CN115545126A

CN115545126A - Code spreading method and system for point writing pen image indexes

Info

Publication number: CN115545126A
Application number: CN202210446922.XA
Authority: CN
Inventors: 游文聪; 肖仁彪; 刘丙洋
Original assignee: Zhuhai Kaixin Microelectronics Technology Co ltd
Current assignee: Zhuhai Kaixin Microelectronics Technology Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-12-30

Abstract

The invention provides a code spreading method and system for point-writing pen image indexes, and relates to the technical field of intelligent electronics and application thereof. The method comprises the steps of obtaining an original picture without codes; converting the original picture into a CMYK format to obtain a CMYK original picture suitable for printing; removing black from the CMYK original picture to generate a CMYK three-color picture; importing CMYK original pictures into code-spreading software, spreading codes in a preset area, and outputting an image index map only containing black; combining the CMY three-color picture and the image index map into a publishing printing image file; and dividing the published printing image file into a plurality of version images corresponding to each color channel, and overlapping and printing the plurality of version images on the printing carrier in sequence according to a preset sequence. The method can avoid the interference between the spread codes and characters or patterns on the books, and improve the reading identification precision of the point writing pen.

Description

Code spreading method and system for point writing pen image indexes

Technical Field

The invention relates to the technical field of intelligent electronics and application thereof, in particular to a code paving method and system for point writing pen image indexes.

Background

In order to adapt to the development of education, more and more audio books are available on the market, and products of the type appear along with the development of a point reading code technology, including books printed with point reading codes and point writing pens sensing the point reading codes. However, in the existing book matched with the point writing pen, in the code spreading process, the code spreading is easily interfered with characters or patterns on the book, so that the point writing pen cannot be correctly identified in some complex patterns, and therefore a code spreading method and a system for image indexes of the point writing pen are urgently needed.

Disclosure of Invention

The invention aims to provide a code spreading method for dot-writing pen image indexes, which can avoid the interference of code spreading and characters or patterns on books and improve the reading identification precision of dot-writing pens.

The embodiment of the invention is realized by the following steps:

in a first aspect, an embodiment of the present application provides a code spreading method for a dot-writing pen image index, which includes obtaining an original image without a code spreading; converting the original picture into a CMYK format to obtain a CMYK original picture suitable for printing; removing black from the CMYK original image to generate a CMY three-color image; importing the CMYK original manuscript picture into code spreading software, spreading codes in a preset area, and outputting an image index map only containing black; combining the CMY three-color picture and the image index map into a publishing printing image file; and dividing the published printing image file into a plurality of version images corresponding to each color channel, and overlapping and printing the plurality of version images on the printing carrier in sequence according to a preset sequence.

In some embodiments of the present invention, the black process is removed from the CMYK original picture, and the step of generating the CMY three-color picture includes: creating a first file containing the CMYK color and international standard color interconversion rules; creating a second file containing the CMY color and international standard color interconversion rules; converting the CMYK original image into international standard color according to the data in the first file by adopting a color management system to obtain an intermediate file; and correspondingly generating the CMY three-color picture from the intermediate file according to the data in the second file.

In some embodiments of the present invention, the color management system employs a CMS color management system.

In some embodiments of the invention, the first file and the second file both employ an ICC format.

In some embodiments of the present invention, the step of merging the CMY three color picture and the image index map into a published printed image file comprises: except black index information, the rest parts in the image index graph are set to be transparent, the image index graph is covered above CMY three-color pictures, and black code points are unconditionally substituted for pixel points of the CMY three-color pictures below the image index graph during covering.

In some embodiments of the present invention, the step of dividing the publication print image file into a plurality of version images corresponding to the respective color channels, and the step of sequentially superimposing the plurality of version images on the print carrier in a preset order includes: dividing the publishing printing image file into a C version image, an M version image, a Y version image and a K version image corresponding to each color channel; and during printing, the C-plate image, the M-plate image, the Y-plate image and the K-plate image are successively overprinted on paper.

