JP2021068388A - Information processing device, control method therefor, and program - Google Patents

Abstract

To provide a technique which allows for storing an image file with the same attribute as before regardless of restrictions on the number of digits of the extension.SOLUTION: An information processing device provided herein is configured to convert a first extension attached to a target file to be stored or sent into a second extension different from the first extension, and associates conversion information for restoring the first extension with the target file.SELECTED DRAWING: Figure 2

Description

The present invention relates to an information processing device that converts a file name, a control method thereof, and a program.

There are various types of files handled by information processing devices, and it has been widely practiced to indicate the characteristics of the files by the extension. In addition, when a plurality of files are stored, a mechanism has been used to facilitate access by storing each file under a certain rule. For example, a format called DCF (Design Rule for Camera File system) has been used as a mechanism for recording shooting data with a digital camera. In this format, in addition to the rule of the storage folder of the image file, the rule of the file name is defined so that the file is stored with the file name consisting of the main body name and the three-digit extension.

On the other hand, with the development of computer systems, various file formats have come to exist, and conversion between these file formats has been performed. Patent Document 1 discloses a technique that makes it possible to refer to a file attribute before conversion in such a file format conversion.

Japanese Unexamined Patent Publication No. 2005-258592

However, due to rules regarding file names in the file system, such as restrictions on the number of digits in the extension, there are cases where files cannot be stored without converting the file names. Also, when converting the file name, it was possible to refer to the attribute before conversion, but it was not possible to return the file name to the state before conversion based on this attribute.

The present invention provides a technique capable of storing an image file having the same attributes as the conventional one regardless of restrictions on the number of digits of the extension.

The information processing device according to one aspect of the present invention has the following configuration. That is,
An acquisition method for acquiring the target file to be saved or transmitted, and
A conversion means for converting the first extension attached to the target file acquired by the acquisition means into a second extension different from the first extension, and
The association means for associating the conversion information for restoring the first extension with the target file.

According to the present invention having the above configuration, it is possible to store an image file having the same attributes as before, regardless of restrictions on the number of digits of the extension.

The block diagram which shows the structural example of the information processing system which concerns on embodiment. A flowchart showing a file reception process by the photographing device. The figure which shows an example of the conversion table. A flowchart showing a file transmission process by the photographing device. A flowchart showing a file transmission process by an information processing device. A flowchart showing file reception processing by an information processing device. The figure which shows an example of a user interface.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The following embodiments do not limit the invention according to the claims. Although a plurality of features are described in the embodiment, not all of the plurality of features are essential to the invention, and the plurality of features may be arbitrarily combined. Further, in the attached drawings, the same or similar configurations are designated by the same reference numbers, and duplicate explanations are omitted.

In the following, still images and moving images (a plurality of continuous images and videos) are collectively referred to as images.

<First Embodiment>
FIG. 1 is a block diagram showing a configuration example of an information processing system according to the first embodiment. Hereinafter, the configuration of the information processing system according to the first embodiment will be described with reference to FIG. The information processing system of the present embodiment includes a photographing device 101 and an information processing device 160. The photographing device 101 is typically a digital camera. The photographing device 101 may be connected to the information processing device 160 via, for example, a network 140. The network 140 may be wired or wireless. In the embodiment, the photographing apparatus 101 is shown as an example of the information processing apparatus having a file conversion function, but the present invention is not limited to this, and a personal computer, a smart fan, a tablet, or the like may be used. Further, examples of the information processing device 160 include a personal computer, a smartphone, and a tablet. That is, in the embodiment, the system in which the photographing device 101 and the information processing device 160 are connected is shown, but the present invention is not limited to this, and any system in which two information processing devices having different file systems are connected. Good.

In the photographing apparatus 101, the light taken in from the lens 111 becomes an electric signal via the optical sensor 112, and is further digitized by the A / D converter 113 to become an image signal. The image signal processing circuit 114 performs development processing or the like on the image signal to generate an image. The compression coding circuit 115 performs a compression coding process suitable for communication and recording on the image generated by the image signal processing circuit 114. The image file including the compressed coded image is output (transmitted) to the network 140 or output (recorded) to the recording memory 117 via the communication circuit 116. Specifically, the recording memory 117 is a recording medium such as an SD card used for the purpose of recording a generated image file, for example. Further, the image file output to the network 140 is stored in the storage medium in the information processing apparatus 160 or is directly reproduced.

