JP4742061B2 - Photographed image display device, photographed image display program, and recording medium recorded with photographed image display program - Google Patents

Description

  The present invention relates to a captured image display device for displaying a plurality of images captured by an imaging device such as a digital camera, a program for displaying captured images, and a recording medium on which the captured image display program is recorded.

  For example, in an imaging device such as a digital camera, a large number of digital data such as still images and moving images obtained as a result of photographing can be stored on a storage device such as a memory card built in the digital data. Recently, a digital camera equipped with a wireless communication function such as infrared communication (IrDA) has been developed. A digital camera equipped with a wireless communication function can communicate with various electronic devices such as other digital cameras and mobile phone terminals and exchange data such as images with each other.

  Therefore, for example, you can transfer an image taken by a mobile phone terminal to your digital camera using wireless communication, or you can get an image taken by someone else's digital camera and use your wireless communication to your digital camera. Can also be transferred. Therefore, a large amount of various data, mainly still images, is stored on a storage device (such as a memory card) in one digital camera.

  When a digital camera user wants to check or view the contents of various images stored on a storage device, he or she usually uses the playback function provided in the digital camera itself. Can be played. Specifically, a large amount of data stored on the storage device is sequentially selected in image units, for example, in order of shooting date and time, and the selected image data is displayed on a liquid crystal display screen mounted on the digital camera. Are sequentially displayed as two-dimensional images (still images).

  However, in the case where various image data acquired from other electronic devices by wireless communication are stored on the storage device in addition to the image data captured by the user's own digital camera, the viewer expects There is a high possibility that images are reproduced in an order different from the order in which the images are taken (for example, in order of shooting date). For example, there may be a case where an image taken by another person is displayed so as to interrupt while browsing images taken by himself / herself in order. On the other hand, in the middle of sequentially browsing images taken by other people, it may be displayed so that the image taken by itself is interrupted.

  Therefore, for example, Patent Document 1 proposes to manage the identification information for managing each of a plurality of images by including information on an email address representing a data transmission source, that is, transmission source information. . In addition, when reproducing the stored image data, it has been proposed to select and select the data to be reproduced for each transmission source.

Therefore, when playing back the stored image data, the data to be played back can be limited to only images taken by the user or to images transmitted from a specific transmission source. You can prevent images taken by other people from interrupting while you are browsing the images taken in order, or you can interrupt the images you shot while browsing images taken by others in order. Can be prevented.
JP 2005-295374 A

  By the way, data such as images handled by an electronic device such as a digital camera is managed as an independent data file for each set of data in a certain unit. For example, in the case of a still image, an independent data file is created for each still image. Each data file includes file name and time stamp information. The time stamp is generally information indicating the date and time when the file was created.

  As described above, when various images stored in the storage device in the digital camera are sequentially reproduced, generally, the contents of the time stamp added to the data file of each image are displayed. It can be handled in the same way as the shooting date and time. Therefore, when various images are reproduced, the order of images to be reproduced is conventionally determined based on the contents of the time stamp of each data file.

  However, as for the data file of image data transferred from an external electronic device by wireless communication or the like, information on the date and time when it was received is often recorded as a time stamp. For this reason, for image data transferred from the outside, the shooting date and time of the image do not correspond to the contents of the time stamp of the data file. As a result, when determining the order of images to be played back based on the contents of the time stamp of each data file, the image data transferred from an external electronic device is ordered in the shooting date and time desired by the user. Images are played back in a different order.

  The present invention provides a photographic image display device and a photographic image display device capable of reproducing a large number of image data in an appropriate order even when a file of image data transferred from an external electronic device by wireless communication or the like is included. It is an object to provide a recording medium on which an image display program and a photographed image display program are recorded.

The above object of the present invention is achieved by the following configuration.
(1) Captured image display having a function of reading data from one or more storage devices each holding at least a plurality of data files including images and sequentially reproducing the plurality of images on a predetermined display screen A device,
Transfer data identification means for identifying whether or not each image data file is data transferred by communication,
For data files other than data transferred by communication, a time stamp indicating the creation time of the data file is acquired as shooting date / time information, and for data files composed of data transferred by communication, the data file Shooting date and time information acquisition means for acquiring shooting date and time information by analyzing the internal data of
Reproduction order determining means for determining the image reproduction order of a plurality of data files based on the photographing date information acquired by the photographing date information acquisition means;
A photographed image display device characterized by comprising:

  According to this photographed image display device, for data files composed of data transferred by communication, photographing date / time information acquisition means obtains photographing date / time information by analyzing the internal data of each data file. Even if the time stamp of the data file does not match the shooting date and time, the correct shooting date and time information can be acquired. Therefore, even if an image is transferred from an external electronic device by communication, it is possible to reproduce the image in the proper order, that is, in the order desired by the user, such as the order of shooting date and time. For data files other than data transferred by communication, the time stamp added to the data file is acquired as information on the shooting date and time, so there is no need to analyze the internal data of each data file. Processing can be completed.

  For example, in most digital cameras existing at present, an image or the like is recorded in a data file configured in accordance with a specification called “Exif format”. This data file is the same as the “JPEG format” data file well known as an image file, but information on various shooting conditions including the shooting date and time is embedded in the data file. Therefore, by analyzing the inside of the data file, it is possible to acquire information such as the correct shooting date and time that is different from the time stamp added to the file. Of course, the data file is not limited to “Exif format”.

