JP2016195314A - Image management system, image management device, control method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image management system capable of managing an image, the date and time of shooting of which are corrected, without changing the date and time of shooting of an image file stored in the camera body.SOLUTION: An image management system has registered image acquisition means for acquiring a registered image becoming a management object from a camera device, reference time display control means of the time becoming a reference used for correction of the date and time of shooting, reference time image acquisition means for acquiring a reference time image capturing the reference time displayed by reference time display control, reference image date and time of shooting acquisition means for acquiring the date and time of shooting given to the reference time image, reference time extraction means for extracting the displayed reference time from the reference time image, difference calculation means for calculating the difference between the date and time of shooting of the reference time image acquired by the reference image date and time of shooting acquisition means, and the displayed reference time acquired by the reference time image acquisition means, and date and time of shooting correction means for correcting the date and time of shooting given to the registered image acquired by the registered image acquisition means.SELECTED DRAWING: Figure 4

Description

The present invention relates to an image management system, an image management apparatus, a control method, and a technique related to a program.

  Recent camera devices have a function that can add time to an image. Since the time set in the camera device body is used, the time given to the photographic image may not be accurate.

  In order to solve this, Patent Document 1 proposes a system in which the function of a radio clock is attached to the camera, the date and time data of the camera body is updated to the time acquired from the radio wave, and the time of the image file in the camera is updated. ing.

JP 2012-117869 A

  According to Japanese Patent Application Laid-Open No. 2004-228561, the shooting date and time is changed for an image file by using a camera device that has shot the image. According to this, it was impossible to correct the shooting date and time based on the standard time for an image file shot by a camera device that does not have the function of Patent Document 1.

  In addition, since the date and time of the image file in the camera device is changed, the date and time of the original image is changed.

  Accordingly, an object of the present invention is to provide an image management system capable of managing an image whose shooting date / time has been corrected without changing the shooting date / time of an image file stored in the camera body.

  An image management system that can be connected to a camera device that can add a shooting date and time to a shot image, and that is used for correcting a shooting date and time, and a registered image acquisition unit that acquires a registered image to be managed from the camera device A reference time display control means that is a reference time to be acquired, a reference time image acquisition means for acquiring a reference time image obtained by photographing the reference time displayed by the reference time display control, and a photographing given to the reference time image Reference image shooting date and time acquisition means for acquiring date and time, reference time extraction means for extracting the displayed reference time from the reference time image, and shooting date and time of the reference time image acquired by the reference image shooting date and time acquisition means And difference calculation means for calculating a difference between the displayed reference time acquired by the reference time acquisition means and the registered image acquisition means. The shooting date and time given to the registered image, having a shooting date correction means for correcting in accordance with the calculated difference by the difference calculating means.

According to the present invention, it is possible to provide an image management system capable of managing an image whose shooting date / time is corrected without changing the shooting date / time of an image file stored in the camera body.

It is a system configuration diagram showing an example of a system configuration in the image management system of the present invention. It is a block diagram which shows the hardware constitutions applicable to the image management apparatus of this invention. It is a functional block diagram in the image management system of the present invention. It is a figure which shows an example of the upload screen of an image file in the image management system of this invention. It is a figure which shows an example of the date information image of the uploaded image file in the image management system of this invention. It is a flowchart which shows an example of the flow of the whole process in the image management system of this invention. It is a flowchart which shows an example of the date update process in the image management system of this invention. It is a flowchart which shows an example of the image list creation process in the image management system of this invention. It is a flowchart which shows an example of the image pick-up date update process in the image management system of this invention. It is a figure which shows an example of the data structure of the image list in the image management system of this invention. It is a figure which shows an example of Exif data in the image management system of this invention. It is a figure which shows an example of the warning screen of the image upload screen in the image management apparatus of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a system configuration diagram showing an example of a system configuration in the image management system of the present invention.

  A camera 101, an image capture device 104, and an image management device (WEB site (service) such as SNS) 106 can be connected via a network 105.

  The camera 101 is a digital camera that can add time information such as shooting date and time and Exif information such as position information (GPS information) to a shot image. As long as Exif information can be added, devices such as a portable terminal with a camera and a video camera for shooting a moving image are not limited. A camera attached to a mobile phone or the like may also be used.

  The image capturing device 104 receives two types of images with Exif information, a reference time image file 102, and a registered image file 103 from the camera 101, and transmits them to the image management device 106 via the network 105.

