CN107563476B - Two-dimensional code beautifying and anti-counterfeiting method - Google Patents
Two-dimensional code beautifying and anti-counterfeiting method Download PDFInfo
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Abstract
The invention relates to the technical field of two-dimensional codes, in particular to a beautifying and anti-counterfeiting method for a two-dimensional code, which comprises the following steps: reducing the area of a black color block in the original two-dimensional code; reducing pixels of the two-dimensional code; adjusting the transparency of black and white blocks in the two-dimensional code; obtaining the minimum recognizable value of the area and the pixel of the black block and the transparency of the black and white blocks in the two-dimensional code; and combining the two-dimensional code and the high-definition background image, and adjusting the RGB value to the optimal value which is most easily recognized. The invention has the beneficial effects that: by using a high-definition background image, the covering proportion and the image transparency value of the foreground two-dimensional code are reduced, and the attractiveness is guaranteed to the greatest extent; the optimal parameter combination is selected, so that the recognition rate of the two-dimensional code is guaranteed; the image processing algorithm is difficult to copy, and the two-dimensional code is difficult to forge; the coverage rate and the pixels of the foreground two-dimensional code are reduced, the foreground two-dimensional code can not be identified basically after being photographed, and the fact that cheating cannot be conducted in a specific scene is guaranteed.
Description
Technical Field
The invention relates to the technical field of two-dimensional codes, in particular to a beautifying and anti-counterfeiting method for a two-dimensional code.
Background
The two-dimensional bar code/two-dimensional code (2-dimensional bar code) records data symbol information by using black and white alternate graphs which are distributed on a plane (two-dimensional direction) according to a certain rule by using a certain specific geometric figure; the concept of '0' and '1' bit stream which forms the internal logic base of computer is skillfully utilized in coding, a plurality of geometric shapes corresponding to binary system are used for representing literal numerical information, and the information is automatically read by an image input device or an optoelectronic scanning device so as to realize the automatic processing of the information: it has some commonality of barcode technology: each code system has its specific character set; each character occupies a certain width; has certain checking function and the like. Meanwhile, the method also has the function of automatically identifying information of different rows and processing the graph rotation change points. The two-dimensional code is a label mainly made of black and white, and in the using process, the visual experience is not good enough, and the two-dimensional code is easy to forge.
Disclosure of Invention
In order to solve the problems, the invention provides a method for beautifying and preventing counterfeiting of a two-dimensional code.
The technical scheme of the invention is as follows: a two-dimensional code beautifying and anti-counterfeiting method is characterized by comprising the following steps:
(1) reducing the area of a black color block in the original two-dimensional code;
(2) reducing pixels of the two-dimensional code;
(3) adjusting the transparency of black and white blocks in the two-dimensional code;
(4) obtaining the minimum recognizable value of the area and the pixel of the black block and the transparency of the black and white blocks in the two-dimensional code;
(5) and combining the two-dimensional code and the high-definition background image, and adjusting the RGB value to the optimal value which is most easily recognized.
Preferably, the method for reducing the area of the black block in the original two-dimensional code to the minimum value capable of identifying the original two-dimensional code comprises: and converting the original two-dimensional code into a pixel matrix, and modifying a full-size black block in the two-dimensional code into a non-full-size black block according to a template.
Preferably, the method for reducing the pixels of the two-dimensional code to the minimum value capable of identifying the two-dimensional code comprises: scaling the template to a required size through a scaling function (xt, yt) (wt/ws) × z × (xs, ys), and further performing reduction adjustment on each pixel, wherein (xt, yt) is a target pixel coordinate; (xs, ys) is the template pixel coordinate; wt is the target width; ws is the template width; wt/ws is the scaling factor; z is a regulation and control scaling weight, and dynamic change is carried out during subsequent regulation and control, wherein the default value is 1.
Preferably, the method for adjusting the transparency of the black and white blocks in the two-dimensional code to the lowest transparency for identifying the two-dimensional code comprises: and generating a two-dimensional code according to the zoom weight Z, the white ARGB value and the black ARGB value of the template and the dichotomy value of each defined interval, and reversely identifying the two-dimensional code, if the two-dimensional code can be identified, adjusting the zoom weight Z, the white ARGB value and the black ARGB value, and continuously generating the two-dimensional code for identification until the two-dimensional code cannot be identified, thereby obtaining the optimal parameter combination.