(2) Photographed image display having a function of reading data from one or more storage devices each holding at least a plurality of data files including images and sequentially reproducing the plurality of images on a predetermined display screen A device,
Transfer data identification means for identifying whether or not each image data file is data transferred by communication,
Reference is made to a plurality of data files held on the storage device according to a predetermined extraction condition, and information indicating the reproduction order of images is recorded for the first set of data files other than the data transferred by communication. First playlist creation means for creating a first playlist that includes:
Reference is made to a plurality of data files held on the storage device in accordance with a predetermined extraction condition, and information representing the image reproduction order is recorded for a second set of data files composed of data transferred by communication. Second playlist creation means for creating a second playlist that has been played,
A photographed image display device comprising: a playlist reproduction order determining unit that refers to the first playlist and the second playlist in a predetermined order and determines an image reproduction order according to the contents of both. .

According to this photographed image display device, the playlist reproduction order determining means refers to the first playlist and the second playlist in a predetermined order, and determines the image reproduction order according to the contents of both, so that an appropriate Images can be reproduced in order according to the order, that is, the order desired by the user. For example, according to the contents of the first playlist, images of a first set of data files composed of data other than the data transferred by communication are reproduced in order, and thereafter, according to the contents of the second playlist, by communication. It is also possible to sequentially reproduce the images of the second set of data files composed of the transferred data. For this reason, it is possible to prevent the images of the second set of data files from being interrupted while the images are being reproduced according to the contents of the first playlist, and the second while the images are being reproduced according to the contents of the second playlist. It is possible to prevent an image of a set of data files from being interrupted.
(3) The captured image display device according to (2),
At least one of the first playlist creation unit and the second playlist creation unit may include, as the predetermined extraction condition, all images, still images, moving images, shooting date / time, shooting date, image storage folder, A photographed image display device using information representing at least one of a recording medium and a model of the image pickup device.

  According to this photographed image display device, the first playlist and / or the second playlist can be created according to the condition that the user desires as the playback order during continuous playback of a plurality of images.

(4) The captured image display device according to (2),
The playlist reproduction order determination means includes a first mode in which a plurality of images are sequentially reproduced according to the contents of the first playlist, and then a plurality of images are sequentially reproduced according to the contents of the second playlist; A captured image comprising at least one of a second mode in which a plurality of images are sequentially reproduced according to the contents of the first playlist and then a plurality of images are sequentially reproduced according to the contents of the first playlist. Display device.

  According to the photographed image display device, a plurality of images are sequentially reproduced according to the contents of the first playlist, and then a plurality of images are reproduced sequentially according to the contents of the second playlist. After sequentially reproducing a plurality of images according to the contents of the playlist, the plurality of images can be sequentially reproduced according to the contents of the first playlist.

(5) A predetermined computer for reading data from one or more storage devices each holding at least a plurality of data files including images and sequentially reproducing the plurality of images on a predetermined display screen An executable captured image display program,
A transfer data identification step for identifying whether or not each image data file is data transferred by communication; and
For data files other than data transferred by communication, a time stamp indicating the creation time of the data file is acquired as shooting date / time information, and for data files composed of data transferred by communication, the data file Shooting date and time information acquisition step of acquiring shooting date and time information by analyzing the internal data of
A photographic image display program, comprising: a reproduction order determination step for determining an image reproduction order of a plurality of data files based on information on a photographing date and time acquired in the photographing date and time information acquisition step.

  According to this captured image display program, for a data file composed of data transferred by communication, information on the shooting date and time is obtained by analyzing the internal data of each data file in the shooting date and time information acquisition step. Even if the time stamp of the data file does not match the shooting date and time, the correct shooting date and time information can be acquired. Therefore, even if an image is transferred from an external electronic device by communication, it is possible to reproduce the image in the proper order, that is, in the order desired by the user, such as the order of shooting date and time. For data files other than data transferred by communication, the time stamp added to the data file is acquired as information on the shooting date and time, so there is no need to analyze the internal data of each data file. Processing can be completed.

(6) A predetermined computer for reading data from one or a plurality of storage devices each holding at least a plurality of data files including images and sequentially reproducing the plurality of images on a predetermined display screen An executable captured image display program,
A transfer data identification step for identifying whether or not each image data file is data transferred by communication; and
Reference is made to a plurality of data files held on the storage device according to a predetermined extraction condition, and information indicating the reproduction order of images is recorded for the first set of data files other than the data transferred by communication. A first playlist creating step of creating a first playlist that is,
Reference is made to a plurality of data files held on the storage device in accordance with a predetermined extraction condition, and information representing the image reproduction order is recorded for a second set of data files composed of data transferred by communication. A second playlist creating step for creating the second playlist that has been performed;
A photographed image display program comprising: a playlist reproduction order determination step that refers to the first playlist and the second playlist in a predetermined order and determines an image reproduction order according to the contents of both. .

  According to this photographed image display program, the first playlist and the second playlist are referred to in a predetermined order in the playlist playback order determination step, and the image playback order is determined according to the contents of both, so that an appropriate Images can be reproduced in order according to the order, that is, the order desired by the user. For example, according to the contents of the first playlist, images of a first set of data files composed of data other than the data transferred by communication are reproduced in order, and thereafter, according to the contents of the second playlist, by communication. It is also possible to sequentially reproduce the images of the second set of data files composed of the transferred data. For this reason, it is possible to prevent the images of the second set of data files from being interrupted while the images are being reproduced according to the contents of the first playlist, and the second while the images are being reproduced according to the contents of the second playlist. It is possible to prevent an image of a set of data files from being interrupted.

(7) The captured image display program according to (6),
At least one of the first playlist creation step and the second playlist creation step includes, as the predetermined extraction condition, all images, still images, moving images, shooting date / time, shooting date, image storage destination folder, image A photographic image display program characterized by using information representing at least one of a recording medium and a model of an imaging apparatus.