  The image management apparatus 106 compares the reference time taken in the transmitted reference time image file 102 with the “shooting date / time” of the Exif information recorded in the reference time image file 102, thereby causing the camera 101. The registered image file 103 can be changed to the correct shooting date and time.

  When the viewer 107 requests the image management device 106 to browse the image by operating the image browsing device 108, the image management device 106 responds with a date-corrected image file 109 via the network 105. As received.

  Note that the camera 101, the image capturing device 104, and the image browsing device 108 may be configured to also perform processing using the same hardware.

  FIG. 2 is a block diagram showing a hardware configuration applicable to the image management apparatus of the present invention.

  In FIG. 2, reference numeral 201 denotes a CPU that comprehensively controls each device and controller connected to the system bus 204. In addition, the ROM 202 or the external memory 211 is configured to realize a BIOS (Basic Input / Output System) that is a control program of the CPU 201, an operating system program (hereinafter referred to as OS), and a function executed by each server or each image management apparatus. Various programs and the like which will be described later are stored.

  A RAM 203 functions as a main memory, work area, and the like for the CPU 201. The CPU 201 implements various operations by loading a program or the like necessary for execution of processing from the ROM 202 or the external memory 211 into the RAM 203 and executing the loaded program.

  An input controller 205 controls input from a keyboard (KB) 209 or a pointing device such as a mouse (not shown). A video controller 206 controls display on a display device such as a CRT display (CRT) 210. In FIG. 2, although described as CRT 210, the display device is not limited to the CRT, but may be another display device such as a liquid crystal display. These are used by the administrator as needed.

  A memory controller 207 is an external storage device (hard disk (HD)), a flexible disk (FD), or an image management device MCIA that stores a boot program, various applications, font data, user files, editing files, various data, and the like. Controls access to an external memory 211 such as a CompactFlash (registered trademark) memory connected to the card slot via an adapter.

  A communication I / F controller 208 connects and communicates with an external device via a network (for example, the LAN 400 shown in FIG. 1), and executes communication control processing in the network. For example, communication using TCP / IP is possible.

  Note that the CPU 201 enables display on the CRT 210 by executing outline font rasterization processing on a display information area in the RAM 203, for example. In addition, the CPU 201 enables a user instruction with a mouse cursor (not shown) on the CRT 210.

Various programs to be described later for realizing the present invention are recorded in the external memory 211 and executed by the CPU 201 by being loaded into the RAM 203 as necessary. Furthermore, definition files and various information tables used when executing the program are also stored in the external memory 211, and a detailed description thereof will be described later.
FIG. 3 is a functional block diagram of the image management system of the present invention.

  It is described that the image capture device 104 has 301 to 304 and the image management device 106 has 311 to 318. However, the image management system is the same regardless of which device has which function. The effect can be obtained.

  The image capture device 104 includes a reference time display unit 301, a reference time image capture unit 302, a registered image capture unit 303, and an image transmission unit 304.

  The image management apparatus 106 includes an image reception unit 311, a registered image acquisition unit 312, a reference time display control unit 313, a reference time image acquisition unit 314, a reference time image shooting time acquisition unit 315, a reference time extraction unit 316, and a difference calculation unit 317. And an image storage management unit 318.

  The reference time display unit 301 of the image capturing device 104 displays a reference time that the user takes as a reference time image.

  The reference time image capturing unit 302 registers the captured reference time image. The registered image capturing unit 303 captures a registered image that is an image that the user wants to register in the image management apparatus.

  The image transmission unit 304 performs processing for transmitting the reference time image and the registered image to the image management apparatus.

  The image receiving unit 311 of the image management device 106 receives the reference time image and the registered image transmitted from the image capturing device 104. The image acquired here is a management target of the image management system.

  The registered image acquisition unit 312 acquires a registered image from the image received by the image receiving unit 311. The reference time image acquisition unit 313 acquires a reference time image from the image received by the image reception unit 311.

  The reference time display control unit 314 performs display control of the reference time on the reference time display unit 301. The reference time image shooting time acquisition unit 315 acquires the shooting time that is the shooting date and time given to the reference time image from the Exif information of the received reference image (reference image shooting date acquisition means).

  The reference time extraction unit 316 performs a process of extracting the time displayed in the captured image by performing OCR processing on the received reference time image.

  The difference calculation unit 317 extracts the shooting date and time of the reference image added to the reference image acquired by the reference time image shooting time acquisition unit 315 and the time screen shot by the reference time image extracted by the reference time extraction unit 316. The difference is calculated from the time.

