JP6413783B2 - Printing instruction apparatus, printing system, and program - Google Patents

Description

  The present invention relates to a print instruction apparatus, a printing system, and a program.

  Patent Document 1 discloses a print job generation unit that generates a print job from image data, a printer driver that generates halftone processing of the print job to generate drawing data, a storage unit that temporarily stores drawing data, A drawing apparatus including a printer unit that performs drawing based on drawing data input from the unit is described.

JP 2014-78188 A

Here, printing is performed based on image data including a photographic image expressed in multiple gradations and a code image including code information (for example, a QR code (registered trademark of DENSO WAVE INCORPORATED) or a barcode). Consider the case of doing. At this time, for example, when halftone processing is performed on both the photographic image and the code image, there is a concern that the reading accuracy of the printed code image may be lowered. On the other hand, for example, when the halftone process is not performed on both the photographic image and the code image, there is a concern that the quality of the printed photographic image is deteriorated.
An object of the present invention is to suppress deterioration in quality of a photographic image and reading accuracy of a code image when printing based on image data including a photographic image and a code image is performed.

The invention described in claim 1 stores acquisition means for acquiring image data including a photographic image and a code image, and data obtained by binarizing the photographic image and the code image of the image data acquired by the acquisition means. Storage means, detection means for detecting the code image included in the binarized data stored in the storage means, and processing for performing halftone processing on the photographic image of the image data acquired by the acquisition means And a printing instruction apparatus that outputs to the printing apparatus the photographic image that has been halftone processed by the processing means and the code image detected by the detection means.
According to a second aspect of the present invention, the acquisition unit acquires the image data in which both the photographic image and the code image are set in an image object, and the detection unit is set in the image object in the image data. The print instruction apparatus according to claim 1, wherein the code image is detected from the acquired data.
The invention according to claim 3 further includes multi-value conversion means for converting the code image detected by the detection means into multi-values, and the output means includes the photographic image halftoned by the processing means and the photographic image a print instruction apparatus according to claim 1 or 2, wherein the to output the code image, which is multi-valued by the multi-level means to the printing apparatus.
According to a fourth aspect of the present invention, in the printing instruction apparatus according to the first or second aspect, the photographic image and the code image output from the output unit are combined in the printing apparatus.
According to a fifth aspect of the present invention, in the print instruction apparatus according to the first or second aspect, the output unit synthesizes the photographic image and the code image and outputs the combined image to the printing apparatus.
A sixth aspect of the present invention is the print instruction apparatus according to the fifth aspect, wherein the output means converts the photographic image and the code image into a control code after being synthesized.
The invention described in claim 7 stores acquisition means for acquiring image data including a photographic image and a code image, and data obtained by binarizing the photographic image and the code image of the image data acquired by the acquisition means. Storage means, detection means for detecting the code image included in the binarized data stored in the storage means, and processing for performing halftone processing on the photographic image of the image data acquired by the acquisition means A print instructing device comprising: an output unit configured to output, as print data, the photographic image halftone processed by the processing unit and the code image detected by the detecting unit to the printing apparatus; A printing system including a printing apparatus that prints an image on a recording material using the received print data.
The invention according to claim 8 is a function of acquiring image data including a photographic image and a code image in a computer, and a function of storing data obtained by binarizing the photographic image and the code image of the acquired image data. A function of detecting the code image included in the stored binarized data, a function of performing halftone processing on the photographic image of the acquired image data, and the photographic image subjected to halftone processing and detection And a function for causing the printing apparatus to output the code image.

According to the first aspect of the present invention, when printing based on image data including a photographic image and a code image is performed, it is possible to suppress a decrease in the quality of the photographic image and a decrease in the reading accuracy of the code image.
According to the second aspect of the present invention, for example, when printing based on image data including an object other than an image object is performed, the processing applied to the image data can be simplified.
According to the third aspect of the present invention, mixing of binarized image data and multi-valued image data can be suppressed.
According to the fourth aspect of the invention, the processing in the print instruction apparatus can be simplified.
According to the fifth aspect of the present invention, the processing in the printing apparatus can be simplified.
According to the sixth aspect of the present invention, the conversion to the control code can be easily performed.
According to the seventh aspect of the present invention, when printing based on image data including a photographic image and a code image is performed, it is possible to suppress a decrease in the quality of the photographic image and a decrease in the reading accuracy of the code image.
According to the eighth aspect of the present invention, when printing based on image data including a photographic image and a code image is performed, it is possible to suppress a decrease in the quality of the photographic image and a decrease in the reading accuracy of the code image.

