WO2022224969A1 - 複合二次元コード、印刷物、情報処理システム、およびプログラム - Google Patents
複合二次元コード、印刷物、情報処理システム、およびプログラム Download PDFInfo
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- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
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- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
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- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
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Definitions
- One embodiment of the present invention relates to a composite two-dimensional code in which two-dimensional codes are synthesized. Moreover, one embodiment of the present invention relates to a printed material on which a composite two-dimensional code is printed. Also, one embodiment of the present invention relates to an information processing system for a composite two-dimensional code. Further, one embodiment of the present invention relates to a program for executing a composite two-dimensional code reading process.
- a two-dimensional code such as a QR code contains more information than a one-dimensional barcode, and a user can easily obtain a lot of information just by reading the two-dimensional code. . Therefore, in recent years, the use of two-dimensional codes has increased in various fields such as process control, inventory control, and settlement.
- Patent Literature 1 discloses a ticket attached with a two-dimensional code.
- Patent Document 2 discloses an insurance policy to which a two-dimensional code is attached.
- Patent Document 1 discloses a two-dimensional code using inks with different reflection characteristics.
- Patent Document 2 discloses a two-dimensional code to which a dummy image is attached when duplicated.
- Patent Documents 1 and 2 are mainly aimed at preventing the forgery of two-dimensional codes in printed matter reproduced by copiers.
- the purpose is to prevent mechanical duplication.
- a composite two-dimensional code according to an embodiment of the present invention is a combination of a first two-dimensional code and a second two-dimensional code, comprising a first cell having a first color and a second cell having a second color.
- a composite two-dimensional code comprising two cells and a third cell having a third color, wherein the first color, the second color and the third color are different from each other and the first two A dimensional code is obtained by a first filtering process, and a second two-dimensional code is obtained by a second filtering process.
- the first filtering process may be a subtractive color process or an additive color process of the second color
- the second filtering process may be a subtractive color process or an additive color process of the first color
- the composite two-dimensional code further includes a first color code having a fourth color, a second color code having a fifth color, and a third color code having a sixth color; , the fifth color, and the sixth color are different from each other, and the first two-dimensional code further includes at least one of the first color code, the second color code, and the third color code and the second two-dimensional code is further obtained by a first filtering process including color correction based on the color based on at least one of the first color code, the second color code, and the third color code It may be obtained by a second filtering process including correction.
- the first color, second color, and third color may be the same as the fourth color, fifth color, and sixth color, respectively.
- the fourth, fifth, and sixth colors may be red, green, and blue, respectively.
- the fourth color, fifth color, and sixth color may be cyan, magenta, and yellow, respectively.
- the first color and the second color may have a complementary color relationship.
- the third color may be black.
- the composite two-dimensional code is printed on the printed material according to one embodiment of the present invention.
- An information processing system provides a composite two-color display including a first cell having a first color, a second cell having a second color, and a third cell having a third color.
- a first acquisition unit that performs a first filtering process on the dimension code to acquire the first two-dimensional code; and a second filtering process on the composite two-dimensional code to acquire the second two-dimensional code. and a second acquisition unit that acquires the
- the first acquisition unit acquires the RGB value of the second cell from the image data of the composite two-dimensional code, and the RGB value of the second cell is within a first range based on the RGB value of the second color.
- a first two-dimensional code including a second cell having the third color and a third cell with a first filtering operation that converts the color of the second cell to a third color when contained in and the second obtaining unit obtains the RGB value of the first cell from the image data, and the RGB value of the first cell falls within a second range based on the RGB value of the first color If so, perform a second filtering process that converts the color of the first cell to a third color to generate a second two-dimensional code that includes the first cell and the third cell having the third color. may be obtained.
- the color of the second cell and the color of the first cell not included in the first range are further converted into the background color of the composite two-dimensional code, and in the second filtering process, Furthermore, the color of the first cell and the color of the second cell that are not included in the second range may be converted to the background color of the composite two-dimensional code.
- the composite two-dimensional code further includes a first color code having a fourth color, a second color code having a fifth color, a third color code having a sixth color, and image data
- a first difference value between the RGB value of the first color code and the RGB value of the fourth color a second difference value between the RGB value of the second color code and the RGB value of the fifth color
- calculating a third difference value between the RGB value of the third color code and the RGB value of the sixth color and at least one of the first difference value, the second difference value, and the third difference value a calculator for correcting the colors of the first cell, the second cell, and the third cell based on .
- the first acquisition unit performs a first filtering process of converting a second cell having a second color in the image data of the composite two-dimensional code, and extracts the first cell having the first color and the third cell having the first color.
- a first two-dimensional code including a third cell having the color of
- a second acquisition unit performs a second filtering process for converting a first cell having a first color in the image data, and converts the first cell having a first color.
- the predetermined condition is that the second number information is within a range of (1 ⁇ a) times or more the first number information and not more than (1+a) times the first number information, and a is a preset setting. can be a value.
- the first acquisition unit performs a first filtering process of converting a second cell having a second color in the image data of the composite two-dimensional code, and extracts the first cell having the first color and the third cell having the first color.
- a first two-dimensional code including a third cell having a color of
- a first cell having a first color for the composite two-dimensional code based on the obtained first two-dimensional code
- a second acquisition unit performs a second filtering process for converting a first cell having a first color in the image data, and converts the first cell having the first color into a composite two-dimensional code second percentage information about a percentage occupied by the first cells having the first color converted to the first color;
- a second two-dimensional code may be obtained that includes a second cell having a color of and a third cell having a third color.
- the predetermined condition is that the second ratio information is within a range of (1 ⁇ a) times the first ratio information or more and (1+a) times or less the first ratio information, and a is a preset setting. can be a value.
- a program causes a computer to store a composite cell including a first cell having a first color, a second cell having a second color, and a third cell having a third color. performing a first filtering process on the two-dimensional code to obtain a first two-dimensional code; performing a second filtering process on the composite two-dimensional code to obtain a second two-dimensional code; to run.
- the RGB value of the second cell is obtained from the composite two-dimensional code image data, and the RGB value of the second cell is within a first range based on the RGB value of the second color.
- the color of the second cell is converted to a third color
- a second filtering operation obtains the RGB values of the first cell from the image data, and the RGB values of the first cell are converted to a third color. Converting the color of the first cell to a third color when contained within a second range based on the RGB values of one color, the first two-dimensional code converting the first cell color to a third color with the third color;
- Two cells and a third cell, the second two-dimensional code may include the first cell and the third cell having a third color.
- the composite two-dimensional code further includes a first color code having a fourth color, a second color code having a fifth color, a third color code having a sixth color
- the computer further comprising: , in the image data, the first difference value between the RGB value of the first color code and the RGB value of the fourth color, the second difference value between the RGB value of the second color code and the RGB value of the fifth color
- a difference value and a third difference value between the RGB value of the third color code and the RGB value of the sixth color are calculated, and the first difference value, the second difference value and the third difference value are calculated. Based on at least one, correcting the color of the first cell, the second cell, and the third cell may be performed.
- a first filtering process for converting a second cell having a second color is performed, and a first cell having the first color and a third cell having a third color are filtered.
- a first number relating to the number of first cells having the first color included in the composite two-dimensional code based on the obtained first two-dimensional code Obtaining information, performing a second filtering operation in the image data to transform first cells having the first color, and obtaining a second number related to the number of first cells having the transformed first color
- a second cell including a second cell having a second color and a third cell having a third color when the information is obtained and the second count information satisfies a predetermined condition based on the first count information. 2D code can be obtained.
- a first filtering process for converting a second cell having a second color is performed, and a first cell having the first color and a third cell having a third color are filtered.
- a first calculation regarding the ratio of the first cells having the first color to the composite two-dimensional code is performed.
- a second two-dimensional code may be obtained that includes a third cell having
- a composite two-dimensional code according to one embodiment of the present invention contains a plurality of two-dimensional codes, and therefore can contain more information than a single two-dimensional code. Also, since the composite two-dimensional code contains cells of multiple colors, it is not easy to mechanically reproduce the color or shape accurately. Moreover, with a composite two-dimensional code, information can only be obtained by filtering the synthesized two-dimensional code into individual codes. Therefore, according to the composite two-dimensional code, not only mechanical duplication but also electronic duplication can be prevented.
- FIG. 1 is a schematic diagram showing the configuration of a composite two-dimensional code according to one embodiment of the present invention
- FIG. FIG. 2 is a schematic diagram showing an example of a usage mode of the composite two-dimensional code according to one embodiment of the present invention
- 1 is a block diagram showing the configuration of an information processing system that executes a composite two-dimensional code reading process according to one embodiment of the present invention
- FIG. 4 is a flow chart diagram of reading processing of a composite two-dimensional code according to one embodiment of the present invention.
- FIG. 4 is a schematic diagram illustrating first acquisition processing for acquiring a first two-dimensional code from a composite two-dimensional code according to one embodiment of the present invention;
- FIG. 5 is a schematic diagram illustrating second acquisition processing for acquiring a second two-dimensional code from the composite two-dimensional code according to one embodiment of the present invention
- FIG. 4 is a schematic diagram illustrating a composite two-dimensional code generation process according to one embodiment of the present invention
- 1 is a block diagram showing the configuration of an information processing system that executes a composite two-dimensional code reading process according to one embodiment of the present invention
- FIG. FIG. 4 is a flow chart diagram of a two-dimensional code reading process according to one embodiment of the present invention.
- 1 is a schematic diagram illustrating the configuration of an information processing system that executes reading processing of a composite two-dimensional code according to one embodiment of the present invention
- FIG. 4 is a flow chart diagram of reading processing of a composite two-dimensional code according to one embodiment of the present invention.
- FIG. 4 is a flow chart diagram of reading processing of a composite two-dimensional code according to one embodiment of the present invention.
- 1 is a schematic diagram showing the configuration of a composite two-dimensional code according to one embodiment of the present invention;
- FIG. 1 is a block diagram showing the configuration of an information processing system that executes a composite two-dimensional code reading process according to one embodiment of the present invention;
- FIG. FIG. 4 is a flow chart diagram of reading processing of a composite two-dimensional code according to one embodiment of the present invention.