  According to the photographed image display program, the first playlist and / or the second playlist can be created according to the condition that the user desires as the playback order during continuous playback of a plurality of images.

(8) The captured image display program according to (6),
The playlist reproduction order determination step includes a first mode in which a plurality of images are sequentially reproduced according to the contents of the first playlist, and then a plurality of images are sequentially reproduced according to the contents of the second playlist; And a second mode of sequentially reproducing a plurality of images according to the contents of the first playlist after sequentially reproducing the plurality of images according to the contents of the second playlist. Captured image display program.

  According to this photographed image display program, a plurality of images are sequentially reproduced according to the contents of the first playlist, and then a plurality of images are reproduced sequentially according to the contents of the second playlist. After sequentially reproducing a plurality of images according to the contents of the playlist, the plurality of images can be sequentially reproduced according to the contents of the first playlist.

(9) A predetermined computer for reading data from one or a plurality of storage devices each holding at least a plurality of data files including images and sequentially reproducing the plurality of images on a predetermined display screen A recording medium storing a readable photographed image display program, wherein the photographed image display program includes:
A transfer data identification step for identifying whether or not each image data file is data transferred by communication; and
For data files other than data transferred by communication, a time stamp indicating the creation time of the data file is acquired as shooting date / time information, and for data files composed of data transferred by communication, the data file Shooting date and time information acquisition step of acquiring shooting date and time information by analyzing the internal data of
A recording medium on which a photographic image display program is recorded, comprising: a reproduction order determination step for determining an image reproduction order of a plurality of data files based on the information on the photographing date acquired in the photographing date information acquisition step .

  According to the recording medium on which the photographed image display program is recorded, the information on the photographing date and time is obtained by analyzing the internal data of each data file in the photographing date and time information acquisition step for the data file composed of the data transferred by communication. Therefore, even if the time stamp of the data file does not match the shooting date / time, the correct shooting date / time information can be acquired. Therefore, even if an image is transferred from an external electronic device by communication, it is possible to reproduce the image in the proper order, that is, in the order desired by the user, such as the order of shooting date and time. For data files other than data transferred by communication, the time stamp added to the data file is acquired as information on the shooting date and time, so there is no need to analyze the internal data of each data file. Processing can be completed.

(10) A predetermined computer for reading data from one or more storage devices each holding at least a plurality of data files including images and sequentially reproducing the plurality of images on a predetermined display screen A recording medium storing a readable photographed image display program, wherein the photographed image display program includes:
A transfer data identification step for identifying whether or not each image data file is data transferred by communication; and
Reference is made to a plurality of data files held on the storage device according to a predetermined extraction condition, and information indicating the reproduction order of images is recorded for the first set of data files other than the data transferred by communication. A first playlist creating step of creating a first playlist that is,
Reference is made to a plurality of data files held on the storage device in accordance with a predetermined extraction condition, and information representing the image reproduction order is recorded for a second set of data files composed of data transferred by communication. A second playlist creating step for creating the second playlist that has been performed;
A photographed image display program comprising: a playlist reproduction order determination step that refers to the first playlist and the second playlist in a predetermined order and determines an image reproduction order according to the contents of both. A recording medium on which is recorded.

  According to the recording medium on which the photographed image display program is recorded, the first playlist and the second playlist are referred to in a predetermined order in the playlist playback order determination step, and the image playback order is determined according to the contents of both. Therefore, the images can be reproduced in order according to an appropriate order, that is, an order desired by the user. For example, according to the contents of the first playlist, images of a first set of data files composed of data other than the data transferred by communication are reproduced in order, and thereafter, according to the contents of the second playlist, by communication. It is also possible to sequentially reproduce the images of the second set of data files composed of the transferred data. For this reason, it is possible to prevent the images of the second set of data files from being interrupted while the images are being reproduced according to the contents of the first playlist, and the second while the images are being reproduced according to the contents of the second playlist. It is possible to prevent an image of a set of data files from being interrupted.

(11) A recording medium on which the captured image display program according to (10) is recorded,
At least one of the first playlist creation step and the second playlist creation step includes, as the predetermined extraction condition, all images, still images, moving images, shooting date / time, shooting date, image storage destination folder, image A recording medium on which a captured image display program is recorded, wherein information representing at least one of a recording medium and a model of an imaging apparatus is used.

  According to the recording medium in which the photographed image display program is recorded, the first playlist and / or the second playlist are created according to the conditions that the user desires as the playback order during the continuous playback of a plurality of images. be able to.

(12) A recording medium on which the captured image display program according to (10) is recorded,
The playlist reproduction order determination step includes a first mode in which a plurality of images are sequentially reproduced according to the contents of the first playlist, and then a plurality of images are sequentially reproduced according to the contents of the second playlist; And a second mode of sequentially reproducing a plurality of images according to the contents of the first playlist after sequentially reproducing the plurality of images according to the contents of the second playlist. A recording medium on which a captured image display program is recorded.

  According to the recording medium in which the photographed image display program is recorded, whether the plurality of images are sequentially reproduced according to the contents of the first playlist, and then the plurality of images are sequentially reproduced according to the contents of the second playlist. Alternatively, after the plurality of images are sequentially reproduced according to the contents of the second playlist, the plurality of images can be reproduced sequentially according to the contents of the first playlist.

  According to the present invention, even when a file of image data transferred from an external electronic device by wireless communication or the like is included, a large number of image data is reproduced in an appropriate order, that is, an order desired by the user. It becomes possible to do.

(First embodiment)
One specific embodiment of the captured image display device of the present invention will be described below with reference to FIGS.

  FIG. 1 is a block diagram showing a main hardware configuration of the digital camera according to the first embodiment. 2 and 3 are flowcharts showing main operations of the digital camera according to the first embodiment.

