JP2013258768A - Image display control device, image display control method, image processing system, and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display control device and an image display control method by which, when image data obtained by reading document images of a double-sided document is acquired, an image of a page eliminated as blank paper can be inserted; an image processing system including the image display control device and an image reading device; and a computer program for achieving the image display control device.SOLUTION: A reception unit 102 of a PC 1 receives image data applied with page numbers by a scanner 4 reading document images of a plurality of double-sided documents. A display control unit 106 detects missing page number from the page numbers to be continuously applied to the received image data, inserts a plain image into the received image data correspondingly to the detected page number, and displays by alternately switching a front face image and a rear face image based on the image data inserted with the plain image on a screen of a display unit 13 in order of the page numbers.

Description

  The present invention realizes an image display control device that acquires image data and controls image display, an image display control method, an image reading device, an image processing system including the image display control device, and the image display control device. Relates to a computer program.

  Conventionally, OA devices such as copiers, facsimiles, scanners, digital multi-function peripherals and the like have been used as offices for reading original images with an image sensor such as a CCD (Charge Coupled Devices) and performing various processing on the acquired image data. Is popular. For example, the copier performs a process of forming an image based on the read image data on a print sheet, and the facsimile performs a process of transmitting the read image data to another facsimile communication device. Further, the scanner performs processing for storing the read image data in a storage device of the device itself and processing for transmitting the image data to another device such as a PC (personal computer). The digital multi-function peripheral has the functions of these OA devices.

  When reading original images of a plurality of originals in such an OA device, if both originals and blank originals are mixed in the original, the image data obtained by reading the original images is stored in the memory. It is desired that image data corresponding to a blank page can be deleted (hereinafter referred to as blank page removal) before an image based on the image data is formed on the printing paper.

  On the other hand, Patent Document 1 discloses an image reading apparatus that determines whether or not a document is blank based on image data obtained by scanning a document image, and removes the blank when it is determined to be blank. In Patent Document 2, the result of determining whether or not the input image (here, the same as the image data) is blank is temporarily stored as an image attribute together with the image, and the image having the blank attribute is removed. An image input / output device for outputting an image having no blank attribute is disclosed.

  On the other hand, when displaying a double-sided image, for example, in a device that acquires image data generated by the above-described image reading device and a device that inputs an image (image data) output from the image input / output device, a blank page is displayed. In order to display the image as white as it is, it is preferable that the acquired and input image data is not subjected to blank sheet removal.

JP-A-10-229484 JP 2006-180343 A

  However, the image reading apparatus and the image input / output apparatus disclosed in Patent Documents 1 and 2 described above have a problem in that blank sheet removal cannot be disabled from other apparatuses. For example, in TWAIN (Technology Without an Interesting Name; registered trademark), which is a standard API specification, it is possible to instruct whether or not to read a document on both sides from one device to another device. An interface for instructing on / off of blank page removal is not supported.

  The present invention has been made in view of such circumstances, and an object of the present invention is to insert an image of a page from which a blank page has been removed when acquiring image data obtained by reading a document image of a double-sided document. An image display control apparatus and an image display control method capable of performing the above, an image reading apparatus, an image processing system including the image display control apparatus, and a computer program for realizing the image display control apparatus.

  An image display control apparatus according to the present invention includes a receiving unit that receives image data obtained by reading a document image of a plurality of double-sided documents and assigned page numbers, and pages that are to be continuously added to the received image data. Based on a missing page detection unit that detects a missing page number from a number, an insertion unit that inserts a plain image into received image data in correspondence with the detected page number, and image data in which a plain image is inserted And a display control unit that alternately switches and displays the front and back images on the screen in the order of page numbers.

  An image display control apparatus according to the present invention includes a ground color detection unit that detects a ground color of a document based on received image data, and the insertion unit includes a page having a page number detected by the missing page detection unit. One page of image data having the same color as the ground color detected by the ground color detection unit is inserted into the included document.

  An image display control method according to the present invention uses an image display control device to receive image data to which a document image of a plurality of double-sided originals has been read and assigned page numbers, and is continuous with the received image data. Detecting a missing page number from the page numbers to be assigned, inserting a plain image into the received image data in correspondence with the detected page number, and a surface image based on the image data with the plain image inserted; and The back image is alternately displayed on the screen in the order of page numbers.

  A computer program according to the present invention obtains image data and displays an image based on the image data on a computer that reads the image of a plurality of double-sided originals and assigns page numbers to the image data. A computer program for controlling display, wherein a step of causing a computer to detect a missing page number from page numbers to be consecutively assigned to acquired image data, and a computer corresponding to the detected page number A step of inserting image data for one plain page into the acquired image data; a step of alternately switching and displaying a front image and a back image based on the image data with the plain image inserted on the screen in the order of page numbers; It is characterized by including.