1 is a block diagram illustrating a configuration example of a printing system. It is a block diagram which shows the hardware structural example of a computer apparatus. 4 is a flowchart illustrating a print data creation processing procedure according to the first embodiment. It is a figure which shows an example of the document (object data) used as printing object. (A), (b) is a figure for demonstrating the relationship between a photograph image and a halftone process. (A), (b) is a figure for demonstrating the relationship between a code image and a halftone process. 10 is a flowchart illustrating a print data creation processing procedure according to the second embodiment.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
<Embodiment 1>
FIG. 1 is a block diagram illustrating a configuration example of a printing system to which the exemplary embodiment is applied.
The printing system includes a host device 10 and a printing device 100 connected to the host device 10 via a network or the like. Here, the host device 10 creates print data based on an instruction received from the user. The printing apparatus 100 prints an image on a recording material such as paper based on print data sent from the host apparatus 10.

  The host device 10 includes a computer device 20, an input device 30 and a display device 40 connected to the computer device 20. Among these, the computer device 20 executes various processes for creating print data. Further, the input device 30 receives input of various instructions by the user and sends it to the computer device 20. Further, the display device 40 displays an image to be presented to the user sent from the computer device 20.

  A computer apparatus 20 as an example of a print instruction apparatus includes an application 21, a printer driver 22, a spooler 23, and a language monitor 24. Among these, the application 21 is software for creating a document and the like. The printer driver 22 generates print data that can be interpreted by the printing apparatus 100 based on the document created by the application 21. Here, the printer driver 22 determines an object constituting the document sent from the application 21 and generates PDL (Page Description Language) as print data to be sent to the printing apparatus 100. Examples of objects include graphic objects including graphic images, character objects including character images, and image objects including photographic images and code images. Furthermore, the spooler 23 temporarily holds print data to be output to the printing apparatus 100 via GDI (Graphics Device Interface) in response to a print request from the printer driver 22. Furthermore, the language monitor 24 exchanges data and the like with the printing apparatus 100.

The printer driver 22 includes a UI (User Interface) processing unit 221, an image determination unit 222, a halftone processing unit 223, an image conversion unit 224, and a temporary buffer 225.
The UI processing unit 221 sets “code image optimization mode”. Here, the code image optimization mode is a mode set to improve the reading accuracy of the code image included in the document created by the application 21. The code image is an image including code information, and includes a one-dimensional code such as a barcode and a two-dimensional code such as a QR code. The code image optimization mode is set in accordance with a user instruction received via the input device 30. In addition, the image determination unit 222 determines whether or not various objects constituting the document sent from the application 21 are image objects. Further, the halftone processing unit 223 performs halftone processing on the input data. Here, as the halftone processing executed by the halftone processing unit 223, any known method such as various processing methods such as a density pattern method, a dither method, or an error diffusion method may be used. Furthermore, the image conversion unit 224 binarizes a document composed of a multi-value image created by the application 21. Further, the image conversion unit 224 multi-values the binarized image as necessary. Here, the binarized image means an image in which each pixel is expressed by 1 bit (0 or 1). On the other hand, a multi-valued image means an image in which each pixel is expressed by 2 bits or more, and is expressed by 8 bits here, for example. The temporary buffer 225 temporarily stores the binarized image data created by the image conversion unit 224 and the like.

  Here, in the present embodiment, the UI processing unit 221 has a function as an example of an acquisition unit. The image determination unit 222 functions as an example of a detection unit, the halftone processing unit 223 functions as an example of a processing unit and a multi-value conversion unit, and the temporary buffer 225 functions as an example of a storage unit. Further, the spooler 23 and the language monitor 24 have a function as an example of output means.

  On the other hand, the printing apparatus 100 may form an image using toner or may form an image using ink. The printing apparatus 100 may form a single color (monochrome) image, or may form a plurality of colors (color).

