JP2012142881A - Caption editing device, caption editing method, and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To support a user to change an image to be displayed simultaneously with a caption on a screen when reproducing an image with a caption added thereto.SOLUTION: A caption editing device comprises: an editing screen output unit 51 that outputs a caption editing screen for arranging and displaying frame images in an image data file having plural frame images with a determined display order according to the display order on a screen, and displaying a caption in a caption data file having a caption and frame identification information for specifying a caption display target frame image to be displayed simultaneously with the caption together with the caption display target frame image on the screen; an operation information input unit 52 that inputs operation information by a user based on the caption editing screen; and a caption data file editing unit 53 that changes content of the caption data file according to the operation information.

Description

  The present invention relates to a caption editing device, a caption editing method, and a computer program.

  Conventionally, for example, Patent Literature 1 discloses a technique for generating an animation-like image as summary content of a digital broadcast program. In the summary content generation apparatus described in Patent Document 1, summary content for displaying captions on a screen together with decoded images corresponding to the captions using encoded image data and caption data included in digital broadcast program data. Is generated.

JP 2010-081323 A

  However, the above-described conventional summary content generation apparatus mechanically edits the caption length and breaks in the digital broadcast program data and selects an optimal image corresponding to the caption, but the user wants to change the content of the caption Alternatively, there is a desire to freely set an image to be displayed on the screen simultaneously with subtitles when reproducing summary content.

  The present invention has been made in view of such circumstances, and the user changes the image displayed on the screen at the same time as the subtitle when reproducing the image with the subtitle added, such as summary content. It is an object to provide a caption editing device, a caption editing method, and a computer program that can support the above.

  In order to solve the above problems, a caption editing device according to the present invention displays frame images in an image data file having a plurality of frame images with a display order arranged on a screen according to the display order, and Edit screen output for outputting a subtitle edit screen for displaying subtitles in a subtitle data file having frame identification information for specifying a subtitle display target frame image displayed simultaneously with the subtitles and the subtitle display target frame image on the screen A subtitle data file editing section that changes the content of the subtitle data file in accordance with the operation information. It is characterized by.

  In the caption editing device according to the present invention, the editing screen output unit may display a caption on the screen according to the operation information for changing a caption display target frame image corresponding to the caption displayed on the screen. It has a subtitle movement control part which displays a change target subtitle displayed with a frame image with a change destination frame image.

  In the caption editing device according to the present invention, the caption movement control unit displays the range in which the change target caption can be moved immediately before the caption display target frame image corresponding to the change target caption. The frame image is immediately limited to the frame image immediately before the subtitle display target frame image displayed immediately after the subtitle display target frame image corresponding to the subtitle to be changed.

  In the caption editing device according to the present invention, the editing screen output unit magnifies and displays frame images that are sequentially displayed on the screen while the subtitles to be changed are moved.

  In the caption editing device according to the present invention, the editing screen output unit enlarges and displays a frame image continuous with the caption display target frame image corresponding to the caption selected on the screen. It is characterized by having.

  In the caption editing device according to the present invention, the editing screen output unit expands a caption display target frame image corresponding to the caption selected on the screen in accordance with the operation information for selecting the caption on the screen. And a subtitle selection control unit for displaying.

  In the caption editing device according to the present invention, the editing screen output unit reduces or enlarges the display interval of the frame image on the screen according to the operation information for changing the display interval of the frame image displayed on the screen. And a display scale control unit.

  In the caption editing device according to the present invention, the display scale control unit displays an operation bar for operating a display interval of frame images on the screen, and the image is displayed when the operation bar is operated to a maximum reduction. It is characterized in that all frame images in the data file have a maximum display interval that can be displayed side by side on the screen in accordance with the display order.

  In the caption editing method according to the present invention, the editing screen output unit displays the frame images in the image data file having a plurality of frame images with the display order arranged on the screen according to the display order, and the caption and the caption Outputting a subtitle editing screen for displaying subtitles in a subtitle data file having frame identification information for specifying a subtitle display target frame image displayed simultaneously with the subtitle display target frame image on the screen; and input operation information A section for inputting operation information by a user based on the subtitle editing screen; and a subtitle data file editing section for changing contents of the subtitle data file according to the operation information. Features.