  In the first embodiment, it is assumed that the present invention is applied to a digital camera configured as shown in FIG. Of course, the present invention can be applied to apparatuses other than digital cameras as long as the apparatus has a function of sequentially reproducing a plurality of digital images (still images and moving images).

  A digital camera shown in FIG. 1 includes a focus lens 11, a zoom lens 12, an aperture shutter 13, a motor 14, a motor drive circuit 15, an image sensor 16, an A / D converter 17, an image signal processing unit 18, an integration unit 19, and a center. Control unit (CPU) 20, recording internal ROM 21, media interface 22, media control unit 23, USB connector 24, USB communication control unit 25, antenna 26, IrDA communication control unit 27, compression / decompression processing unit 28, RAM 29, control program A ROM 30, a display control unit 31, a display unit 32, and an operation unit 33 are provided.

  The focus lens 11, the zoom lens 12, and the aperture shutter 13 are physically driven by a motor. The motor 14 is driven and controlled by the central control unit 20 via the motor drive circuit 15.

  The central control unit 20 incorporates a microprocessor and implements various control operations of the camera by executing a control program stored in advance on the control program ROM 30. That is, the central control unit 20 includes the transfer data identification means, the shooting date / time information acquisition means, the playback order determination means, the first playlist creation means, the second playlist creation means, and the playlist playback order determination means as described in the claims. It has the function of.

  The image sensor 16 is a two-dimensional image sensor, and converts an image of light incident from the outside through the focus lens 11, the zoom lens 12, the aperture shutter 13, and the like into an electric signal of a two-dimensional image. The A / D converter 17 converts the analog electric signal of the two-dimensional image output from the image sensor 16 into a digital data signal in units of pixels.

  The image signal processing unit 18 performs digital signal processing such as white balance correction, sharpness correction, color tone correction, and gradation correction on the digital data output from the A / D converter 17, and the result is used as image data. Output.

  The compression / decompression processing unit 28 performs a compression process for reducing the capacity of the generated image data and a decompression process for restoring the compressed image data to the original data. Various formats of compressed image data are assumed. For example, generally well-known “JPEG” format image data is generated by the compression / decompression processing unit 28.

  The built-in recording ROM 21 is composed of a flash memory, and stores a data file of “JPEG” format image data compressed by the compression / decompression processor 28.

  A predetermined external recording medium such as an “xD media card” can be connected to the media interface 22, and a data file of image data in the “JPEG” format compressed on the external recording medium can also be stored.

  The write destination of the data file of the “JPEG” format image data compressed by the compression / decompression processing unit 28 is set in accordance with a predetermined priority condition and whether or not an external recording medium is attached, One of the recording media is selected. In the initial state, the recording internal ROM 21 is designated as a preferential writing destination.

  The control program ROM 30 holds a control program executable by the central control unit 20 in advance, but the contents of the control program ROM 30 can be rewritten, and the control program to be executed by the central control unit 20 is updated. When doing so, the contents of the control program ROM 30 are rewritten.

  The display unit 32 is a liquid crystal display capable of displaying a two-dimensional image such as a photograph, and actually displays a captured image, a menu, a warning display, and the like. The display content is controlled by the central control unit 20 via the display control unit 31. For example, when the user takes a picture, an image of the subject, a menu, and the like are displayed on the display unit 32. Therefore, the user can check the subject while viewing the display content of the display unit 32, and can view the taken image. You will check or decide the contents of the menu item.

  The operation unit 33 is provided with various elements (switches) that can be operated by the user. Specifically, a release, zoom button, mode dial for switching operation modes, a cross button, an OK button, a cancel button for selecting and executing an image and a menu, a DISP button for switching a screen display format, and the like are included. It is.

  The contents of various images existing on the captured image or on the recording internal ROM 21 or on the external recording medium can be reproduced using the display unit 32 on the digital camera. As a playback mode, a slideshow mode is provided in addition to single-frame image playback and multi-playback. In the slide show mode, a large number of images can be displayed one frame at a time at regular intervals.

  This digital camera includes a communication means for enabling data exchange with an external electronic device (another digital camera or the like). That is, since the USB connector 24 and the USB communication control unit 25 are provided as one communication means, USB communication can be performed by wired connection via the USB connector 24. Further, as another communication means, an antenna (transmitter / receiver) 26 and an IrDA (infrared communication standard) communication control unit 27 are provided, so that data can be transmitted by wireless communication with other electronic devices capable of IrDA communication. Can communicate.

  One of the menu items provided as a function of the digital camera is “IrDA communication”. Therefore, when the user selects this menu item, image data can be transmitted / received to / from other electronic devices. it can. The image data transmitted by the digital camera can be arbitrarily selected from image data held on the recording internal ROM 21 and image data held on an external recording medium connected to the media interface 22. it can.

  Also, image data received from an external electronic device by IrDA communication or USB communication is recorded on the internal recording ROM 21 or an external recording medium connected to the media interface 22 according to the priority order of the recording destination. In this example, an IrDA communication function is provided as a wireless communication means, but instead of this, other wireless communication means using radio waves, ultrasonic waves, infrared rays or the like as a carrier wave, such as “Bluetooth” or a wireless LAN, is used. It can also be assumed to be used.

  Next, main operations of the digital camera shown in FIG. 1 will be described with reference to FIGS. FIG. 2 shows an operation when the digital camera receives image data from an external electronic device by IrDA communication or USB communication. FIG. 3 shows an operation when the digital camera reproduces an image in the slide show mode. Show.

