CN104598939B - The generation method and equipment of a kind of bar code - Google Patents

Abstract

The invention discloses a method and device for generating a one-dimensional barcode, the main contents of which include: obtaining the gray level including color blocks printed by an inkjet printing device with multiple gray levels and the actual printing line width of the color blocks The experimental image information of the information; analyze the experimental image information to obtain the statistical value of the actual printing line width information corresponding to each gray level; input the statistical value of the actual printing line width information corresponding to each gray level into the barcode Generating software, traversing to obtain one-dimensional barcode dot matrix information, and printing one-dimensional barcode according to the one-dimensional barcode dot matrix information; in this way, it is effectively avoided due to external factors such as printing media, ink and drying environment, and the physical resolution of the nozzle. Insufficient rate leads to the problem of low barcode printing quality, and improves the printing quality of one-dimensional barcodes, especially the printing quality of low modulus one-dimensional barcodes.

Description

Method and device for generating one-dimensional barcode

technical field

The invention relates to the technical field of one-dimensional barcodes, in particular to a method and equipment for generating one-dimensional barcodes.

Background technique

In the field of inkjet printing, due to the limitation of the resolution of the inkjet print head, the printing quality of arbitrary modulus barcodes, especially the printing quality of low modulus one-dimensional barcodes cannot be guaranteed.

In the commonly used barcode generation technology, based on the physical resolution of the inkjet print head, the one-dimensional barcode dot matrix is generated according to the one-dimensional barcode international generation verification method, so that a relatively high-quality barcode in the theoretical sense can be printed. However, in the actual printing process, due to the influence of external factors such as the printing medium, the printing ink used, and the degree of environmental dryness, the quality of the printed barcode is far worse than the theoretical one, especially when the printing modulus is smaller than that of the inkjet barcode. When printing the barcode with the lowest resolution of the nozzle, the quality of the printed barcode is even worse, and even when using these barcodes, it seriously affects the recognition of the barcode.

It can be seen that there is an urgent need for a method for generating one-dimensional barcodes, which is used to solve the problem of low quality of low-modulus one-dimensional barcodes in the technology.

Contents of the invention

Embodiments of the present invention provide a method and device for generating one-dimensional barcodes, which are used to solve the problem of low quality of low-modulus one-dimensional barcodes in the prior art.

A method for generating a one-dimensional barcode, comprising:

Obtaining experimental image information printed by a multi-grayscale inkjet printing device, wherein the experimental image information includes the grayscale of the color block and the actual printing line width information of the color block;

Analyzing the experimental image information to obtain the statistical value of the actual printing line width information corresponding to each gray level;

Input the statistical value of the actual printing line width information corresponding to each gray level into the barcode generation software, traverse to obtain the one-dimensional barcode dot matrix information, and print the one-dimensional barcode according to the one-dimensional barcode dot matrix information.

Analyze the experimental image information to obtain the statistical value of the actual printing line width information corresponding to each gray level, including:

Obtaining the grayscale bar width combination sequence contained in the experimental image information, wherein the grayscale bar width combination sequence includes the number of physical grayscale levels and the number of nozzle holes used to print each color block;

Using image analysis software, the statistical value of the actual printing line width information corresponding to each gray level is measured, wherein the statistical value of the actual printing line width information includes the gray value printed by the first nozzle hole used for the actual printing line width degree, the number of middle orifice printing used by the actual printing line width, and the gray level of the final orifice printing used by the actual printing line width.

The middle nozzle hole refers to other nozzle holes except the first nozzle hole used and the last nozzle hole used for the actual printing line width.

The gray level printed by the middle orifice used by each actual printing line width is greater than the gray level printed by the first orifice used by the actual printed line width, and greater than the gray level printed by the last orifice used by the actual printed line width class.

The gray level printed by the middle orifice used for each actual printing line width is the highest gray level used by the inkjet printing device.

Input the statistical value of the actual printing line width information corresponding to each gray level into the barcode generation software, traverse to obtain the one-dimensional barcode dot matrix information, including:

Inputting the statistical value of the actual printing line width information corresponding to each gray level into the barcode generation software, replacing the set theoretical printing line width information, and correcting the decodable calculated value of the barcode verification;

Using the corrected decodable calculation value as the barcode generation standard, the barcode arrangement that meets the set conditions is selected as the dot matrix information of the one-dimensional barcode to be printed.