- FIG. 4 is a schematic diagram showing the configuration of another color code portion included in the composite two-dimensional code according to one embodiment of the present invention;
- FIG. 4 is a flow chart diagram of reading processing of a composite two-dimensional code according to one embodiment of the present invention.
- two-dimensional code refers to a two-dimensional display format code that has information in the horizontal and vertical directions.
- the two-dimensional code is, for example, a QR code (registered trademark), but is not limited to this.
- FIG. 1 A composite two-dimensional code 300 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7.
- FIG. 1 A composite two-dimensional code 300 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7.
- FIG. 1 A composite two-dimensional code 300 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7.
- FIG. 1 A composite two-dimensional code 300 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7.
- FIG. 1 is a schematic diagram showing the configuration of a composite two-dimensional code 300 according to one embodiment of the present invention.
- a composite two-dimensional code 300 includes a plurality of first cells 301 with a first color, a plurality of second cells 302 with a second color, and a plurality of cells with a third color. includes a third cell 303 of . Also, the composite two-dimensional code 300 shown in FIG. 1 includes three clipped symbols 304 having a third color.
- the three cutout symbols 304 are arranged at positions corresponding to the vertices of the square.
- the cutout symbol 304 serves as a reference for reading the two-dimensional code. That is, in reading the two-dimensional code, the predetermined two-dimensional code can be identified by detecting the position, inclination, or size of the three cutout symbols 304 . Therefore, the cutout symbol 304 can also be called a position detection pattern.
- the number of cutout symbols 304 is not limited to three. The number of cutout symbols 304 may be, for example, one.
- a plurality of first cells 301, a plurality of second cells 302, and a plurality of third cells 303 are arranged horizontally and vertically within a rectangular area surrounded by three cutting symbols 304. .
- Information contained in the two-dimensional code is determined by the arrangement of the first cell 301, the second cell 302, or the third cell 303.
- the composite two-dimensional code 300 shown in FIG. 1 is a so-called QR code (registered trademark).
- QR code registered trademark
- the composite two-dimensional code 300 will be described below as a QR code (registered trademark), but the composite two-dimensional code 300 is not limited to the QR code (registered trademark).
- the first color, second color, and third color are arbitrary colors that are different from each other. However, it is preferable that the first color and the second color have a complementary color relationship. For example, when the first color is red, the second color is cyan. Also, when the first color is magenta, the second color is green. Also, the third color preferably has a different hue, saturation, or lightness from both the first color and the second color. For example, when the first color and the second color are complementary colors, the third color is black.
- Composite two-dimensional code 300 includes a background color different from the first color, second color, and third color. The background color is preferably white, but is not limited to this. The background color may be transparent.
- FIG. 2 is a schematic diagram showing an example of how the composite two-dimensional code 300 according to one embodiment of the present invention is used.
- FIG. 2(A) is an example in which the composite two-dimensional code 300 is printed on a printed matter 410 and the printed matter 410 is attached to an article 510.
- the composite two-dimensional code 300 can contain information on the article 510 . Since the composite two-dimensional code 300 includes the information of the article 510 , the information of the composite two-dimensional code 300 can be read from the printed matter 410 attached to the article 510 to acquire the information of the article 510 .
- the printed material 410 is, for example, paper or film, but is not limited to this.
- a means for printing the composite two-dimensional code 300 on the printed material 410 for example, a letterpress method, a lithographic method, an intaglio method, a stencil method, an electrophotographic method, an inkjet method, a laser method, or the like can be used. is not limited to Further, when printing the composite two-dimensional code 300, letterpress ink, lithographic ink, screen ink, thermosetting ink, ultraviolet curing ink, magnetic ink, UV fluorescent ink, or the like can be used, but not limited thereto.
- composite two-dimensional code 300 may be printed directly on the article 510 without the printed matter 410 intervening. Also, the composite two-dimensional code 300 may include information other than the article 510 .
- FIG. 2(B) is an example in which the composite two-dimensional code 300 is displayed as an image 420 on the display device 520.
- the composite two-dimensional code 300 can contain arbitrary information according to the manner in which the image 420 is used.
- composite two-dimensional code 300 can include payment information. The user can read the payment information of the composite two-dimensional code 300 from the image 420 and execute payment processing.
- the display device 520 is a display interface capable of displaying data or information.
- a liquid crystal display device or an OLED (Organic Light-Emitting Diode) display device can be used as the display device 520.
- composite two-dimensional code 300 is printed on printed matter 410 or article 510, or displayed on image 420 for use. Information contained in the composite two-dimensional code 300 can be obtained.
- the composite two-dimensional code 300 is composed of two two-dimensional codes. Therefore, the composite two-dimensional code 300 can contain about twice as much information as one two-dimensional code.
- one piece of information may be divided so that the two divided pieces of information are included in two two-dimensional codes, and the two pieces of information are included in each of the two two-dimensional codes. You may allow When the composite two-dimensional code 300 includes two pieces of information, the two pieces of information may be mutually related information or may be mutually unrelated independent information. The reading process of the composite two-dimensional code 300 will be described below.
- FIG. 3 is a block diagram showing the configuration of the information processing system 10 that executes reading processing of the composite two-dimensional code 300 according to one embodiment of the present invention.
- the information processing system 10 includes an information terminal 11 capable of reading the composite two-dimensional code 300.
- the information terminal 11 is, for example, a mobile phone, a smart phone, a tablet, or a personal computer, but is not limited to these.
- the printed matter 410, the article 510, or the image 420 including the composite two-dimensional code 300 is photographed using the information terminal 11, and the photographed composite two-dimensional code 300 is converted into the normal two-dimensional code. You can get the dimension code.
- the information processing system 10 can perform two-dimensional code generation processing. Further, in the information processing system 10, a program is stored in a recording medium (eg, CD-ROM, DVD-ROM, etc.), and the information terminal 11 reads out the recording medium, so that the information terminal 11 performs two-dimensional code generation processing.
- a recording medium eg, CD-ROM, DVD-ROM, etc.
- the information processing system 10 includes a control unit 100, an imaging unit 110, and a display unit 120. Also, the control unit 100 includes a first acquisition unit 101 and a second acquisition unit 102 .
- the control unit 100 is a computer that can perform arithmetic processing using data or information.
- the control unit 100 is, for example, a central processing unit (CPU), a microprocessor (Micro Processing Unit: MPU), an image processing unit (Graphics Processing Unit: GPU), or a random access memory (Random Access Memory: RAM ) and so on.
- the control unit 100 can execute a program and cause the first acquisition unit 101 and the second acquisition unit 102 to function. Details of the first acquisition unit 101 and the second acquisition unit 102 will be described later.
- the image pickup unit 110 is an image pickup device capable of photographing the printed matter 410 , the article 510 , or the image 420 .
- the imaging unit 110 can capture the printed matter 410 , the article 510 , or the image 420 including the composite two-dimensional code 300 and generate the image data 310 including the composite two-dimensional code 300 .
- a camera, a scanner, or the like can be used as the imaging unit 110 .
- the display unit 120 is a display interface capable of displaying the photographed printed matter 410 containing the composite two-dimensional code 300, the article 510, or the image 420.
- a liquid crystal display device or an OLED display device can be used as the display unit 120.
- the first acquisition unit 101 performs the first filtering process and acquires the first two-dimensional code from the image data 310 .
- the first filtering process is a color reduction process for the second color.
- the second color reduction process is a process of converting the second color to the background color.
- a first filtering operation on the image data 310 converts the second color to a background color and can eliminate the second cell 302 having the second color. Therefore, by the first filtering process, the image data 310 is divided into a plurality of first cells 301 having a first color, a plurality of third cells 303 having a third color, and three cells having a third color. is converted into a first two-dimensional code including the cut-out symbol 304 of .
- the first filtering process may be additive color processing of the second color on the image data 310 .
- the second color addition process is a process of converting the background color to the second color.
- the background of the image data 310 and the second cell 302 will have the same second color, and as a result the second cell 302 can be erased.
- a process of converting the first color of the first cell 301 may be performed.
- a first filtering process may transform a first color into a third color.
- the second acquisition unit 102 performs a second filtering process and acquires a second two-dimensional code from the image data 310.
- a second filtering process is a first color reduction process.
- the first color reduction process is a process of converting the first color to a background color.
- a first filtering operation on the image data 310 converts the first color to a background color and can eliminate the first cell 301 having the first color. Therefore, by the first filtering process, the image data 310 is divided into a plurality of second cells 302 with a second color, a plurality of third cells 303 with a third color, and three cells with a third color. is converted into a second two-dimensional code including the clipped symbol 304 of .
- the second filtering process may be additive color processing of the first color on the image data 310 .
- the first color addition process is a process of converting the background color to the first color.
- the background of the image data 310 and the first cell 301 will have the same first color, and as a result the first cell 301 can be erased.
- a process of converting the second color of the second cell 302 may be performed.
- a first filtering process may transform a second color into a third color.
- FIG. 4 is a flow chart of reading processing for the composite two-dimensional code 300 according to one embodiment of the present invention.
- FIG. 5 is a schematic diagram illustrating the first acquisition process for acquiring the first two-dimensional code 320-1 from the composite two-dimensional code 300 according to one embodiment of the present invention.
- FIG. 6 is a schematic diagram illustrating a second acquisition process for acquiring the second two-dimensional code 320-2 from the composite two-dimensional code 300 according to one embodiment of the present invention.
- the processing for reading the composite two-dimensional code 300 starts when the program for reading the composite two-dimensional code 300 is executed in the information processing system 10 .
- the imaging unit 110 generates image data 310 from the printed matter 410, article 510, or image 420 including the composite two-dimensional code 300.
- the imaging unit 110 of the information processing system 10 can generate the image data 310 by photographing the printed material 410 , the article 510 , or the image 420 using the imaging unit 110 of the information processing system 10 .
- step S110 the first acquisition unit 101 performs the first filtering process on the image data 310 and acquires the first two-dimensional code 320-1 from the image data 310.
- the first two cells 302 having the second color are erased.
- a dimension code 320-1 is generated. That is, the first two-dimensional code 320-1 includes a plurality of first cells 301 having a first color, a plurality of third cells 303 having a third color, and three cells having a third color. It includes a clipping symbol 304 .