The CPU 118 is a central processing unit that controls the entire photographing apparatus 101, and may be composed of a plurality of processors. The ROM 119 (Read Only Memory) is a read-only memory for storing programs and parameters that do not require changes. The RAM 120 (Random Access Memory) is a memory that temporarily stores programs and data supplied from an external device or the like. Further, the RAM 120 functions as a working memory when the CPU 118 executes various processes.

Next, a hardware configuration example of the information processing device 160 will be described. The CPU 161 controls the entire information processing apparatus 160 by using computer programs and data stored in the ROM 162 and the RAM 163. The CPU 161 may be composed of a plurality of processors. The ROM 162 stores a program or the like that does not need to be changed. The RAM 163 temporarily stores programs and data supplied from the auxiliary storage device 164, data (for example, an image file) supplied from the outside via the communication I / F 167, and the like. The auxiliary storage device 164 has a storage medium such as a hard disk drive, and stores various data files such as image data and audio data.

The display unit 165 is composed of, for example, a liquid crystal display, an LED, or the like, and displays a GUI (Graphical User Interface) for the user to operate the information processing device 160. The operation unit 166 is composed of, for example, a keyboard, a mouse, a joystick, a touch panel, and the like, and inputs various instructions to the CPU 161 in response to an operation by the user. The communication I / F 167 is used for communication with an external device of the information processing device 160. In the example of FIG. 1, the information processing device 160 realizes communication with the photographing device 101 by connecting the communication I / F 167 to the network 140. The CPU 161 can store the image file received from the photographing device 101 via the communication I / F 167 in the auxiliary storage device 164. Further, the CPU 161 can transmit an image file to the photographing device 101 via the communication I / F 167.

The configuration of the photographing device 101 has been described above according to the operation of recording the captured image in the recording memory 117 or the operation of outputting the captured image to the information processing device 160 via the network 140. On the other hand, the photographing device 101 may capture an image from an external device (for example, the information processing device 160). Next, such a case will be described.

The image file stored in the auxiliary storage device 164 in the information processing device 160 is sent to the photographing device 101 via, for example, the communication I / F 167 and the network 140. The image file sent from the information processing device 160 is received by the communication circuit 116 and stored in the recording memory 117. The image file stored in the recording memory 117 is treated in the same manner as the image file obtained from the image taken by the photographing device 101. Alternatively, the image file recorded by the information processing device 160 or other external device may be stored in a recording medium such as an SD card and provided to the photographing device 101. When such a recording medium is attached, the photographing device 101 recognizes it as a recording memory 117 and can read an image file (an image file recorded by an external device) stored in the recording medium.

As described above, the image file can be exchanged between the photographing device 101 and the information processing device 160.

By the way, in the photographing apparatus 101, a format called DCF (Design Rule for Camera File system, CIPA DC-009-2010) is widely adopted as a storage format for storing a file in the recording memory 117. The DCF format defines that the file name is treated as an 8-digit body name and a 3-digit extension in consideration of compatibility with old file systems. The DCF also stipulates the naming of the main body name and extension that make up the file name.

On the other hand, in recent years, various file systems have been used, and file systems in which the extension can be set to 4 digits or more and file systems in which the concept of extension does not exist are becoming common. For example, IFF (ISO / IEC 23009-12 Image File Format) stipulates the use of a 4-digit extension such as ".heic".

Hereinafter, unless otherwise specified, all embodiments show an example in which the photographing apparatus 101 uses DCF and the information processing apparatus 160 uses IFF. This is because the DCF clearly defines the 3-digit extension and the IFF clearly defines the 4-digit extension, which is suitable for the description of the embodiment. However, as the original extension of the widely used JPEG file is ".jpeg", it is not limited to the combination of the file system DCF and IFF. In JPEG, the 3-digit extension ".jpg" is widely used, but files with the 4-digit extension ".jpeg" are also common. Further, there is a possibility that a new file format will be defined in the future, but it goes without saying that the configuration of the present embodiment can be applied if there is the same problem even in such a case.