In some embodiments of the invention, the K plate image is printed on paper using a black carbon containing ink.

In a second aspect, an embodiment of the present application provides a code spreading system for a dot-writing pen image index, which includes an image input module, configured to obtain an original picture without spreading codes; the format conversion module is used for converting the original picture into a CMYK format to obtain a CMYK original picture suitable for printing; the removing module is used for removing black processing from the CMYK original image to generate a CMY three-color image; the software code spreading module is used for importing CMYK original pictures into code spreading software, spreading codes in a preset area and outputting an image index map only containing black; the synthesis module is used for combining the CMY three-color pictures and the image index map into a published and printed image file; and the printing module is used for dividing the published printing image file into a plurality of version images corresponding to each color channel and overlapping and printing the plurality of version images on the printing carrier in sequence according to a preset sequence.

In a third aspect, an embodiment of the present application provides an electronic device, including at least one processor, at least one memory, and a data bus; wherein: the processor and the memory complete mutual communication through a data bus; the memory stores program instructions executable by the processor, which invokes the program instructions to perform a tiling method for a dot-pen image marker.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having a computer program stored thereon, where the computer program, when executed by a processor, implements a tiling method for a stylus image pointer.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

for the point writing pen, in the identification, a camera is arranged on the pen point of the electric reading pen and matched with an infrared lamp and an infrared sensor, the infrared lamp irradiates the book and reflects the infrared lamp to the lens of the camera, and the picture shot by the camera displays the image of the ink, so that the identification is carried out. And to the reflection of infrared ray, its reflection effect is different to different printing ink, from this design adopts to set up black carbonaceous printing ink, utilizes the infrared lamp of transmission 850NM infrared ray, lets red line sensor discern. Meanwhile, in order to enable the infrared sensor to read the image indexes smoothly, black which is not the image index in the printing content is deleted firstly, and then the image indexes are combined into the image for printing, so that interference between code spreading and characters or patterns on books is avoided, and the recognition accuracy of reading by a dot-writing pen is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a code-spreading method for a dot-pen image pointer according to the present invention;

FIG. 2 is a flow chart of a method for applying a code to a dot-writing pen image pointer according to the present invention;

FIG. 3 is a schematic view of the process for removing black color according to the present invention;

FIG. 4 is a schematic diagram of a code-applying system for dot-writing pen image indicators according to the present invention;

fig. 5 is a schematic structural diagram of an electronic device according to the present invention.

Icon: 1. an image input module; 2. a format conversion module; 3. removing the module; 4. a software code-laying module; 5. a synthesis module; 6. a printing module; 7. a processor; 8. a memory; 9. a data bus; 10. code paving software; 11. an image index map; 12. CMY three-color pictures; 13. a CMYK original picture; 14. publishing the printed image file.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally placed when products of the application are used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present application.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the individual features of the embodiments can be combined with one another without conflict.

Example 1

Referring to fig. 1 and 2, in the method for spreading codes for an image index of a stylus pen according to an embodiment of the present disclosure, for the stylus pen, in recognition, a camera is disposed on a pen point of an electric reading pen and an infrared lamp and an infrared sensor are used in cooperation, the infrared lamp irradiates the book and reflects the book to a lens of the camera, and a photo taken by the camera displays an image of ink, so as to perform recognition. And to the reflection of infrared ray, its reflection effect is different to different printing ink, from this design adopts to set up black carbonaceous printing ink, utilizes the infrared lamp of transmission 850NM infrared ray, lets red line sensor discern. Meanwhile, in order to enable the infrared sensor to read the image indexes (namely, code spreading generates a code map, as shown in fig. 1), black which is not the image index in the printing content is deleted, and then the image indexes are combined into the image for printing, so that interference between the code spreading and characters or patterns on the book is avoided, and the reading identification precision of the dot writing pen is improved.

S1: acquiring an original picture without codes;

for the acquisition of the original picture, a client side or a special folder can be set, and a file is put in, so that the required un-coded original picture is selected at a fixed position.