  The image management system has the functions of the image capture device 104 and the image management device 106, and each function may be divided into a plurality of devices. For example, the image management device 106 You may make it operate | move so that it may have the function of.

  FIG. 4 is a diagram showing an example of an image file upload screen in the image management system of the present invention.

  The upload screen 400 is a screen for uploading a registered image so as to register an image in an album given “Winter BBQ” as an album name, for example. This is a screen displayed (activated) by selecting a predetermined menu (not shown).

In the reference time image 401, an image obtained by capturing an image serving as the reference time is uploaded. The reference image 405 is a reference time for which display control is performed by the image management system. A Japanese standard time such as JST may be displayed, or a time of a foreign country that the administrator wants to use as a reference may be displayed.
For example, in the case of a standard item, a standard time is obtained by connecting to a predetermined standard time server by a standard time acquisition unit (not shown). Standards can be freely set for both Japanese and foreign.

  In this embodiment, “December 30, 2013 1: 0: 0” is displayed. As annotated, “The reference time is displayed. Please shoot and register as a reference time image”, the user shoots this reference time 405 and registers it in the reference time image 401. It has become.

  Also, in the photo (registered image) 403 to be uploaded, the registered image that the user wants to register in the album is uploaded.

  The reference time image 401 and the registered image 403 can be selected by pressing a reference button 402.

  After each image is selected, when the determination button 404 is pressed, the image is registered in the image management apparatus 106. Further, when the return button is pressed, the image is canceled without being registered and the original screen is restored.

  FIG. 5 is a diagram showing an example of the date / time information image of the uploaded image file in the image management system of the present invention.

  It is an image of an image that is registered when a determination button 404 is pressed from the upload screen 400 of FIG.

  The image name 501, the date and time 502 of the reference image, and the date and time 505 of the registered image are acquired from the upload screen 400. The OCR result 503, the difference 504, and the updated date / time 506 of the reference image are obtained as a result of processing by the image management server 106 based on the received image information.

  An image name 501 is a file name of an image registered by the registered image 403 on the upload screen 400 and acquired by the registered image acquisition unit 312.

  The date and time 502 of the reference image is date and time information of the image given to the EXIF information of the image file registered as the reference time image 401. Similarly, the date / time 505 of the registered image is date / time information given to the image file registered in the registered image 403.

  The reference image OCR result 503 is a reference time obtained by analyzing the reference time image 401 by the reference item extraction unit 316 using OCR or the like.

  A difference 504 is a difference between the date and time 502 of the reference image and the OCR result 503 of the reference image, which is obtained by the difference calculation unit 317. For example, in the case of image 1, it indicates that the date and time (date and time of the reference image) given by the camera device is “+1 day”, that is, one day ahead of the reference time (reference image OCR result).

  The date and time 506 after update indicates the date and time after the date and time 505 of the registered image is updated using the difference 504. For example, since the difference is +1 day for image 1, “2012/1/1” which is the date and time of the registered image is delayed by one day and updated to “2011/12/31”. In the figure, image 1 and image 2 indicate that the same reference image is used.

  Similarly, in the case of the image 3, since the difference 504 is −1 day, “2012/1/1” that is the date and time of the registered image is updated to “2012/1/2”.

  FIG. 6 is a flowchart showing an example of the overall processing flow in the image management system of the present invention.

  The process starts from an operation in which the user transmits an image file from the image capture device 104 using the upload screen 400 displayed on the image management device 106.

  In step S601, the image file transmitted (uploaded) by the user is received. In step S602, it is determined whether the reception process in step S601 has been performed correctly.

  Image data is transmitted from the image capture device 104 to the image management device 106 via the network 105. At this time, a failure in data communication or a problem in the image management device 106 (device stoppage, network disconnection). If there is, the process is immediately terminated.

  In step S603, the image file received in step S601 is stored in a temporary storage folder. In step S604, it is determined whether the saving process to the temporary saving folder in step S603 has been performed correctly.

  When the image file is stored in the image management apparatus 106, if there is a problem in the storage area (there is no storage destination location, the capacity is insufficient), the processing is immediately terminated.

  In step S605, an existence check is performed to determine whether or not the reference time image file 102 exists in the image file temporarily stored in step S603.

  In step S606, it is determined in step S605 the result of checking whether the reference time image is present. If the reference time image file 102 does not exist, the process ends immediately.

  In step S607, the reference time image file 102 temporarily stored in step S603 is subjected to OCR processing, and the reference time recorded in the captured image is acquired. This corresponds to the OCR result 503 of the reference image in FIG.