Next, a process for recording an image file transmitted from the information processing device 160 to the photographing device 101 via the network 140 in the recording memory 117 will be described with reference to FIG. 2A. FIG. 2A is a flowchart showing a flow of processing until an image file having a 4-digit extension is recorded in the photographing apparatus 101 that manages the image file with the 3-digit extension.

After the communication connection between the photographing device 101 and the information processing device 160 is established, the CPU 118 receives the image file 251 which is a file to be saved from the information processing device 160 via the communication circuit 116 (S201). The image file 251 has a 4-digit extension (eg, ".heic") here. In the following, an image file will be illustrated as a target file to be saved, but the present invention is not limited to this, and any other data file may be used. Next, in the photographing apparatus 101, the CPU 118 determines whether or not the image file 251 is specified (S202). If it is not specified, the program will end without storing the file. At this time, information indicating an error may be displayed on a display or the like provided in the photographing device 101. The step (S202) for confirming whether the image file 251 is specified may be omitted.

When it is determined that the image file 251 is the specified one, the CPU 118 converts the extension of the image file 251 into three digits (S203) and stores the image file 251 in the recording memory 117 (S204). As a result, the image file 251 having a 4-digit extension is stored in the recording memory 117 as an image file having a 3-digit extension. In the process of converting the extension to 3 digits (S203), the CPU 118 refers to the conversion table in which the combination of the 4-digit extension before conversion and the 3-digit extension after conversion is registered. Converts from a digit extension to a 3-digit extension. Alternatively, the CPU 118 may simply delete a part of the characters with the 4-digit extension (for example, the last character) to convert the characters to the 3-digit extension.

Further, the CPU 118 stores the conversion information for restoring the extension of the image file 251 to the original extension in the recording memory 117 (S205). As a result, the original extension of the image file stored in the recording memory 117 can be known later. Therefore, when the original extension has a definitional meaning, the definitional meaning can be grasped.

The step (S205) of storing the original extension in the recording memory 117 operates as shown in FIG. 2B, for example. That is, the CPU 118 of the photographing device 101 converts the extension acquired from the file system into a character string (text) (S206), and records this character string as a part of the attribute information of the image file 251 (S207). Alternatively, the character string may be stored in a different text file associated with the image file 251 and the text file may be recorded. A metadata file may be used instead of the text file. As a method of associating the image file 251 with the text file, the attribute information recording function provided in the file system may be used, or the main body name of the file name of the text file is the same as the main body name of the file name of the image file 251. It may be the method of. Although it is described that only the extension is recorded, the entire file name consisting of "main unit name + extension" may be recorded. Alternatively, the conversion identifier (ID303 described later) stored in the conversion table described later may be used instead of the character string of the extension.

As described above, if a conversion table that compares the 4-digit extension before conversion and the 3-digit extension after conversion can be referred to, the step of storing the original extension in the recording memory 117 (S205). May be omitted.

Next, a conversion table that associates a 4-digit extension with a converted 3-digit extension will be described. FIG. 3 is a diagram showing an example of the conversion table 300 according to the present embodiment. In the conversion table 300, combinations of extensions before and after conversion and conversion identifiers unique to each combination are registered. More specifically, the original extension 301 corresponding to the received image file 251, the converted extension 302 after the extension is converted, and the conversion uniquely assigned to each combination of the extensions before and after the conversion. The ID 303, which is an identifier, is recorded in association with the ID 303. For example, in the first line 311 the original extension 301 is recorded as ".heif" (dots are omitted in the table) and the converted extension 302 is recorded as ".hef". Further, the conversion identifier (ID303) indicating the conversion of this line 311 is "id1".

When the extension of the image file 251 received in S201 is ".heif", the extension is converted to ".hef" in S203 by referring to this conversion table. Similarly, according to line 312, ".heic" is converted to ".hec". If the extension of the received image file 251 does not exist in this conversion table, it may be determined in S202 that the file is not specified and an error may occur.