- step S120 the second acquisition unit 102 performs a second filtering process on the image data 310 to acquire a second two-dimensional code 320-2 from the image data 310.
- a second two-dimensional image is obtained in which the first cell 301 having the first color is erased.
- a dimension code 320-2 is generated. That is, the second two-dimensional code 320-2 includes a plurality of second cells 302 having a second color, a plurality of third cells 303 having a third color, and three cells having a third color. It includes a clipping symbol 304 .
- the display unit 120 displays the first two-dimensional code 320-1 or the second two-dimensional code 320-2. Based on the displayed first two-dimensional code 320-1 or second two-dimensional code 320-2, the user can You can get the information you need.
- the reading process of the composite two-dimensional code 300 ends when step S130 is executed.
- the first acquisition unit 101 and the second acquisition unit 102 read the first two-dimensional code 320-1 and the second two-dimensional code 320-1, respectively. Get code 320-2.
- the first obtaining unit 101 further obtains information included in the first two-dimensional code 320-1
- the second obtaining unit 102 further obtains Information included in the second two-dimensional code 320-2 is acquired.
- display unit 120 displays information contained in first two-dimensional code 320-1 or second 2 two-dimensional code 320-2 can be displayed. The user can obtain information contained in the composite two-dimensional code 300 directly from the composite two-dimensional code 300 .
- the information presented to the user is not limited to the information included in first two-dimensional code 320-1 or second two-dimensional code 320-2.
- information linked to information contained in the first two-dimensional code 320-1 or the second two-dimensional code 320-2, or the first two-dimensional code 320-1 or the second two-dimensional code 320 -2 can also be presented.
- these pieces of information may be described as information associated with the two-dimensional code.
- two two-dimensional codes 320 (first two-dimensional code 320-1 and second two-dimensional code 320-2) can be obtained from the composite two-dimensional code 300.
- the two two-dimensional codes 320 may contain information related to each other, or may contain separate and independent information. The process of generating the composite two-dimensional code 300 will be described below.
- FIG. 7 is a schematic diagram for explaining the process of generating the composite two-dimensional code 300 according to one embodiment of the present invention.
- a first two-dimensional code 330-1 containing first information and a second two-dimensional code 330-2 containing second information are generated.
- the first two-dimensional code 330-1 is converted into a first color. This generates a first two-dimensional code 340-1 including a plurality of first cells having the first color and three segmented symbols.
- the second two-dimensional code 330-2 is converted into a second color. This generates a second two-dimensional code 340-2 including a plurality of second cells having a second color and three segmented symbols.
- first two-dimensional code 340-1 and the second two-dimensional code 340-2 are synthesized. Specifically, first two-dimensional code 340-1 and second two-dimensional code 340-1 and second two-dimensional code 340-2 are overlapped so that three clipped symbols of each of first two-dimensional code 340-1 and second two-dimensional code 340-2 overlap each other. It is synthesized with the two-dimensional code 340-2. At this time, the third cell where the first cell of the first two-dimensional code 340-1 and the second cell of the second two-dimensional code 340-2 overlap is converted to a third color.
- each of the first two-dimensional code 340-1 and the second two-dimensional code 340-2 are also overlapped, they are also converted to the third color.
- a composite two-dimensional code 300 is generated.
- the generated composite two-dimensional code 300 is printed on the printed material 410 or article 510, or displayed as an image 420 for use.
- the composite two-dimensional code 300 described above is a combination of the first two-dimensional code 320-1 and the second two-dimensional code 320-2 (in the generation of the composite two-dimensional code 300, the first two-dimensional The code 340-1 and the second two-dimensional code 340-2 are combined), but the composite two-dimensional code 300 may be a combination of three or more two-dimensional codes.
- n n is a natural number equal to or greater than 2
- two-dimensional codes 320 are synthesized
- the composite two-dimensional code 300 includes cells of n+1 or more colors.
- the composite two-dimensional code 300 includes a plurality of two-dimensional codes, and therefore can include more information than one two-dimensional code. Also, since the composite two-dimensional code 300 includes cells of multiple colors, it is not easy to mechanically replicate the colors or shapes accurately. Moreover, with the composite two-dimensional code 300, information can only be obtained by filtering the synthesized two-dimensional code into individual codes. Therefore, the composite two-dimensional code 300 is a two-dimensional code that can prevent not only mechanical duplication but also electronic duplication.
- ⁇ Second embodiment> A process of reading a composite two-dimensional code 300, which is different from that of the first embodiment, will be described with reference to FIGS. 8 and 9.
- the configuration of the information processing system 10A is the same as the configuration of the information processing system 10, the description thereof may be omitted.
- FIG. 8 is a block diagram showing the configuration of an information processing system 10A that executes reading processing of the composite two-dimensional code 300 according to one embodiment of the present invention.
- the information processing system 10A includes an information terminal 11A and a server 12A.
- the information terminal 11A can be connected for communication with the server 12A via the network NW.
- the network NW may be wired or wireless.
- the network NW is a LAN (Local Area Network) or the Internet, but is not limited to this.
- the information terminal 11A is a terminal capable of capturing a printed matter 410, an article 510, or an image 420 including the composite two-dimensional code 300 and generating image data 310.
- the information terminal 11A is, for example, a mobile phone, a smart phone, a tablet, or a personal computer, but is not limited to these.
- the server 12A is software or a computer that can acquire the first two-dimensional code 320-1 and the second two-dimensional code 320-2 from the image data 310 provided by the information terminal 11A.
- the server 12A may be one computer or a plurality of computers.
- the information processing system 10A includes the information terminal 11A and the server 12A, and the image data 310 generated by the information terminal 11A is transmitted to the server 12A.
- the server 12A acquires the first two-dimensional code 320-1 and the second two-dimensional code 320-2 from the transmitted image data 310.
- the information processing system 10A can also acquire the first two-dimensional code 320-1 and the second two-dimensional code 320-2 by a cloud computing method or an ASP (Application Service Provider) method.
- ASP Application Service Provider
- the information terminal 11A of the information processing system 10A includes an imaging unit 110, a display unit 120, and a first communication unit 130A.
- Server 12A of information processing system 10A includes control unit 100 and second communication unit 140A.
- the control unit 100 includes a first acquisition unit 101 and a second acquisition unit 102 .
- the first communication unit 130A and the second communication unit 140A are communication interfaces that can transmit or receive data or information by wire or wirelessly.
- a LAN module or a Wi-Fi (registered trademark) module can be used as the first communication unit 130A and the second communication unit 140A.
- FIG. 9 is a flow chart of reading processing for the composite two-dimensional code 300 according to one embodiment of the present invention.
- the reading process of the composite two-dimensional code 300 is started by executing the reading process program of the composite two-dimensional code 300 in the information terminal 11A.
- step S100 the imaging unit 110 generates image data 310 from the printed matter 410, article 510, or image 420 including the composite two-dimensional code 300.
- the first communication unit 130A transmits the image data 310.
- the transmitted image data 310 is received by the second communication unit 140A.
- step S110 the first acquisition unit 101 performs the first filtering process on the image data 310 and acquires the first two-dimensional code 320-1 from the image data 310.
- step S120 the second acquisition unit 102 performs a second filtering process on the image data 310 to acquire a second two-dimensional code 320-2 from the image data 310.
- the second communication unit 140A transmits the first two-dimensional code 320-1 and the second two-dimensional code 320-2.
- the transmitted first two-dimensional code 320-1 and second two-dimensional code 320-2 are received by first communication unit 130A.
- the display unit 120 displays the first two-dimensional code 320-1 or the second two-dimensional code 320-2.
- the reading process of the composite two-dimensional code 300 ends when step S130 is executed.
- the server 12A obtains the first two-dimensional code 320-1 and the second two-dimensional code 320-2, and the obtained first Two-dimensional code 320-1 and second two-dimensional code 320-2 are transmitted to information terminal 11A.
- the server 12A acquires the information contained in the first two-dimensional code 320-1 and the information contained in the second two-dimensional code 320-2, and the acquired first two-dimensional code 320- 1 and the information contained in the second two-dimensional code 320-2 can be transmitted to the information terminal 11A.
- step S130 display unit 120 displays information contained in first two-dimensional code 320-1 or second 2 two-dimensional code 320-2 can be displayed.
- the user can obtain information contained in the composite two-dimensional code 300 directly from the composite two-dimensional code 300 .
- the information transmitted from the server 12 to the information terminal 11A and the information displayed on the display unit 120 may be information accompanying the first two-dimensional code 320-1 or the second two-dimensional code.
- ⁇ Third Embodiment> 10 and 11 reading processing of the composite two-dimensional code 300, which is different from that of the first embodiment, will be further described.
- the composite two-dimensional code 300 is read using the information processing system 10B instead of the information processing system 10 .
- the configuration of the information processing system 10B is the same as the configuration of the information processing system 10, the description thereof may be omitted.
- FIG. 10 is a schematic diagram illustrating the configuration of an information processing system 10B that executes reading processing of the composite two-dimensional code 300 according to one embodiment of the present invention.
- the information processing system 10B includes an information terminal 11B and a color filter 13B.
- Information terminal 11B can capture printed matter 410, article 510, or image 420 including composite two-dimensional code 300 via color filter 13B to obtain information included in composite two-dimensional code 300.
- the color filter 13B can transmit light of a predetermined color.
- the color filter 13B transmitting the light of the first color is superimposed on the composite two-dimensional code 300, only the light of the first color is transmitted through the first cell 301 having the first color and the blank space for total reflection. . Therefore, the blank space and the first cell 301 appear to have the same color (that is, the first cell 301 appears to have disappeared), forming a background having the first color.
- the second cell 302 having the second color and the third cell 303 having the third color since the color filter 13B absorbs light other than the first color light and the amount of light transmitted through the color filter 13B decreases, the display becomes darker.
- the second cell 302 and the third cell 303 appear to have substantially the same color (here, for the sake of convenience, it will be described as the fourth color). Therefore, the composite two-dimensional code 300 superimposed with the color filter 13B transmitting the light of the first color is converted into a two-dimensional code including a background having the first color and cells having the fourth color. This corresponds to the second filtering process of the first embodiment.