The computer program according to the present invention displays frame images in an image data file having a plurality of frame images with a predetermined display order arranged on the screen according to the display order on the computer, and is displayed simultaneously with subtitles and subtitles. Outputting a subtitle editing screen for displaying subtitles in a subtitle data file having frame identification information for specifying a subtitle display target frame image together with the subtitle display target frame image on the screen, and based on the subtitle editing screen It is a computer program for executing a step of inputting operation information by a user and a step of changing the content of the caption data file in accordance with the operation information.
As a result, the above-described caption editing device can be realized using a computer.

  According to the present invention, it is possible to assist the user in changing the image displayed on the screen at the same time as the caption when reproducing the image with the caption added, such as summary content. It is done.

1 is a block diagram illustrating a configuration of an authoring system 1 according to an embodiment of the present invention. It is a block diagram which shows the structure of the caption editing part 32 shown in FIG. It is an example of a structure of an image data file. It is an example of a structure of an image index file. It is an example of composition of subtitle edit screen 100 concerning one embodiment of the present invention. It is a structural example of the whole edit screen 1000 which concerns on one Embodiment of this invention. It is a screen example for demonstrating the display scale change process which concerns on one Embodiment of this invention. It is a screen example for demonstrating the display process of a subtitle periphery frame image which concerns on one Embodiment of this invention. It is an example of a screen for explaining subtitle movement processing according to an embodiment of the present invention. It is an example of a screen for explaining subtitle selection processing according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of an authoring system 1 according to an embodiment of the present invention. In FIG. 1, the authoring system 1 includes a program material input unit 10, an intermediate file generation unit 20, an editing unit 30, and an output file generation unit 40. The program material input unit 10 inputs digital video content to be edited. The digital video content has an image with captions added. As the digital video content, for example, the summary content generated by the summary content generation device described in Patent Document 1 can be used.

  The intermediate file generation unit 20 generates an intermediate file for editing from the digital video content input by the program material input unit 10. The editing unit 30 adds a change corresponding to the editing operation by the user to the intermediate file generated by the intermediate file generating unit 20. The editing unit 30 includes a caption editing unit 32. The caption editing unit 32 changes the intermediate file according to the caption editing operation by the user. In addition to the caption editing unit 32, the editing unit 30 may be provided with a chapter editing function, a function for editing program meta information, and the like.

  The output file generation unit 40 converts the intermediate file output from the editing unit 30 into a file of a predetermined video format. The converted file becomes an output file of digital video content.

  FIG. 2 is a block diagram showing a configuration of the caption editing unit 32 shown in FIG. In FIG. 2, the caption editing unit 32 includes an editing screen output unit 51, an operation information input unit 52, and a caption data file editing unit 53. The edit screen output unit 51 includes a display scale control unit 54, a caption peripheral frame image display control unit 55, a caption movement control unit 56, and a caption selection control unit 57.

  Of the intermediate files generated by the intermediate file generation unit 20, an image data file, an image index file, and a caption data file are input to the caption editing unit 32. FIG. 3 shows a configuration example of the image data file. FIG. 4 is a configuration example of an image index file. In the image data file (video.dat), frame images (jpeg1, jpeg2, jpeg3,...) That are still images are stored according to the display order. In the image index file (index0.dat), the head address (fixed length: 4 bytes) of each frame image (jpeg1, jpeg2, jpeg3,...) In the image data file (video.dat) is stored. .

  The subtitle data file stores subtitles and frame identification information (for example, frame numbers) for specifying subtitle display target frame images that are displayed simultaneously with the subtitles. Data related to one subtitle is stored in the subtitle data file in the format of “frame number <tab> subtitle”, for example. In the present embodiment, “frame number <tab> subtitle” is used as the data format related to one subtitle in the subtitle data file.

  The edit screen output unit 51 outputs a subtitle edit screen. The caption editing screen is a screen that supports the user to change the data “frame number <tab> subtitle” in the caption data file. The caption editing screen is displayed on a display device (not shown). The display device may be a CRT (Cathode Ray Tube), a liquid crystal display device, or the like that is directly connected to the authoring system 1 or may be connected via a communication line.

  The operation information input unit 52 inputs operation information that is the content of the operation of the input device (not shown) by the user based on the caption editing screen. The input device may be a keyboard, a mouse, or the like that is directly connected to the authoring system 1 or may be connected via a communication line.