  An image processing system according to the present invention includes a reading unit that reads a document image of a plurality of double-sided originals and generates image data assigned page numbers, and a page including an image based on the image data generated by the reading unit is plain. A determination unit that determines whether or not there is, an exclusion unit that excludes image data related to a page that the determination unit determines to be plain from the image data generated by the reading unit, and image data generated by the reading unit Among them, an image reading apparatus having a transmission unit for transmitting image data other than the image data excluded by the exclusion unit to the outside, and image data to which document images of a plurality of double-sided originals are read and assigned page numbers A receiving unit for receiving, a missing page detecting unit for detecting a missing page number from page numbers to be consecutively given to the received image data, and a plain image in the received image data in correspondence with the detected page number An image display control apparatus having an insertion unit for inserting image data for a page, and a display control unit for alternately switching and displaying a front image and a back image based on the image data in which a plain image is inserted on the screen in order of page numbers; It is characterized by providing.

In the present invention, the original image of a plurality of double-sided originals is read and image data to which page numbers are assigned is received, and the page numbers that are missing from the page numbers that should be assigned consecutively to the received image data In response to the detected page number, a plain image is inserted into the received image data, and the front image and the back image based on the image data with the plain image inserted are alternately displayed in the order of the page numbers on the screen. Display switching.
As a result, when image data obtained by reading a document image of a double-sided document is acquired and a page from which a blank page is removed is detected, a plain image corresponding to the detected blank page is inserted into the acquired image data.

In the present invention, a ground color is detected for a document including a page having a page number that is missing from the image data, and image data for one page having the same color as the detected ground color is received in the received image data. insert.
Thus, when the front and back images based on the acquired image data are alternately switched and displayed, the ground colors of the front and back surfaces of the switched and displayed images are the same color.

In the present invention, the image reading device reads the document images of a plurality of double-sided originals, generates image data to which page numbers are assigned, and whether or not a page including an image based on the generated image data is plain. The image data relating to the page determined to be plain is excluded from the generated image data, and the generated image data other than the excluded image data is transmitted to the outside.
The image display control device receives image data obtained by reading a plurality of double-sided original images and assigning page numbers, and missing pages from the page numbers to be consecutively assigned to the received image data. A number is detected, and a plain image is inserted into the received image data in correspondence with the detected page number.
As a result, the original image of the double-sided original is removed and read by the image reading device, and the image data assigned with the page number is given to the image display control device. When the image display control apparatus detects a page from which the blank page has been removed from the acquired image data, it inserts a plain image corresponding to the detected blank page into the acquired image data. Therefore, when the front image and the back image based on the image data processed by the image reading apparatus are alternately switched and displayed, the front and back images of the double-sided document are displayed without omission.

According to the present invention, when the image data of a plurality of double-sided originals is read and the page number is given, the plain image corresponding to the page number where the missing is detected is inserted into the received image data. To do.
As a result, when image data obtained by reading a document image of a double-sided document is acquired and a page from which a blank page is removed is detected, a plain image corresponding to the detected blank page is inserted into the acquired image data. Therefore, when the image data obtained by reading the document image of the double-sided document is acquired, it is possible to insert the image of the page from which the blank page has been removed.

It is a block diagram which shows the structure of the network scanner system provided with the scanner and PC concerning Embodiment 1 of this invention. It is explanatory drawing which shows the example which switches and displays the surface image and back surface image of several original documents by order of a page number on the screen on LCD of a display part. It is a flowchart which shows the process sequence of CPU in case a PC displays the image based on the image data which the scanner read the double-sided original. It is a flowchart which shows the process sequence of CPU in case a PC displays the image based on the image data which the scanner read the double-sided original. It is a block diagram which shows the structure of the network scanner system provided with the scanner and PC concerning Embodiment 2 of this invention. 6 is a flowchart illustrating a processing procedure of a CPU when a PC inserts a blank page into image data obtained by reading a double-sided original with a scanner and removing blank pages. 6 is a flowchart illustrating a processing procedure of a CPU when a PC inserts a blank page into image data obtained by reading a double-sided original with a scanner and removing blank pages.

Hereinafter, embodiments in which the image reading apparatus and the image display control apparatus of the image processing system according to the present invention are applied to a scanner and a PC (personal computer) will be described in detail.
(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of a network scanner system including a scanner and a PC according to Embodiment 1 of the present invention. The network scanner system according to the first embodiment includes a scanner (image reading apparatus) 4 and a PC 1 connected to the scanner 4 via a LAN 3.

  The PC 1 includes a CPU 10 that is a control center, and the CPU 10 is bus-connected to a ROM 11 that stores information such as a program and a RAM 12 that stores temporarily generated information. The CPU 10 executes processing such as input / output processing and calculation in accordance with a control program stored in advance in the ROM 11. The PC 1 is also connected to the LAN 3, a display unit 13 composed of an LCD that displays various information, settings, and the like on the screen, a keyboard 14 and a mouse 15 for accepting various settings, instructions, and selection operations. The LAN interface 16 is connected to each other via a bus. The LAN 3 is not limited to a standard wired LAN line, but may be a wireless LAN line or a communication line other than the LAN.

