The recognition subunit is used to recognize the first interval between two adjacent characters according to the second preset interval.

The first cutting subunit is used for cutting two adjacent characters from the first interval in a direction perpendicular to the line to form fragments, and sorting the fragments according to the position of each fragment in the line picture, and performing the second encoding on each fragment.

Further, the preset picture is a text picture, the first preset spacing is the line spacing in the text picture, and the third forming unit includes:

The first determining subunit is used to determine whether the second interval between two adjacent characters and the third interval within the characters are greater than the second preset interval;

The second cutting subunit is used for if the second interval between two adjacent characters and the third interval within the characters are greater than the second preset interval, then the two adjacent characters are perpendicular to the line from the second interval Cut the same text from the third interval in the direction perpendicular to the line to form fragments and sort the fragments according to their location in the line picture, and perform the second encoding on each fragment.

Further, the hidden module 3 includes:

The second determining unit is used to determine whether the text to be added with the anti-counterfeiting information is in a picture format.

The conversion unit is configured to, if the text to be added with the anti-counterfeiting information is not in a picture format, convert the to-be-encrypted file into a picture format according to a preset conversion method to form a text picture.

The file to be encrypted in this embodiment is a file planned to be added with anti-counterfeiting information, such as a text data file such as a contract document, and the format of the above text data file needs to be converted into a picture format. If the above-mentioned text data file is in Word or Excel format, convert it to picture format through PDF conversion.

Further, the preset pixel area is an all black pixel matrix with a preset matrix size, the numbers include binary numbers 0 and/or 1, and the hidden unit includes:

The second judgment subunit is used to judge whether the first number is 1.

The first marking subunit is used for converting the pixel value of the center point of the all-black pixel matrix into the pixel value corresponding to the white pixel if the first number is 1, and marking 1.

The second marking subunit is used to mark the all-black pixel matrix as 0 if the first number is not 1, then it is determined as 0.

Further, the device for adding anti-counterfeiting information includes:

The second acquiring module is used to acquire the first picture added with the anti-counterfeiting information.

The cutting module is used to form the first picture into fragments according to a preset cutting rule.

The extraction module is used to sequentially extract hidden numbers from the fragments to form the first array.

The conversion module is used to convert the first array into a specified two-dimensional code.

The identification module is used to identify the anti-counterfeiting information corresponding to the specified QR code.

This embodiment also provides the process of extracting the anti-counterfeiting information from the first picture with the anti-counterfeiting information, which is reciprocal to the above hiding process, including the fragmentation process of the same principle, and obtaining the hidden numbers from the fragments, and forming the first image in the order of extraction. Array, and convert the first array into a designated two-dimensional code, and obtain the orientation mark by solving the designated two-dimensional code. The above process of obtaining hidden numbers from fragments is inverse to the process of hidden numbers, such as identifying whether there is a 3×3 all-black pixel matrix or a 3×3 matrix with white pixel values at the center of the fragment, and if so, record the findings in turn The order is used as the arrangement order of the numbers in the array, and the 3×3 all black pixel matrix is counted as number 1, and the 3×3 center point is the white pixel value matrix as 0. The process of de-assigning the two-dimensional code in this embodiment can be symmetrically encrypted by AES to improve security. The process of obtaining anti-counterfeiting information from the designated two-dimensional code in this embodiment is fault-tolerant, and the anti-counterfeiting information can still be obtained correctly even when the number within 30% is lost.

3, an embodiment of the present application also provides a computer device. The computer device may be a server, and its internal structure may be as shown in FIG. 3. The computer equipment includes a processor, a memory, a network interface and a database connected through a system bus. Among them, the computer designed processor is used to provide calculation and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database of the computer equipment is used to store all the data required for the process of adding anti-counterfeiting information. The network interface of the computer device is used to communicate with an external terminal through a network connection. The computer program is executed by the processor to realize the method of adding anti-counterfeiting information. Those skilled in the art can understand that the structure shown in FIG. 3 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied.