  2 and 3 is realized by the microprocessor of the central control unit 20 executing a captured image display program prepared in the control program ROM 30. The captured image display program to be executed by the microprocessor of the central control unit 20 is read from a predetermined recording medium in which it is recorded in advance, such as a memory card, a flexible disk medium, a CD-ROM, a DVD-ROM or the like. Is also possible.

  When the user operates the operation unit 33 to select “image reception menu” on the menu screen, the process proceeds to step s1 in FIG. 2 to start the function of the image reception menu. In this image reception menu, the storage destination of the received image (external recording medium connected to the recording internal ROM 21 or the media interface 22) and the reception operation can be executed.

  When execution of the receiving operation is instructed by a user operation input, the process proceeds from step s2 to step s3. In step s3, it is determined whether or not a received image folder (100_RECV folder) designated in advance as a storage destination of the received image exists. A folder represents a specific recording area and is distinguished by an assigned name.

  If the received image folder already exists, the process proceeds from step s3 to s5, and if not, the process proceeds to step s4. In step s4, the received image folder (100_RECV folder) is created on the recording destination internal ROM 21 or the external recording medium connected to the media interface 22.

  When preparation of the received image folder as the storage destination is completed, reception of image data from an external electronic device is started in step s5, and the process proceeds to next step s6. In step s6, data reception is executed, and the received data is recorded as an independent data file (in the case of a still image) for each image in the received image folder at the save destination.

  In step s7, it is checked whether or not reception of all images has been completed. If reception of all images has been completed, this processing ends. If not, processing returns to step s6 and image data reception processing continues. .

  As for the image data file generated from the data received in this way, and the image data file generated by photographing of the digital camera itself shown in FIG. Is added. However, the contents of the time stamp added to the image data file generated by the digital camera's own image capture coincide with the image date / time of the image, but the time added to the image data file generated from the received data. The content of the stamp is the data reception date and time, and does not match the image shooting date and time.

  On the other hand, both of the image data file generated from the received data and the image data file generated by photographing of the digital camera itself shown in FIG. 1 are generally “Exif format” in the case of a digital camera. It is configured according to the specifications called.

  This data file is the same as the “JPEG format” data file well known as an image file, but information on various shooting conditions including the shooting date and time is embedded in the data file. Therefore, by analyzing the inside of the data file, it is possible to acquire information such as the correct shooting date and time that is different from the time stamp added to the file.

  Next, an operation during reproduction (slide show) shown in FIG. 3 will be described. In the operation menu for the slide show function provided in the digital camera shown in FIG. 1, the type of image to be displayed (“all images”, “still image”, “movie”, “date sort”), the display time, and the effect The type of (special effect on display) can be specified. For example, when “Date sort” is specified for “Image type”, a large number of images are automatically sorted in ascending order according to the order of shooting date and time from all recorded images. Playback and display (that is, a slide show) can be performed.

  When the user operates the operation unit 33 to select a slide show menu, the process proceeds to step s11 in FIG. 3 to start the function specified in the slide show menu.

  In step s12, it is identified whether “date sort” of “image type” is designated (by user operation) in the slide show menu, and “date sort” of “image type” is designated. Advances to the next Step s13.

  In step s13, creation of a playlist is started. The playlist is information indicating the reproduction target (in this case, the image file group) and the order thereof. Generally, the location (path) and file name of each data file (in this case, the image file) is set to 1. It is a text file arranged one by one on a line.

  The central control unit 20 examines the stored contents of the recording internal ROM 21 in which the reproduction target image is stored or the external recording medium connected to the media interface 22, and performs the following steps s14 to s18 for each image data file. Execute the process.

  In step s14, it is identified whether or not the data file of the image to be processed exists in the received image folder (100_RECV folder). In the case of an image data file existing in the received image folder, the process proceeds from step s14 to s15, and in the case of another image data file, the process proceeds from step s14 to s16.

  In step s15, the internal data of the data file of the image to be processed is analyzed, and information on “shooting date / time” is acquired from the “Exif tag”. Specifically, the processing is as described below.

  JPEG files always begin with 0xFFD8 (hexadecimal notation: the same applies below) and end with 0xFFD9. Data of the format 0xFFXX (XX is arbitrary) in such a file is called a marker and is a delimiter for JPEG data. 0xFFD8 is SOI (Start of image), and 0xFFD9 is EOI (End of image). These two are markers with no attached data, but the other markers are followed by data. Among the markers used in the JPEG file, the markers of 0xFFE0 to 0xFFEF are called application markers and are defined as data areas for use in the respective application programs.

  Exif format data files also use this application marker to store various information in JPEG images. However, Exif uses APP1 (0xFFE1) marker. In the first part of the Exif format image, "SOI Marker", "APP1 Marker", "APP1 Data", and "Other Marker" areas are arranged in order.

  The "APP1 Marker" part includes "APP1 Data Size", "Exif Header", "TIFF Header", "IFD0 (main image)", "Data area of IFD0", "Exif SubIFD", "Data area of Exif SubIFD, Interoperability IFD, Data area of Interoperability IFD, Makernote IFD, Data area of Makernote IFD, IFD1 (thumbnail image), Data area of IFD1, Thumbnail image Are arranged in order.

  IFD means “Image file directory”. That is, the IFD stores image information in the same structure as a directory on a normal disk. In this IFD, “number of directory entries”, “first image information”, “second image information”, “third image information”,... Are arranged in order. In the first part of each of “first image information”, “second image information”, “third image information”,..., Tag number information indicating the type of data is arranged. .