  Each functional block of the CPU 10 is realized by software. The transmission unit 101 has a function of transmitting various instructions to the scanner 4 via the LAN interface 16 and the LAN 3 (hereinafter simply referred to as the LAN 3). The receiving unit 102 has a function of receiving and acquiring image data from the scanner 4 via the LAN 3 and providing the acquired image data to the display control unit 106. The display control unit 106 generates a plurality of sets of front and back images whose image size is smaller than that of the original image based on the image data given from the receiving unit 102, and displays both images of the generated sets on the screen. The function of displaying in the order of page numbers in a plurality of predetermined display areas is provided.

  Next, the scanner 4 includes a CPU 40 that is a control center, and the CPU 40 is bus-connected to a ROM 41 that stores information such as a program and a RAM 42 that stores temporarily generated information. The CPU 40 executes processes such as input / output processing and calculation according to a control program stored in the ROM 41 in advance. The scanner 4 also includes a display unit 43 composed of an LCD for displaying various information, contents of settings and the like and images on the screen, and an operation unit 44 having keys for receiving various settings, instructions, selections, and the like. , And a LAN interface 16 for connecting to the LAN 3, which are connected to each other by a bus.

The scanner 4 further includes a document reading unit 46 that reads a document image of a double-sided document and generates image data, and a page memory 47 that temporarily stores the image data generated by the document reading unit 46 for each page. With. The image data stored in the page memory 47 is subjected to image processing by the image processing unit 48 and stored in the image memory 49 as a series of image data. The document reading unit 46 reads a plurality of double-sided documents placed on a document tray (not shown) one by one to a predetermined reading site, and reads the upper surface (front surface) of the document conveyed to the reading site. The upper surface reading unit 461 and the lower surface reading unit 462 for reading the lower surface (back surface) of the document.
Note that each of the upper surface reading unit 461 and the lower surface reading unit 462 has one (one set) image sensor, but one reading unit has one (one set) image sensor, and the upper surface and the upper surface of the document. The lower surface may be read.

  The image processing unit 48 performs processing for correcting various distortions generated in the image data in the illumination system, the imaging system, and the imaging system of the document reading unit 46.

  Each functional block of the CPU 40 is realized by software. When receiving a double-sided document reading instruction or a blank page removal invalid instruction from the PC 1 via the LAN 3, the receiving unit 403 gives a message to that effect to the exclusion unit 404, and receives a double-sided document reading instruction when receiving a double-sided document reading instruction. The function given to the unit 401 is provided. The accepting unit 401 has a function of accepting a reading instruction of a double-sided document given from the operation unit 44 from an application program (hereinafter referred to as an application) executed by the CPU 40 or from the receiving unit 403, and giving this to the reading unit 402. Play.

  The reading unit 402 starts reading by the document reading unit 46 when the reception unit 401 gives an instruction that a double-sided document reading instruction has been received, and performs image processing on the image data of each page stored in the page memory 47. The processing is performed by the unit 48, and a series of image data is stored in the image memory 49, so that the read image data is provided to the determination unit 405 and the exclusion unit 404. The determination unit 405 determines whether or not each page of the document is plain based on the image data given from the reading unit 402, and provides the exclusion unit 404 with information specifying the page determined to be plain. Play.

  The excluding unit 404 has a function of excluding the image data related to the page specified by the information given from the determining unit 405 from the image data given from the reading unit 402 and giving it to the transmitting unit 406. However, when receiving from the receiving unit 403 that a double-sided original reading instruction or a blank sheet removal invalid instruction has been received, image data is not excluded. The transmission unit 406 has a function of transmitting the image data given from the exclusion unit 404 to the PC 1 via the LAN 3.

  In the configuration described above, after a plurality of double-sided originals are placed on a document tray (not shown) of the scanner 4, for example, when a double-sided original reading instruction given from the operation unit 44 is received, or double-sided transmitted from the PC 1. When a document reading instruction is received, the scanner 4 reads the document images on the front and back surfaces of each double-sided document and generates image data. The generated image data is corrected for various distortions, encoded, and stored in the image memory 49. In this case, a continuous page number is assigned as the page serial number for each of the front and back sides of the read document, and the image data constituting the document image is blocked for each page, and the page number is added to the header of each page. It has become so. Further, an attribute indicating that the read original is a double-side original is added to the entire image data.

Each time image data for one page is stored in the image memory 49, the scanner 4 removes blank pages from the image data as necessary and stores the image data for all pages in the image memory 49. Data is transmitted to PC1 via LAN3. The image data received by the PC 1 is stored in an image memory (not shown) secured on the RAM 12. The image data stored in the image memory 49 after removing blank pages may be transmitted to the PC 1 each time one page is stored, for example. Further, when removing blank paper, the page number of the removed page is a missing number.
After that, when image data of all pages is received and stored in the image memory, the PC 1 generates a plurality of sets of front and back images whose image size is reduced from the original image, and generates both sets of the generated sets. Images are displayed on the LCD of the display unit 13 in the order of page numbers.