S2: converting the original picture into a CMYK format to obtain a CMYK original picture 13 suitable for printing;

in the design, the picture needs to be printed, so the original picture needs to be converted into a format suitable for printing; the CMYK color scheme is a subtractive color scheme based on the light absorption characteristics of the printing ink on the paper. Wherein CMYK consists of four colors, cyan (C), magenta (M), yellow (Y) and black (K), respectively; therefore, the design adopts a CMYK format;

s3: removing black processing from the CMYK original image 13 to generate a CMY three-color image 12;

for reading the image index, the black color on the CMYK original image 13 affects the recognition of the dot-writing pen, so that in order for the infrared sensor to read the image index smoothly, the black color other than the image index in the printed content is deleted first, thereby generating the CMY three-color image 12 having only cyan (C), magenta (M), and yellow (Y).

S4: importing the CMYK original image 13 into the coding software 10, coding a preset area, and outputting an image index map 11 only containing black;

for specific code paving information, the code paving software 10 is needed, an OIDPRODUCER editor or an INFOWEAVER editor can be adopted to pave codes for the areas needing the code paving, and then the image index map 11 only containing the code paving information is output.

S5: merging the CMY three color picture 12 and the image index map 11 into a published printed image file 14;

and finally, the CMY three-color picture 12 and the image index map 11 are combined in a superposition mode to generate a publishing printing image file 14.

S6: the publication print image file 14 is divided into a plurality of version images corresponding to the respective color channels, and the plurality of version images are sequentially superimposed on the print carrier in a preset order.

When the paper is printed, the printing is clearer by utilizing the mode of plate separation and successive printing, and the black plate containing the image index graph 11 is printed finally, so that the coverage of the image index graphs 11 of other plates is avoided.

Referring to fig. 3, in some embodiments of the present invention, the step of removing black from the CMYK original image 13 to generate the CMY three-color image 12 includes:

s31: creating a first file containing CMYK color and international standard color interconversion rules;

for the step of decolorizing, the design converts the CMYK colors into international standard colors, and creates a CMYK.ICC file (first file) in which codes for interchanging CMYK and international standard colors are recorded.

S32: creating a second file containing the CMY color and international standard color interconversion rules;

it is also necessary to convert the above-described converted international standard colors into CMY colors again for the CMY colors, thereby creating a CMY. Icc file (second file) in which codes for interchanging CMY and international standard colors are recorded.

S33: converting the CMYK original picture 13 into an international standard color according to data in the first file by adopting a color management system to obtain an intermediate file; and then correspondingly generating the CMY three-color picture 12 from the intermediate file according to the data in the second file.

And finally, converting the created first file and the created second file to obtain a CMY three-color picture 12.

The CMS color management system employs an open color management scheme for both the os-level color management system and the application-level color management system. The method provides convenience for establishing a color characteristic description file system of a set of color equipment or color media in the design.

In some embodiments of the present invention, the first file and the second file both employ an ICC format.

Through the ICC file, the color management system uniformly matches each device with the ICC characteristics of each device, and after the picture is obtained, the ICC information of each device is recorded in each picture file for the color management system of the operating system to load and call. The ICC profile is a table in which all device-dependent color data (CMYK data) are mapped one by one to an LAB color pattern independent of the device. Therefore, the LAB mode is used as a transmission medium, the appearance of all colors is kept consistent, and the colors are kept from changing colors when being transmitted and converted between different devices. Therefore, the LAB mode is used as a transmission medium, the appearance of all colors is kept consistent, and the colors are kept from changing colors when being transmitted and converted between different devices.

In some embodiments of the present invention, the step of merging the CMY three color picture 12 and the image index map 11 into a published printed image file 14 includes: except for the black index information, the rest parts in the image index graph 11 are set to be transparent, the image index graph 11 is covered above the CMY three-color pictures 12, and the black code points unconditionally replace the pixel points of the CMY three-color pictures 12 below the image index graph 11 during covering.