  The caption data file editing unit 53 changes the data “frame number <tab> subtitle” in the caption data file in accordance with the operation information input from the operation information input unit 52. For example, the correspondence between the frame number and the subtitle is changed, the content of the subtitle is changed, the subtitle is deleted (the data “frame number <tab> subtitle” is deleted), or the subtitle is changed. Add (add data “frame number <tab> subtitle”).

  Hereinafter, operations of the caption editing unit 32 according to the present embodiment will be sequentially described in detail.

[Subtitle edit screen output]
FIG. 5 is a configuration example of the caption editing screen 100 according to the present embodiment. The edit screen output unit 51 outputs the subtitle edit screen 100. On the caption editing screen 100, the frame images F1, F2, F3, etc. in the image data file are displayed side by side in accordance with the display order. In the example of FIG. 5, the frame images F1, F2, F3, and the like are displayed in a line in the vertical direction of the caption editing screen 100. The subtitle editing screen 100 is provided with a scroll bar 110 for scrolling the screen up and down.

  Further, on the caption editing screen 100, the captions J1, J2, J3, etc. in the caption data file are displayed together with the caption display target frame image. The edit screen output unit 51 uses the data in the caption data file, for example, “frame number (F4) <tab> subtitle (J1)”, and uses the frame image F4 as a caption display target frame image corresponding to the caption (J1). The caption J1 and the frame image F4 are displayed together on the caption editing screen 100 of FIG. In the example of FIG. 5, the caption J1 is displayed at a position close to the display position of the frame image F4. The display position of the caption J1 is closer to the display position of the frame image F4 than the other captions. Thereby, the user can recognize that the caption display target frame image of the caption J1 is the frame image F4.

  The edit screen output unit 51 adjusts the display interval of the frame images F1, F2, F3, etc. depending on the presence or absence of subtitles. In the example of FIG. 5, when the subtitle display target frame images corresponding to a plurality of subtitles are continuous frame images, the display interval of the frame images is narrower than that when it is not. For example, since the caption display target frame images corresponding to the captions J2, J3, and J4 are the continuous frame images F9, F10, and F11, the display intervals of the frame images F9, F10, and F11 are narrow. As a result, frame images and subtitles are efficiently displayed on a fixed screen size.

  As shown in FIG. 6, the caption editing screen 100 may be displayed on a display device in combination with other screens 1100 and 1200. In FIG. 6, a screen 1000 is an entire editing screen output by the editing unit 30. A screen 1100 is a preview screen of the frame image F4 selected on the caption editing screen 100. At this time, since the frame image F4 is a subtitle display target frame image of the subtitle J1, the subtitle J1 is displayed together with the frame image F4 on the preview screen. A screen 1200 is a screen for selecting a chapter. As an operation for selecting a subtitle, for example, the user moves the pointer on the subtitle editing screen 100 using the mouse and clicks the subtitle.

[Change display scale]
FIG. 7 is a screen example for explaining display scale changing processing according to the present embodiment. The display scale control unit 54 reduces or enlarges the frame image display interval on the caption editing screen 100 in accordance with the operation information related to the display scale change input from the operation information input unit 52.

  In FIG. 7, a display scale operation bar 210 for changing the display scale is provided on the caption editing screen 100. In the present embodiment, the display scale control unit 54 reduces the frame image display interval when the display scale operation bar 210 is moved in the right direction, and increases the frame image display interval when the display scale operation bar 210 is moved in the left direction. The display scale control unit 54 determines the display interval of frame images according to the position of the display scale operation bar 210. When the display scale operation bar 210 is positioned at the rightmost end (that is, when operated to the maximum reduction), the display scale control unit 54 displays all frame images in the image data file on the subtitle editing screen 100 according to the display order. The maximum display interval that can be displayed side by side.

  In the example of FIG. 7, on the caption editing screen 100 of FIG. 7A, the user moves the display scale operation bar 210 to the right to the position of FIG. 7B. Based on the operation information related to the display scale operation bar 210, the display scale control unit 54 reduces the display interval of the frame images. As a result, the display content changes from the caption editing screen 100 in FIG. 7A to the caption editing screen 100 in FIG. 7B, and more frame images and captions are displayed in one screen.

[Display subtitle frame image]
FIG. 8 is an example of a screen for explaining the display processing of the caption peripheral frame image according to the present embodiment. The subtitle peripheral frame image display control unit 55 enlarges and displays a frame image continuous to the subtitle display target frame image corresponding to the subtitle selected on the subtitle editing screen 100.