  FIG. 2 is an explanatory diagram showing an example in which the front and back images of a plurality of documents are alternately switched and displayed in the order of page numbers on the screens 130 and 131 on the LCD of the display unit 13. In the eight display areas arranged in two rows at the top and bottom of the screen 130, the surface images of the originals having odd page numbers are displayed in ascending order for a predetermined time. In the eight display areas of the screen 131, the back image of each document having an even page number is displayed in ascending order for a certain time. Then, such display switching is repeated. Therefore, the front image and the back image of each original are switched and displayed in a specific display area on each of the screens 130 and 131 so that they can be easily seen at regular intervals. For example, even if the back side of the fourth original, that is, the page with the page number 8 is blank, the image data received by the PC 1 from the scanner 4 includes blank data, so the page number is 7 A blank page is correctly displayed as the page on the back side of.

Hereinafter, operations performed by the scanner 4 and the PC 1 according to the first embodiment of the present invention will be described with reference to flowcharts.
3A and 3B are flowcharts showing processing procedures of the CPUs 40 and 10 when the PC 1 displays an image based on image data obtained by the scanner 4 reading a double-sided original. The following processing is executed by the CPU 40 of the scanner 4 and the CPU 10 of the PC 1 according to control programs stored in advance in the ROM 41 of the scanner 4 and the ROM 11 of the PC 1, respectively. The CPU 40 of the scanner 4 starts the following processing when a double-sided document is placed on a document tray (not shown) and ready for reading. The CPU 10 of the PC 1 starts the following processing when it becomes possible to accept an instruction relating to reading of a document given from an application.
In the first embodiment, the blank sheet removal flag is stored in the RAM 42. In the following, the image data received by the PC 1 and the image generated for display are stored in the RAM 12.

  When the processing of FIG. 3A is started, the CPU 40 of the scanner 4 sets “1” to the blank sheet removal flag as part of the initialization (S101), and instructs to read a double-sided document given from the operation unit 44 or from the application. Is determined (S102), and if it is determined (S102: YES), the process proceeds to step S110 described later. When it is determined that there is no reading instruction (S102: NO), the CPU 40 determines whether a blank sheet removal invalid instruction is received from the PC 1 (S103). If it is determined that a blank page removal invalid instruction has been received (S103: YES), the CPU 40 clears the blank page removal flag to “0” (S104).

When the process of step S104 is completed, or when it is determined in step S103 that a blank sheet removal invalid instruction has not been received (S103: NO), has the CPU 40 received a reading instruction related to double-sided reading or single-sided reading from the PC 1? It is determined whether or not (S105). When it determines with not having received (S105: NO), CPU40 returns a process to step S102.
As described above, the CPU 40 of the scanner 4 repeatedly executes the processing from step S102 to step S105 until a reading instruction is given from the operation unit 44 or the application, or a blank paper removal invalid instruction or reading instruction is received from the PC 1.

  On the other hand, the CPU 10 of the PC 1 determines whether or not a blank page removal invalid instruction has been given from the application (S201). If it is determined that the blank page removal invalid instruction has been given (S201: YES), the blank page removal invalid instruction is transmitted to the scanner 4. (S202). When the process of step S202 is completed, or when it is determined in step S201 that a blank page removal invalid instruction has not been given (S201: NO), the CPU 10 determines whether or not a document reading instruction has been given from the application. (S203). When it determines with not being given (S203: NO), CPU10 returns a process to step S201.

  If it is determined that an original reading instruction is given from the application (S203: YES), the CPU 10 determines whether the reading instruction is an instruction relating to double-sided reading (S204). When it is determined that the instruction is for double-sided scanning (S204: YES), the CPU 10 sets a double-sided scanning parameter to be transmitted to the scanner 4 (S205). In this case, a parameter (information) indicating whether the front image and the back image are alternately switched and displayed by the application is also set. When the process of step S205 is completed, or when it is determined in step S204 that the instruction is not for double-sided reading (S204: NO), the CPU 10 issues a reading instruction for double-sided reading or single-sided reading together with parameters to the scanner 4. The transmission is performed (S206), and the process proceeds to step S209 described later.

Returning to the processing of the scanner 4, if it is determined in step S105 that a reading instruction has been received from the PC 1 (S105: YES), the CPU 40 determines whether the received parameter includes a double-sided reading parameter (S106). . When it is determined that there is a parameter (S106: YES), the CPU 40 determines whether there is a parameter indicating that the front image and the back image are alternately displayed (S107). If it is determined that there is a parameter (S107: YES), the CPU 40 clears the blank sheet removal flag to “0” (S108). In the case of double-sided scanning, when the front image and the back image are alternately switched and displayed on the PC 1 in principle, the parameter indicating whether or not to switch the display is set in step S205 of the PC 1, and the step S107 of the scanner 4 is not set. What is necessary is just not to perform a process (a process is skipped).
When the process of step S108 is completed, or when it is determined that there is no parameter in steps S106 and S107 (S106, S107: NO), the CPU 40 causes the document reading unit 46 to start reading the document (S110).