- the color filter 13B that transmits the light of the second color is superimposed on the composite two-dimensional code 300, only the light of the second color is emitted from the second cell 302 that has the margin and the second color that are totally reflected. passes through. Therefore, the blank space and the second cell 302 appear to have the same color (that is, the second cell 302 appears to have disappeared), resulting in a background having the second color.
- the color filter 13B absorbs light other than light of the second color, and the amount of light transmitted through the color filter 13B decreases. As a result, the first cell 301 and the third cell 303 appear in the fourth color.
- the composite two-dimensional code 300 superimposed with the color filter 13B transmitting the light of the second color is converted into a two-dimensional code including a background having the second color and cells having the fourth color.
- the information terminal 11B of the information processing system 10B includes an imaging unit 110 and a display unit 120.
- FIG. 11 is a flow chart of reading processing for the composite two-dimensional code 300 according to one embodiment of the present invention.
- the reading process of the composite two-dimensional code 300 is started by executing the reading process program of the composite two-dimensional code 300 in the information processing system 10B.
- step S110B the imaging unit 110 generates image data 310B-1 from the printed matter 410, article 510, or image 420 including the composite two-dimensional code 300, which has been subjected to the first filtering process by the color filter 13B.
- Image data 310B-1 includes a first two-dimensional code 320-1. That is, in step S110B, the first two-dimensional code 320-1 is obtained.
- step S120B the imaging unit 110 generates image data 310B-2 from the printed matter 410, article 510, or image 420 including the composite two-dimensional code 300, which has been subjected to the second filtering process by the color filter 13B.
- Image data 310B-2 includes a second two-dimensional code 320-2. That is, in step S120B, the second two-dimensional code 320-2 is obtained.
- the display unit 120 displays the first two-dimensional code 320-1 or the second two-dimensional code 320-2. Based on the displayed first two-dimensional code 320-1 or second two-dimensional code 320-2, the user can You can get the information you need.
- the reading process of the composite two-dimensional code 300 ends when step S130 is executed.
- the information terminal 11B acquires the first two-dimensional code 320-1 and the second two-dimensional code 320-2.
- information terminal 11B further acquires information contained in first two-dimensional code 320-1 and information contained in second two-dimensional code 320-2.
- display unit 120 displays information contained in first two-dimensional code 320-1 or second 2 two-dimensional code 320-2 can be displayed.
- the user can obtain information contained in the composite two-dimensional code 300 directly from the composite two-dimensional code 300 .
- the user can also be presented with information accompanying the first two-dimensional code 320-1 or the second two-dimensional code.
- reading processing of a composite two-dimensional code 300 different from the first to third embodiments will be described. Specifically, the details of the first filtering process and the second filtering process will be described below.
- the processing for reading the composite two-dimensional code 300 in this embodiment can be executed using the information processing system 10.
- the first acquisition unit 101 and the second acquisition unit 102 included in the control unit 100 are Further functions can be realized. In the following, descriptions of configurations similar to those described above may be omitted.
- the first acquisition unit 101 acquires the RGB values of each of the second cell 302 and the third cell 303 from the image data 310, and when the acquired RGB values are within a predetermined range, the second cell 302 and the color of each of the third cells 303 can be converted to a third color.
- the second acquisition unit 102 acquires RGB values of each of the first cell 301 and the third cell 303 from the image data 310, and when the acquired RGB values are within a predetermined range, the first cell 301 and the color of each of the third cells 303 can be converted to a third color.
- FIG. 12 is a flow chart of reading processing for the composite two-dimensional code 300 according to one embodiment of the present invention.
- the processing for reading the composite two-dimensional code 300 starts when the program for reading the composite two-dimensional code 300 is executed in the information processing system 10 .
- step S ⁇ b>112 ⁇ /b>C the first acquisition unit 101 performs first filtering processing on the image data 310 .
- the color of each of the first cell 301, the second cell 302, and the third cell 303 of the image data 310 varies depending on the information terminal 11, the photographing method, or the photographing condition. Variations in brightness, etc. are included. Therefore, in the first filtering process in the present embodiment, the filtering process is performed in consideration of the variation of each color.
- the second , the RGB values (R 2 , G 2 , B 2 ) of the cell 302 are converted into the preset third color RGB values.
- the second and third colors are set to green (RGB values (0,128,0)) and black (RGB values (0,0,0)) respectively
- the second cell The RGB value ( R 2 , G 2 , B 2 ) to black RGB values (0,0,0). That is, the color of the second cell 302 is converted to black, which is the preset third color, regardless of variations.
- c 2 and c 2 ′ are set values that are set in advance, and arbitrary values such as 5, 10, or 20 can be set. Note that c 2 and c 2 ′ may have the same value or different values.
- the third cell 303 when the RGB values (R 3 , G 3 , B 3 ) of the third cell 303 obtained from the image data 310 are in the vicinity of the preset third color RGB values, the third cell The RGB values (R 3 , G 3 , B 3 ) of 303 are converted into RGB values of a preset third color.
- the third color is set to black (RGB values (0, 0, 0))
- R 3 , G 3 and B3 are in the range 0 ⁇ R3 , G3 , B3 ⁇ c3
- the RGB values (R3 , G3, B3 ) of the third cell 303 are replaced with the RGB values of black ( 0,0,0).
- c3 is a preset setting value, and can be set to an arbitrary value such as 5, 10, or 20, for example. Note that c 3 may be set to the same value for each of R 3 , G 3 , and B 3 , or may be set to different values.
- the RGB values of the cells other than the cells converted to the third color are converted to the RGB values (255, 255, 255) of the background color, for example white.
- the colors of the three clipped symbols 304 may be converted into a preset third color.
- each of all cells is converted to either the third color (eg, black) or the background color (eg, white).
- First acquisition unit 101 acquires the first two-dimensional code 320-1 generated by the first filtering process.
- First two-dimensional code 320-1 includes a plurality of second cells 302 and a plurality of third cells 303 having a third color, and three segmented symbols 304 having a third color.
- the second acquisition unit 102 performs second filtering processing on the image data 310 .
- the first , the RGB values (R 1 , G 1 , B 1 ) of the cell 301 are converted into RGB values of a preset third color.
- the first and third colors are set to red (RGB value (255,0,0)) and black (RGB value (0,0,0)) respectively, then the first cell RGB values ( R 1 , G 1 , B 1 ) to black RGB values (0,0,0). That is, the color of the first cell 301 is converted to black, which is the preset third color, regardless of variations.
- c1 is a preset setting value, and can be set to an arbitrary value such as 5, 10, or 20, for example.
- step S112C when the RGB values (R 3 , G 3 , B 3 ) of the third cell 303 included in the image data 310 are in the vicinity of the preset third color RGB values,
- the RGB values (R 3 , G 3 , B 3 ) of the third cell 303 are converted into RGB values of a preset third color.
- the RGB values of the cells, other than the cells converted to the third color, are then converted to the RGB values (255,255,255) of the background color, eg white.
- the colors of the three clipping symbols 304 may be converted to a preset third color.
- each of all cells is converted to either the third color (eg, black) or the background color (eg, white).
- a second two-dimensional code 320-2 includes a plurality of first cells 301 and a plurality of third cells 303 having a third color, and three segmented symbols 304 having a third color.
- step S130 is executed.
- the reading process of the composite two-dimensional code 300 ends when step S130 is executed.
- the first two-dimensional code 310-1 and the second two-dimensional code 310-2 are the colors of the image data 310. It is possible to obtain a two-dimensional code in which the third color and the background color are dichotomized regardless of variations in . Therefore, not only mechanical duplication of the two-dimensional code but also electronic duplication can be prevented.
- the first two-dimensional code 310-1 and the second two-dimensional code 310-2 displayed in step S130 are two-color two-dimensional codes, the first two-dimensional code 310-1 And the reading of the second two-dimensional code 310-2 does not require a special reader.
- FIG. 13 A reading process for a composite two-dimensional code 300D, which is different from the first to fourth embodiments, will be described with reference to FIGS. 13 to 15.
- FIG. 13 a composite two-dimensional code 300D shown in FIG. 13 is used.
- FIG. 13 is a schematic diagram showing the configuration of a composite two-dimensional code 300D according to one embodiment of the present invention.
- a composite two-dimensional code 300D includes a plurality of first cells 301 having a first color, a plurality of second cells 302 having a second color, and a plurality of cells having a third color. It includes a third cell 303, three cutout symbols 304 having a third color, and a color code pattern portion 305D. Note that in this embodiment, a plurality of first cells 301 having a first color, a plurality of second cells 302 having a second color, a plurality of third cells 303 having a third color, and A portion including three cutout symbols 304 having the third color may be referred to as a cell pattern portion.
- the color code pattern portion 305D is arranged outside the first cell 301, the second cell 302, the third cell 303, and the cutout symbol 304.
- Color code pattern portion 305D includes first color code 305D-1, second color code 305D-2, third color code 305D-3, and fourth color code 305D-4.
- First color code 305D-1, second color code 305D-2, and third color code 305D-3 correspond to the first color of first cell 301 and the second color of second cell 302, respectively.
- the third color of the third cell 303 . That is, the first color code 305D-1, the second color code 305D-2, and the third color code 305D-3 respectively have a first color, a second color, and a third color.
- the fourth color code 305D-4 has a background color.
- the read processing of the composite two-dimensional code 300D in this embodiment can be executed using the information processing system 10D.
- the configuration of the information processing system 10D is the same as the configuration of the information processing system 10
- the description of the configuration of the information processing system 10D may be omitted.
- FIG. 14 is a block diagram showing the configuration of an information processing system 10D that executes reading processing of a composite two-dimensional code 300D according to one embodiment of the present invention.
- control unit 100 of the information processing system 10D includes a first acquisition unit 101, a second acquisition unit 102, and a calculation unit 103D.
- Calculation unit 103D calculates first color code 305D-1, second color code 305D-2, third color code 305D-3, and fourth color code 305D of color code pattern portion 305D from image data 310. -4 RGB values can be obtained. Further, the calculation unit 103D can calculate a difference value between the acquired RGB value and the RGB value of a preset color. Further, the calculation unit 103D can add the calculated difference value to the RGB values obtained from the image data 310 .
- the color correction processing of the image data 310 will be described as a process different from the first filtering process and the second filtering process for convenience, but at least the first filtering process and the second filtering process One of them may include color correction processing of the image data 310 .