FIG. 2 is a block diagram illustrating a hardware configuration example of the computer apparatus 20.
The computer device 20 is realized by, for example, a personal computer. The computer device 20 includes a CPU (Central Processing Unit) 201 that is a computing means, a main memory 202 and an HDD (Hard Disk Drive) 203 that are storage means. Here, the CPU 201 executes various programs such as an OS (Operating System) and the application 21. The main memory 202 is a storage area for storing various programs and data used for execution thereof. The HDD 203 is a storage area for storing input data for various programs, output data from the various programs, and the like. Further, the computer device 20 includes a communication interface (hereinafter referred to as “communication I / F”) 204 for communicating with the input device 30, the display device 40, and the printing device 100.

  Note that the functions of the application 21, the printer driver 22, the spooler 23, and the language monitor 24 that constitute the computer device 20 shown in FIG. 1 are realized by cooperation of software and hardware resources. That is, the CPU 201 provided in the computer device 20 reads a program for realizing the functions of the respective units from, for example, the storage device of the HDD 203 into the main memory 202 to realize these functions. Note that the program can be provided to the computer device 20 via, for example, a network (not shown). However, the present invention is not limited to this. For example, the program can be provided by being stored in a recording medium such as a CD-ROM.

FIG. 3 is a flowchart illustrating a print data creation processing procedure according to the first embodiment.
First, a user creates a document using the application 21 and issues a print instruction for the document. Accordingly, the printer driver 22 receives object data corresponding to the document from the application 21 (step 10). Here, the object data is an example of image data.

  Then, the image determination unit 222 analyzes the received object data and determines whether the object is in an image format (whether it is an image object) (step 20). If a negative determination (NO) is made in step 20, the process proceeds to step 150 described later.

  On the other hand, if an affirmative determination (YES) is made in step 20, the UI processing unit 221 determines whether or not the code image optimization mode is set by the user (step 30). If a negative determination (NO) is made in step 30, the halftone processing unit 223 performs halftone processing on this object (original image object) (step 140), and proceeds to step 150 described later.

  If an affirmative determination (YES) is made in step 30, the image conversion unit 224 performs binarization conversion for each page on the document including this object (image object) and obtains the obtained image data (2 The digitized data (referred to as binarized data) is stored in the temporary buffer 225 (step 40). Subsequently, the image determination unit 222 performs code image determination processing on the binarized data obtained in step 40 (step 50), and determines whether there is a code image (step 60). If a negative determination (NO) is made in step 60, the process proceeds to step 100 described later.

  On the other hand, when an affirmative determination (YES) is made in step 60, the image conversion unit 224 extracts a portion determined as a code image (referred to as a code image unit) from the binarized data stored in the temporary buffer 225. (Step 70). Next, the printer driver 22 converts the objectized data (code image portion) into a control code (PDL) that can be interpreted by the printing apparatus 100 (step 80). Thereafter, the control code (PDL) obtained in step 80 is output to the printing apparatus 100 via the spooler 23 and the language monitor 24 (step 90).

  On the other hand, when an affirmative determination (YES) is made in step 30 and a negative determination (NO) is made in step 60, the halftone processing unit 223 performs this object (original image object). Then, halftone processing is performed (step 100). Subsequently, the printer driver 22 converts the data subjected to the halftone process (other than the code image portion) into a control code (PDL) that can be interpreted by the printing apparatus 100 (step 110). Thereafter, the control code (PDL) obtained in step 110 is output to the printing apparatus 100 via the spooler 23 and the language monitor 24 (step 120).

  After that, in the printing apparatus 100, the control code (PDL) of the binarized code image supplied from the computer apparatus 20 in step 90 and the halftoned code supplied from the computer apparatus 20 in step 120 The control code (PDL) of the image corresponding to the image object other than the image is synthesized (step 130).

  If a negative determination (NO) is made in step 20 and if a halftone process is performed in step 140 after making a negative determination (NO) in step 30, the printer driver 22 uses this data. Is converted into a control code (PDL) interpretable by the printing apparatus 100 (step 150). Thereafter, the control code (PDL) obtained in step 150 is output to the printing apparatus 100 via the spooler 23 and the language monitor 24 (step 160).

  Upon receiving the control code (PDL), the printing apparatus 100 interprets the control code (PDL) and prints an image on the recording material.

Here, the print data creation processing procedure of the present embodiment will be described with a specific example.
FIG. 4 is a diagram illustrating an example of a document (object data) 60 to be printed. Here, the case where an image is printed on A4 size vertically long paper is taken as an example.