An embodiment of the present application further provides a computer non-volatile readable storage medium, on which computer readable instructions are stored, and when the computer readable instructions are executed, the processes as in the foregoing method embodiments are executed. The above are only the preferred embodiments of this application, and do not limit the scope of this application. Any equivalent structure or equivalent process transformation made using the content of this application description and drawings, or directly or indirectly applied to other related The technical field is equally included in the scope of patent protection of this application.

Claims

A method for adding anti-counterfeiting information, characterized in that it comprises:

Generate a QR code based on the anti-counterfeiting information according to the preset QR code rules;

Acquiring an array corresponding to the two-dimensional code, where the array is composed of multiple numbers;

Hiding each of the numbers in a preset picture in sequence according to a preset rule, where the preset picture is a picture to which the anti-counterfeiting information needs to be added;

Display the preset picture carrying the anti-counterfeiting information.
The method for adding anti-counterfeiting information according to claim 1, wherein the preset picture is formed by splicing a specified number of fragments, and each of the numbers is sequentially hidden in the preset picture according to preset rules. The steps include:

Sequentially determining whether the first fragment includes a preset pixel area according to a preset order, wherein the first fragment is included in the specified number of fragments;

If the first fragment includes the preset pixel area, then the first fragments are counted in the sorting, and the first fragments are formed according to the position of each first fragment in the preset picture according to the preset order. A sort

Acquiring the serial number of the first fragment in the first sort;

Obtaining the first number in the corresponding sequence number in the array according to the sequence number;

The first number is hidden in a preset pixel area in the first fragment.
The method for adding anti-counterfeiting information according to claim 2, characterized in that, before the step of sequentially determining whether the first fragment contains a preset pixel area according to a preset order, it comprises:

Cut the preset picture uniformly in parallel along the first direction according to the first preset pitch to form multiple rows of pictures, and perform first encoding on each row of pictures according to the number of rows of each row of pictures in the preset picture ；

Cut each of the line pictures in a second direction according to a second preset interval to form the fragments, and perform a second encoding on each of the fragments according to the arrangement order of the fragments in the line pictures, wherein , The first direction and the second direction are perpendicular to each other;

According to the first code and the second code, a coordinate code corresponding to each of the fragments is formed.
The method for adding anti-counterfeiting information according to claim 3, wherein the preset picture is a text picture, the first preset spacing is the line spacing in the text picture, and the second preset The spacing is the character spacing between two adjacent characters in the same line of the text picture, and each line of pictures is cut in a second direction according to a second preset spacing to form the fragments, and according to each fragment The step of performing a second encoding on each of the fragments according to the arrangement order in the line picture includes:

Identifying the first interval between two adjacent characters according to the second preset distance;

Cut two adjacent characters from the first interval in a direction perpendicular to the line to form the fragments, and sort the fragments according to the position of each fragment in the line picture, and perform a second encoding on each fragment .
The method for adding anti-counterfeiting information according to claim 3, wherein the preset picture is a text picture, the first preset spacing is the line spacing in the text picture, and the second preset The step of cutting each of the line pictures along the second direction by setting a pitch to form the fragments, and performing a second encoding on each of the fragments according to the arrangement order of the fragments in the line pictures includes:

Determine whether the second interval between two adjacent characters and the third interval within the characters are greater than the second preset interval;

If it is greater than, cut two adjacent characters in the direction perpendicular to the line from the second interval, and cut the same character in the direction perpendicular to the line from the third interval to form the fragments The second coding is performed on each of the fragments according to the sorting of the fragments located in the line picture.
The method for adding anti-counterfeiting information according to claim 5, wherein the preset picture is uniformly and parallelly cut along a first direction according to a first preset interval to form a plurality of rows of pictures, and according to the position of each row of pictures The number of lines in the preset picture, before the step of performing the first encoding on each line picture, includes:

Determine whether the text to be added with anti-counterfeiting information is in picture format;

