JP2019176443A - Image reading device - Google Patents

Abstract

To utilize a function of dividing a page without restricting a paper for specifying a dividing position to a plain original.SOLUTION: The image reading device comprises: an original reading unit 5 for reading an image of an original; a file generating unit 106 for generating a file from the image of the original read by the original reading unit 5; and a detection unit 104 which compares an image of a plurality of pages of the original successively read by the original reading unit 5 with an image of an original read by the original reading unit 5 as a partition reference original and detects an image of an original similar to the partition reference original as a partition image. The file generation unit 106 divides each image of a plurality of pages of an original at the position of the page of the partition image detected by the detection unit 104 into image groups before and after the page, and generates a file for each of the image groups without including an image of the page of the partition image.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an image reading apparatus, and more particularly to a technique for generating a plurality of files by dividing images of a plurality of documents that are successively read.

  In an image reading apparatus (for example, a multi-function peripheral), an image obtained by continuously reading a plurality of pages (a plurality of sheets) of an original is divided to generate a plurality of files. Some have a function of outputting to a personal computer or server and a function of saving in the apparatus. For example, the following Patent Documents 1 and 2 describe a technique for discriminating a plain original (for example, a blank original) sandwiched between originals as a partitioned image and dividing the page at the position of the plain original that is the partitioned image. Has been.

Japanese Patent Laying-Open No. 2015-026994 Japanese Patent Laying-Open No. 2005-141425

  In some companies, usable paper may be limited. For example, there may be a case where only the paper on which the header and footer are printed (for example, the paper on which the company logo is printed in the upper and lower areas) is allowed to be used. In such a case, a plain original (for example, a blank original) cannot be used as a partition image, and the page division function cannot be utilized.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to utilize a page dividing function without limiting a sheet for designating a dividing position to a plain original.

  An image reading apparatus according to one aspect of the present invention includes a document reading unit that reads an image of a document including a plurality of pages, a file generation unit that generates a file from the document image of each page read by the document reading unit, The image of each document read continuously by the document reading unit is compared with the image of the document read by the document reading unit as a partition reference document, and an image similar to the reference document for partition is compared with the partition image. The file generation unit detects each image of the document of a plurality of pages read by the document reading unit at the position of the page of the partition image detected by the detection unit. A file is generated for each of the image groups without including the image of the page of the partition image.

  According to the present invention, a document read by the document reading unit is used as a partition reference document, and an image similar to the partition reference document is detected as a partition image. Therefore, the user can freely specify a partition image used for dividing a multi-page document, so that the page dividing function is not limited to a plain document for specifying a division position. Can be used.

1 is a functional block diagram schematically illustrating a main internal configuration of an image forming apparatus including an image reading apparatus according to a first embodiment of the present invention. 1 is a perspective view illustrating an appearance of an image forming apparatus including an image reading apparatus according to a first embodiment. It is explanatory drawing for demonstrating the concept which detects a partition image from a some original document. It is explanatory drawing for demonstrating the concept which detects a partition image from a some original document. It is the figure which showed an example of the operation screen displayed on a display part. It is the figure which showed an example of the operation screen displayed on a display part. It is the figure which showed an example of the operation screen displayed on a display part. 5 is a flowchart illustrating an example of processing performed by a control unit of the image forming apparatus including the image reading apparatus according to the first embodiment. 5 is a flowchart illustrating an example of processing performed by a control unit of the image forming apparatus including the image reading apparatus according to the first embodiment. It is explanatory drawing for demonstrating the concept of a page division. FIG. 6 is a functional block diagram schematically illustrating a main internal configuration of an image forming apparatus including an image reading apparatus according to a second embodiment.

  Hereinafter, an image reading apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram schematically showing the main internal configuration of an image forming apparatus including the image reading apparatus according to the first embodiment of the present invention, and FIG. 2 is related to the first embodiment. 1 is a perspective view illustrating an appearance of an image forming apparatus including an image reading apparatus.

  The image forming apparatus 1 is a multifunction machine having a plurality of functions such as a copy function, a printer function, a scanner function, and a facsimile function. The image forming apparatus 1 includes a control unit 10, a document feeding unit 6, a document reading unit 5, an image forming unit 12, a fixing unit 13, a sheet feeding unit 14, an operation unit 47, an HDD (Hard Disk Drive) 92, and a network interface. Part 91 is provided.