- FIG. 15 is a flow chart of reading processing for a composite two-dimensional code 300D according to one embodiment of the present invention.
- the processing for reading the composite two-dimensional code 300D is started by executing the reading processing program for the composite two-dimensional code 300D in the information processing system 10.
- step S102D the calculation unit calculates from the image data 310 the first color code 305D-1, the second color code 305D-2, the third color code 305D-3, and the fourth color code 305D-3 of the color code pattern portion 305D. Obtain the respective RGB values of the color code 305D-4. Further, the calculation unit calculates a difference value (hereinafter referred to as a “first difference value”) between the preset RGB value of the first color and the acquired RGB value of the first color code 305D-1. calculate. Similarly, the calculator calculates a difference value between the preset RGB value of the second color and the acquired RGB value of the second color code 305D-2 (hereinafter referred to as "second difference value").
- first difference value a difference value between the preset RGB value of the second color and the acquired RGB value of the second color code 305D-2 (hereinafter referred to as "second difference value”).
- the difference value between the preset RGB value of the third color and the acquired RGB value of the third color code 305D-3 (hereinafter referred to as “third difference value”), and the preset A difference value between the RGB value of the background color and the RGB value of the fourth color code 305D-4 (hereinafter referred to as "fourth difference value”) is calculated. This makes it possible to detect the difference between the color of the composite two-dimensional code 300D and the color of the image data 310 due to the difference in the information terminal 11, the difference in the photographing method, the photographing condition, or the like.
- step S104D the calculator calculates the first cell 301 and the second cell 302 of the image data 310 based on the first difference value, the second difference value, the third difference value, and the fourth difference value.
- the third cell 303, and the clipping symbol 304, as well as the background color are corrected.
- a first difference value is added to the RGB values of the first cell 301 obtained from the image data 310 .
- a second difference value is added to the RGB values of the second cell 302
- a third difference value is added to the RGB values of each of the third cell 303 and the segmented symbol 304, and the RGB values of the background color are added.
- a fourth difference value is added to the value.
- the color of the image data 310 is corrected and can be brought closer to the color of the composite two-dimensional code 300D.
- step S112C is executed, but since the subsequent steps have been described in the fourth embodiment, descriptions thereof will be omitted here. Note that the steps after S110 described in the first embodiment can also be performed instead of the steps after step S112C. In this case, in step S130, first two-dimensional code 310-1 and second two-dimensional code 310-2 having colors close to composite two-dimensional code 300 can be displayed.
- the first color code 305D-1, second color code 305D-2, third color code 305D-3, and The first filtering process and the second filtering process may be performed using each RGB value of the fourth color code 305D-4 as a reference.
- the configuration of the color code portion included in the composite two-dimensional code 300D is not limited to the color code 305 portion D shown in FIG. Another configuration of the color code portion will be described with reference to FIG.
- FIG. 16 is a schematic diagram showing the configuration of another color code portion included in the composite two-dimensional code 300D according to one embodiment of the present invention.
- the color code portion 305E shown in FIG. 16(A) includes a first color code 305E-1, a second color code 305E-2, and a third color code 305E-3.
- the first color code 305E-1, second color code 305E-2, and third color code 305E-3 are red (R), green (G), and blue (B), respectively.
- Any of the first color code 305E-1, the second color code 305E-2, and the third color code 305E-3 are the first color of the first cell 301 and the Different from the second color and the third color of the third cell 303 .
- the RGB values of red (R) are (255,0,0)
- the RGB values of green (G) are (0,255,0)
- the RGB values of blue (B) are (0 , 0,255). Therefore, the RGB values of each of the first color code 305E-1, the second color code 305E-2, and the third color code 305E-3 are obtained from the image data 310, and the obtained first color code 305E-1, the second color code 305E-2, and the third color code 305E-3 correspond to red (R), green (G), and blue (B), respectively.
- the shift amount (difference value ⁇ R) from the RGB values of red (R) from the RGB values of the obtained first color code 305E-1, and the green (G) from the acquired RGB values of the second color code 305E-2 and the shift amount (difference value ⁇ B) from the RGB values of blue (B) can be calculated from the acquired RGB values of the third color code 305E-3. can. Therefore, in any of the first cell 301, the second cell 302, and the third cell 303, the color of the image data 310 can be obtained by adding the difference values ( ⁇ R, ⁇ G, ⁇ B) to the respective RGB values. is corrected, and the color can be approximated to the composite two-dimensional code 300D.
- the color code portion 305F shown in FIG. 16B includes a first color code 305F-1, a second color code 305F-2, a third color code 305F-3, and a fourth color code 305F-4.
- First color code 305F-1, second color code 305F-2, third color code 305F-3, and fourth color code 305F-4 are respectively cyan (C), magenta (M), yellow (Y) and black (K). Any of the first color code 305F-1, second color code 305F-2, third color code 305F-3, and fourth color code 305F-4 are , the second color of the second cell 302 , and the third color of the third cell 303 .
- the CMYK values of cyan (C) are (100, 0, 0, 0), the CMYK values of magenta (M) are (0, 100, 0, 0), and the CMYK values of yellow (Y) are The CMYK values are (0,0,100,0) and the CMYK values for black (K) are (0,0,0,100).
- the RGB values of cyan (C) are (0, 174, 239), the RGB values of magenta (M) are (255, 0, 255), and the RGB values of yellow (Y) are (255 , 255,0), and the RGB values of black (K) are (0,0,0).
- the RGB values of the first color code 305F-1, the second color code 305F-2, the third color code 305F-3, and the fourth color code 305F-4 are obtained from the image data 310.
- the difference values are calculated in correspondence with the RGB values of cyan (C), magenta (M), yellow (Y), and black (K), respectively.
- Each difference value ⁇ K of 305F-5 is as shown in formula (1).
- the first The difference values ( ⁇ R 1 , ⁇ G 1 , ⁇ B 1 ) of the RGB values of the cell 301 can be calculated by Equation (2).
- ⁇ is a weighting factor, which can vary according to the preset CMYK values or RGB values of cyan (C), magenta (M), yellow (Y), and black (K) described above.
- Equation (2) is the difference value of the RGB value of the first cell 301, but the difference value of each of the RGB value of the second cell 302, the RGB value of the third cell 303, and the RGB value of the background color. can be similarly calculated. Therefore, by adding the difference values ( ⁇ R, ⁇ G, ⁇ B) to the respective RGB values, the image data 310 is corrected, and the color can be brought closer to the color of the composite two-dimensional code 300D.
- the composite two-dimensional code 300D reading process according to the present embodiment, even if the color of the image data 310 is different from the color of the composite two-dimensional code 300, the first two-dimensional code 310-1 and the second two-dimensional code 310-2 can be corrected to a color close to the composite two-dimensional code 300. FIG. Therefore, not only mechanical duplication of the two-dimensional code but also electronic duplication can be prevented.
- the first acquisition unit 101 can read the first two-dimensional code 320-1 generated by the first filtering process and acquire information contained in the first two-dimensional code 320-1. .
- the second acquisition unit 102 can count the number of cells converted by the second filtering process. Also, the second acquisition unit 102 determines whether or not a predetermined condition is satisfied based on the information acquired by the first acquisition unit 101 and the information acquired by the second acquisition unit 102 counting. can be done.
- FIG. 17 is a flowchart of reading processing for the composite two-dimensional code 300 according to one embodiment of the present invention.
- the processing for reading the composite two-dimensional code 300 starts when the program for reading the composite two-dimensional code 300 is executed in the information processing system 10 .
- step S112G the first acquisition unit 101 performs a first filtering process on the image data 310.
- the first filtering process is described as a color reduction process, but the first filtering process in the present embodiment is not limited to this.
- the second cells 302 having the second color are eliminated. Specifically, the color of the second cell 302 is converted from the second color to the background color.
- the first color of the first cell 301, the second color of the second cell 302, the third color of the third cell 303, and the background color are adjusted. good. For example, each of the first and second colors may be adjusted for saturation, and each of the third and background colors may be adjusted for brightness. The colors are adjusted in this manner to accentuate the outline of the second cell 302 having the second color, and the borders of the first, second and third cells 301, 302 and 303 respectively. can be clarified.
- the second cells 302 having the second color may be eliminated from the adjusted image data 310 . If the background color is not white, the background color may be adjusted to white when the image data 310 is adjusted.
- the first acquisition unit 101 acquires the first two-dimensional code 320-1 generated by the first filtering process.
- the first two-dimensional code 320-1 includes a plurality of first cells 301 having a first color, a plurality of third cells 303 having a third color, and three cutouts having a third color. Includes symbols 304 .
- the first two-dimensional code 320-1 obtained may have the first color converted to the third color. That is, the obtained first two-dimensional code 320-1 is a two-dimensional code converted into two colors, the third color of the plurality of third cells 303 and the three cutout symbols 304, and the background color. may be
- the first acquisition unit 101 reads the first two-dimensional code 320-1 and acquires information contained in the first two-dimensional code 320-1.
- the first two-dimensional code 320-1 includes information about the number of first cells in the composite two-dimensional code 300 (hereinafter referred to as "first cell contained number information"). ing. That is, in step S116G, the contained number information of the first cell is obtained.
- step S122G the second acquisition unit 102 performs a second filtering process on the image data 310.
- the second filtering process will be described as a color reduction process, but the second filtering process in this embodiment is not limited to this.
- the first cell 301 having the first color is eliminated. Specifically, the color of the first cell 301 is converted from the first color to the background color.
- the second filtering process may eliminate the first cell 301 having the first color from the image data 310 adjusted by the first filtering process. Also, in the second filtering process, the number of erased first cells 301 is counted. That is, in the second filtering process, information about the number of erased first cells 301 (hereinafter referred to as "first cell erased number information”) is acquired.
- step S123G the second acquisition unit 102 determines whether or not a predetermined condition is satisfied based on the contained number information of the first cell and the erased number information of the first cell.
- the predetermined condition is that the erased number information of the first cell is in the range of (1 ⁇ a) times the contained number information of the first cell or more and (1+a) times or less of the contained number information of the first cell. included or not.