Lines 313 and 314 both have the converted extension 302 recorded as ".hex". That is, in this example, regardless of whether the extension of the image file 251 is ".heim" or ".heix", it is equally converted to ".hex". When it is necessary to identify the extension before conversion from the extension after conversion, the data recorded in S207 may be referred to. That is, by reading the character string or conversion identifier representing the original extension from the attribute information of the file, or by reading the character string or conversion identifier representing the original extension from the text file associated with the file, the original You can get the extension of.

Also, in ISO / IEC 14496-12 (ISO Base Media File Format) and its related standard ISO / IEC 23008-12 (Image File Format), there is an area called a brand in the file, which is similar to the extension. Information is described. Thereby, the image file 251 can be discriminated regardless of the extension. Therefore, in the process of converting the extension to three digits (S203), this brand area may be edited or added. For example, if the brand of "heif" is recorded in the original image data and the extension is converted to ".hef", it can be expanded by changing the brand to "he_f" (_ is an underscore), for example. It can indicate that the child has been converted. Alternatively, you may add a different brand to the brand, such as "hef_" in addition to "heif". Alternatively, by not changing the brand, the original extension can be determined even if the extension is converted.

By the way, in the present embodiment, an example is shown in which the photographing device 101 receives the image file 251 having a 4-digit extension from the information processing device 160 via the network 140. However, the same applies even when the image file 251 is read via a recording medium such as an SD card without going through the network. Although the DCF shown above specifies that a 3-digit extension is used, it is common that a file system that stores a DCF format file can store a 4-digit extension. That is, the image file 251 having a 4-digit extension stored in the SD card may be configured to be saved as an image file having a 3-digit extension in a DCF-compliant directory structure. ..

As described above, according to the first embodiment, the image file 251 having a 4-digit extension can be recorded as data having a 3-digit extension. Up to now, the number of digits of the extension has been explained mainly as 3 or 4 digits, but of course it is not limited to these, and it is an extension with other digits such as 2 digits or 5 digits. You may. Further, it is clear that the configuration of the above-described embodiment can be applied even when the number of digits of the extension is limited not as a restriction of the file system but as a restriction of the file storage standard.

<Second Embodiment>
In the second embodiment, an example in which an image file is transmitted from the photographing device 101 to the information processing device 160 will be described, contrary to the above-described first embodiment. That is, this is an example of transmitting an image file having a 3-digit extension to an information processing device 160 having a file system that expects a 4-digit extension. In such a case, of course, you can send the file without changing anything. However, an application that expects a 4-digit extension may not be able to process the file correctly when it receives a file with a 3-digit extension. In the second embodiment, an example of the photographing apparatus 101 that converts a 3-digit extension into a 4-digit extension will be described.

FIG. 4 is a flowchart showing a process in which the photographing apparatus 101 converts an image file recorded with a 3-digit extension into a 4-digit extension and transmits the image file. First, the CPU 118 selects the image file 451 to be transmitted from, for example, the recording memory 117 (S401). The file to be transmitted may be selected using a predetermined user interface, or may be automatically selected depending on conditions such as the latest image data. It is assumed that the image file 451 is recorded in the DCF format as a file having a three-digit extension. In the following, an image file will be illustrated as a file to be saved, but the present invention is not limited to this, and other data files may be used.

Next, the CPU 118 identifies an external device to which the image file is transmitted (S402), and then specifies the file system to which the image file is transmitted (S403). In the present embodiment, the information processing device 160 is specified as the transmission destination. If the destination file system specified in S403 does not expect a 4-digit file (NO in S404), the CPU 118 sends the file as is (with a 3-digit extension) (S407). On the other hand, when the destination file system allows or expects a 4-digit file (YES in S404), the CPU 118 refers to the conversion table 300 (S405). The conversion table 300 is shown in FIG. 3, for example. The CPU 118 converts the image file 451 to be transmitted using the conversion table 300 into a 4-digit extension (S406), and transmits the file to the information processing device 160 (S407). After that, this process ends.