The background of the image index map 11 is set to be transparent, which aims to avoid covering the element content of the CMY three-color picture 12, and the image index is covered based on the image index content for the overlapped content, and because the image index content is a fine dot pattern, the whole pattern is not affected, thereby ensuring the pattern presentation and not affecting the code spreading of the image index.

In some embodiments of the present invention, the step of dividing the published print image file 14 into a plurality of version images corresponding to each color channel, and the step of superimposing the plurality of version images on the print carrier in sequence in a predetermined order comprises: dividing the publishing printing image file 14 into a C version image, an M version image, a Y version image and a K version image corresponding to each color channel; and during printing, the C-plate image, the M-plate image, the Y-plate image and the K-plate image are successively overprinted on paper.

The purpose of the sequential printing is to finally print the K plate (namely the black plate) containing the image index, so that the K plate cannot be covered by other plate images, and the main body pattern cannot be influenced due to the transparent background of the K plate, thereby improving the convenience.

Black carbon-containing ink can be detected by an 850NM infrared sensor and has a high degree of discrimination, thus using black carbon-containing ink.

Example 2

Referring to fig. 4, a code-spreading system for a dot-writing pen image index provided by the present invention includes an image input module 11, configured to obtain an original image without spreading codes; a format conversion module 22, configured to convert the original image into CMYK format, so as to obtain a CMYK original image 13 suitable for printing; a removal module 33, configured to remove black processing from the CMYK original image 13 to generate a CMY three-color image 12; a software code-spreading module 44, configured to import the CMYK original image 13 into the code-spreading software 10, spread codes in a preset area, and output an image index map 11 containing only black; a composition module 55 for combining the CMY three-color picture 12 and the image index map 11 into a published printed image file 14; and the printing module 66 is used for dividing the publishing printing image file 14 into a plurality of version images corresponding to each color channel, and overlapping and printing the plurality of version images on the printing carrier in sequence according to a preset sequence.

Example 3

Referring to fig. 5, an electronic device provided by the present invention includes at least one processor 7, at least one memory 8, and a data bus 9; wherein: the processor 7 and the memory 8 are communicated with each other through a data bus 9; the memory 8 stores program instructions executable by the processor 7, and the processor 7 calls the program instructions to perform a tiling method for dot-pen image pointers. For example, the following steps are realized:

acquiring an original picture without codes; converting the original picture into a CMYK format to obtain a CMYK original picture 13 suitable for printing; removing black processing from the CMYK original image 13 to generate a CMY three-color image 12; importing the CMYK original picture 13 into code spreading software 10, spreading codes in a preset area, and outputting an image index map 11 only containing black; merging the CMY three-color picture 12 and the image index map 11 into a publishing printed image file 14; the published print image file 14 is divided into a plurality of version images corresponding to the respective color channels, and the plurality of version images are successively superimposed on the print carrier in a preset order.

Example 4

The present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor 7, implements a code-tiling method for a stylus image pointer. For example, to realize:

acquiring an original picture without codes; converting the original picture into a CMYK format to obtain a CMYK original picture 13 suitable for printing; removing black processing from the CMYK original image 13 to generate a CMY three-color image 12; importing the CMYK original image 13 into the coding software 10, coding a preset area, and outputting an image index map 11 only containing black; merging the CMY three color picture 12 and the image index map 11 into a published printed image file 14; the published print image file 14 is divided into a plurality of version images corresponding to the respective color channels, and the plurality of version images are successively superimposed on the print carrier in a preset order.

The MEMORY 8 may be, but is not limited to, a RANDOM ACCESS MEMORY 8 (RAM), a READ ONLY MEMORY 8 (READ ONLY MEMORY, ROM), a PROGRAMMABLE READ ONLY MEMORY 8 (PROGRAMMABLE READ-ONLY MEMORY, PROM), an ERASABLE READ ONLY MEMORY 8 (EPROM), an electrically ERASABLE READ ONLY MEMORY 8 (EEPROM), and the like.