  A case where a document reading operation is performed in the image forming apparatus 1 will be described. The document reading unit 5 optically reads the document conveyed by the document feeding unit 6 or the image of the document placed on the contact glass 161. The original image read by the original reading unit 5 is stored in an unillustrated image memory or the like.

  The document feeding unit 6 is configured to be openable and closable by a hinge or the like on the upper surface of the document reading unit 5. The document feeding unit 6 includes a document mat 61 and reads a document placed on the contact glass 161. Function as a document cover.

  A case where an image forming operation is performed in the image forming apparatus 1 will be described. The image forming unit 12 performs recording as a recording medium fed from the paper feeding unit 14 based on an image obtained by reading by the original reading operation or an image received from a personal computer or the like as the external device 20 connected to the network. A toner image is formed on paper.

  The fixing unit 13 fixes the toner image on the recording paper by thermocompression bonding, and the recording paper subjected to the fixing process is discharged to the discharge tray 151. The paper feed unit 14 includes a paper feed cassette.

  The operation unit 47 receives instructions such as an image forming operation execution instruction from the operator for various operations and processes that can be executed by the image forming apparatus 1. The operation unit 47 includes a display unit 473 that displays operation guidance to the operator. The display unit 473 is a touch panel, and the operator can operate the image forming apparatus 1 by touching buttons and keys displayed on the screen.

  The network interface unit 91 transmits / receives various data to / from the external device 20 such as a personal computer or a server in the local area or on the Internet.

  The control unit 10 includes a processor, a RAM (Random Access Memory), a ROM (Read Only Memory), and a dedicated hardware circuit. The processor is, for example, a central processing unit (CPU), an application specific integrated circuit (ASIC), or a micro processing unit (MPU). The control unit 10 includes a control unit 100, an operation reception unit 101, a detection unit 104, a second detection unit 105, a file generation unit 106, and a notification unit 107.

  The control unit 10 functions as the control unit 100, the operation receiving unit 101, the detection unit 104, the second detection unit 105, the file generation unit 106, and the notification unit 107 by an operation according to a control program stored in the HDD 92. . However, the control unit 100 and the like can also be configured by hardware circuits independently of the operation according to the control program by the control unit 10. The same applies to each embodiment unless otherwise specified.

  The control unit 100 governs overall operation control of the image forming apparatus 1. The control unit 100 is connected to the document feeding unit 6, the document reading unit 5, the image forming unit 12, the fixing unit 13, the sheet feeding unit 14, the operation unit 47, and the network interface unit 91. Do.

  The detection unit 104 compares the images of a plurality of documents read continuously by the document reading unit 5 with the images of the document read by the document reading unit 5 as a partition reference document, and is similar to the partition reference document. The original is detected as a partition image.

  The reference document for partitioning is either (i) the first page of a plurality of pages read continuously by the document reading unit 5 or (ii) the document reading unit 5 in advance before the plurality of documents. This is a document to be read. In the case of (ii), the read image of the document is stored in advance in the HDD 92 or the like as a partition image before the document is read by the document reading unit 5.

  In the first embodiment, an example will be described in which the partition reference document is the first page of a plurality of pages of documents that are continuously read by the document reading unit 5. For example, as shown in FIG. 3, when the first to eighth pages of a plurality of documents M1 are sequentially read by the document reading unit 5, the detection unit 104 reads the first page document as a partition reference document. The image of each document from the second page to the eighth page is compared with the image of the reference document for the partition (original document of the first page), and the image of the document similar to the reference document for the partition is used as the partition image. To detect. Therefore, in the case of the example shown in FIG. 3, the detection unit 104 prints the image of the first page of the document with the company logo “Iroha Corporation” printed in the upper end area and the other areas are blank. The fourth and seventh pages of the document similar to the first page of the document are detected as partition images.

  As a method for determining the similarity, for example, the feature points of the image of the partition reference original (original of the first page) and the image of the comparative original (original of the second page and thereafter) are extracted, and both of the extracted feature points are used. There is a method for determining similarity based on the degree of coincidence between the two. When the degree of coincidence is equal to or greater than a threshold, it is determined that the two are similar. Note that the threshold is preferably set each time according to the number and amount of feature points, not the default value.