A one-dimensional barcode generating device, comprising:

An acquisition module, configured to acquire experimental image information printed by a multi-grayscale inkjet printing device, wherein the experimental image information includes the grayscale of the color block and the actual printing line width information of the color block;

An analysis module, configured to analyze the experimental image information to obtain the statistical value of the actual printing line width information corresponding to each gray level;

The generation module is used to input the statistical value of the actual printing line width information corresponding to each gray level into the barcode generation software, traverse to obtain the one-dimensional barcode dot matrix information, and print the obtained one-dimensional barcode dot matrix information according to the one-dimensional barcode dot matrix information. 1D barcode.

The analysis module is used to obtain the grayscale bar width combination sequence contained in the experimental image information, wherein the grayscale bar width combination sequence includes the physical grayscale levels and the inkjet used to print each color block. Number of holes;

Using image analysis software, the statistical value of the actual printing line width information corresponding to each gray level is measured, wherein the statistical value of the actual printing line width information includes the gray value printed by the first nozzle hole used for the actual printing line width degree, the number of middle orifice printing used by the actual printing line width, and the gray level of the final orifice printing used by the actual printing line width.

The middle nozzle hole refers to other nozzle holes except the first nozzle hole used and the last nozzle hole used for the actual printing line width.

The gray level printed by the middle orifice used by each actual printing line width is greater than the gray level printed by the first orifice used by the actual printed line width, and greater than the gray level printed by the last orifice used by the actual printed line width class.

The gray level printed by the middle orifice used for each actual printing line width is the highest gray level used by the inkjet printing device.

The generation module is specifically used to input the statistical value of the actual printing line width information corresponding to each gray level into the barcode generation software, replace the set theoretical printing line width information, and correct the decodable calculation value of the barcode verification ;

Using the corrected decodable calculation value as the barcode generation standard, the barcode arrangement that meets the set conditions is selected as the dot matrix information of the one-dimensional barcode to be printed.

The beneficial effects of the present invention are as follows:

In the embodiment of the present invention, the experimental image information including the gray level of the color block and the actual printing line width information of the color block printed by the multi-gray-level inkjet printing device is acquired; the experimental image information is analyzed to obtain each The statistical value of the actual printing line width information corresponding to a gray level; the statistical value of the actual printing line width information corresponding to each gray level is input into the barcode generation software, traverses to obtain the one-dimensional barcode dot matrix information, and according to the Describe the one-dimensional barcode dot matrix information, and print the one-dimensional barcode; in this way, the problem of low barcode printing quality caused by external factors such as printing media, ink and drying environment and insufficient physical resolution of the nozzle is effectively avoided, and the one-dimensional barcode is improved. Excellent print quality, especially for low-modulus one-dimensional barcodes.

Description of drawings

FIG. 1 is a schematic flowchart of a method for generating a one-dimensional barcode provided in Embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of a one-dimensional barcode generating device provided in Embodiment 2 of the present invention.

detailed description

In order to achieve the purpose of the present invention, an embodiment of the present invention provides a method and device for generating a one-dimensional barcode, by obtaining the gray levels printed by a multi-grayscale inkjet printing device that includes color blocks and the color blocks The experimental image information of the actual printing line width information; analyze the experimental image information to obtain the statistical value of the actual printing line width information corresponding to each gray level; the actual printing line width information corresponding to each gray level Input the statistical value of the barcode into the barcode generation software, traverse to obtain the one-dimensional barcode dot matrix information, and print the one-dimensional barcode according to the one-dimensional barcode dot matrix information; in this way, it effectively avoids external problems caused by printing media, ink and drying environment, etc. Factors and the lack of physical resolution of the nozzle lead to low barcode printing quality, which improves the printing quality of one-dimensional barcodes, especially the printing quality of low-modulus one-dimensional barcodes.

Various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Embodiment one:

As shown in FIG. 1 , it is a schematic flowchart of a method for generating a one-dimensional barcode provided in Embodiment 1 of the present invention, and the method may be described as follows.

Step 101: Obtain experimental image information printed by a multi-grayscale inkjet printing device.

Wherein, the experimental image information includes the gray level of the color block and the actual printing line width information of the color block.

In step 101, a specified experimental image is printed using a multi-grayscale inkjet printing device. Among them, the printed experimental images can reflect the actual printed line width information corresponding to different inkjet print heads, different numbers of nozzle holes, and different gray levels.

Wherein, the number of nozzle holes of the inkjet printing device may be 1 to N, and N is determined according to the maximum line width value required for printing barcodes. For example: when the resolution of the nozzle of the inkjet printing device is 300dpi, generally 15 nozzle holes are required.

It should be noted that different gray levels can be realized by adjusting the nozzles of the inkjet printing device.

Step 102: Analyze the experimental image information to obtain the statistical value of the actual printing line width information corresponding to each gray level.