  In FIG. 8A, the caption J23 is selected on the caption editing screen 100. The frame image F40 is a caption display target frame image of the caption J23. In the example of FIG. 8, the editing screen output unit 51 displays the subtitle display target frame image F40 of the selected subtitle J23 in an enlarged manner than the other frame images. Here, when the user performs a predetermined operation (for example, pressing the shift key), the subtitle peripheral frame image display control unit 55 sets the frame image continuous to the subtitle display target frame image F40 of the selected subtitle J23 from the initial size. Is also displayed enlarged. The size when the frame image continuous with the caption display target frame image F40 is enlarged is larger than the initial size and smaller than the size of the caption display target frame image F40 of the selected caption J23.

  Thereby, as illustrated in FIG. 8B, the subtitle peripheral frame image display control unit 55 displays a frame image continuous to the subtitle display target frame image F40 of the selected subtitle J23 on the subtitle editing screen 100. F30 to F39 and F41 to F45 are enlarged and displayed from the initial size. The sizes of these frame images F30 to F39 and F41 to F45 are larger than the initial size and smaller than the size of the subtitle display target frame image F40 of the selected subtitle J23. The subtitle peripheral frame image display control unit 55 displays only the number of frame images that can be displayed in size on the subtitle editing screen 100 of FIG.

  The user displays the frame images F30 to F39 and F41 to F45 that are continuous with the subtitle display target frame image F40 of the selected subtitle J23 in an enlarged size than the initial size, so that the frame images F30 to F39 and F41 to F45 are displayed. Easy to see. This makes it easier for the user to find a more appropriate frame image than the current frame image F40 as the caption display target frame image of the caption J23 from among the frame images F30 to F39 and F41 to F45 that are continuous with the frame image F40. For example, when there is a problem in the current subtitle display target frame image F40 of the subtitle J23 (for example, image disturbance, telop display in the frame image, etc.), the frame images F30 to F39 that are continuous to the frame image F40. , Selecting an appropriate frame image from F41 to F45 and updating it to the caption display target frame image of the caption J23.

[Subtitle move]
FIG. 9 is an example of a screen for explaining subtitle movement processing according to the present embodiment. The subtitle movement control unit 56 changes the change target subtitle displayed together with the subtitle display target frame image on the subtitle editing screen 100 according to the operation information related to subtitle movement input from the operation information input unit 52. Display with The subtitle moving process is a process for assisting the user in changing the subtitle display target frame image corresponding to the subtitle displayed on the subtitle editing screen 100.

  In FIG. 9 (1), the subtitle J 8 is selected on the subtitle editing screen 100. The frame image F18 is a caption display target frame image of the caption J8. In the example of FIG. 9, the edit screen output unit 51 displays the subtitle display target frame image F18 of the selected subtitle J8 in a larger size than the other frame images. Here, when the user performs a predetermined operation for changing the subtitle display target frame image corresponding to the subtitle J8 (for example, dragging the subtitle J8 to the change-destination frame image), the subtitle movement control unit 56 performs FIG. As illustrated in (2), the selected subtitle J8 is displayed together with the frame image F173 to be changed. Then, the editing screen output unit 51 enlarges and displays the frame image F173 as a caption display target frame image corresponding to the selected caption J8. Thereby, the caption data file editing unit 53 changes the data related to the caption J8 in the caption data file from “frame number (F18) <tab> subtitle (J8)” to “frame number (F173) <tab> subtitle (J8). ) ".

  The subtitle movement control unit 56 limits the range in which the target subtitle for changing the subtitle display target frame image can be moved. The limitation on the movement range of the caption will be described with reference to the example of FIG. On the subtitle editing screen 100 in FIG. 9A, the range in which the target subtitle J8 whose subtitle display target frame image is to be changed is displayed immediately before the subtitle display target frame image F18 corresponding to the subtitle J8 to be changed. From the frame image F171 immediately after the subtitle display target frame image F17 to the frame image F181 immediately before the subtitle display target frame image F19 displayed immediately after the subtitle display target frame image F18 corresponding to the subtitle J8 to be changed.