- a is a preset value, and can be set to any value such as 0.05, 0.1, or 0.15. If the predetermined condition is satisfied (step S123G: YES), step S124G is executed.
- step S123G NO
- the process of reading the composite two-dimensional code 300 ends.
- an alert indicating that the composite two-dimensional code 300 could not be read may be generated and presented to the user.
- the first acquisition unit 101 acquires the second two-dimensional code 320-2 generated by the second filtering process.
- the second two-dimensional code 320-2 includes a plurality of second cells 302 having a second color, a plurality of third cells 303 having a third color, and three cutouts having a third color. Includes symbols 304 .
- the acquired second two-dimensional code 320-2 may have the second color converted into a third color. That is, the obtained second two-dimensional code 320-2 is a two-dimensional code converted into two colors, the third color of the plurality of third cells 303 and the three cutout symbols 304, and the background color. may be
- step S130 is executed.
- the reading process of the composite two-dimensional code 300 ends when step S130 is executed.
- the information on the number of first cells included in first two-dimensional code 320-1 may be plural instead of one.
- the composite two-dimensional code 300 is divided into four areas, three areas each containing one cutout symbol 304 and one area not containing the cutout symbol 304, and the number information contained in the first cell is It may be information about the number of first cells included in each of the four regions.
- the number of erased first cells 301 is counted in each of the four areas of image data 310 corresponding to the four areas of composite two-dimensional code 300 . That is, the erased number information of the first cells includes the erased number of the four first cells 301 in each of the four regions.
- the number of divided regions is not limited to four. Also, the plurality of regions may be continuous or discontinuous. Furthermore, the areas of the multiple regions may be the same or different.
- step S123G it is determined whether or not the predetermined conditions described above are satisfied in each of the four regions. Further, in step S123G, determination may be made based on determination results in four areas. Specifically, when the number of regions determined to satisfy the predetermined condition is equal to or greater than a preset value, step S123G is executed to acquire the second two-dimensional code 320-2. On the other hand, if the number of regions determined to satisfy the predetermined condition is less than the preset value, the processing of reading the composite two-dimensional code 300 ends.
- the predetermined condition in step S123G is not limited to the condition based on the contained number information of the first cell and the erased number information of the first cell.
- the first two-dimensional code 320-1 contains information about the ratio of the first cell to the rectangle surrounded by the three cut-out symbols of the composite two-dimensional code 300 (hereinafter referred to as "first cell content ratio information ), and in step S116G, the ratio information of the first cell may be obtained.
- first cell erase ratio information information about the ratio of the erased first cell 301 to the rectangle surrounded by the three cutout symbols 304 of the image data 310 (hereinafter referred to as "first cell erase ratio information").
- the erase ratio information of the first cell is included in the range of (1-a) times or more of the content ratio information of the first cell and not more than (1+a) times the content ratio information of the first cell. It is determined whether or not
- step S116G add cells to or delete cells from the first two-dimensional code 320-1 instead of directly reading the first two-dimensional code 320-1
- the number-of-contents information of the first cell may be obtained by reading the two-dimensional code that has been subjected to the processing to do.
- the dimensional code contains information on the number of cells contained in the first cell, and the first two-dimensional code 320-1 can contain other information.
- a predetermined area of the first two-dimensional code 320-1 may be extracted, and the contained number information of the first cell may be obtained based on the area pattern of the extracted area.
- a database in which an area pattern is associated with the first contained number information is registered in advance, and the contained number information of the first cell is acquired by comparing the area pattern of the extracted area with the database. good.
- the second two-dimensional code 320-2 when acquiring the second two-dimensional code 320-2, the generated first two-dimensional code 320-1 or based on the information obtained using the generated first two-dimensional code 320-1, a parameter under a predetermined determination condition is obtained, and it is determined whether or not the predetermined determination condition is satisfied. is done. Therefore, the second two-dimensional code 320-2 can be acquired when a predetermined condition is satisfied. Therefore, not only mechanical duplication of the two-dimensional code but also electronic duplication can be prevented.
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Abstract
Description
図1~図7を参照して、本発明の一実施形態に係る複合二次元コード300について説明する。
図1は、本発明の一実施形態に係る複合二次元コード300の構成を示す模式図である。
図3は、本発明の一実施形態に係る複合二次元コード300の読み取り処理を実行する情報処理システム10の構成を示すブロック図である。
上述の第1実施形態に係る複合二次元コード300の読み取り処理では、第1の取得部101および第2の取得部102は、それぞれ、第1の二次元コード320-1および第2の二次元コード320-2を取得する。本変形例では、ステップS110において、第1の取得部101が、さらに、第1の二次元コード320-1に含まれる情報を取得し、ステップS120において、第2の取得部102が、さらに、第2の二次元コード320-2に含まれる情報を取得する。この場合、ステップS130において、表示部120は、第1の二次元コード320-1または第2の二次元コード320-2に代えて、第1の二次元コード320-1に含まれる情報または第2の二次元コード320-2に含まれる情報を表示することができる。ユーザは、複合二次元コード300から、直接複合二次元コード300に含まれる情報を取得することができる。
図7は、本発明の一実施形態に係る複合二次元コード300の生成処理を説明する模式図である。