In step 102, use a high-resolution scanning device to scan the experimental image information to the computer device, and use image analysis software to measure the width and each grayscale of the various nozzles of the inkjet printing device The statistical value of the actual printing line width information corresponding to the level.

It should be noted that the high-resolution scanning device means that the resolution of the scanning device is greater than or equal to ten times the physical resolution of the nozzle of the inkjet printing device; and the higher the resolution of the scanning device, the more accurate the analysis result.

Specifically, when using the image analysis software to analyze the obtained image information, firstly, the gray-scale bar width combination sequence included in the experimental image information is obtained.

Wherein, the grayscale bar width combination sequence includes the number of physical grayscale levels and the number of nozzle holes used to print each color block.

The number of physical gray scales is related to the intrinsic physical print gray scale of the nozzle of the inkjet printing device; the number of nozzle holes used for printing each color block is determined by the modulus for printing one-dimensional barcodes.

Since in practical applications, the width of a black block of a one-dimensional barcode is only related to the line width on the side of the black bar, therefore, when the width of the color block is greater than the number of 3 nozzle holes, the color block used for printing the color block The nozzle holes in the middle (except the first used nozzle hole and the last used nozzle hole) are all printed with the highest gray scale of the inkjet printing equipment, so as to ensure that the width is not affected, and it is also guaranteed The quality of printed barcodes.

Secondly, use the image analysis software to measure the statistical value of the actual printing line width information corresponding to each gray level.

Wherein, the statistical value of the actual printing line width information includes the gray level of the first nozzle hole printing used by the actual printing line width, the number of middle nozzle holes printing used by the actual printing line width, and the actual printing line width. The gray level printed by the last orifice.

As shown in Table 1, the types of color blocks (or line widths) corresponding to different gray levels:

Table 1

It can be seen from Table 1 that the types of color blocks corresponding to different gray levels are different, the number of color blocks corresponding to the W1 gray level is N, and the other corresponding color blocks are 2 ⁿ .

Taking the physical gray level as 4 and measuring the number of nozzle holes corresponding to the widest color block as 15 as an example, the statistical value of the actual printing line width information corresponding to each gray level obtained from the analysis is shown in Table 2. :

W1 W2 W3 W4 W5 W6 W7 W8 W9 W10 W11 W12 W13 W14 W15 1,1(1) d1 d101 d111 d121 d131 d141 d151 d161 d171 d181 d191 d1A1 d1B1 d1C1 d1D1 1,2(2) d2 d102 d112 d122 d132 d142 d152 d162 d172 d182 d192 d1A2 d1B2 d1C2 d1D2 1,3(3) d3 d103 d113 d123 d133 d143 d153 d163 d173 d183 d193 d1A3 d1B3 d1C3 d1D3 1,4(4) d4 d104 d114 d124 d134 d144 d154 d164 d174 d184 d194 d1A4 d1B4 d1C4 d1D4 2,1 d201 d211 d221 d231 d241 d251 d261 d271 d281 d291 d2A1 d2B1 d2C1 d2D1 2,2 d202 d212 d222 d232 d242 d252 d262 d272 d282 d292 d2A2 d2B2 d2C2 d2D2 2,3 d203 d213 d223 d233 d243 d253 d263 d273 d283 d293 d2A3 d2B3 d2C3 d2D3 2,4 d204 d214 d224 d234 d244 d254 d264 d274 d284 d294 d2A4 d2B4 d2C4 d2D4 3,1 d301 d311 d321 d331 d341 d351 d361 d371 d381 d391 d3A1 d3B1 d3C1 d3D1 3,2 d302 d312 d322 d332 d312 d352 d362 d372 d382 d392 d3A2 d3B2 d3C2 d3D2

3,3 d303 d313 d323 d333 d343 d353 d363 d373 d383 d393 d3A3 d3B3 d3C3 d3D3 3,4 d304 d314 d324 d334 d344 d354 d364 d374 d384 d394 d3A4 d3B4 d3C4 d3D4 4,1 d401 d411 d421 d431 d441 d451 d461 d471 d481 d491 d4A1 d4B1 d4C1 d4D1 4,2 d402 d412 d422 d432 d442 d452 d462 d472 d482 d492 d4A2 d4B2 d4C2 d4D2 4,3 d403 d413 d423 d433 d443 d453 d463 d473 d483 d493 d4A3 d4B3 d4C3 d4D3 4,4 d404 d414 d424 d434 d444 d454 d464 d474 d484 d494 d4A4 d4B4 d4C4 d4D4

Table 2

Among them, the meanings of the three numbers marked after d in the table are:

The first number indicates the gray level printed by the first nozzle hole used for printing a color patch;

The second number indicates the number of middle nozzle holes used by a color block (expressed in hexadecimal), wherein, the middle nozzle hole refers to the nozzle hole used by the actual printing line width except the first nozzle hole and the last nozzle hole used Other orifices other than the last orifice used; and the gray level printed by using the middle orifice is greater than the gray level printed by the first orifice used, and greater than the gray level printed by the last orifice used for the actual printing line width degree level;

The third number indicates the gray level printed by the last used orifice used to print a patch.