  Due to the restriction on the movement range of the subtitles, the user can move the subtitle J8 to be changed only to frame images between the frame images F171 to F181 on the subtitle editing screen 100 in FIG. Can not. This restriction is for preventing the reverse of the subtitle position. If the subtitle J8 is moved to a frame image before the subtitle display target frame image F17 that is displayed immediately before the subtitle display target frame image F18 on the subtitle edit screen 100 in FIG. 9A, the subtitle J8 is displayed before the subtitle J8. The caption position is reversed between the caption J7. Similarly, if the subtitle J8 is moved to a frame image after the subtitle display target frame image F19 that is displayed immediately after the subtitle display target frame image F18, the subtitle position between the subtitle J9 and the subtitle J9 after the subtitle J8 is changed. It will be reversed. In order to prevent such inconvenience, the range in which the subtitle can be moved is limited.

The edit screen output unit 51 displays the selected frame image F18 and subtitle J8 on the preview screen 1100 in the subtitle edit screen 1000 of FIG. When the user moves the subtitle J8 on the subtitle edit screen 100 as an operation for changing the subtitle display target frame image corresponding to the selected subtitle J8, the edit screen output unit 51 moves along with the movement of the subtitle J8. The changed frame images to be changed are sequentially enlarged and displayed on the preview screen 1100. This makes it easier for the user to visually recognize the change destination frame image.
When the user moves the subtitle J8 on the subtitle edit screen 100 as an operation for changing the subtitle display target frame image corresponding to the selected subtitle J8, the edit screen output unit 51 moves along with the movement of the subtitle J8. The change-destination frame images may be enlarged and displayed on the caption editing screen 100 sequentially. Accordingly, even when the preview screen 1100 is not provided, the user can easily view the frame image to be changed.

[Subtitle selection]
FIG. 10 is a screen example for explaining subtitle selection processing according to the present embodiment. The subtitle selection control unit 57 enlarges and displays the subtitle display target frame image corresponding to the subtitle selected on the subtitle editing screen 100 in accordance with the operation information related to subtitle selection input from the operation information input unit 52. .

  In FIG. 10A, the caption J10 is selected on the caption editing screen 100. The frame image F20 is a caption display target frame image of the caption J10. In the example of FIG. 10, the edit screen output unit 51 displays the subtitle display target frame image F20 of the selected subtitle J10 in an enlarged manner than the other frame images. Here, when the user performs a predetermined operation for changing the subtitle to be selected (for example, pressing the up key or the down key while the subtitle is selected), the subtitle selection control unit 57 displays on the subtitle editing screen 100. The enlarged subtitle display target frame image corresponding to the subtitle to be changed is displayed.

  In the example of FIG. 9A, the user presses the down key in a state where the user selects the subtitle J10 (a state in which the subtitle display target frame image F20 of the subtitle J10 is displayed larger than the other frame images). To do. Thereby, the subtitle selection control unit 57 displays the subtitle display target frame image F21 corresponding to the subtitle J11 immediately after the subtitle J10 larger than the other frame images displayed at the initial size, and displays the subtitle of the subtitle J10. The display size of the display target frame image F20 is returned to the initial size. Thereby, the user can easily visually recognize that the selected subtitle has been changed from the subtitle J10 to the subtitle J11.

  The subtitle data file editing unit 53 recognizes the selected subtitle based on the operation information related to subtitle selection input from the operation information input unit 52. In the example of FIG. 10, when the down key is pressed while the subtitle J10 is selected, the subtitle data file editing unit 53 changes the selected subtitle from the subtitle J10 to the subtitle J11 immediately after the subtitle J10. Recognize that

  The edit screen output unit 51 displays the selected frame image F20 and subtitle J10 on the preview screen 1100 in the subtitle edit screen 1000 of FIG. Then, when the user performs an operation of changing the subtitle to be selected, the editing screen output unit 51 sequentially displays the frame image (subtitle display target frame image) to be changed according to the change of the subtitle to be selected, in the preview screen 1100. Zoom in on the top. In the example of FIG. 10B, the edit screen output unit 51 displays the caption display target frame image F21 corresponding to the changed caption J11 on the preview screen 1100 in an enlarged manner. This makes it easier for the user to visually recognize the change-target frame image (subtitle display target frame image), so that it is easy to determine whether the subtitle and the subtitle display target frame image match in terms of content.

As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the specific structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.
2 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read by a computer system. The subtitle editing process may be performed by executing. Here, the “computer system” may include an OS and hardware such as peripheral devices.
Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
“Computer-readable recording medium” refers to a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a DVD (Digital Versatile Disk), and a built-in computer system. A storage device such as a hard disk.