Here, the conversion table of FIG. 3 described in the first embodiment will be described again. In the first embodiment, the four-digit extension is converted to three digits by referring to the conversion table, but in the second embodiment, for example, the extension of the file having the three-digit extension recorded by DCF is four digits. Is changed to. For example, when the extension of the image file 451 to be transmitted is ".hef", the CPU 118 refers to line 311 of the conversion table 300 and extends the extension to ".heif" recorded in the original extension 301. To convert. Alternatively, when the CPU 118 has the attribute of "id2" on the file system in which the image file 451 to be transmitted is stored, the CPU 118 refers to the line 312 of the conversion table 300 and adds the extension of the image file 451. Convert to ".heic". Such conversion can be easily performed by referring to the conversion table 300.

On the other hand, when the extension of the image file 451 is ".hex", since the two lines 313 and 314 of the conversion table 300 correspond to each other, it cannot be uniquely determined even if the original extension 301 is referred to from the conversion table 300. .. Even in such a case, the determination can be made by referring to the ID 303 or the like recorded in the file system attribute or the like. Alternatively, the extension can be converted by referring to the conversion information described in the first embodiment. For example, in the attribute information of the image file 451 when the 4-digit extension before conversion is recorded as a character string, the 4-digit extension can be obtained by referring to this. Further, for example, when a text file recording the original extension 301 is associated with the image file 451, a 4-digit extension can be obtained by referring to the text file.

Alternatively, it is possible to read and judge the contents of the image file 451 to be transmitted. For example, as described in the first embodiment, the IFF can determine the file structure by brand or the like. When the extension of the image file 451 to be transmitted is a specific one such as ".hex", the CPU 118 determines that the image file 451 is an IFF file and analyzes the image file 451. The CPU 118 can determine a 4-digit extension from the brand data of the image file 451. Alternatively, instead of referring to the brand data, the CPU 118 may analyze the configuration of the image file 451 in detail to determine its extension.

As described above, according to the second embodiment, in the photographing apparatus 101, a file recorded with a three-digit extension can be converted into a file with a four-digit extension and transmitted to the information processing apparatus 160. It will be possible. In the second embodiment, the conversion information for restoring the immediately preceding extension (in the above example, the information for restoring the three-digit extension) can be provided to the information processing device 160 of the transmission destination. You may.

<Third Embodiment>
In the first embodiment, an example has been described in which the information processing device 160 transmits an image file having a 4-digit extension to a photographing device 101 that expects a 3-digit extension. In the first embodiment, when an image file having a 4-digit extension is transmitted from the information processing device 160, the photographing device 101 converts the extension of the image file into a 3-digit extension. In the third embodiment, an example of a configuration in which the information processing device 160 converts a 4-digit extension into a 3-digit extension and transmits an image file to the photographing device 101 will be described.

FIG. 5 is a flowchart showing an image file transmission process by the information processing device 160. In the transmission process of the third embodiment, the information processing device 160 has a three-digit extension so that the photographing device 101, which expects a file with a three-digit extension, can receive an image file having a four-digit extension. Convert and send the image file.

The CPU 161 selects an image file 551 to be transmitted according to a user operation to the operation unit 166 (S501). This image file 551 has a 4-digit extension. When the user specifies the photographing device 101 of the other party to whom the image file 551 is to be transmitted from the operation unit 166, the CPU 161 establishes communication between the information processing device 160 and the photographing device 101 (S502). The execution order of the processes of S501 and S502 may be reversed. In addition, various methods are known as means for discovering and connecting devices via the network 140, and any well-known method can be applied to the communication connection of the present embodiment.

Next, the CPU 161 identifies the format of the file system in the photographing device 101 by communicating with the photographing device 101 (S503), and determines whether or not the file system of the photographing device 101 can use the 4-digit extension. (S504). When it is determined that the image file can be used in S504, the CPU 161 registers the image file 551 to be transmitted in the transmission queue (S505). In this case, there is no need to convert the 4-digit extension to the 3-digit extension.

On the other hand, when it is determined in S504 that the file with the 4-digit extension cannot be used, the CPU 161 converts the 4-digit extension of the image file 551 into 3 digits (S506). Then, the CPU 161 registers the image file whose extension has been converted in the transmission queue (S507). Further, the CPU 161 registers the conversion information recording the contents converted from the 4-digit extension to the 3-digit extension in the transmission queue (S508). For example, the conversion information describes that the extension "heif" has been converted to the extension "hef". This conversion information is information that makes it possible to restore the converted extension to the extension before conversion, as in the first embodiment. The information processing device 160 transmits the image file registered in the transmission queue (when S508 is executed, the conversion information file) to the photographing device 101 (S509).