It should be noted that the gray level printed by the middle nozzle hole may be the highest gray level used by the inkjet printing device, and there is no limitation here.

Step 103: Input the statistical value of the actual printing line width information corresponding to each gray level into the barcode generation software, traverse to obtain the one-dimensional barcode dot matrix information, and print out the one-dimensional barcode dot matrix information according to the one-dimensional barcode dot matrix information barcode.

In step 103, firstly, input the statistical value of the actual printing line width information corresponding to each gray level into the barcode generation software, replace the set theoretical printing line width information, and correct the decodable calculated value of the barcode verification.

Secondly, using the corrected decodable calculation value as the barcode generation standard, select the barcode arrangement that meets the set conditions as the dot matrix information of the one-dimensional barcode to be printed.

Finally, according to the dot matrix information of the one-dimensional barcode, the one-dimensional barcode is printed.

Through the solution of Embodiment 1 of the present invention, the experimental image information printed by the multi-grayscale inkjet printing device including the grayscale of the color block and the actual printing line width information of the color block is obtained; the experimental image is analyzed Information, to obtain the statistical value of the actual printing line width information corresponding to each gray level; input the statistical value of the actual printing line width information corresponding to each gray level into the barcode generation software, and traverse to obtain the one-dimensional barcode dot matrix information , and according to the dot matrix information of the one-dimensional barcode, the one-dimensional barcode is printed; in this way, the problem of low printing quality of the barcode due to external factors such as the printing medium, ink and drying environment and the insufficient physical resolution of the nozzle is effectively avoided, and the improvement is improved. The printing quality of one-dimensional barcodes, especially the printing quality of low modulus one-dimensional barcodes.

Embodiment two:

As shown in Figure 2, it is a schematic structural diagram of a one-dimensional barcode generating device provided by Embodiment 2 of the present invention. Embodiment 2 of the present invention is an invention under the same inventive concept as Embodiment 1 of the present invention. The generating device Including: acquisition module 11, analysis module 12 and generation module 13, wherein:

The obtaining module 11 is used to obtain the experimental image information printed by the multi-grayscale inkjet printing device, wherein the experimental image information includes the grayscale of the color block and the actual printing line width information of the color block;

The analysis module 12 is used to analyze the experimental image information, and obtain the statistical value of the actual printing line width information corresponding to each gray level;

The generation module 13 is used for inputting the statistical value of the actual printing line width information corresponding to each gray level into the barcode generation software, traversing to obtain the one-dimensional barcode dot matrix information, and printing according to the one-dimensional barcode dot matrix information Get a one-dimensional barcode.

Specifically, the analysis module 12 is configured to obtain the grayscale bar width combination sequence contained in the experimental image information, wherein the grayscale bar width combination sequence includes the physical grayscale levels and the number of prints for each color. The number of orifices used by the block;

Using image analysis software, the statistical value of the actual printing line width information corresponding to each gray level is measured, wherein the statistical value of the actual printing line width information includes the gray value printed by the first nozzle hole used for the actual printing line width degree, the number of middle orifice printing used by the actual printing line width, and the gray level of the final orifice printing used by the actual printing line width.

The middle nozzle hole refers to other nozzle holes except the first nozzle hole used and the last nozzle hole used for the actual printing line width.

The gray level printed by the middle orifice used by each actual printing line width is greater than the gray level printed by the first orifice used by the actual printed line width, and greater than the gray level printed by the last orifice used by the actual printed line width class.

The gray level printed by the middle orifice used for each actual printing line width is the highest gray level used by the inkjet printing device.

Specifically, the generating module 13 is specifically configured to input the statistical value of the actual printing line width information corresponding to each gray level into the barcode generation software, replace the set theoretical printing line width information, and correct the possibility of barcode verification. Decode the computed value;

Using the corrected decodable calculation value as the barcode generation standard, the barcode arrangement that meets the set conditions is selected as the dot matrix information of the one-dimensional barcode to be printed.