  A document 60 shown in FIG. 4 includes a photographic image 61, a character image 62, a graphic image 63, and a code image 64. Here, the photographic image 61 is an image object composed of multi-value (for example, 256 gradations) gradation images. The character image 62 is a character object, and the graphic image 63 is a graphic object. Further, the code image 64 is an image object composed of multi-value (for example, 256 gradations) gradation images. In this example, it is assumed that the code image 64 is composed of a QR code.

  FIG. 5 is a diagram for explaining the relationship between the photographic image 61 and the halftone process. Here, FIG. 5A shows a photographic image 61 that has been subjected to halftone processing, and FIG. 5B shows a photographic image 61 that has not been subjected to halftone processing.

  Further, FIG. 6 is a diagram for explaining the relationship between the code image 64 and the halftone process. Here, FIG. 6A shows a code image 64 that has undergone halftone processing, and FIG. 6B shows a code image 64 that has not undergone halftone processing. However, FIGS. 6A and 6B are enlarged views of the main part of the code image 64.

  When the code image optimization mode is set (YES in step 30), the image object is subjected to binarization conversion for each page, and the obtained binarized data is stored in the temporary buffer 225 ( Step 40). At this time, in the binarized data, the photographic image 61 is as shown in FIG. 5B, and the code image 64 is as shown in FIG. 6B. Thereafter, the code image 64 (see FIG. 6B) is extracted from the binarized data and converted into an object (step 70), further converted into a control code (PDL) (step 80), and output to the printing apparatus 100. (Step 90).

  If the code image optimization mode is set (YES in step 30), halftone processing is performed on image objects other than the code image 64, that is, the photographic image 61 (step 100). At this time, the obtained photographic image 61 is as shown in FIG. Thereafter, the photographic image 61 (see FIG. 5A) is converted into a control code (PDL) (step 110) and output to the printing apparatus 100 (step 120).

  In this embodiment, the code image 64 (see FIG. 6B) and the photographic image 61 (see FIG. 5A) obtained in this way are combined in the printing apparatus 100 (step 130). ), Printing based on the composite data is performed. As a result, in the image printed on the paper, the photographic image 61 is in the state shown in FIG. 5A, and the code image 64 is in the state shown in FIG.

  Here, consider a case in which halftone processing is performed on both the photographic image 61 and the code image 64 constituting the image object in the document 60. In this case, a photographic image 61 obtained by printing is as shown in FIG. 5A, and a code image 64 obtained by printing is as shown in FIG. Then, while the quality of the photographic image 61 is good, the reading accuracy of the code image 64 is lowered because the image is blurred.

  Next, let us consider a case where the halftone process is not performed on both the photographic image 61 and the code image 64 constituting the image object in the document 60. In this case, the photographic image 61 obtained by printing is as shown in FIG. 5B, and the code image 64 obtained by printing is as shown in FIG. 5B. Then, while the reading accuracy of the code image 64 is improved, the quality of the photographic image 61 is deteriorated as much as the image is expressed in binary.

  On the other hand, in the present embodiment, when the code image optimization mode is set, with respect to the photographic image 61 and the code image 64 constituting the image object in the document 60, the photographic image 61 is subjected to halftone processing. At the same time, the code image 64 is not subjected to halftone processing. In this case, a photographic image 61 obtained by printing is shown in FIG. 5A, and a code image 64 obtained by printing is shown in FIG. 6B. By performing such setting, the quality of the photographic image 61 is improved, and the reading accuracy of the code image 64 is also improved.

  Here, since the code image 64 composed of a QR code, a bar code, or the like is composed of a combination of light and dark binary values, it is easier to accurately discriminate the binarized image. However, in general, an image constituting an image object is often expressed in multiple values. Therefore, in the present embodiment, a temporary buffer 225 for searching the code image 64 (QR code) is prepared, and binary data (image image) obtained by binarizing and converting object data for each page is temporarily stored. The data is stored in the buffer 225. Then, the code image 64 is searched for the binarized data stored in the temporary buffer 225. Thereby, compared with the case where it searches from the multivalued object data, the precision which discriminate | determines the code image 64 can be improved.