  Further, as another method of determining similarity by the detection unit 104, a method of matching the whole document, a method of extracting a keyword using an OCR (Optical Character Reader) function, and performing matching using the extracted keyword However, in these methods, the processing becomes complicated and the load on the control unit 10 may become too large as compared with the case of extracting the feature points described above. Further, the similarity determination in the present embodiment does not require strictness such as matching of character units, and it is only necessary to be able to confirm the presence of a similar logo or the like. A relatively easy determination method is preferable.

  The second detection unit 105 detects a document image similar to a predetermined plain document (for example, a blank document) as a partition image from a plurality of pages of document images continuously read by the document reading unit 5. .

  For example, as shown in FIG. 4, when the first to seventh pages of the plurality of documents M2 are sequentially read by the document reading unit 5, the second detection unit 105 reads from the first page to the seventh page. An image indicating a blank original, which is a plain original, is detected as a partition image from the original images. Accordingly, the second detection unit 105 detects the images of the third and sixth pages, which are blank pages, as a partition image.

  As a method for determining whether or not the second detection unit 105 is a blank original, for example, based on the original image read by the original reading unit 5, the density of each pixel constituting the original image is determined in advance. A method of determining whether or not a document exceeds a predetermined threshold value and determining that the number of images having a density equal to or greater than the threshold value is equal to or less than a predetermined number is a blank document is included.

  The file generation unit 106 generates a file from each document image read by the document reading unit 5. Further, the file generation unit 106 applies each image of a plurality of pages of documents read continuously by the document reading unit 5 at the page position indicating the partition image detected by the detection unit 104 or the second detection unit 105. The image is divided into image groups before and after the page, and division processing is performed to generate a file for each of the image groups without including the image of the page indicating the partition image.

  The operation receiving unit 101 receives an operation input from the user via the operation unit 47. The operation receiving unit 101 includes a division instruction receiving unit 102 and a selection receiving unit 103.

  The division instruction receiving unit 102 receives a division instruction for requesting execution of the division process based on the operation of the operation unit 47 by the user.

  For example, the control unit 100 displays an operation screen P1 as shown in FIG. On the operation screen P1, a selection button B11 marked “Yes” and a selection button B12 marked “No” are formed. When the selection button B11 is pressed by the user via the operation unit 47, the division instruction receiving unit 102 receives the division instruction via the touch panel function, and when the selection button B12 is pressed by the user, the division instruction reception is received. The unit 102 accepts an instruction not to divide a multi-page document image at the position of the partition image.

  The selection receiving unit 103 receives a selection of the type of document used for detecting the partition image.

  For example, the control unit 100 displays an operation screen P2 as shown in FIG. On the operation screen P2, there are formed a selection button B21 labeled “original document for the first page” and a selection button B22 labeled “blank document”. When the selection button B21 is pressed by the user via the operation unit 47, the selection receiving unit 103 uses the touch panel function to select a reference document “first page document” as a document to be used for detection of a partition image. When selection is accepted and the selection button B22 is pressed by the user, the selection accepting unit 103 accepts selection of a document “blank document” that is predetermined as a document to be used for detection of a partition image.

  When the selection accepting unit 103 accepts the selection of “original of the first page” as the original to be used for the detection of the partition image, the file generation unit 106 selects a plurality of images at the position of the partition image detected by the detection unit 104. Each image of the document on the page is divided into image groups before and after the page, and a file is generated for each of the image groups without including the page image indicating the partition image. On the other hand, when the selection receiving unit 103 receives the selection of “blank document” as the document used for the detection of the partition image, the file generation unit 106 determines that the position of the partition image detected by the second detection unit 105 is Each image of the multi-page document is divided into image groups before and after the page, and a file is generated for each image group without including the page image indicating the partition image.

  The notification unit 107 is a notification process for inquiring of the user whether or not to perform the division process when the division image is detected by the detection unit 104 in a state where the division instruction reception unit 102 has not received the division instruction. I do. For example, the notification unit 107 displays an operation screen P3 as shown in FIG. 7 on the display unit 473, thereby prompting the user to input an instruction as to whether or not to perform the division process.

  On the operation screen P3, a selection button B31 labeled “Yes” and a selection button B32 labeled “No” are displayed. When the selection button B31 is pressed by the user via the operation unit 47, the division instruction receiving unit 102 receives an instruction to perform the division processing via the touch panel function, and the selection button B32 is pressed by the user. Then, the division instruction receiving unit 102 receives an instruction not to perform the division process.