The conversion information can be provided as a text file as described in the first embodiment. Alternatively, as described in the first embodiment, the conversion information may be embedded in the image file to be transmitted. By doing so, it is not necessary to separately handle the conversion information as an independent file (so-called metadata file), and the processing is simplified. In this case, step S508 for registering the conversion information in the transmission queue can be omitted.

Here, a little further explanation will be added about the conversion information. The conversion information is, for example, information obtained by recording the original extension or the entire original file name as it is. More specifically, when the original extension is ".heif" and this is converted to ".hef", ".heif" is recorded as conversion information. Alternatively, as described above with reference to FIG. 3, an ID indicating a conversion pattern (in this case, “id1”) may be recorded as conversion information. By embedding such conversion information in an image file to be transmitted, or recording and transmitting it as a metadata file, it is possible to determine that the destination photographing device 101 is a file having a 4-digit extension. Become.

As described with reference to FIG. 3 in the first embodiment, it is obvious that, for example, it is possible to change two types of four-character extensions to one type of three-character extension. For example, even if the ".heim" and ".heix" files are equally converted to ".hex", the original extension is recorded in the conversion information. The file can be correctly identified.

As described above, according to the third embodiment, it is possible to convert a file recorded with a 4-digit extension into a 3-digit extension and transmit the file.

<Fourth Embodiment>
Here, a configuration will be described in which the information processing apparatus 160 receives an image file having a three-digit extension recorded in the photographing apparatus 101. FIG. 6 is a flowchart showing a processing flow from receiving an image file having a 3-digit extension from the photographing device 101 to storing it as an image file having a 4-digit extension in, for example, the auxiliary storage device 164. is there. As described above, the description of the process of establishing communication will be omitted.

The CPU 161 of the information processing apparatus 160 acquires an image file 651 having a three-digit extension from the network 140 or the memory card (S601). Next, the CPU 161 acquires the conversion information (S602). As shown above, the conversion information may be a metadata file (or a text file) or may be embedded in the acquired image file. Next, the CPU 161 acquires a 4-digit extension from the conversion information (S603). Next, the CPU 161 replaces the extension of the image file 651 with the acquired 4-digit extension to obtain an image file having the 4-digit extension (S604). Then, the CPU 161 records an image file having a 4-digit extension in the auxiliary storage device 164 (S605).

In step S603 of acquiring the four-digit extension, the CPU 161 may acquire the extension directly recorded in the conversion information, or as described with reference to FIG. 3 in the first embodiment, the conversion table 300. The extension may be obtained from the ID. If the conversion information cannot be obtained, or if the conversion information does not contain appropriate extension information, the CPU 161 uses the brand information recorded inside the image file to determine the extension. Is also good. The brand information is also as described in the first embodiment.

In addition, it may be possible to obtain information equivalent to brand information by analyzing the file structure. Specifically, it is a judgment based on a difference in structure such as whether or not a moving image is included. Further, when the extension is not found in the conversion information, the extension is acquired by combining a plurality of methods such as referring to the ID 303 of the conversion table 300 and viewing the brand information when the ID is not included. You may. Further, in step S602 of acquiring the conversion information, the CPU 161 may acquire the conversion information at the same time as the image file, or may separately perform communication to request the conversion information from the photographing device 101.

By the method described above, the CPU 161 can acquire a file recorded with a three-digit extension and record it as a file with a four-digit extension.

By the way, although it is described that a file recorded with a 3-digit extension is recorded as a file with a 4-digit extension, it is not always necessary to convert the file into a file with a 4-digit extension. By recording with the 3-digit extension, it is possible for the photographing device 101 and the information processing device 160 to share the same file name, and it is more convenient for the user to record with the 3-digit extension. It can be expensive. That is, when the information processing device 160 converts a file recorded with a 3-digit extension into a file with a 4-digit extension, the information processing device 160 asks the user whether or not to convert the file into a file with a 4-digit extension. A user interface for asking may be provided.