  In the present embodiment, in order to ensure (improve) the reading quality of the code image 64 formed on the paper, among the images constituting the image object, the photographic image 61 is subjected to halftone processing, The code image 64 is not subjected to halftone processing. In the present embodiment, the binarized data created for determining the code image 64 is used for the code image 64 output to the printing apparatus 100. As a result, the binarization process for retrieving the code image 64 from the object data and the binarization process for converting the multi-value code image 64 into binary need not be performed separately.

  Further, in the present embodiment, the binarized code image 64 data and the halftone processed image data are synthesized on the printing apparatus 100 side. As a result, the load on the computer device 20 can be reduced.

<Embodiment 2>
The present embodiment is almost the same as the first embodiment, but the print data creation procedure is different from the first embodiment. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

FIG. 7 is a flowchart illustrating a print data creation processing procedure according to the second embodiment.
Also in this case, first, the user creates a document by the application 21 and issues a print instruction for the document. Accordingly, the printer driver 22 receives object data corresponding to the document from the application 21 (step 210).

  Then, the image determination unit 222 analyzes the received object data and determines whether the object is in an image format (whether it is an image object) (step 220). If a negative determination (NO) is made in step 220, the process proceeds to step 320 described later.

  On the other hand, when an affirmative determination (YES) is made in step 220, the UI processing unit 221 determines whether or not the code image optimization mode is set by the user (step 230). If a negative determination (NO) is made in step 230, the halftone processing unit 223 performs halftone processing on this object (original image object) (step 310), and proceeds to step 320 described later.

  If the determination in step 230 is affirmative (YES), the image conversion unit 224 performs binarization conversion for each page regarding the document including the object (image object) and obtains the binarized data obtained. Is stored in the temporary buffer 225 (step 240). Subsequently, the image determination unit 222 performs code image determination processing on the binarized data obtained in step 240 (step 250), and determines whether there is a code image (step 260). When a negative determination (NO) is made in step 260, the process proceeds to step 290 described later.

  On the other hand, when an affirmative determination (YES) is made in step 260, the image conversion unit 224 extracts the code image portion from the binarized data stored in the temporary buffer 225 and converts it into an object (step 270). Next, the image conversion unit 224 performs multi-value conversion processing for converting object data (code image portion) from binary to multi-value (step 280), and proceeds to step 300 described later.

  On the other hand, when an affirmative determination (YES) is made in step 230 and a negative determination (NO) is made in step 260, the halftone processing unit 223 performs this object (original image object). Then, halftone processing is performed (step 290), and the process proceeds to the next step 300.

  Then, the printer driver 22 synthesizes the multi-value processed code image data obtained in step 280 and the halftone processed image data obtained in step 290 (step 300).

  Subsequently, in the printer driver 22, the composite data obtained in step 300, the halftoned data obtained in step 310, or the data for which a negative determination has been made in step 220 (objects other than image objects). (Including data) is converted into a control code (PDL) that can be interpreted by the printing apparatus 100 (step 320). Thereafter, the control code (PDL) obtained in step 320 is output to the printing apparatus 100 via the spooler 23 and the language monitor 24 (step 330).

  Upon receiving the control code (PDL), the printing apparatus 100 interprets the control code (PDL) and prints an image on the recording material.

  Here, with reference to FIGS. 4 to 6 as well, the print data creation procedure of the present embodiment will be described with specific examples.

  When the code image optimization mode is set (YES in step 230), the image object is subjected to binarization conversion for each page, and the obtained binarized data is stored in the temporary buffer 225 ( Step 240). At this time, in the binarized data, the photographic image 61 is as shown in FIG. 5B, and the code image 64 is as shown in FIG. 6B. Thereafter, the code image 64 (see FIG. 6B) is extracted from the binarized data to be converted into an object (step 270) and further multi-valued (step 280). At this time, when the multi-value is expressed by 8 bits, for example, “0” in the binary data is “0” in the multi-value data, “1” in the binary data is “255” in the multi-value data, Each is converted.

  If the code image optimization order is set (YES in step 230), halftone processing is performed on image objects other than the code image 64, that is, the photographic image 61 (step 290). At this time, the obtained photographic image 61 is as shown in FIG.

  In the present embodiment, the multi-value processed code image (see FIG. 6B) and the halftone processed image data (see FIG. 5A) are then synthesized (step 300). Then, the synthesized data is converted into a control code (PDL) (step 320) and output to the printing apparatus 100 (step 330).