In step S608, it is determined whether or not the reference time has been acquired in step S607.
If the reference time cannot be acquired, the process is immediately terminated.

  In step S609, the “shooting date / time” of the Exif information recorded in the reference time image file 102 temporarily stored in step S603 is acquired. This corresponds to the date and time 502 of the reference image in FIG.

  In step S610, it is determined whether or not the “shooting date” of the Exif information has been acquired in step S609. If the “shooting date / time” of the Exif information cannot be acquired, the processing is immediately terminated.

  In step S611, the reference time acquired in step S607 and the “shooting date / time” of the Exif information acquired in step 609 are compared, and the difference in date / time is calculated. This corresponds to the difference 504 in FIG.

  The difference is calculated by “reference time acquired in step S607” − “photographing date / time” of the Exif information acquired in step 609.

  In step S612, the shooting date / time data of the image file on the image management apparatus is updated based on the acquired difference value. Details of the date and time update process will be described with reference to FIG.

  FIG. 7 is a flowchart showing an example of date and time update processing in the image management system of the present invention.

  In the process of updating the date and time of the target image file, first, an image list creation process is performed in step S701, and then an image shooting date and time update process is performed in step S702.

  The image list creation process will be described with reference to FIG.

  FIG. 8 is a flowchart showing an example of image list creation processing in the image management system of the present invention.

  In step S801, all image files in the temporary storage folder are searched. More specifically, the image file included in the image management apparatus 106 is searched from the designated drive, and the file determination of the image file is performed by an extension (for example, jpg or jpeg). When folders are hierarchical, subfolders are also targeted.

  In step S802, it is determined from the retrieved image file whether the “shooting date update flag” is ON. When the flag is ON, the shooting date / time is updated “NO”, and when the flag is not ON, the shooting date / time is determined as “NO”.

  In this step, the “shooting date update flag” data is acquired from the Exif data of the image file searched in S801. If the “shooting date update flag” cannot be acquired, it is handled as the same value as the shooting date update flag OFF. Exif data will be described with reference to FIG.

  FIG. 11 is a diagram showing an example of Exif data in the image management system of the present invention.

  FIG. 11 shows a state where data used in this system is stored as part of the Exif data 1100 in a JPEG image file.

  Exif is an abbreviation for Exchangeable image file format and is an image file format including metadata for photographs. Exif data is stored as “Exif IFD (Exif data)” 1102 in “APP1” 1101 included in the header portion of the JPEG image data, and data taken by the camera is stored.

  In the image management system of the present embodiment, the “shooting date / time” 1103 in the “Exif IFD” 1102 is referred to as the shooting date / time of the image file, and the date / time difference obtained from the reference time image file 102 is reflected in the “shooting date / time” 1103. To do.

  Specifically, if the difference date is plus one day and the “shooting date” 1103 is 0:00:00 on January 1, 2012, 2011 is the date obtained by subtracting one day from the “shooting date” 1103. If December 31 00:00:00, if it is minus one, the date is added from the "shooting date" 1103 to the date 1 January 2012, 00: 00: 00: 00.

  In addition, general shooting data that can be saved as Exif data is determined by the format, but “MakerNote” 1104 exists as an area in which the camera manufacturer can store unique data. The shooting date / time change management system of this embodiment uses a “shooting date / time update flag” 1106 stored in the “MakerNote” 1104.

  Also, in the shooting date / time change management system of this embodiment, when the “shooting date / time” 1103 is updated, the “shooting date / time update flag” stored in the “MakerNote” 1104 not to update the “shooting date / time” 1103 again. 1106 is used. The “shooting date / time update flag” 1106 is OFF as an initial value, but when the “shooting date / time” 1103 is updated, it is updated to ON.

  When the “shooting date / time update flag” 1106 is turned on when the “shooting date / time” 1103 of the image file is updated again in the shooting date / time change management system of this embodiment, the “shooting date / time” 1103 is already set. It can be determined that it has been updated, and renewal can be prevented. Returning to the description of FIG.

  In step S803, it is confirmed that the “photographing date / time” of the searched image file exists.

If there is no “shooting date”, the process ends. If “shooting date” exists, the shooting date is rewritten. Therefore, if “shooting date” exists, the process proceeds to step S804.

  In step S804, the searched image file is added to the image list. The image list will be described with reference to FIG.

  FIG. 10 is a diagram showing an example of the data structure of the image list in the image management system of the present invention.

  The image list 1001 described here refers to data holding an array of a shooting date and time 1002, an image file path 1003, and an update flag 1004 as image date and time information.