  Thereafter, the CPU 40 determines whether or not the page memory 47 has completed storing one page (S111). If it is determined that it has not been completed (S111: NO), the CPU 40 waits until the page memory 47 completes storage. When it is determined that the page memory 47 has completed the storage (S111: YES), the CPU 40 causes the image processing unit 48 to start predetermined image processing (S112). Next, the CPU 40 determines whether or not the image processing unit 48 has completed the image processing for one page (S113). When it is determined that the image processing has not been completed (S113: NO), the CPU 40 waits until the image processing unit 48 completes the image processing.

  When it is determined that the image processing unit has completed the image processing (S113: YES), the CPU 40 determines whether or not the page for which the image processing has been completed is a blank page (S114). When it is determined that the page is a blank page (S114: YES), the CPU 40 determines whether or not the blank page removal flag is set to “1” (S115). If it is determined that the page is set (S115: YES), the CPU 40 deletes the image data of the page determined to be a blank page from the image memory 49 (blank page removal) (S116). In this case, the page number of the page from which the blank page is removed is a missing number.

  When the process of step S116 is completed, when it is determined at step S114 that the page is not a blank page (S114: NO), or when it is determined at step S115 that the blank page removal flag is not set to “1” (S115: NO), the CPU 40 determines whether or not the page for which image processing has been completed is the last page (S117). If it is determined that it is not the last page (S117: NO), that is, if it is determined that the image data of all pages is not stored in the image memory 49, the CPU 40 returns the process to step S111.

  When it is determined that the page on which image processing has been completed is the last page (S117: YES), the CPU 40 transmits image data for one page from the image memory 49 (S118), and whether the transmitted page is the last page. It is determined whether or not (S119). If it is determined that the page is not the last page (S119: NO), the CPU 40 returns the process to step S118. When it determines with it being the last page (S119: YES), CPU40 complete | finishes a process.

  Returning to the processing of the PC 1 again, the CPU 10 of the PC 1 stands by until it receives the image data of all pages from the scanner 4 (S209: NO), and determines that it has received the image data of all pages (S209: YES), as illustrated in FIG. 2, the front image and the back image of each document based on the received image data are alternately switched and displayed in the order of page numbers (S210), and the process is terminated.

As described above, according to the first embodiment, when the scanner receives an instruction to read a double-sided original, the scanner reads a plurality of double-sided originals for each page, generates image data, and generates the generated image data. Based on this, it is determined whether each page of the document is blank (solid), image data related to the page determined to be blank is excluded, and generated image data other than the excluded image data is transmitted to the PC. . When the scanner receives and accepts a blank sheet removal invalidation instruction or a double-sided original reading instruction transmitted from the PC, the scanner prohibits the exclusion of image data in principle.
On the other hand, when the PC transmits the blank sheet removal invalidation instruction and the double-sided original reading instruction to the scanner, and receives the image data to which the original images of a plurality of double-sided originals are read page by page and assigned page numbers. Then, the front and back images based on the received image data are alternately switched and displayed in the order of page numbers.

As a result, when the scanner reads a double-sided document, even when it normally removes a blank page, when it receives an instruction to read a double-sided document from the outside, the image data generated by scanning the double-sided document is basically a blank page. Do not remove.
Therefore, when the scanner reads a document image of a double-sided document, it is possible to instruct the scanner to turn on / off blank paper from the outside.

In addition, a parameter indicating that the front and back images based on the image data are alternately switched and displayed on the PC is received from the PC, and when the double-sided document reading instruction is received from the PC, the received parameter is switched. When indicating the display, the exclusion of image data is prohibited.
Therefore, when a plurality of double-sided originals are read page by page upon receiving an instruction to read a double-sided original from the outside, it is assumed that the front image and the back image are alternately switched and displayed externally. Only it is possible not to perform blank paper removal.

  In the first embodiment, when a blank sheet removal invalidation instruction or a double-sided original reading instruction is received from the PC 1, in principle, the exclusion of image data is prohibited for pages determined to be blank. However, the present invention is not limited to this, and the determination of whether or not the page is a blank page may be prohibited so that image data is not excluded. In this case, the processing order of steps S114 and S115 in FIG. 3B may be reversed so that it is not determined whether or not the page is a blank page when the blank page removal flag is set to “1”.

  Further, the display unit 13 of the PC 1 alternately switches and displays the front image and the back image based on the image data obtained by the scanner 4 reading the double-sided document. However, the present invention is not limited to this. Based on this, the display unit 43 of the scanner 4 may alternately display the front image and the back image. In this case, if it is determined in step S102 of FIG. 3A that there is an instruction to read a double-sided document given from the operation unit 44 or from the application (S102: YES), the process proceeds to step S107. However, it is assumed that the parameter indicating that the front image and the back image are alternately switched and displayed is given from the operation unit 44 or from the application.

(Embodiment 2)
The first embodiment is a mode in which the scanner 4 has a function of removing blank pages, and the function is disabled when, for example, an instruction to read a double-sided document is received from the PC 1, whereas the second embodiment is different from the first embodiment. In this mode, when the blank page removal function of the scanner cannot be disabled from the outside, when the PC receives the image data from which the blank page has been removed, the PC side inserts the blank page image data.