  In this embodiment, the printing apparatus 100 performs printing based on the sent composite data. As a result, in the image formed on the paper, the photographic image 61 is in the state shown in FIG. 5A, and the code image 64 is in the state shown in FIG.

  Also in the present embodiment, as in the first embodiment, when the code image optimization mode is set, the photographic image 61 and the code image 64 constituting the image object in the document 60 are related to the photographic image 61 in half. While tone processing is performed, the code image 64 is not subjected to halftone processing. In this case, a photographic image 61 obtained by printing is shown in FIG. 5A, and a code image 64 obtained by printing is shown in FIG. 6B. By performing such setting, the quality of the photographic image 61 is improved, and the reading accuracy of the code image 64 is also improved.

  In the present embodiment, as in the first embodiment, a temporary buffer 225 for retrieving a code image 64 (QR code) is prepared, and binarization is performed by binarizing and converting object data for each page. Data (image image) is stored in the temporary buffer 225. Then, the code image 64 is searched for the binarized data stored in the temporary buffer 225. Thereby, compared with the case where it searches from the multivalued object data, the precision which discriminate | determines the code image 64 can be improved.

  In the present embodiment, when the binarized image data is multi-valued, the binarized code image 64 is generated using the fact that the data size increases but the image content itself does not change. The value is reconverted to a value, is combined with the photographic image 61 that has been subjected to the halftone process, and is output to the printing apparatus 100. As a result, it is possible to suppress mixing of multi-valued images and binary images in the same data.

  In the first and second embodiments, the code image 64 in the image object is determined (searched) on the assumption that the code image optimization mode is set by the user. It is not limited. That is, the code image 64 in the image object may always be discriminated.

DESCRIPTION OF SYMBOLS 10 ... Host device, 20 ... Computer device, 21 ... Application, 22 ... Printer driver, 23 ... Spooler, 24 ... Language monitor, 30 ... Input device, 40 ... Display device, 60 ... Document, 61 ... Photo image, 62 ... Text Image 63 63 Graphic image 64 Code image (QR code) 100 Printing device 221 UI processing unit 222 Image determination unit 223 Halftone processing unit 224 Image conversion unit 225 Temporary buffer

Claims (8)

Acquisition means for acquiring image data including a photographic image and a code image;
Storage means for storing data obtained by binarizing the photographic image and the code image of the image data acquired by the acquisition means;
Detecting means for detecting the code image included in the binarized data stored in the storage means;
Processing means for performing halftone processing on the photographic image of the image data acquired by the acquisition means;
A printing instruction apparatus comprising: the photographic image that has been halftone processed by the processing means; and an output means that causes the printing apparatus to output the code image detected by the detection means. The acquisition means acquires the image data in which both the photographic image and the code image are set in an image object,
The print instruction apparatus according to claim 1, wherein the detection unit detects the code image from data set in the image object in the image data. Further comprising multi-value conversion means for multi-value the code image detected by the detection means,
3. The output device causes the printing apparatus to output the photographic image that has been halftoned by the processing unit and the code image that has been multi-valued by the multi-value converting unit. Printing instruction device.   3. The print instruction apparatus according to claim 1, wherein the photographic image and the code image output from the output unit are combined in the printing apparatus.   The print instruction apparatus according to claim 1, wherein the output unit synthesizes the photographic image and the code image and outputs the combined image to the printing apparatus.   6. The print instruction apparatus according to claim 5, wherein the output unit converts the photographic image and the code image into a control code after synthesizing the photographic image and the code image. Acquisition means for acquiring image data including a photographic image and a code image, storage means for storing the photographic image of the image data acquired by the acquisition means and data obtained by binarizing the code image, and the storage means Detecting means for detecting the code image included in the binarized data stored in the memory, processing means for performing a halftone process on the photographic image of the image data acquired by the acquiring means, and half processing by the processing means A print instruction apparatus having output means for outputting the tone-processed photographic image and the code image detected by the detection means to the printing apparatus as print data;
A printing system comprising: a printing device that prints an image on a recording material using the print data received from the print instruction device. On the computer,
A function of acquiring image data including a photographic image and a code image;
A function of storing the binarized data of the photograph image and the code image of the acquired image data;
A function of detecting the code image included in the stored binary data;
A function of performing a halftone process on the photographic image of the acquired image data;
A program for realizing a function of causing the printing apparatus to output the photographic image subjected to halftone processing and the detected code image.