FIG. 7 is an example of such a user interface. Here, for example, when the user selects not to convert (button 701), the file may be recorded with the extension kept at 3 digits. Alternatively, for example, a check box 702 may be used to set in advance whether or not to execute the extension conversion.

Regardless of this embodiment, the extension change history may be presented in the user interface. For example, the conversion information shown in the third embodiment includes information regarding the change of the extension. For example, by recording the date and time when the extension was changed in this conversion information, it is possible to show the user when and how the extension was changed. For a file whose extension has been changed many times, the past history may be displayed over time, or only the latest change may be displayed. By doing so, the user can know that the change in the number of digits of the extension has been executed, and can determine whether or not to execute the change.

<Fifth Embodiment>
In the first embodiment, as an example in which the photographing apparatus 101 having a file system with a three-digit extension receives an image file with a four-digit extension, processing when one file contains one image has been described. .. In the fifth embodiment, an embodiment in which one file processes a file containing a plurality of images will be described.

IFF is designed so that a plurality of images can be stored in one file. Other such file formats include the multi-picture format (CIPA DC-007). In the fifth embodiment, a configuration for storing individual images included in the file having the 4-digit extension for the photographing apparatus 101 that cannot store the IFF file having the 4-digit extension will be described. For example, when four JPEG images are stored in one image file, these JPEG images are stored as independent files in a DCF format folder.

Specifically, in step S203, the CPU 118 executes the following process instead of the process of converting the extension into three digits described in the first embodiment. That is, the CPU 118 analyzes the file, extracts individual JPEG images included in the file, and determines whether the extracted JPEG image can be output as an image file having a three-digit extension. When it is determined that the output is possible, the CPU 118 outputs and holds each JPEG image as an image file having a three-digit extension. By doing so, the photographing apparatus 101 having a file system with a 3-digit extension can receive an image file with a 4-digit extension without converting the extension.

At this time, the file name (main body name + extension) of the original file is retained as the conversion information. By referring to this conversion information, the CPU 118 can collect image files having the same original file name. That is, the CPU 118 generates a single image file (for example, IFF) having a 4-digit extension from a single or a plurality of image files having a 3-digit extension obtained from the same image file, and provides information. It can be transmitted to the processing device 160.

<Other Embodiments>
Although examples of embodiments have been described in detail above, the present invention can take embodiments as, for example, a system, an apparatus, a method, a program, a recording medium (storage medium), or the like. Specifically, it may be applied to a system composed of a plurality of devices (for example, a host information processing device, an interface device, a photographing device, a web application, etc.), or it may be applied to a device composed of one device. You may.

The present invention supplies a program that realizes one or more functions of the above-described embodiment to a system or device via a network or storage medium, and one or more processors in the information processing device of the system or device can program the program. It can also be realized by the process of reading and executing. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

The invention is not limited to the above embodiments, and various modifications and modifications can be made without departing from the spirit and scope of the invention. Therefore, a claim is attached to make the scope of the invention public.

101: Imaging device, 111: Lens, 112: Optical sensor, 113: A / D converter, 114: Image signal processing circuit, 115: Compression coding circuit, 116: Communication circuit, 117: Recording memory, 118: CPU, 119 : ROM, 120: RAM, 140: network, 160: information processing device

Claims (23)