The processor 7 may be an integrated circuit chip having signal processing capabilities. The PROCESSOR 7 may be a general-purpose PROCESSOR 7, including a CENTRAL PROCESSING UNIT 7 (CPU), a NETWORK PROCESSOR 7 (NETWORK PROCESSOR, NP), etc.; but also a DIGITAL SIGNAL processor 7 (DSP), an APPLICATION SPECIFIC INTEGRATED CIRCUIT (ASIC), a FIELD PROGRAMMABLE GATE ARRAY (FPGA) or other PROGRAMMABLE logic device, discrete GATE or transistor logic, discrete hardware components.

In the embodiments provided in the present application, it should be understood that the disclosed method may also be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate apparatus and methods according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a portion of a module, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A code paving method for a point writing pen image index is characterized by comprising the following steps:

acquiring an original picture without codes;

converting the original picture into a CMYK format to obtain a CMYK original picture suitable for printing;

removing black from the CMYK original picture to generate a CMYK three-color picture;

importing the CMYK original manuscript picture into code spreading software, spreading codes in a preset area, and outputting an image index map only containing black;

merging the CMY three-color picture and the image index map into a publishing printed image file;

dividing the publishing printing image file into a plurality of version images corresponding to each color channel, and overlapping and printing the plurality of version images on a printing carrier in sequence according to a preset sequence.

2. A coding method for dot-writing pen image index as claimed in claim 1, wherein the step of removing black process to the CMYK original picture to generate CMY three-color picture includes:

creating a first file containing the CMYK color and international standard color interconversion rules;

creating a second file containing the CMY color and international standard color interconversion rules;

converting the CMYK original pictures into international standard colors according to data in the first file by adopting a color management system to obtain an intermediate file; and then correspondingly generating CMY three-color pictures from the intermediate file according to the data in the second file.

3. A coding method for a stylus image marker as claimed in claim 2, wherein the colour management system employs a CMS colour management system.

4. The method of claim 2, wherein the first file and the second file each employ an ICC format.

5. A tiling method for dot-pen image indicators according to claim 1, wherein the step of merging the CMY three-color pictures and the image indicator drawings into a published printed image file comprises:

except black index information, the rest parts in the image index graph are set to be transparent, the image index graph is covered above CMY three-color pictures, and black code points are unconditionally substituted for pixel points of the CMY three-color pictures below the image index graph during covering.

6. The code paving method for the image index of the point writing pen as claimed in claim 1, wherein the step of dividing the published print image file into a plurality of version images corresponding to each color channel, and the step of superimposing the plurality of version images on the print carrier in sequence in a preset order comprises:

dividing the publishing printing image file into a C version image, an M version image, a Y version image and a K version image corresponding to each color channel; and during printing, the C edition image, the M edition image, the Y edition image and the K edition image are successively overprinted on paper.

7. A method of applying a code for a dot-pen image marker according to claim 6, wherein the K image is printed on paper using a black carbon-containing ink.

8. A coding system for point pen image markers, comprising:

the image input module is used for acquiring an original image without spreading codes;

the format conversion module is used for converting the original picture into a CMYK format to obtain a CMYK original picture suitable for printing;

the removing module is used for removing black from the CMYK original image to generate a CMY three-color image;

the software code spreading module is used for importing the CMYK original manuscript picture into code spreading software, spreading codes in a preset area and outputting an image index map only containing black;

a synthesis module for merging the CMY three-color picture and the image index map into a publication print image file;

and the printing module is used for dividing the published printing image file into a plurality of version images corresponding to each color channel and overlapping and printing the plurality of version images on a printing carrier in sequence according to a preset sequence.

9. An electronic device comprising at least one processor, at least one memory, and a data bus; wherein: the processor and the memory complete mutual communication through the data bus; the memory stores program instructions for execution by the processor, the processor calling the program instructions to perform the method of any of claims 1-7.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-7.