上述した複合二次元コード300は、第1の二次元コード320-1と第2の二次元コード320-2とが合成されたもの(複合二次元コード300の生成においては、第1の二次元コード340-1と第2の二次元コード340-2とが合成されたもの)であるが、複合二次元コード300は、3個以上の二次元コードが合成されたものであってもよい。n個(nは2以上の自然数)の二次元コード320が合成される場合、複合二次元コード300は、n+1種類以上の色からなるセルを含む。
図8および図9を参照して、第1実施形態とは異なる複合二次元コード300の読み取り処理について説明する。具体的には、本実施形態においては、情報処理システム10の代わりに情報処理システム10Aを用いて、複合二次元コード300の読み取り処理が実行される。なお、情報処理システム10Aの構成が、情報処理システム10の構成と同様であるとき、その説明を省略する場合がある。
上述の第2実施形態に係る複合二次元コード300の読み取り処理では、サーバ12Aが、第1の二次元コード320-1および第2の二次元コード320-2を取得し、取得した第1の二次元コード320-1および第2の二次元コード320-2を情報端末11Aに送信する。本変形例では、サーバ12Aが、第1の二次元コード320-1に含まれる情報および第2の二次元コード320-2に含まれる情報を取得し、取得した第1の二次元コード320-1に含まれる情報および第2の二次元コード320-2に含まれる情報を情報端末11Aに送信することができる。この場合、ステップS130において、表示部120は、第1の二次元コード320-1または第2の二次元コード320-2に代えて、第1の二次元コード320-1に含まれる情報または第2の二次元コード320-2に含まれる情報を表示することができる。ユーザは、複合二次元コード300から、直接複合二次元コード300に含まれる情報を取得することができる。なお、サーバ12から情報端末11Aに送信する情報および表示部120に表示する情報は、第1の二次元コード320-1または第2の二次元コードに付随する情報でもよい。
図10および図11を参照して、さらに、第1実施形態とは異なる複合二次元コード300の読み取り処理について説明する。具体的には、本実施形態においては、情報処理システム10の代わりに情報処理システム10Bを用いて、複合二次元コード300の読み取りが実行される。なお、情報処理システム10Bの構成が、情報処理システム10の構成と同様であるとき、その説明を省略する場合がある。
上述の第3実施形態に係る複合二次元コード300の読み取り処理では、情報端末11Bが、第1の二次元コード320-1および第2の二次元コード320-2を取得する。本変形例では、情報端末11Bが、さらに、第1の二次元コード320-1に含まれる情報および第2の二次元コード320-2に含まれる情報を取得する。この場合、ステップS130において、表示部120は、第1の二次元コード320-1または第2の二次元コード320-2に代えて、第1の二次元コード320-1に含まれる情報または第2の二次元コード320-2に含まれる情報を表示することができる。ユーザは、複合二次元コード300から、直接複合二次元コード300に含まれる情報を取得することができる。なお、ユーザには、第1の二次元コード320-1または第2の二次元コードに付随する情報を提示することもできる。
図12を参照して、第1実施形態~第3実施形態とは異なる複合二次元コード300の読み取り処理について説明する。具体的には、以下では、第1のフィルタリング処理および第2のフィルタリング処理の詳細について説明する。本実施形態における複合二次元コード300の読み取り処理は、情報処理システム10を利用して実行することができるが、制御部100に含まれる第1の取得部101および第2の取得部102は、さらなる機能を実現することができる。以下では、上述した構成と同様の構成については、その説明を省略する場合がある。
図13~図15を参照して、第1実施形態~第4実施形態とは異なる複合二次元コード300Dの読み取り処理について説明する。本実施形態においては、図13に示す複合二次元コード300Dが使用される。
複合二次元コード300Dに含まれるカラーコード部の構成は、図13に示すカラーコード305部Dに限られない。図16を参照して、カラーコード部の別の構成について説明する。
図17を参照して、第1実施形態~第5実施形態とは異なる複合二次元コード300の読み取り処理について説明する。本実施形態における複合二次元コード300の読み取り処理は、情報処理システム10を利用して実行することができるが、制御部100に含まれる第1の取得部101および第2の取得部102は、さらなる機能を実現することができる。以下では、上述した構成と同様の構成については、その説明を省略する場合がある。
第1の二次元コード320-1に含まれる第1のセルの含有個数情報は、1つではなく、複数であってもよい。例えば、複合二次元コード300を、各々が1個の切り出しシンボル304を含む3つの領域および切り出しシンボル304を含まない1つの領域の4つの領域に分割し、第1のセルの含有個数情報は、4つの領域のそれぞれに含まれる第1のセルの個数に関する情報であってもよい。この場合、ステップS112Cでは、複合二次元コード300の4つの領域と対応した画像データ310の4つの領域のそれぞれにおいて、消去された第1のセル301の個数がカウントされる。すなわち、第1のセルの消去個数情報は、4つの領域のそれぞれにおける4つの第1のセル301の消去個数を含む。
ステップS123Gにおける所定の条件は、第1のセルの含有個数情報および第1のセルの消去個数情報に基づく条件に限られない。例えば、第1の二次元コード320-1には、複合二次元コード300の3個の切り出しシンボルによって囲まれる矩形に対する第1のセルの割合に関する情報(以下、「第1のセルの含有割合情報」とする。)が含まれ、ステップS116Gにおいて、第1のセルの割合情報が取得されてもよい。この場合、ステップS122Gでは、画像データ310の3個の切り出しシンボル304によって囲まれる矩形に対する消去された第1のセル301の割合に関する情報(以下、「第1のセルの消去割合情報」とする。)が取得される。したがって、ステップS123Gでは、第1のセルの消去割合情報が、第1のセルの含有割合情報の(1-a)倍以上第1のセルの含有割合情報の(1+a)倍以下の範囲に含まれるか否かが判定される。
ステップS116Gにおいて、第1の二次元コード320-1が直接読み取られるのではなく、第1の二次元コード320-1にセルを追加し、または第1の二次元コード320-1からセルを削除する処理が行われた二次元コードを読み取ることによって、第1のセルの含有個数情報が取得されてもよい。この場合、第1の二次元コード320-1の予め設定された領域にセルが追加された二次元コードまたは第1の二次元コード320-1の予め設定された領域からセルが削除された二次元コードが、第1のセルの含有個数情報を含んでおり、第1の二次元コード320-1は別の情報を含むことができる。
11、11A、11B:情報端末
12A:サーバ
13B:カラーフィルタ
100:制御部
101:第1の取得部
102:第2の取得部
103D:算出部
110:撮像部
120:表示部
130A:第1の通信部
140A:第2の通信部
300:複合二次元コード
301:第1のセル
302:第2のセル
303:第3のセル
304:切り出しシンボル
305D:カラーコードパターン部
305D-1:第1のカラーコード
305D-2:第2のカラーコード
305D-3:第3のカラーコード
305D-4:第4のカラーコード
310、310B-1、310B-2:画像データ
320:二次元コード
320-1:第1の二次元コード
320-2:第2の二次元コード
330-1:第1の二次元コード
330-2:第2の二次元コード
340-1:第1の二次元コード
340-2:第2の二次元コード
410:印刷物
420:画像
510:物品
520:表示装置
Claims (39)
- 第1の二次元コードと第2の二次元コードとが合成され、第1の色を有する第1のセル、第2の色を有する第2のセル、および第3の色を有する第3のセルを含む、複合二次元コードであって、
前記第1の色、前記第2の色、および前記第3の色は、互いに異なり、
前記第1の二次元コードは、第1のフィルタリング処理によって取得され、
前記第2の二次元コードは、第2のフィルタリング処理によって取得される、複合二次元コード。 - 前記第1のフィルタリング処理は、前記第2の色の減色処理または加色処理であり、
前記第2のフィルタリング処理は、前記第1の色の減色処理または加色処理である、請求項1に記載の複合二次元コード。 - さらに、第4の色を有する第1のカラーコード、第5の色を有する第2のカラーコード、および第6の色を有する第3のカラーコードを含み、
前記第4の色、前記第5の色、および前記第6の色は、互いに異なり、
前記第1の二次元コードは、さらに、前記第1のカラーコード、前記第2のカラーコード、および前記第3のカラーコードの少なくとも1つに基づく色補正を含む前記第1のフィルタリング処理によって取得され、
前記第2の二次元コードは、さらに、前記第1のカラーコード、前記第2のカラーコード、および前記第3のカラーコードの少なくとも1つに基づく色補正を含む前記第2のフィルタリング処理によって取得される、請求項1に記載の複合二次元コード。 - 前記第1の色、前記第2の色、および前記第3の色は、それぞれ、前記第4の色、前記第5の色、および前記第6の色と同一である、請求項3に記載の複合二次元コード。
- 前記第4の色、前記第5の色、および前記第6の色は、それぞれ、赤色、緑色、および青色である、請求項3に記載の複合二次元コード。
- 前記第4の色、前記第5の色、および前記第6の色は、それぞれ、シアン、マゼンタ、黄色である、請求項3に記載の複合二次元コード。
- 前記第1の色と前記第2の色とは、補色の関係にある、請求項1乃至請求項6のいずれか一項に記載の複合二次元コード。
- 前記第3の色は、黒色である、請求項1乃至請求項6のいずれか一項に記載の複合二次元コード。
- 請求項1乃至請求項6のいずれか一項に記載の二次元コードが印刷された印刷物。
- 第1の色を有する第1のセル、第2の色を有する第2のセル、および第3の色を有する第3のセルを含む複合二次元コードに対して第1のフィルタリング処理を行い、第1の二次元コードを取得する第1の取得部と、
前記複合二次元コードに対して第2のフィルタリング処理を行い、第2の二次元コードを取得する第2の取得部と、を含む、情報処理システム。 - 前記第1のフィルタリング処理は、前記第2の色の減色処理または加色処理であり、
前記第2のフィルタリング処理は、前記第1の色の減色処理または加色処理である、請求項10に記載の情報処理システム。 - 前記第1の取得部は、前記複合二次元コードの画像データから前記第2のセルのRGB値を取得し、前記第2のセルのRGB値が前記第2の色のRGB値を基準とした第1の範囲内に含まれるとき、前記第2のセルの色を前記第3の色に変換する前記第1のフィルタリング処理を行い、前記第3の色を有する前記第2のセルおよび前記第3のセルを含む前記第1の二次元コードを取得し、
前記第2の取得部は、前記画像データから前記第1のセルのRGB値を取得し、前記第1のセルのRGB値が前記第1の色のRGB値を基準とした第2の範囲内に含まれるとき、前記第1のセルの色を前記第3の色に変換する前記第2のフィルタリング処理を行い、前記第3の色を有する前記第1のセルおよび前記第3のセルを含む前記第2の二次元コードを取得する、請求項10に記載の情報処理システム。 - 前記第1のフィルタリング処理では、さらに、前記第1の範囲内に含まれない前記第2のセルの色および前記第1のセルの色を前記複合二次元コードの背景色に変換し、
前記第2のフィルタリング処理では、さらに、前記第2の範囲内に含まれない前記第1のセルの色および前記第2のセルの色を前記複合二次元コードの背景色に変換する、請求項12に記載の情報処理システム。 - 前記複合二次元コードは、さらに、第4の色を有する第1のカラーコード、第5の色を有する第2のカラーコード、第6の色を有する第3のカラーコードを含み、
さらに、前記画像データにおいて、前記第1のカラーコードのRGB値と第4の色のRGB値との第1の差分値、前記第2のカラーコードのRGB値と第5の色のRGB値との第2の差分値、および前記第3のカラーコードのRGB値と第6の色のRGB値との第3の差分値を算出し、前記第1の差分値、前記第2の差分値、および前記第3の差分値の少なくとも1つに基づき、前記第1のセル、前記第2のセル、および前記第3のセルの色を補正する算出部を含む、請求項12に記載の情報処理システム。 - 前記第1のフィルタリング処理では、さらに、前記第1の範囲内に含まれない前記第2のセルの色および前記第1のセルの色を前記複合二次元コードの背景色に変換し、
前記第2のフィルタリング処理では、さらに、前記第2の範囲内に含まれない前記第1のセルの色および前記第2のセルの色を前記複合二次元コードの背景色に変換する、請求項14に記載の情報処理システム。 - 前記第1の色、前記第2の色、および前記第3の色は、それぞれ、前記第4の色、前記第5の色、および前記第6の色と同一である、請求項14に記載の情報処理システム。
- 前記第4の色、前記第5の色、および前記第6の色は、それぞれ、赤色、緑色、および青色である、請求項14に記載の情報処理システム。
- 前記第4の色、前記第5の色、および前記第6の色は、それぞれ、シアン、マゼンタ、黄色である、請求項14に記載の情報処理システム。
- 前記第1の取得部は、前記複合二次元コードの画像データにおいて、前記第2の色を有する第2のセルを変換する前記第1のフィルタリング処理を行い、前記第1の色を有する第1のセルおよび前記第3の色を有する第3のセルを含む前記第1の二次元コードを取得した後、取得された前記第1の二次元コードに基づき、前記複合二次元コードに含まれる前記第1の色を有する第1のセルの個数に関する第1の個数情報を取得し、