An acquisition method for acquiring the target file to be saved or transmitted, and
A conversion means for converting the first extension attached to the target file acquired by the acquisition means into a second extension different from the first extension, and
An information processing apparatus comprising: an association means for associating conversion information for restoring the first extension with the target file whose extension is converted to the second extension. The conversion means according to claim 1, wherein the conversion means converts the first extension into the second extension by referring to a conversion table in which combinations of extensions before and after the conversion are registered. Information processing device. The conversion table contains a conversion identifier unique to each combination of extensions before and after conversion.
The information processing apparatus according to claim 2, wherein the conversion information includes a conversion identifier corresponding to the conversion from the first extension to the second extension. The information processing device according to claim 1 or 2, wherein the conversion information is a character string representing the first extension. The information processing apparatus according to any one of claims 1 to 4, wherein the associating means includes the conversion information as a part of the attribute information of the target file. The information processing apparatus according to any one of claims 1 to 4, wherein the associating means associates a text file containing the conversion information with the target file. The information processing apparatus according to claim 6, wherein the associating means associates the target file with the text file by making the main body name of the file name the same. The information processing apparatus according to claim 6, wherein the associating means holds a correspondence between the target file and the text file as a part of attribute information of a file system that stores the target file. The information processing device according to any one of claims 1 to 4, wherein the associating means records the conversion information in the brand area of the target file. Any of claims 1 to 9, further comprising a restoring means for restoring the extension of the target file from the second extension to the first extension by referring to the conversion information. The information processing device according to item 1. A transmission means for transmitting the target file to the file system of the external device is provided.
10. The restoration means is characterized in that, when the file system of the external device does not correspond to the second extension, the extension of the target file is restored to the second extension. The information processing device described in. A plurality of files possessed by the first file are extracted from the first file having the first extension in the file name, and the plurality of files are given a file name including the second extension to each of the plurality of files. Further equipped with extraction means to retain
The information processing apparatus according to claim 1, wherein the associating means associates conversion information including a file name of the first file with each of the plurality of files. The information processing apparatus according to claim 12, further comprising a generation means for generating the first file from a plurality of files associated with conversion information including a file name of the first file. An acquisition method for acquiring the target file to be transmitted, and
The first extension attached to the target file acquired by the acquisition means is different from the first extension by referring to the conversion table in which the combination of extensions before and after the conversion is registered. Conversion means to convert to the second extension,
An information processing device including a transmission means for transmitting the target file whose extension is converted to the second extension. An acquisition method for acquiring the target file to be transmitted, and
A determination means for determining whether or not the destination file system can use the first extension attached to the target file acquired by the acquisition means, and
When the determination means determines that the first extension cannot be used, the conversion means for converting the first extension into a second extension that can be used by the file system, and
A generation means for generating conversion information for restoring the first extension, and
An information processing device including a target file whose extension has been converted to the second extension and a transmission means for transmitting the conversion information to the destination file system. The generation means records the conversion information as a part of the attribute information possessed by the target file, and records the conversion information.
The information processing device according to claim 15, wherein the transmission means transmits the target file in which the conversion information is recorded. The generation means generates the conversion information as a file different from the target file.
The information processing device according to claim 15, wherein the transmission means transmits the target file and the other file. The target file with the first extension added to the file name and the conversion information for converting the first extension associated with the target file to the second extension are received from the external device. Receiving means and
A conversion means for converting the first extension attached to the target file received by the receiving means to the second extension using the conversion information.
An information processing device comprising: a storage means for storing the target file whose extension has been converted to the second extension. The acquisition process to acquire the target file to be sent, and
The first extension attached to the target file acquired by the acquisition step is different from the first extension by referring to the conversion table in which the combination of extensions before and after the conversion is registered. The conversion process to convert to the second extension,
A control method for an information processing device, which comprises a transmission step of transmitting the target file whose extension is converted to the second extension. The acquisition process to acquire the target file to be saved or transmitted, and
A conversion step of converting the first extension attached to the target file acquired by the acquisition step to a second extension different from the first extension, and
A control method for an information processing device, which comprises an association step of associating conversion information for restoring the first extension with the target file. The acquisition process to acquire the target file to be sent, and
A determination step of determining whether or not the destination file system can use the first extension attached to the target file acquired by the acquisition step, and a determination step of determining whether or not the first extension attached to the target file can be used.
When it is determined by the determination step that the first extension cannot be used, a conversion step of converting the first extension into a second extension that can be used by the file system, and a conversion step.
Generation step of generating conversion information for restoring the first extension,
A control method for an information processing apparatus, comprising: a transmission step of transmitting the target file whose extension is converted to the second extension and the conversion information to the destination file system. The target file with the first extension added to the file name and the conversion information for converting the first extension associated with the target file to the second extension are received from the external device. Receiving process and
A conversion step of converting the first extension attached to the target file received by the receiving step to the second extension using the conversion information, and a conversion step.
A control method for an information processing device, which comprises a storage step of storing the target file whose extension is converted to the second extension in a memory. A program for causing a computer to function as each means of the information processing apparatus according to any one of claims 1 to 18.

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