  Next, an example of processing performed by the control unit 10 of the image forming apparatus 1 as an embodiment of the image reading apparatus according to the first embodiment will be described based on the flowcharts shown in FIGS. This process is performed when the operation receiving unit 101 receives a user instruction to start reading a document. Here, a case where a document of a plurality of pages is set in the document feeder 6 will be described as an example.

  When the operation receiving unit 101 receives a user instruction for starting document reading, the control unit 100 controls the operations of the document feeding unit 6 and the document reading unit 5 to cause the document feeding unit 6 to transport the document, thereby The image of the document conveyed to the reading unit 5 is read (S1).

  Subsequently, the control unit 100 determines whether or not reading of all the documents set in the document feeding unit 6 is completed (S2), and reading of the documents is completed (for example, a predetermined time or more elapses). However, if it is determined that a new document is not conveyed from the document feeder 6 (YES in S2), the process proceeds to S3, and if it is determined that reading of the document is not completed (NO in S2), The process returns to S1.

  In S <b> 3, the file generation unit 106 determines whether or not the division instruction receiving unit 102 has received the above-described division instruction for dividing the image of a plurality of pages of documents read continuously by the document reading unit 5 at the position of the partition image. Judgment is made (S3).

  When the file generation unit 106 determines that the division instruction receiving unit 102 has received the division instruction (YES in S3), the selection receiving unit 103 uses “the first page document” as a document to be used for detecting the partition image. Then, it is determined which selection of “blank document” is accepted (S4).

  When the file generation unit 106 determines that the selection receiving unit 103 has received the selection of the “first page document” as the document to be used for detecting the partition image (“first page” in S4), the detection unit 104 Then, the image of the first page of the plurality of documents read continuously by the document reading unit 5 is analyzed to extract feature points (S5). Note that here, a case has been described in which the image of the reference document for partitioning (the first page document) is analyzed and feature points are extracted after all the documents have been read. The extraction process may be performed immediately after the original of the first page is read without waiting for the completion of reading of the original.

  Subsequently, the detection unit 104 analyzes the images of the second and subsequent pages, extracts feature points, and detects a document image (that is, a partition image) similar to the image of the first page. (S6).

  The file generation unit 106 determines whether or not the detection unit 104 has detected a partition image (S7). If the detection unit 104 determines that a partition image has been detected (YES in S7), the file generation unit 106 detects the partition image. Each image of the document of a plurality of pages read continuously by the document reading unit 5 at the position of the page of the partition image is divided into image groups before and after the page without including the image of the page of the partition image. Then, a file is generated for each of the image groups (S8). That is, the file is generated by dividing the page.

  For example, as shown in FIG. 10, when the first to eighth pages of a plurality of documents M1 are sequentially read by the document reading unit 5, the detection unit 104 causes the document on the first page to be a reference document for partitioning. In addition, the fourth and seventh page documents similar to the partition reference document (first page document) are detected as the partition images. Then, the file generation unit 106 generates a single file F1 by combining the images of the second and third pages of the document, with the fourth and seventh pages serving as the page positions of the partition images as boundaries. The image of the sixth page of the document is collected to generate one file F2, and the image of the eighth page of the document is generated to generate one file F3.

  The file generated by the file generation unit 106 is sent from the control unit 100 to the external device 20 such as a personal computer designated by the user via the network interface unit 91 in accordance with a user instruction received by the operation reception unit 101. It is transmitted or stored in the HDD 92 or the like in the image forming apparatus 1.

  On the other hand, in S7, when the file generation unit 106 determines that the detection unit 104 has not detected the partition image (NO in S7), the file generation unit 106 does not divide the image of the document of a plurality of pages read by the document reading unit 5. One file is generated (S9). That is, the file generation unit 106 generates a file without performing the division process.

  In S4, when the file generation unit 106 determines that the selection receiving unit 103 has received selection of “blank document” as a document to be used for detection of the partition image (“blank document” in S4), the second detection is performed. The unit 105 detects a blank document from a plurality of documents continuously read by the document reading unit 5 and detects it as a partitioned image (S10).