  Actually, the IFD that first appears in the TIFF data area of the Exif format image data is IFD0 (IFD of main image), and is linked to the next IFD1 (IFD of thumbnail image), and the link ends there. However, these IFDs do not contain detailed camera data such as shooting information. In the case of Exif format, a special tag called “Exif Offset” (0x8769) exists in IFD0, and IFD format data (Exif SubIFD) is stored at the address indicated by this offset value. Detailed information is written.

  Therefore, it is possible to access data (Exif SubIFD) in the data file of the Exif format image and extract information on “shooting date / time” using a predetermined Exif tag. Actually, in the area of data (Exif SubIFD), the tag number `` 0x9003 '' represents `` DateTimeOriginal '', that is, the area holding the data of `` shooting date '', so the data (Exif The data of “shooting date” is taken out from (SubIFD). Note that “DateTimeDigitized (date and time when the image was digitized after shooting)” of the tag number “0x9004” may be used instead.

  On the other hand, in step s16 of FIG. 3, the information of “time stamp” added to each data file is acquired as information of “shooting date”. In other words, in the case of an image data file obtained by photographing of the digital camera itself, the “time stamp” indicating the file creation date and time has the same contents as the “shooting date and time”. It can be treated as “date and time”.

  In step s17, in the playlist to be created, as the information of the data file of the image to be processed, the full path (location and file name) of the data file and the information of “shooting date” acquired in step s15 or s16 Add and write.

  In step s18, it is identified whether or not the processing of all the image files to be reproduced has been completed. If completed, the process proceeds to the next step s19. If not completed, the process returns to step s14 to continue the process. .

  In step s19, the data in the playlist created in steps s13 to s18 is processed in units of rows, and the data is rearranged in the ascending order of the “shooting date / time” according to the context of the “shooting date / time” therein. (Sort) This completes the playlist.

  In step s20, a slide show is started using the playlist created in step s19. That is, in accordance with the contents of the playlist, the data files of many images to be reproduced are accessed one by one in order, and the images are sequentially displayed at a constant time period.

  In the processing shown in FIGS. 2 and 3, image data received by communication is stored in a dedicated folder, and whether each image is received data by distinguishing the folder in which each data file exists. However, it is also possible to identify by another method. For example, it is also possible to identify whether each image is received data by adding a specific mark to the data file of the received image and referring to this mark. It is also possible to create a list of received images at the time of image reception and identify whether each image is received data by using the list of received images.

  (Second Embodiment)

One specific embodiment of the captured image display device of the present invention will be described below with reference to FIGS.
4 and 5 are flowcharts showing main operations of the digital camera according to the second embodiment.

  In the second embodiment, as in the first embodiment, it is assumed that the present invention is applied to a digital camera configured as shown in FIG. Of course, the present invention can be applied to apparatuses other than digital cameras as long as the apparatus has a function of sequentially reproducing a plurality of digital images (still images and moving images).

  The difference between the second embodiment and the first embodiment is only the operation of the digital camera, that is, the control content of the central control unit 20. Therefore, the configuration of the digital camera is the same as that described in the first embodiment, and a duplicate description is omitted.

  The operation of the digital camera according to the second embodiment will be described below with reference to FIGS. FIG. 4 shows the operation when this digital camera receives image data from an external electronic device by IrDA communication or USB communication. FIG. 5 shows the operation when this digital camera reproduces an image in the slide show mode. Show.

  The operations shown in FIGS. 4 and 5 are realized when the microprocessor of the central control unit 20 executes a captured image display program prepared in the control program ROM 30. The captured image display program to be executed by the microprocessor of the central control unit 20 is read from a predetermined recording medium in which it is recorded in advance, such as a memory card, a flexible disk medium, a CD-ROM, a DVD-ROM or the like. Is also possible.

  When the user operates the operation unit 33 to select “image reception menu” on the menu screen, the process proceeds to step s31 in FIG. 4 to start the function of the image reception menu. In this image reception menu, the storage destination of the received image (external recording medium connected to the recording internal ROM 21 or the media interface 22) and the reception operation can be executed.

  When execution of the reception operation is instructed by a user operation input, the process proceeds from step s32 to step s33. In step s33, reception of image data from an external electronic device is started. In next step s34, reception of data is executed, and the received data is stored in a received image folder in a storage destination as an independent data file (for each image). Record as still images).

  When reception of one image data is completed, the process proceeds to the next step s35, and a predetermined mark is added to the received image. As a specific example, an area of “transmission / reception status” (8 bits) is provided in the “maker note” portion of the “Exif tag” in the image data file. Set the least significant bit (to 1).

  In step s36, it is checked whether or not reception of all images has been completed. If reception of all images has been completed, this processing ends. If not, processing returns to step s34 and image data reception processing continues. .

  Next, the operation during playback (slide show) shown in FIG. 5 will be described. In the operation menu for the slide show function of this digital camera, the types of images to be displayed ("All images", "Still images", "Movies", "Date sort"), display time, and effects (on the display) Type of special effects). For example, when “Date sort” is specified for “Image type”, a large number of images are automatically sorted in ascending order according to the order of shooting date and time from all recorded images. Playback and display (that is, a slide show) can be performed.

  When the user operates the operation unit 33 to select a slide show menu, the process proceeds to step s41 in FIG. 5 to start the function specified in the slide show menu.

  In step s42, it is checked whether or not the execution of the slide show is instructed by the user's input operation. If instructed, the process proceeds to the next step s43. In this example, it is assumed that “all images” is selected as the “image type”.

  In step s43, creation of a playlist is started. The playlist is information indicating the reproduction target (in this case, the image file group) and the order thereof. Generally, the location (path) and file name of each data file (in this case, the image file) is set to 1. It is a text file arranged one by one on a line. In this example, a plurality of independent playlists are created as described below.