  FIG. 4 is a block diagram showing a configuration of a network scanner system including a scanner and a PC according to Embodiment 2 of the present invention. The network scanner system according to the second embodiment includes a scanner (image reading apparatus) 400 and a PC 100 connected to the scanner 400 via a LAN 3.

  The PC 100 includes a CPU 110 that is a control center, and the CPU 110 is bus-connected to a ROM 11 that stores information such as programs and a RAM 12 that stores temporarily generated information. Other blocks connected to the CPU 110 by the bus are the same as the blocks connected to the CPU 10 of the first embodiment by the bus, and thus detailed description thereof is omitted.

  Each functional block of the CPU 110 is realized by software. The transmission unit 101 has a function of transmitting a double-sided document reading instruction to the scanner 400 via the LAN 3. The receiving unit 102 receives and acquires image data from the scanner 400 via the LAN 3, and supplies the acquired image data to the missing page detection unit 103, the ground color detection unit 104, and the blank page insertion unit (insertion unit) 105. Play a function. The missing page detection unit 103 detects the missing page number from the presence / absence of the continuity of the page number embedded in the header for each page of the image data given from the receiving unit 102, and the detection result is the ground color detection unit 104. And a function to be given to the blank page insertion unit 105.

  The ground color detection unit 104 detects the ground color of the document based on the image data received one page before (or after one page) the missing page number given from the missing page detection unit 103, and the detected ground color is detected. The function to be given to the blank page insertion unit 105 is provided. That is, when a blank original is read as a double-sided original and the blank is removed, if an even (or odd) page number is missing, the previous odd page (or the next even page) ) Detects the background color of the document as corresponding to the front surface (or back surface) of the same document.

  The blank page insertion unit 105 applies a blank blank page with the same color as the ground color detected by the ground color detection unit 104 for the page number given from the missing page detection unit 103 to the image data given from the reception unit 102. It has a function of inserting image data together with page numbers. The display control unit 106 generates a plurality of sets of front and back images whose image size is smaller than that of the original image based on the image data provided from the blank page insertion unit 105, and generates both sets of the generated images. There is a function of displaying in order of page numbers within a plurality of predetermined display areas on the screen.

  Next, the scanner 400 includes a CPU 140 that is a control center, and the CPU 140 is connected to a ROM 41 that stores information such as a program and a RAM 42 that stores temporarily generated information. The other blocks connected to the CPU 140 by the bus are the same as the blocks connected to the CPU 40 of the first embodiment by the bus, and thus detailed description thereof is omitted.

  Each functional block of the CPU 140 is realized by software. Compared with each functional block of the CPU 40 of the first embodiment, the receiving unit 403 has a function of receiving a double-sided document reading instruction from the PC 100 via the LAN 3 and giving the fact to the receiving unit 401. Further, the exclusion unit 404 has a function of unconditionally excluding the image data related to the page specified by the information given from the determination unit 405 from the image data given from the reading unit 402 and giving it to the transmission unit 406. . Since other functional blocks are the same as those in the first embodiment, detailed description thereof is omitted.

  In the above-described configuration, after a plurality of double-sided originals are placed on a document tray (not shown) of the scanner 400, for example, when a double-sided original reading instruction given from the operation unit 44 is received, or a double-sided original sent from the PC 100 When the scanning instruction is received, the scanner 400 reads the document images on the front and back sides of each double-sided document to generate image data. The generated image data is stored in the image memory 49 as in the first embodiment, but is different from the first embodiment in that blank pages are always removed.

  Thereafter, when the image data of all pages is transmitted to the PC 100 and stored in an image memory (not shown) of the PC 100, the PC 100 inserts the image data of the page from which the blank page is removed together with the page number into the received image data. Then, the PC 100 generates a plurality of sets of front and back images whose image size is reduced from that of the original image, and displays both of the generated sets of images on the LCD of the display unit 13 in the order of page numbers.

Hereinafter, operations performed by the scanner 400 and the PC 100 according to the second embodiment of the present invention will be described with reference to flowcharts.
FIGS. 5A and 5B are flowcharts showing the processing procedure of the CPUs 140 and 110 when the PC 100 inserts a blank page into the image data from which the scanner 400 reads a double-sided original and removes the blank page. The following processing is executed by the CPU 140 of the scanner 400 and the CPU 110 of the PC 100 according to control programs stored in advance in the ROM 41 of the scanner 400 and the ROM 11 of the PC 100, respectively. The CPU 140 of the scanner 400 starts the following process when a double-sided document is placed on a document tray (not shown) and ready for reading. The CPU 110 of the PC 100 starts the following processing when it is possible to accept an instruction related to reading a document given from an application.

When the processing in FIG. 5A is started, the CPU 140 of the scanner 400 determines whether or not there is a double-sided original reading instruction given from the operation unit 44 or from the application (S122), and determines that there is no reading instruction. (S122: NO), the CPU 140 determines whether or not a reading instruction is received from the PC 100 (S125). When it determines with not having received (S125: NO), CPU140 returns a process to step S122.
As described above, the CPU 140 of the scanner 400 repeatedly executes the processing from steps S122 to S125 until it receives a reading instruction from the operation unit 44 or the application or receives a reading instruction from the PC 100.