Preferably, the method for merging the two-dimensional code and the high-definition background map and adjusting the RGB values to the most easily recognized optimal values includes: carrying out binarization processing on the background picture to obtain a black and white dot matrix image; combining the two-dimensional code with the determined color block size and a background picture, setting the initial value of the RGB value of the 0 value of the two-dimensional code matrix with the black background picture as (200 ) to make the color be gray; the 1 value RGB initial value is set to (0,0,0), so that the black point can not be identified as a white point because the background is black; the initial value of RGB 0 value of the two-dimensional code matrix with white background is set to be (220,220,220), so that the color is white, the excessive visual effect is better, and the initial value of RGB 1 value is set to be (50,50,50), so that the black point is gray, and the purpose of softness is achieved; after the initial value is set, the value 0 of the two-dimensional code matrix is between (200 ) and (220,220,220), the value 1 is between (0,0,0) and (50,50,50), the two-dimensional code matrix is subjected to dichotomy value taking, the two-dimensional code is generated, reverse recognition is carried out, and the optimal RGB value combination is screened out according to the recognition speed.
The invention has the beneficial effects that:
(1) by using a high-definition background image, the covering proportion and the image transparency value of the foreground two-dimensional code are reduced, and the attractiveness is guaranteed to the greatest extent;
(2) the optimal parameter combination is selected, so that the recognition rate of the two-dimensional code is guaranteed;
(3) the image processing algorithm is difficult to copy, and the two-dimensional code is difficult to forge;
(4) the coverage rate and the pixels of the foreground two-dimensional code are reduced, the foreground two-dimensional code can not be identified basically after being photographed, and the fact that cheating cannot be conducted in a specific scene is guaranteed.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic flow chart of an embodiment of the present invention;
fig. 2 is a merged diagram of a two-dimensional code and a high definition background diagram according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
With reference to the attached drawing 1, a two-dimensional code beautifying and anti-counterfeiting method is characterized by comprising the following steps:
(1) reducing the area of a black color block in the original two-dimensional code;
(2) reducing pixels of the two-dimensional code;
(3) adjusting the transparency of black and white blocks in the two-dimensional code;
(4) obtaining the minimum recognizable value of the area and the pixel of the black block and the transparency of the black and white blocks in the two-dimensional code;
(5) and combining the two-dimensional code and the high-definition background image, and adjusting the RGB value to the optimal value which is most easily recognized.
The method for reducing the area of the black block in the original two-dimensional code to the minimum value capable of identifying the original two-dimensional code comprises the following steps: and converting the original two-dimensional code into a pixel matrix, and modifying a full-size black block in the two-dimensional code into a non-full-size black block according to a template. The original patch, because it is full-size, is converted to a pixel matrix by the template:
1 1 1 1 1 1
1 1 1 1 1 1
1 1 1 1 1 1
1 1 1 1 1 1
1 1 1 1 1 1
1 1 1 1 1 1。
the color patch is modified to a non-full size, and the template is defined as follows:
0 0 0 0 0 0
0 1 1 1 1 0
0 1 1 1 1 0
0 1 1 1 1 0
0 1 1 1 1 0
0 0 0 0 0 0。
when an image is generated, 0 represents colorless and 1 represents black.
The method for reducing the pixels of the two-dimensional code to the minimum value capable of identifying the two-dimensional code comprises the following steps: scaling the template to a required size through a scaling function (xt, yt) (wt/ws) × z × (xs, ys), and further performing reduction adjustment on each pixel, wherein (xt, yt) is a target pixel coordinate; (xs, ys) is the template pixel coordinate; wt is the target width; ws is the template width; wt/ws is the scaling factor; z is a regulation and control scaling weight, and dynamic change is carried out during subsequent regulation and control, wherein the default value is 1.
The method for adjusting the transparency of the black and white blocks in the two-dimensional code to the lowest transparency for identifying the two-dimensional code comprises the following steps: and generating a two-dimensional code according to the zoom weight Z, the white ARGB value and the black ARGB value of the template and the dichotomy value of each defined interval, and reversely identifying the two-dimensional code, if the two-dimensional code can be identified, adjusting the zoom weight Z, the white ARGB value and the black ARGB value, and continuously generating the two-dimensional code for identification until the two-dimensional code cannot be identified, thereby obtaining the optimal parameter combination.