If not, the file to be encrypted is converted into a picture format according to a preset conversion method to form the text picture.
The method for adding anti-counterfeiting information according to claim 2, wherein the preset pixel area is an all black pixel matrix with a preset matrix size, and the numbers include binary numbers 0 and/or 1, and the The step of hiding the first number in the preset pixel area in the first fragment includes:

Determine whether the first number is 1;

If the first number is 1, the pixel value of the center point of the all-black pixel matrix is converted into the pixel value corresponding to the white pixel, which is marked with 1;

If the first number is not 1, it is determined as 0, and the all black pixel matrix is marked as 0.
A device for adding anti-counterfeiting information is characterized in that it comprises:

A generating module for generating a QR code from the anti-counterfeiting information according to a preset QR code rule;

The first obtaining module is configured to obtain an array corresponding to the two-dimensional code, wherein the array is composed of multiple numbers;

A hiding module, configured to hide each number in a preset picture in sequence according to preset rules, where the preset picture is a picture that needs to be added with the anti-counterfeiting information;

The display module is used to display a preset picture carrying the anti-counterfeiting information.
The device for adding anti-counterfeiting information according to claim 8, wherein the hiding module comprises:

The first determining unit is configured to sequentially determine whether the first fragment includes a preset pixel area according to a preset order, wherein the first fragment is included in the specified number of fragments;

The first forming unit is configured to, if the first fragments include the preset pixel area, count the first fragments in the sorting order, and according to the position of each of the first fragments in the preset picture , Forming the first order according to the preset order;

The first obtaining unit is configured to obtain the serial number of the first fragment in the first sorting;

The second acquiring unit is configured to acquire the first number in the corresponding serial number in the array according to the serial number;

The hiding unit is used to hide the first number in a preset pixel area in the first fragment.
The device for adding anti-counterfeiting information according to claim 9, wherein the hiding module comprises:

The second forming unit is configured to cut the preset picture uniformly and parallelly along the first direction according to the first preset pitch to form multiple rows of pictures, and perform the calculation of each row of pictures according to the number of rows in the preset picture. Perform first encoding on the walk picture;

The third forming unit is configured to cut each of the line pictures in a second direction according to a second preset interval to form the fragments, and according to the arrangement order of the fragments in the line pictures, the The fragments are subjected to a second encoding, wherein the first direction and the second direction are perpendicular to each other;

The fourth forming unit is configured to form coordinate codes corresponding to each of the fragments according to the first code and the second code.
The device for adding anti-counterfeiting information according to claim 10, wherein the preset picture is a text picture, the first preset spacing is a line spacing in the text picture, and the second preset The spacing is the spacing between two adjacent characters in the same line of the text picture, and the third forming unit includes:

An identifying subunit, configured to identify the first interval between two adjacent characters according to the second preset interval;

The first cutting subunit is used to cut two adjacent characters from the first interval in a direction perpendicular to the line to form the fragments, and sort the fragments according to where each fragment is located in the line picture, Each of the fragments is subjected to a second encoding.
The method for adding anti-counterfeiting information according to claim 10, wherein the preset picture is a text picture, the first preset spacing is the line spacing in the text picture, and the third forming unit ,include:

The first judging subunit is used for judging whether the second interval between two adjacent characters and the third interval within the characters are greater than the second preset interval;

The second cutting subunit is used for cutting two adjacent characters along the direction perpendicular to the line from the second interval, if larger than the Cutting in the direction, forming the fragments and sorting according to the position of each fragment in the line picture, and performing a second encoding on each fragment.
The device for adding anti-counterfeiting information according to claim 12, wherein the hiding module comprises:

The second judgment unit is used to judge whether the text to be added with the anti-counterfeiting information is in a picture format;

The conversion unit is configured to, if not, convert the file to be encrypted into a picture format according to a preset conversion method to form the text picture.
The device for adding anti-counterfeiting information according to claim 9, wherein the preset pixel area is an all black pixel matrix with a preset matrix size, the numbers include binary numbers 0 and/or 1, and the hidden Unit includes:

The second judgment subunit is used to judge whether the first number is 1;