  The image list 1001 has an arrangement of image date and time information (1002 to 1003) and the number of image files 1005.

  The image date / time change information exists for the number of image files satisfying the conditions in steps S802 to S805 in FIG. This number is stored in the image data number 1005.

  The shooting date / time 1002 stores the shooting date / time acquired in step S804. This corresponds to the date and time 505 of the registered image in FIG. The image file path 1003 stores the file path of the image file searched in step S801. This corresponds to the file path in which the image file with the image name 501 in FIG. 5 is stored.

  The update flag 1004 stores the “shooting date update flag” acquired from step S802.

  The number of image files 1005 includes the number of image date / time change information, that is, the number of image files satisfying the conditions in steps S802 to S803. This value is used in the number of loop processes in FIG.

  FIG. 9 is a flowchart showing an example of image photographing date update processing in the image management system of the present invention.

  With reference to the image list created by the image list creation process of FIG. 8, the next process is repeated for the number of image files.

  In step S901, the file path information storing the image file is acquired from the image file path 1003 included in the image date / time change information of the image list.

  In step S902, an image file is opened by file open processing from the information acquired in step S901.

  In step S903, the correct shooting date and time is calculated from the shooting date and time (1002 in FIG. 10) and the difference date and time (between the camera body and the standard time) acquired in step S611 in FIG.

  In step S904, it is determined whether there is a difference to be corrected. If there is a difference, the time difference is corrected with respect to the shooting date / time region (1103 in FIG. 11) of the image file opened. Record the shooting date and time (shooting date correction means).

  In step S905, the image data update flag is rewritten to ON in the MakerNote area described in the Exif IFD data structure in FIG.

  Thereby, the image file whose “shooting date / time” is changed can be prevented from being changed again in this process.

  In step S906, the image file is closed by the file close process with respect to the image file path.

  FIG. 12 is a diagram showing an example of an image upload screen warning screen in the image management apparatus of the present invention.

  After the registered image is uploaded on the image upload screen in FIG. 5, this is a confirmation screen that is displayed when the difference time is acquired in step S <b> 903 in FIG. 9, that is, before the shooting date and time of the registered image is changed. .

  The confirmation screen display control means (confirmation screen display means) for controlling the display of the confirmation screen may be displayed on the image upload screen, or displayed once the processing in step S903 is executed after the image is uploaded. You may be made to do.

  The confirmation screen 1201 indicates that there is a possibility that the time given to the image 1, which is the uploaded registered image, is incorrect as the message 1202. At the same time, it asks whether or not to change to the correct date and time obtained by the difference 504 and register it in the image management server. Here, both the shooting date and time given to the registered image and the date and time when the difference is reflected can be displayed in an identifiable manner.

When the user presses the Yes button 1203, the time is changed to the correct time (2011/12/31), and when the No button 1204 is pressed, it is registered as 2012/1/1 without change. Is done.
When the return button 1205 is pressed, nothing is registered and the process ends.

  Although one embodiment has been described above, the present invention can take an embodiment as, for example, a system, apparatus, method, program, or recording medium, and specifically includes a plurality of devices. The present invention may be applied to a system including a single device.

  The program according to the present invention is a program that can be executed by a computer according to the processing method of the flowchart shown in the present invention. The storage medium according to the present invention stores a program that can be executed by a computer. The program in the present invention may be a program for each processing method of each device.

  As described above, a recording medium that records a program that implements the functions of the above-described embodiments is supplied to a system or apparatus, and a computer (or CPU or MPU) of the system or apparatus stores the program stored in the recording medium. It goes without saying that the object of the present invention can also be achieved by executing the reading.

  In this case, the program itself read from the recording medium realizes the novel function of the present invention, and the recording medium storing the program constitutes the present invention.

  As a recording medium for supplying the program, for example, a flexible disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD-R, DVD-ROM, magnetic tape, nonvolatile memory card, ROM, EEPROM, silicon A disk, solid state drive, or the like can be used.

  Further, by executing the program read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) operating on the computer based on an instruction of the program is actually It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the processing and the processing is included.

  Furthermore, after the program read from the recording medium is written to the memory provided in the function expansion board inserted into the computer or the function expansion unit connected to the computer, the function expansion board is based on the instructions of the program code. It goes without saying that the case where the CPU or the like provided in the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

  Further, the present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. Needless to say, the present invention can be applied to a case where the present invention is achieved by supplying a program to a system or apparatus. In this case, by reading a recording medium storing a program for achieving the present invention into the system or apparatus, the system or apparatus can enjoy the effects of the present invention.