  Also in this case, the file generation unit 106 determines whether or not the second detection unit 105 has detected a partition image (S7), and determines that the second detection unit 105 has detected a partition image (YES in S7). ) Dividing each image of a plurality of pages of documents read continuously by the document reading unit 5 into image groups before and after the page at the page position of the partition image detected by the second detection unit 105; A file is generated for each image group without including the page image of the partition image (S8).

  On the other hand, when the file generation unit 106 determines that the second detection unit 105 has not detected the partition image (NO in S7), the file generation unit 106 does not divide the images of the plurality of documents read by the document reading unit 5 and divides the files. Is generated (S9).

  In S3, when the file generation unit 106 determines that the division instruction receiving unit 102 has not received the division instruction (NO in S3), the process proceeds to S11 (FIG. 9), and the selection receiving unit 103 It is determined which of the “first page original” and “blank original” selection is accepted as the original used for detecting the partition image (S11).

  When the file generation unit 106 determines that the selection receiving unit 103 has received the selection of the “first page document” as the document used for detection of the partition image (“first page” in S11), the detection unit 104 Then, the image of the first page of the plurality of documents read continuously by the document reading unit 5 is analyzed to extract feature points (S12). Subsequently, the detection unit 104 also analyzes the image of the second and subsequent pages of the document to extract feature points, and detects a document image (ie, a partition image) similar to the image of the first page of the document ( S13).

  Here, when the file generation unit 106 determines that the detection unit 104 has detected a partition image (that is, a partition image has been detected in a state where the above division instruction has not been received) (YES in S14), a notification unit 107 displays the operation screen P3 shown in FIG. 7 on the display unit 473 (S15). As a result, the user is prompted to input an instruction as to whether or not to perform the dividing process.

  The file generation unit 106 determines whether or not the division instruction receiving unit 102 has received the division instruction after the notification unit 107 performs the notification process by the display (S16), and the division instruction receiving unit 102 outputs the division instruction. If it is determined that it has been accepted (YES in S16), based on the position of the partition image detected by the detection unit 104, a plurality of original images read by the original reading unit 5 are divided into a plurality of files. Generate (S17). That is, the file is generated by dividing the page.

  On the other hand, when the file generation unit 106 determines that the division instruction receiving unit 102 has not received the division instruction (NO in S16), the file generation unit 106 does not divide the images of the plurality of originals read by the original reading unit 5 without dividing the files. Is generated (S18). That is, the file generation unit 106 generates a file without performing the division process.

  In S11, the file generation unit 106 determines that the selection receiving unit 103 has received the selection of “blank document” as the document to be used for detecting the partition image (“blank” in S11), or the detection unit. Even if it is determined that the partition image 104 has not been detected (NO in S14), the file is generated without performing the division process (S18). That is, the file generation unit 106 generates a file without dividing the images of a plurality of documents read by the document reading unit 5.

  According to the first embodiment, a document read by the document reading unit 5 is used as a partition reference document, and an image of a document similar to the image of the partition reference document is detected as a partition image. Therefore, a desired image can be used as a partition image used for dividing a plurality of pages of a document. For this reason, the page division function can be utilized without causing a problem such that the paper for designating the division position is limited to a plain original.

  In addition, even when a division instruction for executing the above-described division processing is not received from the user, when an image of a document similar to the partition image is detected, an input of an instruction as to whether or not to perform the division processing is performed. The user is given an opportunity to execute the division process. For this reason, even if the division processing is not instructed before reading the document, even after the document reading is started, the division processing can be performed according to the user's request.

  It is also possible to switch the document used for setting the partition image to a blank document as described above.

  FIG. 11 is a functional block diagram schematically showing the main internal configuration of an image forming apparatus including the image reading apparatus according to the second embodiment. Note that the description of the same configuration as that of the image forming apparatus including the image reading apparatus according to the first embodiment is omitted. The image forming apparatus 1 illustrated in FIG. 11 is different from the image forming apparatus illustrated in FIG. 1 in that the operation receiving unit 101 includes a notification instruction receiving unit 108.

  The notification instruction receiving unit 108 receives a notification instruction as to whether or not to make a notification in S15 (FIG. 9) by the notification unit 107 based on the operation of the operation unit 47 by the user. The notification unit 107 performs the notification process when the notification instruction reception unit 108 receives the notification instruction, but does not perform the notification process when the notification instruction reception unit 108 does not receive the notification instruction.