Further, the “computer-readable recording medium” means a volatile memory (for example, DRAM (Dynamic DRAM) in a computer system that becomes a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. Random Access Memory)), etc., which hold programs for a certain period of time.
The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

DESCRIPTION OF SYMBOLS 1 ... Authoring system, 10 ... Program material input part, 20 ... Intermediate file generation part, 30 ... Editing part, 32 ... Subtitle editing part, 40 ... Output file generation part, 51 ... Edit screen output part, 52 ... Operation information input part 53 ... Subtitle data file editing unit 54 ... Display scale control unit 55 ... Subtitle peripheral frame image display control unit 56 ... Subtitle movement control unit 57 ... Subtitle selection control unit

Claims (10)

Frame identification that identifies frame images in an image data file having a plurality of frame images with a predetermined display order arranged on the screen according to the display order, and that identifies a subtitle display target frame image that is displayed simultaneously with the subtitles An edit screen output unit for outputting a subtitle edit screen for displaying the subtitle in the subtitle data file having information on the screen together with the subtitle display target frame image;
An operation information input unit for inputting operation information by the user based on the caption editing screen;
A subtitle data file editing unit that changes the content of the subtitle data file according to the operation information;
A subtitle editing apparatus characterized by comprising: The edit screen output unit
The subtitle display target frame image corresponding to the subtitle displayed on the screen is changed. In accordance with the operation information, the change target subtitle displayed together with the subtitle display target frame image on the screen is displayed together with the change destination frame image. A subtitle movement control unit for displaying;
The subtitle editing apparatus according to claim 1, wherein: The subtitle movement control unit is configured to change the range in which the subtitle to be changed can be moved from a frame image immediately after the subtitle display target frame image that is displayed immediately before the subtitle display target frame image corresponding to the subtitle to be changed. Limit to the frame image immediately before the subtitle display target frame image displayed immediately after the subtitle display target frame image corresponding to the target subtitle.
The closed caption editing apparatus according to claim 2. The editing screen output unit displays an enlarged frame image that is sequentially displayed together during the movement of the subtitles to be changed on the screen.
The caption editing apparatus according to claim 2 or 3, wherein The edit screen output unit
A subtitle peripheral frame image display control unit that enlarges and displays a frame image continuous to a subtitle display target frame image corresponding to the subtitle selected on the screen;
The subtitle editing apparatus according to claim 1, wherein the subtitle editing apparatus is a subtitle editing apparatus. The edit screen output unit
In accordance with the operation information for selecting a subtitle on the screen, a subtitle selection control unit that enlarges and displays a subtitle display target frame image corresponding to the subtitle selected on the screen,
The caption editing device according to claim 1, wherein the caption editing device is the same as the caption editing device according to claim 1. The edit screen output unit
A display scale control unit that reduces or enlarges the display interval of the frame image on the screen according to the operation information for changing the display interval of the frame image displayed on the screen;
The subtitle editing apparatus according to claim 1, wherein the subtitle editing apparatus is a subtitle editing apparatus. The display scale control unit displays an operation bar for operating a display interval of frame images on the screen, and displays all frame images in the image data file when the operation bar is operated to a maximum reduction. The maximum display interval that can be displayed side by side on the screen according to the order,
8. The caption editing apparatus according to claim 7, wherein The editing screen output unit displays the frame images in the image data file having a plurality of frame images with a predetermined display order, arranged on the screen according to the display order, and is displayed at the same time as the subtitles and the subtitles. Outputting a caption editing screen for displaying a caption in a caption data file having frame identification information for specifying an image on the screen together with the caption display target frame image;
An operation information input unit inputting operation information by a user based on the caption editing screen;
A subtitle data file editing unit changing the content of the subtitle data file according to the operation information;
A subtitle editing method comprising: On the computer,
Frame identification that identifies frame images in an image data file having a plurality of frame images with a predetermined display order arranged on the screen according to the display order, and that identifies a subtitle display target frame image that is displayed simultaneously with the subtitles Outputting a caption editing screen for displaying the caption in the caption data file having information on the screen together with the caption display target frame image;
Inputting user operation information based on the caption editing screen;
Changing the content of the caption data file according to the operation information;
A computer program for running.

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