With reference to fig. 2, the method for merging the two-dimensional code and the high-definition background map and adjusting the RGB values to the most easily recognized optimal values includes: carrying out binarization processing on the background picture to obtain a black and white dot matrix image; combining the two-dimensional code with the determined color block size and a background picture, setting the initial value of the RGB value of the 0 value of the two-dimensional code matrix with the black background picture as (200 ) to make the color be gray; the 1 value RGB initial value is set to (0,0,0), so that the black point can not be identified as a white point because the background is black; the initial value of RGB 0 value of the two-dimensional code matrix with white background is set to be (220,220,220), so that the color is white, the excessive visual effect is better, and the initial value of RGB 1 value is set to be (50,50,50), so that the black point is gray, and the purpose of softness is achieved; after the initial value is set, the value 0 of the two-dimensional code matrix is between (200 ) and (220,220,220), the value 1 is between (0,0,0) and (50,50,50), the two-dimensional code matrix is subjected to dichotomy value taking, the two-dimensional code is generated, reverse recognition is carried out, and the optimal RGB value combination is screened out according to the recognition speed.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (4)
1. A two-dimensional code beautifying and anti-counterfeiting method is characterized by comprising the following steps:
1) reducing the area of a black color block in the original two-dimensional code;
2) reducing pixels of the two-dimensional code;
3) adjusting the transparency of black and white blocks in the two-dimensional code;
4) obtaining the minimum recognizable value of the area and the pixel of the black block and the transparency of the black and white blocks in the two-dimensional code;
5) combining the two-dimensional code and the high-definition background image, and adjusting the RGB value to the optimal value which is most easily recognized;
the method for combining the two-dimensional code and the high-definition background image and adjusting the RGB value to the best value which is most easily recognized comprises the following steps: carrying out binarization processing on the background picture to obtain a black and white dot matrix image; combining the two-dimensional code with the determined color block size and a background picture, setting the initial value of the RGB value of the 0 value of the two-dimensional code matrix with the black background picture as (200 ) to make the color be gray; the 1 value RGB initial value is set to (0,0,0), so that the black point can not be identified as a white point because the background is black; the initial value of RGB 0 value of the two-dimensional code matrix with white background is set to be (220,220,220), so that the color is white, the excessive visual effect is better, and the initial value of RGB 1 value is set to be (50,50,50), so that the black point is gray, and the purpose of softness is achieved; after the initial value is set, the value 0 of the two-dimensional code matrix is between (200 ) and (220,220,220), the value 1 is between (0,0,0) and (50,50,50), the two-dimensional code matrix is subjected to dichotomy value taking, the two-dimensional code is generated, reverse recognition is carried out, and the optimal RGB value combination is screened out according to the recognition speed.
2. The method for beautifying and anti-counterfeiting of the two-dimensional code according to claim 1, wherein the method for reducing the area of the black block in the original two-dimensional code to the minimum value capable of identifying the original two-dimensional code comprises the following steps: and converting the original two-dimensional code into a pixel matrix, and modifying a full-size black block in the two-dimensional code into a non-full-size black block according to a template.
3. The method for beautifying and anti-counterfeiting of the two-dimensional code according to claim 1, wherein the method for reducing the pixels of the two-dimensional code to the minimum value capable of identifying the two-dimensional code comprises the following steps: scaling the template to a required size through a scaling function (xt, yt) = (wt/ws) × z (xs, ys), and further performing reduction adjustment on each pixel, wherein (xt, yt) is a target pixel coordinate; (xs, ys) is the template pixel coordinate; wt is the target width; ws is the template width; wt/ws is the scaling factor; z is a regulation and control scaling weight, and dynamic change is carried out during subsequent regulation and control, wherein the default value is 1.
4. The method for beautifying and anti-counterfeiting of the two-dimensional code according to claim 2, wherein the method for adjusting the transparency of the black and white blocks in the two-dimensional code to the lowest transparency for identifying the two-dimensional code comprises the following steps: and generating a two-dimensional code according to the zoom weight Z, the white ARGB value and the black ARGB value of the template and the dichotomy value of each defined interval, and reversely identifying the two-dimensional code, if the two-dimensional code can be identified, adjusting the zoom weight Z, the white ARGB value and the black ARGB value, and continuously generating the two-dimensional code for identification until the two-dimensional code cannot be identified, thereby obtaining the optimal parameter combination.
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| CN108681767A (en) * | 2018-05-29 | 2018-10-19 | 黄希敏 | A kind of signed and stamped publicity method of tracing to the source |
| CN110033068A (en) * | 2019-04-17 | 2019-07-19 | 尤尼泰克(嘉兴)信息技术有限公司 | A kind of two-dimensional code generation method and equipment containing background image |
| CN110263894B (en) * | 2019-06-21 | 2022-08-16 | 新疆三维智达网络科技有限公司 | Image code generation method |
| CN111062455B (en) * | 2019-12-18 | 2024-05-14 | 北京远度互联科技有限公司 | Two-dimensional code simplification and display method and device, electronic equipment and storage medium |
| CN111539503A (en) * | 2020-04-02 | 2020-08-14 | 北京环网瑞通软件有限责任公司 | Method and device for generating color anti-counterfeiting two-dimensional code and anti-counterfeiting system |
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