  When it is determined that the reading instruction is received from the PC 100 (S125: YES), or when it is determined that the reading instruction is received from the operation unit 44 or the application (S122: YES), the CPU 140 causes the document reading unit 46 to read the document. Start (S130). Thereafter, the CPU 140 determines whether or not the page memory 47 has completed storing one page (S131). If it is determined that it has not been completed (S131: NO), the CPU 140 waits until the page memory 47 completes storage. When it is determined that the page memory 47 has completed the storage (S131: YES), the CPU 140 causes the image processing unit 48 to start predetermined image processing (S132).

  Next, the CPU 140 determines whether or not the image processing unit 48 has completed the image processing for one page (S133). When it is determined that the image processing has not been completed (S133: NO), the CPU 140 waits until the image processing unit 48 completes the image processing. When it is determined that the image processing unit has completed the image processing (S133: YES), the CPU 140 determines whether the page on which the image processing has been completed is a blank page (S135). When it is determined that the page is a blank page (S135: YES), the CPU 140 deletes the image data of the page determined to be a blank page from the image memory 49 and removes the blank page (S136). In this case, the page number of the page from which the blank page is removed is a missing number.

  When the process of step S136 is completed, or when it is determined in step S135 that the page is not a blank page (S135: NO), the CPU 140 determines whether the page for which image processing has been completed is the last page (S137). ). When it is determined that it is not the last page (S137: NO), that is, when it is determined that the image data of all pages is not stored in the image memory 49, the CPU 140 returns the process to step S122.

  If it is determined that the page on which image processing has been completed is the final page (S137: YES), the CPU 140 transmits image data for one page from the image memory 49 (S138), and whether the transmitted page is the final page. It is determined whether or not (S139). If it is determined that the page is not the last page (S139: NO), the CPU 140 returns the process to step S138. If it is determined that the current page is the last page (S139: YES), the CPU 140 ends the process.

  On the other hand, the CPU 110 of the PC 100 determines whether a document reading instruction is given from the application (S221). If it is determined that it has not been given (S221: NO), CPU 110 waits until a document reading instruction is given. When it is determined that a document reading instruction is given from the application (S221: YES), the CPU 110 transmits a reading instruction to the scanner 400 (S222).

  Thereafter, the CPU 110 determines whether image data for one page has been received from the scanner 400 (S225), and waits until it is received (S225: NO). If it is determined that one page of image data has been received (S225: YES), the CPU 110 reads the page number embedded in the header of the received image data, and whether there is a missing page due to the continuity of the page number. It is determined whether or not (S226). If it is determined that there is a missing page (S226: YES), the CPU 110 detects the background color of the document based on the image data received one page before the missing page (S227), and is the same color as the detected background color. The blank page image data is inserted into a series of image data (S228). In this case, a page number is added to the header of the inserted image data.

  When the process of step S228 is completed, or when it is determined in step S226 that there is no missing page (S226: NO), the CPU 110 determines whether image data for all pages has been received (S229). When it determines with not having received (S229: NO), CPU110 returns a process to step S225. When it is determined that the image data of all pages has been received (S229: YES), as illustrated in FIG. 2, the front image and the back image of each document based on the received image data are alternately switched and displayed in the order of page numbers ( S230), the process ends.

  In addition, the same code | symbol is attached | subjected to the location corresponding to Embodiment 1, and the detailed description is abbreviate | omitted.

As described above, according to the second embodiment, the PC receives the image data with the page numbers assigned by reading the document images of a plurality of double-sided originals with the scanner, and continues to the received image data. A surface image based on image data in which a plain image is inserted into the received image data by detecting a missing page number from the page number to be assigned in response to the detected page number. And the reverse image are alternately displayed on the screen in the order of page numbers.
On the other hand, the scanner reads the original images of a plurality of double-sided originals, generates image data to which page numbers are assigned, and determines whether or not a page including an image based on the generated image data is blank (solid). The image data related to the page determined to be blank is excluded from the generated image data, and the generated image data other than the excluded image data is transmitted to the PC.

Accordingly, when the PC acquires image data obtained by reading the original image of the double-sided original with the scanner and detects a page from which the blank page is removed, the PC includes a blank page corresponding to the detected blank page in the acquired image data. Insert an image.
Accordingly, when the PC acquires the image data obtained by reading the document image of the double-sided document, it is possible to insert the image of the page from which the blank page has been removed.

Further, the PC detects the ground color of the document including the page having the page number missing from the image data, and inserts the image data for one page having the same color as the detected ground color into the received image data. .
Therefore, when displaying an image based on the image data acquired by the PC, the ground colors of the front and back surfaces of the displayed image are the same color.

In the second embodiment, the image data received by the PC 100 from the scanner 400 is continuously added to the received image data on the assumption that the original image of a double-sided original is read. The missing page number is detected only from the power page number, but the present invention is not limited to this.
For example, a missing page number may be detected only when the entire image data received by the PC 100 has a double-sided document attribute.
For example, in addition to the page number, information indicating whether each page corresponds to the front side or the back side of the document is added to the header of each page, and the PC 100 is missing based on the information and the page number. The page number may be detected.