  Furthermore, by downloading and reading a program for achieving the present invention from a server, database, etc. on a network using a communication program, the system or apparatus can enjoy the effects of the present invention.

  In addition, all the structures which combined each embodiment mentioned above and its modification are also included in this invention.

100 Image Management System 101 Camera 102 Reference Time Image File 103 Registered Image File 104 Image Capture Device 105 Network 106 Image Management Device (Web Site (Service) such as SNS)
107 viewer 108 image browsing device 109 date corrected image file

Claims (6)

An image management system that can be connected to a camera device that can add a shooting date and time to a shot image,
Registered image acquisition means for acquiring a registered image to be managed from the camera device;
A reference time display control means that is a reference time used for correcting the shooting date and time;
Reference time image acquisition means for acquiring a reference time image obtained by photographing the reference time displayed by the reference time display control;
Reference image shooting date and time acquisition means for acquiring a shooting date and time given to the reference time image;
Reference time extraction means for extracting the displayed reference time from the reference time image;
A difference calculation unit that calculates a difference between the shooting date and time of the reference time image acquired by the reference image shooting date and time acquisition unit and the displayed reference time acquired by the reference time image acquisition unit;
A shooting date and time correcting means for correcting the shooting date and time given to the registered image acquired by the registered image acquiring means according to the difference calculated by the difference calculating means;
An image management system comprising:   When the shooting date and time given to the registered image is corrected by the shooting date and time correcting means, both the date and time given to the registered image and the date and time reflecting the difference calculated by the difference calculating means are displayed so as to be identifiable. 2. The image management system according to claim 1, further comprising confirmation screen display means for displaying a confirmation screen to be displayed. The reference time is a standard time,
It further has a standard time acquisition means for acquiring a standard time,
The image management system according to claim 1, wherein the reference time display control unit controls display of the standard time acquired by the standard time acquisition unit. An image management device that can be connected to a camera device that can add a shooting date and time to a captured image,
Registered image acquisition means for acquiring a registered image to be managed from the camera device;
A reference time display control means that is a reference time used for correcting the shooting date and time;
Reference time image acquisition means for acquiring a reference time image obtained by photographing the reference time displayed by the reference time display control;
Reference image shooting date and time acquisition means for acquiring a shooting date and time given to the reference time image;
Reference time extraction means for extracting the displayed reference time from the reference time image;
A difference calculation unit that calculates a difference between the shooting date and time of the reference time image acquired by the reference image shooting date and time acquisition unit and the displayed reference time acquired by the reference time image acquisition unit;
A shooting date and time correcting means for correcting the shooting date and time given to the registered image acquired by the registered image acquiring means according to the difference calculated by the difference calculating means;
An image management apparatus comprising: A control method of an image management system connectable with a camera device capable of giving a shooting date and time to a captured image,
A registered image acquisition step of acquiring a registered image to be managed from the camera device;
A reference time display control step which is a reference time used for correcting the shooting date and time;
A reference time image acquisition step of acquiring a reference time image obtained by photographing the reference time displayed by the reference time display control;
A reference image shooting date and time acquisition step of acquiring a shooting date and time given to the reference time image;
A reference time extraction step of extracting the displayed reference time from the reference time image;
A difference calculating step of calculating a difference between the shooting date and time of the reference time image acquired in the reference image shooting date and time acquisition step and the displayed reference time acquired in the reference time image acquisition step;
A shooting date and time correction step of correcting the shooting date and time given to the registered image acquired by the registered image acquisition step according to the difference calculated by the difference calculation step;
A control method for an image management system, comprising: There is a program that can be read by an image management system that can be connected to a camera device that can add a shooting date and time to a shot image,
The image management system;
Registered image acquisition means for acquiring a registered image to be managed from the camera device;
A reference time display control means that is a reference time used for correcting the shooting date and time;
Reference time image acquisition means for acquiring a reference time image obtained by photographing the reference time displayed by the reference time display control;
Reference image shooting date and time acquisition means for acquiring a shooting date and time given to the reference time image;
Reference time extraction means for extracting the displayed reference time from the reference time image;
A difference calculation unit that calculates a difference between the shooting date and time of the reference time image acquired by the reference image shooting date and time acquisition unit and the displayed reference time acquired by the reference time image acquisition unit;
A shooting date and time correcting means for correcting the shooting date and time given to the registered image acquired by the registered image acquiring means according to the difference calculated by the difference calculating means;
A program for causing an image management system to function.

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