The first marking subunit is used to convert the pixel value of the center point of the all black pixel matrix into the pixel value corresponding to the white pixel if the first number is 1, and mark 1;

The second marking subunit is used for marking the all-black pixel matrix as 0 if the first number is not 1, then determining as 0.
A computer device includes a memory and a processor, the memory stores a computer program, and is characterized in that, when the processor executes the computer program, a method for adding anti-counterfeiting information is realized, and the method for adding anti-counterfeiting information includes:

Generate a QR code based on the anti-counterfeiting information according to the preset QR code rules;

Acquiring an array corresponding to the two-dimensional code, where the array is composed of multiple numbers;

Hiding each of the numbers in a preset picture in sequence according to a preset rule, where the preset picture is a picture to which the anti-counterfeiting information needs to be added;

Display the preset picture carrying the anti-counterfeiting information.
The computer device according to claim 15, wherein the preset picture is formed by splicing a specified number of fragments, and the step of hiding each of the numbers in the preset picture according to a preset rule, respectively, comprises:

Sequentially determining whether the first fragment includes a preset pixel area according to a preset order, wherein the first fragment is included in the specified number of fragments;

If the first fragment includes the preset pixel area, then the first fragments are counted in the sorting, and the first fragments are formed according to the position of each first fragment in the preset picture according to the preset order. A sort

Acquiring the serial number of the first fragment in the first sort;

Obtaining the first number in the corresponding sequence number in the array according to the sequence number;

The first number is hidden in a preset pixel area in the first fragment.
16. The computer device according to claim 16, wherein before the step of sequentially determining whether the first fragment contains a preset pixel area according to a preset order, it comprises:

Cut the preset picture uniformly in parallel along the first direction according to the first preset pitch to form multiple rows of pictures, and perform first encoding on each row of pictures according to the number of rows of each row of pictures in the preset picture ；

Cut each of the line pictures in a second direction according to a second preset interval to form the fragments, and perform a second encoding on each of the fragments according to the arrangement order of the fragments in the line pictures, wherein , The first direction and the second direction are perpendicular to each other;

According to the first code and the second code, a coordinate code corresponding to each of the fragments is formed.
A computer non-volatile readable storage medium, on which a computer program is stored, characterized in that, when the computer program is executed by a processor, a method for adding anti-counterfeiting information is realized, and the method for adding anti-counterfeiting information includes:

Generate a QR code based on the anti-counterfeiting information according to the preset QR code rules;

Acquiring an array corresponding to the two-dimensional code, where the array is composed of multiple numbers;

Hiding each of the numbers in a preset picture in sequence according to a preset rule, where the preset picture is a picture to which the anti-counterfeiting information needs to be added;

Display the preset picture carrying the anti-counterfeiting information.
The computer non-volatile readable storage medium according to claim 18, wherein the preset picture is formed by splicing a specified number of fragments, and the numbers are hidden in a preset order according to preset rules. The steps in the picture include:

Sequentially determining whether the first fragment includes a preset pixel area according to a preset order, wherein the first fragment is included in the specified number of fragments;

If the first fragment includes the preset pixel area, then the first fragments are counted in the sorting, and the first fragments are formed according to the position of each first fragment in the preset picture according to the preset order. A sort

Acquiring the serial number of the first fragment in the first sort;

Obtaining the first number in the corresponding sequence number in the array according to the sequence number;

The first number is hidden in a preset pixel area in the first fragment.
The computer non-volatile readable storage medium according to claim 19, wherein before the step of sequentially determining whether the first fragment contains the preset pixel area according to a preset order, it comprises:

Cut the preset picture uniformly in parallel along the first direction according to the first preset pitch to form multiple rows of pictures, and perform first encoding on each row of pictures according to the number of rows of each row of pictures in the preset picture ；

Cut each of the line pictures in a second direction according to a second preset interval to form the fragments, and perform a second encoding on each of the fragments according to the arrangement order of the fragments in the line pictures, wherein , The first direction and the second direction are perpendicular to each other;

According to the first code and the second code, a coordinate code corresponding to each of the fragments is formed.