It should be noted that the device described in Embodiment 2 of the present invention may be a device implemented by hardware or a device implemented by software, which is not limited here.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, devices (devices), or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices) and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (12)

1. a kind of bar code generation method, it is characterised in that including：

The experimental image information of the ink jet printing device printing of multi-grey level is obtained, wherein, included in the experimental image information The actual printing line width information of the gray level of color lump and the color lump；

The experimental image information is analyzed, the statistical value of the corresponding actual printing line width information of each gray level is obtained；

By the statistical value input bar code generation software of the corresponding actual printing line width information of each described gray level, traversal is obtained Bar code lattice information, and according to the bar code lattice information, printing obtains bar code.

2. the method as described in claim 1, it is characterised in that the analysis experimental image information, obtains each gray level The statistical value of corresponding actual printing line width information, including：

The grayscale bar wide array sequence included in the experimental image information is obtained, wherein, in the grayscale bar wide array sequence Contain physics number of greyscale levels and print the nozzle hole number that each color lump is used；

Using image analysis software, measurement obtains the statistical value of the corresponding actual printing line width information of each gray level, wherein, The actual statistical value for printing line width information includes the gray level for the first spray orifice printing that an actual printing line width is used, is somebody's turn to do The gray level for the last spray orifice printing that the quantity for the middle spray orifice printing that actual printing line width is used, the actual printing line width are used.

3. method as claimed in claim 2, it is characterised in that the middle spray orifice refers to the spray orifice that actual printing line width is used Other spray orifices in addition to the first spray orifice used and the last spray orifice finally used.

4. method as claimed in claim 2 or claim 3, it is characterised in that the middle spray orifice that each actual printing line width is used is beaten The gray level of print is more than the gray level for the first spray orifice printing that the actual printing line width is used and made more than the actual printing line width The gray level of last spray orifice printing.

5. method as claimed in claim 4, it is characterised in that the middle spray orifice printing that each actual printing line width is used Gray level is highest gray level used in ink jet printing device.

6. the method as described in claim 1 or 5, it is characterised in that will the corresponding actual print wire of each described gray level The statistical value input bar code generation software of wide information, traversal obtains bar code lattice information, including：

By the statistical value input bar code generation software of the corresponding actual printing line width information of each described gray level, replace and set Theoretical printing line width information, and correct the decodable code calculated value of bar code checking；

Standard is generated by the use of revised decodable code calculated value as bar code, selection meets the bar code arrangement mode imposed a condition and made For the lattice information of bar code to be printed.

7. a kind of bar code generates equipment, it is characterised in that including：

Acquisition module, for obtaining the experimental image information that the ink jet printing device of multi-grey level is printed, wherein, the lab diagram As containing the gray level of color lump and the actual printing line width information of the color lump in information；

Analysis module, for analyzing the experimental image information, obtains the corresponding actual printing line width information of each gray level Statistical value；

Generation module, for the corresponding actual statistical value input bar code for printing line width information of each described gray level to be generated Software, traversal obtains bar code lattice information, and according to the bar code lattice information, printing obtains bar code.

8. equipment is generated as claimed in claim 7, it is characterised in that

The analysis module, the grayscale bar wide array sequence included for obtaining in the experimental image information, wherein, the ash Physics number of greyscale levels is contained in degree bar wide array sequence and the nozzle hole number that each color lump is used is printed；

Using image analysis software, measurement obtains the statistical value of the corresponding actual printing line width information of each gray level, wherein, The actual statistical value for printing line width information includes the gray level for the first spray orifice printing that an actual printing line width is used, is somebody's turn to do The gray level for the last spray orifice printing that the quantity for the middle spray orifice printing that actual printing line width is used, the actual printing line width are used.

9. equipment is generated as claimed in claim 8, it is characterised in that the middle spray orifice refers to what actual printing line width was used Other spray orifices of spray orifice in addition to the first spray orifice used and the last spray orifice finally used.

10. equipment is generated as claimed in claim 8 or 9, it is characterised in that the middle spray that each actual printing line width is used The gray level of hole printing is more than the gray level for the first spray orifice printing that the actual printing line width is used and more than the actual print wire The gray level for the last spray orifice printing that width is used.

11. equipment is generated as claimed in claim 10, it is characterised in that the middle spray orifice that each actual printing line width is used The gray level of printing is highest gray level used in ink jet printing device.

12. the generation equipment as described in claim 7 or 11, it is characterised in that

The generation module, specifically for the corresponding actual statistical value for printing line width information of each described gray level is inputted Bar code generates software, replaces the theoretical printing line width information set, and correct the decodable code calculated value of bar code checking；

Standard is generated by the use of revised decodable code calculated value as bar code, selection meets the bar code arrangement mode imposed a condition and made For the lattice information of bar code to be printed.