  The central control unit 20 checks the stored contents of the recording internal ROM 21 in which the reproduction target image is stored or the external recording medium connected to the media interface 22, and performs the following steps s44 to s48 for each image data file. Execute the process.

  In step s44, it is identified whether the data file of the image to be processed is an image received from an external electronic device by communication. That is, the presence / absence of the mark added in step s35 is checked. That is, the internal data of each image data file is accessed to check whether “bit 0” of “transmission / reception status” of “maker note” of “Exif tag” is set (1/0).

  On the basis of the identification result in step s44, the process proceeds from step s45 to s46 when processing the data file of the image received from the outside, and from step s45 to s47 in the case of the other data file.

  In step s46, information on the full path (location and file name) of the data file is written and added as information on the data file of the image to be processed in the “received image playlist” that is the first playlist. .

  In step s47, information on the full path (location and file name) of the data file as information on the data file of the image to be processed in the “second playlist” (optional: other than the received image playlist). Add and write.

  In step s48, it is identified whether or not the processing of all the image files to be reproduced has been completed. If completed, the process proceeds to the next step s49, and if not completed, the process returns to step s44 to continue the process. .

  In step s49, a slide show reproduction operation is started.

  In step s50, the contents of the “second playlist” created in step s47 are referred to, and a number of images are sequentially reproduced according to the contents. That is, only images obtained by photographing with the digital camera itself are sequentially reproduced.

  In step s51, it is checked whether or not the reproduction of all images recorded in the “second playlist” has been completed. If completed, the process proceeds to the next step s52, and if not completed, the process returns to step s50. Repeat the process.

  In step s52, the contents of the “received image playlist” created in step s46 are referred to, and a number of images are sequentially reproduced according to the contents. That is, only images received from an external electronic device are reproduced sequentially.

  In step s53, it is checked whether or not the reproduction of all images recorded in the “received image playlist” has been completed. If not completed, the process returns to step s52 to repeat the process. finish.

  In other words, when this slide show is executed, only the images obtained by the digital camera itself are sequentially reproduced, and thereafter, only the images received from the external electronic device are sequentially reproduced. Become.

  Conversely, even if the operation is changed so that only images received from an external electronic device are sequentially played back, and then only the images obtained by the digital camera itself are played back sequentially. good.

  In the processing shown in FIGS. 4 and 5, a playlist is created by identifying whether or not the data is received using a mark in the image data file when the slide show is executed. A received image list may be created, and a playlist may be created using the received image list.

  In addition, during the period from the end of playback of one playlist to the start of playback of another playlist, an image of only a message indicating the type of image to be played back (received image or other) is displayed. Or, by adding an icon to the top image of each playlist or devising the display, the distinction between the received image and other images can be made easier to understand.

  Further, the processes shown in FIGS. 2 and 3 may be added to the processes shown in FIGS. That is, when creating each playlist, it is also possible to acquire the correct “shooting date” information and reproduce each image in the order of “shooting date”.

  The photographic image display device, the photographic image display program, and the recording medium on which the photographic image display program of the present invention is recorded are a digital camera or other electronic device, and reproduce a large number of images in order using a function such as a slide show. This can be applied to the intended use, and is useful for reproducing the images in a more appropriate order for the user who wants to view the images.

It is a block diagram which shows the main hardware constitutions of the digital camera of 1st Embodiment and 2nd Embodiment. It is a figure which shows main operation | movement of the digital camera of 1st Embodiment, and is a flowchart which shows operation | movement in the case of receiving image data. It is a figure which shows main operation | movement of the digital camera of 1st Embodiment, and is a flowchart which shows operation | movement in the case of reproducing | regenerating an image. It is a figure which shows main operation | movement of the digital camera of 2nd Embodiment, and is a flowchart which shows operation | movement in the case of receiving image data. It is a figure which shows main operation | movement of the digital camera of 2nd Embodiment, and is a flowchart which shows operation | movement in the case of reproducing | regenerating an image.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Focus lens 12 Zoom lens 13 Aperture shutter 14 Motor 15 Motor drive circuit 16 Image sensor 17 A / D converter 18 Image signal processing part 19 Accumulation part 20 Central control part (CPU)
21 Internal ROM for recording
22 Media interface 23 Media control unit 24 USB connector 25 USB communication control unit 26 Antenna 27 IrDA communication control unit 28 Compression / decompression processing unit 29 RAM
30 ROM for control program
31 Display Control Unit 32 Display Unit 33 Operation Unit

Claims (12)