前記第2の取得部は、前記画像データにおいて、前記第1の色を有する第1のセルを変換する前記第2のフィルタリング処理を行い、変換された前記第1の色を有する第1のセルの個数に関する第2の個数情報を取得し、前記第2の個数情報が前記第1の個数情報に基づく所定の条件を満たすとき、前記第2の色を有する第2のセルおよび前記第3の色を有する第3のセルを含む前記第2の二次元コードを取得する、請求項10に記載の情報処理システム。 - 前記所定の条件は、前記第2の個数情報が、前記第1の個数情報の(1-a)倍以上前記第1の個数情報の(1+a)倍以下の範囲内であり、
aは、予め設定された設定値である、請求項19に記載の情報処理システム。 - 前記第1の取得部は、前記複合二次元コードの画像データにおいて、前記第2の色を有する第2のセルを変換する前記第1のフィルタリング処理を行い、前記第1の色を有する第1のセルおよび前記第3の色を有する第3のセルを含む前記第1の二次元コードを取得した後、取得された前記第1の二次元コードに基づき、前記複合二次元コードに対して前記第1の色を有する第1のセルが占める割合に関する第1の割合情報を取得し、
前記第2の取得部は、前記画像データにおいて、前記第1の色を有する第1のセルを変換する前記第2のフィルタリング処理を行い、前記複合二次元コードに対して変換された前記第1の色を有する第1のセルが占める割合に関する第2の割合情報を取得し、前記第2の割合情報が前記第1の割合情報に基づく所定の条件を満たすときに前記第2の色を有する第2のセルおよび前記第3の色を有する第3のセルを含む前記第2の二次元コードを取得する、請求項10に記載の情報処理システム。 - 前記所定の条件は、前記第2の割合情報が、前記第1の割合情報の(1-a)倍以上前記第1の割合情報の(1+a)倍以下の範囲内であり、
aは、予め設定された設定値である、請求項21に記載の情報処理システム。 - 前記第1の色と前記第2の色とは、補色の関係にある、請求項10乃至請求項22のいずれか一項に記載の情報処理システム。
- 前記第3の色は、黒色である、請求項10乃至請求項22のいずれか一項に記載の情報処理システム。
- コンピュータに、
第1の色を有する第1のセル、第2の色を有する第2のセル、および第3の色を有する第3のセルを含む複合二次元コードに対して第1のフィルタリング処理を行い、第1の二次元コードを取得し、
前記複合二次元コードに対して第2のフィルタリング処理を行い、第2の二次元コードを取得する、ことを実行させるためのプログラム。 - 前記第1のフィルタリング処理は、前記第2の色の減色処理または加色処理であり
前記第2のフィルタリング処理は、前記第1の色の減色処理または加色処理である、請求項25に記載のプログラム。 - 前記第1のフィルタリング処理では、前記複合二次元コードの画像データから前記第2のセルのRGB値を取得し、前記第2のセルのRGB値が前記第2の色のRGB値を基準とした第1の範囲内に含まれるとき、前記第2のセルの色を前記第3の色に変換し、
前記第2のフィルタリング処理では、前記画像データから前記第1のセルのRGB値を取得し、前記第1のセルのRGB値が前記第1の色のRGB値を基準とした第2の範囲内に含まれるとき、前記第1のセルの色を前記第3の色に変換し、
前記第1の二次元コードは、前記第3の色を有する前記第2のセルおよび前記第3のセルを含み、
前記第2の二次元コードは、前記第3の色を有する第1のセルおよび前記第3のセルを含む、請求項25に記載のプログラム。 - 前記第1のフィルタリング処理では、さらに、前記第1の範囲内に含まれない前記第2のセルの色および前記第1のセルの色を前記複合二次元コードの背景色に変換し、
前記第2のフィルタリング処理では、さらに、前記第2の範囲内に含まれない前記第1のセルの色および前記第2のセルの色を前記複合二次元コードの背景色に変換する、請求項27に記載のプログラム。 - 前記複合二次元コードは、さらに、第4の色を有する第1のカラーコード、第5の色を有する第2のカラーコード、第6の色を有する第3のカラーコードを含み、
前記コンピュータに、さらに、前記画像データにおいて、前記第1のカラーコードのRGB値と第4の色のRGB値との第1の差分値、前記第2のカラーコードのRGB値と第5の色のRGB値との第2の差分値、および前記第3のカラーコードのRGB値と第6の色のRGB値との第3の差分値を算出し、前記第1の差分値、前記第2の差分値、および前記第3の差分値の少なくとも1つに基づき、前記第1のセル、前記第2のセル、および前記第3のセルの色を補正する、ことを実行させる、請求項27に記載のプログラム。 - 前記第1のフィルタリング処理では、さらに、前記第1の範囲内に含まれない前記第2のセルの色および前記第1のセルの色を前記複合二次元コードの背景色に変換し、
前記第2のフィルタリング処理では、さらに、前記第2の範囲内に含まれない前記第1のセルの色および前記第2のセルの色を前記複合二次元コードの背景色に変換する、請求項29に記載のプログラム。 - 前記第1の色、前記第2の色、および前記第3の色は、それぞれ、前記第4の色、前記第5の色、および前記第6の色と同一である、請求項29に記載のプログラム。
- 前記第4の色、前記第5の色、および前記第6の色は、それぞれ、赤色、緑色、および青色である、請求項29に記載のプログラム。
- 前記第4の色、前記第5の色、および前記第6の色は、それぞれ、シアン、マゼンタ、黄色である、請求項29に記載のプログラム。
- 前記複合二次元コードの画像データにおいて、前記第2の色を有する第2のセルを変換する前記第1のフィルタリング処理を行い、前記第1の色を有する第1のセルおよび前記第3の色を有する第3のセルを含む前記第1の二次元コードを取得した後、取得された前記第1の二次元コードに基づき、前記複合二次元コードに含まれる前記第1の色を有する第1のセルの個数に関する第1の個数情報を取得し、
前記画像データにおいて、前記第1の色を有する第1のセルを変換する前記第2のフィルタリング処理を行い、変換された前記第1の色を有する第1のセルの個数に関する第2の個数情報を取得し、前記第2の個数情報が前記第1の個数情報に基づく所定の条件を満たすとき、前記第2の色を有する第2のセルおよび前記第3の色を有する第3のセルを含む前記第2の二次元コードを取得する、請求項27に記載のプログラム。 - 前記所定の条件は、前記第2の個数情報が、前記第1の個数情報の(1-a)倍以上前記第1の個数情報の(1+a)倍以下の範囲内であり、
aは、予め設定された設定値である、請求項34に記載のプログラム。 - 前記複合二次元コードの画像データにおいて、前記第2の色を有する第2のセルを変換する前記第1のフィルタリング処理を行い、前記第1の色を有する第1のセルおよび前記第3の色を有する第3のセルを含む前記第1の二次元コードを取得した後、取得された前記第1の二次元コードに基づき、前記複合二次元コードに対して前記第1の色を有する第1のセルが占める割合に関する第1の割合情報を取得し、
前記画像データにおいて、前記第1の色を有する第1のセルを変換する前記第2のフィルタリング処理を行い、前記複合二次元コードに対して変換された前記第1の色を有する第1のセルが占める割合に関する第2の割合情報を取得し、前記第2の割合情報が前記第1の割合情報に基づく所定の条件を満たすときに前記第2の色を有する第2のセルおよび前記第3の色を有する第3のセルを含む前記第2の二次元コードを取得する、請求項27に記載のプログラム。 - 前記所定の条件は、前記第2の割合情報が、前記第1の割合情報の(1-a)倍以上前記第1の割合情報の(1+a)倍以下の範囲内であり、
aは、予め設定された設定値である、請求項36に記載のプログラム。 - 前記第1の色と前記第2の色とは、補色の関係にある、請求項27乃至請求項37のいずれか一項に記載のプログラム。
- 前記第3の色は、黒色である、請求項27乃至請求項37のいずれか一項に記載のプログラム。
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Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61217887A (ja) * | 1985-03-22 | 1986-09-27 | Nec Ic Microcomput Syst Ltd | 高情報密度バ−コ−ド方式 |
JPS63254586A (ja) * | 1987-04-10 | 1988-10-21 | Toru Sugita | 情報記録方法及びそれを用いた記録媒体 |
JPH05174204A (ja) * | 1991-12-24 | 1993-07-13 | Olympus Optical Co Ltd | カラーバーコード及びバーコード読取装置 |
JPH11221990A (ja) | 1998-02-05 | 1999-08-17 | Toppan Forms Co Ltd | 二次元バーコード付きシート |
JP2005165565A (ja) * | 2003-12-01 | 2005-06-23 | Kenpakku:Kk | カラーコードシンボル及びカラーコードシンボル生成方法並びに、カラーコードシンボルを生成する記憶媒体。 |
JP2005250865A (ja) * | 2004-03-04 | 2005-09-15 | Fujinon Corp | カラーコード、カラーコードの読取り装置および資料提示装置 |
JP2008047081A (ja) * | 2006-08-16 | 2008-02-28 | Hiroshi Sano | 三次元バー・コード |
JP2009123179A (ja) * | 2007-11-14 | 2009-06-04 | Univ Of Tsukuba | バーコード並びにその生成方法及び読取装置 |
JP2010226580A (ja) * | 2009-03-25 | 2010-10-07 | Denso Wave Inc | 色補正方法及び撮像システム |
JP2012226710A (ja) * | 2011-04-22 | 2012-11-15 | Riso Kagaku Corp | 情報コード、情報コード生成装置、情報コード生成プログラム、情報コード読取装置 |
JP2015165342A (ja) | 2014-02-28 | 2015-09-17 | 株式会社東芝 | 発券機、チケットの製造方法、及び二次元コード印刷装置 |
JP2018147379A (ja) * | 2017-03-08 | 2018-09-20 | 共同印刷株式会社 | 真贋判定方法、装置、及びプログラム |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005338669A (ja) | 2004-05-31 | 2005-12-08 | Dainippon Printing Co Ltd | 真贋判定体及び真贋判定物品とその真贋判定方法 |
JP6247111B2 (ja) | 2014-02-17 | 2017-12-13 | 株式会社日立システムズ | カラーコードの真贋判定装置、カラーコードの真贋判定システム、カラーコードの真贋判定プログラムおよびカラーコードの真贋判定方法 |
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Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61217887A (ja) * | 1985-03-22 | 1986-09-27 | Nec Ic Microcomput Syst Ltd | 高情報密度バ−コ−ド方式 |
JPS63254586A (ja) * | 1987-04-10 | 1988-10-21 | Toru Sugita | 情報記録方法及びそれを用いた記録媒体 |
JPH05174204A (ja) * | 1991-12-24 | 1993-07-13 | Olympus Optical Co Ltd | カラーバーコード及びバーコード読取装置 |
JPH11221990A (ja) | 1998-02-05 | 1999-08-17 | Toppan Forms Co Ltd | 二次元バーコード付きシート |
JP2005165565A (ja) * | 2003-12-01 | 2005-06-23 | Kenpakku:Kk | カラーコードシンボル及びカラーコードシンボル生成方法並びに、カラーコードシンボルを生成する記憶媒体。 |
JP2005250865A (ja) * | 2004-03-04 | 2005-09-15 | Fujinon Corp | カラーコード、カラーコードの読取り装置および資料提示装置 |
JP2008047081A (ja) * | 2006-08-16 | 2008-02-28 | Hiroshi Sano | 三次元バー・コード |
JP2009123179A (ja) * | 2007-11-14 | 2009-06-04 | Univ Of Tsukuba | バーコード並びにその生成方法及び読取装置 |
JP2010226580A (ja) * | 2009-03-25 | 2010-10-07 | Denso Wave Inc | 色補正方法及び撮像システム |
JP2012226710A (ja) * | 2011-04-22 | 2012-11-15 | Riso Kagaku Corp | 情報コード、情報コード生成装置、情報コード生成プログラム、情報コード読取装置 |
JP2015165342A (ja) | 2014-02-28 | 2015-09-17 | 株式会社東芝 | 発券機、チケットの製造方法、及び二次元コード印刷装置 |
JP2018147379A (ja) * | 2017-03-08 | 2018-09-20 | 共同印刷株式会社 | 真贋判定方法、装置、及びプログラム |
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