  For example, when the notification instruction receiving unit 108 has not received a notification instruction, and the file generation unit 106 determines in S3 (FIG. 8) that the division instruction receiving unit 102 has not received a division instruction (NO in S3). The process does not proceed to S11 (FIG. 9), but proceeds to S9 (FIG. 8). As a result, if the user has not instructed the division processing before reading the document and does not want to enable the division processing according to the user's request even after starting the document reading, S15. This process is omitted, and the processing time for reading a plurality of pages of a document and generating a file is shortened.

  The present invention is not limited to the configuration of the above embodiment, and various modifications can be made. The configuration and processing shown in the above embodiment using FIG. 1 to FIG. 11 are only one embodiment of the present invention, and are not intended to limit the present invention to the configuration and processing.

DESCRIPTION OF SYMBOLS 1 Image forming apparatus 5 Document reading part 100 Control part 102 Division | segmentation instruction | indication reception part 103 Selection reception part 104 Detection part 105 2nd detection part 106 File generation part 107 Notification part 108 Notification instruction | indication reception part

Claims (7)

A document reading unit that reads a multi-page document image;
A file generation unit for generating a file from an image of a document on each page read by the document reading unit;
The image of each document read continuously by the document reading unit is compared with the image of the document read by the document reading unit as a partition reference document, and an image similar to the reference document for partition is compared with the partition image. And a detection unit for detecting as
The file generation unit divides each image of a plurality of pages of documents read by the document reading unit into image groups before and after the page at the page position of the partition image detected by the detection unit, and An image reading apparatus that generates a file for each of the image groups without including an image of a page of a partition image.   2. The image reading apparatus according to claim 1, wherein the reference document for partitioning is a first page of a plurality of pages read continuously by the document reading unit. A storage unit for storing image data;
The partition reference document is read by the document reading unit prior to the plurality of documents, and the read image is stored in the storage unit as the partition image before the document reading by the document reading unit. The image reading apparatus according to claim 1. A division instruction receiving unit that receives a division instruction to divide an image of a plurality of pages of documents read continuously by the document reading unit at the page position of the partition image;
The file generator
When the division instruction is received by the detection unit when the division instruction reception unit receives the division instruction, the original reading unit reads the partition image detected by the detection unit at the page position. Dividing each image of the plurality of pages of the document into image groups before and after the page, and generating a file for each of the image groups without including the page image of the partition image,
4. The image according to claim 1, wherein when the division instruction receiving unit has not received the division instruction, each image of a plurality of pages of documents read by the document reading unit is generated as one file. 5. The image reading apparatus described. If the division instruction is not received by the division instruction receiving unit and the detection unit detects the partition image, whether to divide the images of the plurality of documents and generate a file for each of the image groups A notification section for performing a notification process for inquiring the user whether or not,
When the division instruction is received by the division instruction receiving unit after the notification process by the notification unit, the file generation unit is configured to detect the page position of the partition image detected by the detection unit at the document reading unit. 5. The file is generated for each of the image groups by dividing each image of the read document of a plurality of pages into an image group before and after the page and not including an image of the page of the partition image. Image reading apparatus. A notification instruction receiving unit for receiving a notification instruction as to whether or not to perform the notification process;
The notification unit performs the notification process when the notification instruction reception unit receives the notification instruction, and does not perform the notification process when the notification instruction reception unit does not receive the notification instruction. The image reading apparatus according to 5. A second detection unit for detecting, as the partition image, a document similar to a predetermined plain document from images of a plurality of pages of documents continuously read by the document reading unit;
A selection receiving unit that receives a selection of an image used for detection of the partition image,
The file generator
When the selection receiving unit receives selection of an image of the reference document for partitioning as a document used for detection of the partition image, the document reading unit reads the image at the position of the partition image detected by the detection unit. Each image of a plurality of pages of the document is divided into image groups before and after the page, and a file is generated for each of the image groups without including the page image of the partition image,
When the selection accepting unit accepts selection of the predetermined plain original as an original used for detection of the partition image, the original reading unit reads the partition image detected by the second detection unit. A file is generated for each of the image groups by dividing each image of the plurality of pages of the original document into image groups before and after the page and not including the image of the page of the partition image. 6. The image reading device according to any one of 6 above.