  Further, on the assumption that blocks in page units are received in the order of page numbers, the PC 100 detects missing page numbers one page at a time, but there is a possibility that they will be received in an order different from the page order. Missing page numbers may be detected after data for all pages has been received.

  The present invention generates the image data by reading the above-described original image of a double-sided original on a computer-readable recording medium in which program code (executable program, intermediate code program, source program) for causing a computer to execute is recorded. It is also possible to record an image reading method that performs image acquisition and an image display control method that acquires image data and controls image display. Thereby, the recording medium which recorded the program which performs the said method can be provided freely.

  The recording medium may be, for example, a program medium such as a ROM, or a program medium that can be read by inserting the recording medium into a program reading device (not shown) provided as an external storage device. In any case, the stored program code may be configured to be accessed and executed by the CPU, or the program code may be read and downloaded to the program storage area of the RAM and executed. It may be. It is assumed that this download program is stored in the main device in advance.

  The program medium may be a medium in which the program code is fluidly supported so that the program code can be downloaded from a communication network including the Internet. When downloading the program code from the communication network in this way, the download program may be stored in the main device in advance or may be installed from another recording medium. The present invention can also be realized in the form of a computer data signal in which the program code is embedded in a carrier wave and transmitted electronically.

  The recording medium is read by, for example, a program reading device provided in a digital multi-function peripheral and a computer system, and the above-described image reading method and image display control method are executed by the CPU. The computer system includes an image input device such as a flatbed scanner, a film scanner, and a digital camera, a computer in which various processes such as the image reading method and the image display control method are performed by loading a predetermined program, and processing results of the computer Image display devices such as a CRT display and a liquid crystal display, and a printer that outputs the processing results of the computer to paper or the like. Furthermore, a communication means such as a network card and a modem for connecting to a server or the like via a network is provided.

1,100 PC (image display control device)
10, 40, 110, 140 CPU
101 Transmitter (second transmitter)
102 Receiving unit (second receiving unit)
103 Missing page detection unit 104 Ground color detection unit 105 Blank page insertion unit (insertion unit)
106 Display control unit 11, 41 ROM
12, 42 RAM
13, 43 Display unit 130, 131 Screen 16 LAN interface 3 LAN
4,400 scanner (image reading device)
401 receiving unit 402 reading unit 403 receiving unit (first receiving unit)
404 Exclusion unit 405 Determination unit 406 Transmission unit (first transmission unit)
46 Document reading section 49 Image memory

Claims (5)

A receiving unit for receiving image data to which page numbers are assigned by reading original images of a plurality of double-sided originals;
A missing page detection unit that detects a missing page number from the page numbers to be continuously given to the received image data;
An insertion unit that inserts a plain image into the received image data in correspondence with the detected page number;
An image display control device comprising: a display control unit that alternately switches and displays a front image and a back image based on image data in which a plain image is inserted on a screen in order of page numbers. A ground color detection unit for detecting the ground color of the document based on the received image data;
The insertion unit inserts image data for one page having the same color as the ground color detected by the ground color detection unit for a document including a page having a page number detected by the missing page detection unit. The image display control device according to claim 1. Using the image display control device, the original image of a plurality of double-sided originals is read and image data assigned page numbers is received,
Detecting missing page numbers from the page numbers that should be assigned consecutively to the received image data,
In correspondence with the detected page number, insert a plain image into the received image data,
An image display control method, wherein a front image and a back image based on image data in which a plain image is inserted are alternately displayed on the screen in the order of page numbers. A computer program that acquires image data and displays an image based on the image data, and controls display of the image based on image data obtained by reading a plurality of double-sided original images and assigning page numbers. And
Causing the computer to detect a missing page number from the page numbers to be continuously assigned to the acquired image data;
Causing the computer to insert image data for one plain page into the acquired image data in correspondence with the detected page number;
A computer program comprising: a step of alternately switching and displaying a front image and a back image based on image data in which a plain image is inserted on the screen in the order of page numbers. A reading unit that reads document images of a plurality of double-sided originals and generates image data to which page numbers are assigned, and a determination unit that determines whether or not a page including an image based on the image data generated by the reading unit is plain An exclusion unit that excludes image data relating to a page that is determined to be plain by the determination unit from image data generated by the reading unit, and an exclusion unit that excludes image data generated by the reading unit. An image reading apparatus having a transmission unit for transmitting image data other than image data to the outside;
A receiving unit that receives image data obtained by reading document images of a plurality of double-sided originals and assigned page numbers; a missing page that detects missing page numbers from page numbers that should be consecutively assigned to the received image data A detection unit, an insertion unit that inserts image data for one plain page into the received image data in correspondence with the detected page number, and a front image and a back image based on the image data in which the plain image is inserted An image display control apparatus comprising: an image display control device having a display control unit that alternately switches and displays the pages in order of page numbers.

Images