A captured image display device having a function of reading data from one or more storage devices each holding at least a plurality of data files including images and sequentially reproducing the plurality of images on a predetermined display screen. And
Transfer data identification means for identifying whether or not each image data file is data transferred by communication,
For data files other than data transferred by communication, a time stamp indicating the creation time of the data file is acquired as shooting date / time information, and for data files composed of data transferred by communication, the data file Shooting date and time information acquisition means for acquiring shooting date and time information by analyzing the internal data of
Reproduction order determining means for determining the image reproduction order of a plurality of data files based on the photographing date information acquired by the photographing date information acquisition means;
A photographed image display device characterized by comprising: A captured image display device having a function of reading data from one or more storage devices each holding at least a plurality of data files including images and sequentially reproducing the plurality of images on a predetermined display screen. And
Transfer data identification means for identifying whether or not each image data file is data transferred by communication,
Reference is made to a plurality of data files held on the storage device according to a predetermined extraction condition, and information indicating the reproduction order of images is recorded for the first set of data files other than the data transferred by communication. First playlist creation means for creating a first playlist that includes:
Reference is made to a plurality of data files held on the storage device in accordance with a predetermined extraction condition, and information representing the image reproduction order is recorded for a second set of data files composed of data transferred by communication. Second playlist creation means for creating a second playlist that has been played,
Playlist reproduction order determination means for referring to the first playlist and the second playlist in a predetermined order and determining the image reproduction order according to the contents of both;
A photographed image display device characterized by comprising: The captured image display device according to claim 2,
At least one of the first playlist creation unit and the second playlist creation unit may include, as the predetermined extraction condition, all images, still images, moving images, shooting date / time, shooting date, image storage folder, A photographed image display device using information representing at least one of a recording medium and a model of the image pickup device. The captured image display device according to claim 2,
The playlist reproduction order determination means includes a first mode in which a plurality of images are sequentially reproduced according to the contents of the first playlist, and then a plurality of images are sequentially reproduced according to the contents of the second playlist; A captured image comprising at least one of a second mode in which a plurality of images are sequentially reproduced according to the contents of the first playlist and then a plurality of images are sequentially reproduced according to the contents of the first playlist. Display device. Executable on a predetermined computer for reading data from one or more storage devices each holding at least a plurality of data files including images and sequentially reproducing the plurality of images on a predetermined display screen A captured image display program,
A transfer data identification step for identifying whether or not each image data file is data transferred by communication; and
For data files other than data transferred by communication, a time stamp indicating the creation time of the data file is acquired as shooting date / time information, and for data files composed of data transferred by communication, the data file Shooting date and time information acquisition step of acquiring shooting date and time information by analyzing the internal data of
A reproduction order determining step for determining an image reproduction order of a plurality of data files based on the information of the photographing date acquired in the photographing date information acquisition step;
A photographed image display program characterized by comprising: Executable on a predetermined computer for reading data from one or more storage devices each holding at least a plurality of data files including images and sequentially reproducing the plurality of images on a predetermined display screen A captured image display program,
A transfer data identification step for identifying whether or not each image data file is data transferred by communication; and
Reference is made to a plurality of data files held on the storage device according to a predetermined extraction condition, and information indicating the reproduction order of images is recorded for the first set of data files other than the data transferred by communication. A first playlist creating step of creating a first playlist that is,
Reference is made to a plurality of data files held on the storage device in accordance with a predetermined extraction condition, and information representing the image reproduction order is recorded for a second set of data files composed of data transferred by communication. A second playlist creating step for creating the second playlist that has been performed;
A playlist playback order determination step of referring to the first playlist and the second playlist in a predetermined order and determining an image playback order according to the contents of both;
A photographed image display program characterized by comprising: A captured image display program according to claim 6,
At least one of the first playlist creation step and the second playlist creation step includes, as the predetermined extraction condition, all images, still images, moving images, shooting date / time, shooting date, image storage destination folder, image A photographic image display program characterized by using information representing at least one of a recording medium and a model of an imaging apparatus. A captured image display program according to claim 6,
The playlist reproduction order determination step includes a first mode in which a plurality of images are sequentially reproduced according to the contents of the first playlist, and then a plurality of images are sequentially reproduced according to the contents of the second playlist; And a second mode of sequentially reproducing a plurality of images according to the contents of the first playlist after sequentially reproducing the plurality of images according to the contents of the second playlist. Captured image display program. Data can be read out from one or more storage devices each holding at least a plurality of data files including images, and read out by a predetermined computer for sequentially reproducing the plurality of images on a predetermined display screen A recording medium in which a captured image display program is recorded, and the captured image display program includes:
A transfer data identification step for identifying whether or not each image data file is data transferred by communication; and
For data files other than data transferred by communication, a time stamp indicating the creation time of the data file is acquired as shooting date / time information, and for data files composed of data transferred by communication, the data file Shooting date and time information acquisition step of acquiring shooting date and time information by analyzing the internal data of
A recorded recording of a captured image display program, comprising: a reproduction order determination step for determining an image reproduction order of a plurality of data files based on the information of the photographing date acquired in the photographing date information acquisition step Medium. Data can be read out from one or more storage devices each holding at least a plurality of data files including images, and read out by a predetermined computer for sequentially reproducing the plurality of images on a predetermined display screen A recording medium in which a captured image display program is recorded, and the captured image display program includes:
A transfer data identification step for identifying whether or not each image data file is data transferred by communication; and
Reference is made to a plurality of data files held on the storage device according to a predetermined extraction condition, and information indicating the reproduction order of images is recorded for the first set of data files other than the data transferred by communication. A first playlist creating step of creating a first playlist that is,
Reference is made to a plurality of data files held on the storage device in accordance with a predetermined extraction condition, and information representing the image reproduction order is recorded for a second set of data files composed of data transferred by communication. A second playlist creating step for creating the second playlist that has been performed;
A playlist playback order determination step of referring to the first playlist and the second playlist in a predetermined order and determining an image playback order according to the contents of both;
The recording medium which recorded the picked-up image display program characterized by providing. A recording medium on which the captured image display program according to claim 10 is recorded,
At least one of the first playlist creation step and the second playlist creation step includes, as the predetermined extraction condition, all images, still images, moving images, shooting date / time, shooting date, image storage destination folder, image A recording medium on which a captured image display program is recorded, wherein information representing at least one of a recording medium and a model of an imaging apparatus is used. A recording medium on which the captured image display program according to claim 10 is recorded,
The playlist reproduction order determination step includes a first mode in which a plurality of images are sequentially reproduced according to the contents of the first playlist, and then a plurality of images are sequentially reproduced according to the contents of the second playlist; And a second mode of sequentially reproducing a plurality of images according to the contents of the first playlist after sequentially reproducing the plurality of images according to the contents of the second playlist. A recording medium on which a captured image display program is recorded.

Images