JP2006115086A - Digital camera with function for erasing backup image file collectively - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance convenience of a user for a digital camera capable of inserting a plurality of recording media by deleting an image recorded by backup through simple operation when a photographed image file is stored in a main recording medium and a backup recording medium. <P>SOLUTION: In photography performing backup, backup images are stored to be managed as a group and then each group of backup images is displayed to a user so that the images can be deleted collectively in units of group thus enhancing user operability of a digital camera. Furthermore, image sorting work of user is facilitated by displaying the features of a group (size, data, existence of backup of main recording medium) along with the group. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a digital camera, and more particularly to improvement in operability when an image file taken for backup purposes is deleted with a simple operation.

  In recent years, digital cameras capable of electronically processing captured image information and storing the image information in a recording medium such as a memory card have become widespread. In such a digital camera, when the recording medium on which the image is recorded is broken, there is a risk that the image that has been shot and recorded cannot be recovered. The recording medium has become larger due to technological development such as high integration of flash memory and development of a magnetic card device of the memory card size, and since a large amount of images can be held with one recording medium, the memory card has been broken. The risk of cases tends to increase. Therefore, a digital camera capable of inserting a plurality of recording media has been devised so that one image can be recorded (backup) on a plurality of memory cards as well as a single memory card.

  When a single image is recorded on multiple recording media in a digital camera with multiple slots, the image recorded for backup purposes is not required after the user has confirmed that the desired image is safely recorded. become. However, when a necessary image as well as an image recorded for the purpose of backup is recorded on the recording medium, in a conventional digital camera, an image recorded for the purpose of backup with respect to the image in the recording medium In order to distinguish from an image that is not so, it was necessary for the user to actually confirm the image.

As a conventional technology that makes it easy to delete multiple related image files, when one of the image files taken in continuous shooting, bracket shooting (step-exposure shooting), panoramic shooting, etc. is viewed and deleted , And a related image file are deleted (see, for example, Patent Document 1).
JP 2002-44601 A

  In recent years, the trend of increasing the capacity of recording media has been remarkable. As this tendency progresses, the number of images recorded on one recording medium becomes enormous, and it is a cumbersome task for the user to check the images one by one and delete the images for backup purposes. However, even in the electronic camera device described in Patent Document 1, it is necessary for the user to identify and delete the image displayed on the digital camera.

  In addition, in order to ensure the safety of images recorded with a recording medium that can be used with a digital camera, the user must store the large-capacity recording medium attached to a personal computer with higher safety. Many images are saved together. Therefore, when deleting an image from a memory card used for backup, a backup image file on a specific recording medium becomes unnecessary, and it is desirable to delete only a backup image file image for a specific recording medium from the memory card. .

  In view of the above circumstances, an object of the present invention is to enhance the convenience of a user to a digital camera by deleting an image recorded for the purpose of backup by a simple operation.

  In order to achieve the above object, the present invention is configured as follows.

  [1] First, at least two card slots for storing a recording medium, at least two card input / output units for inputting / outputting data to / from the recording medium inserted in the card slot, and the recording medium Recording medium selection means for selecting at least one first recording medium mainly used and at least one second recording medium used as a backup, and an object image projected by the photographing lens is converted into an electric signal by the image sensor. And an imaging unit that outputs an image as a video signal and stores the captured image as an image file in at least two recording media, and a group that stores the image file captured on the second recording medium. Image classification means for classifying, display means for displaying at least one of the groups, and specifying at least one of the groups Thereby comprising a designating means, all the image files belonging to the group and the group specified by said specifying means, characterized in that it has a deletion unit that deletes from the recording medium.

  In the present invention, a predetermined process of recording an image recorded for backup purposes on a recording medium so that it can be automatically identified as a group, displaying the group, and erasing the image in the group according to a user instruction is performed. Apply.

  [2] Second, the present invention provides a file information acquisition means for acquiring file information from an image file belonging to the group and a file acquired from the file information acquisition means in the configuration of the above item [1]. File information totaling means for totaling information and group information display means for displaying the group information totaled by the file information totaling means together with the group.

  In the present invention, a predetermined process for collecting and displaying the characteristics of the shooting files in the group together with the group is performed. For example, the oldest date and the latest date in the group are aggregated and displayed for the date, and the total of the file sizes in the group is aggregated and displayed for the file size.

  [3] Third, the present invention provides a recording medium identification information acquisition means for acquiring recording medium identification information for identifying a recording medium from the recording medium in the configurations of the items [1] and [2], A recording medium identification information holding unit that holds a set of a group and the recording medium identification information, and a recording medium identification information display unit that displays the group together with the group.

  In the present invention, a set of recording medium identification information and a group is held or recorded on the recording medium, and the group backed up by the currently inserted recording medium is displayed to the user.

  As described above, according to the present invention, [1] in a digital camera having a plurality of slots, when one image is recorded on a plurality of recording media for the purpose of backup, the safety of the image is guaranteed. It is possible to avoid performing the deletion work after checking the image. When an image that is not the purpose of backup and an image that is the purpose of backup are mixed in one recording medium, the deletion operation can be easily performed by managing the backup group according to the present invention.

  [2] Also, by displaying the group characteristics such as date and size, which are aggregated from the image files for the backup group, the user can recognize the characteristics of the backup group, and the user's digital camera Convenience can be improved.

  [3] When a plurality of recording media are backed up on one recording medium, and the image safety is guaranteed for each recording medium, a set of backup group and recording medium identification information is managed. By doing so, the deletion work can be easily performed by managing the backup group more.

  As described above, according to the present invention, it is possible to improve the convenience for the user's digital camera when performing an erasing operation of an image taken for the purpose of backup.

Example 1
Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

  In FIG. 2, reference numeral 100 denotes a camera body having a function of forming a subject image and capturing the image. A power supply 110 supplies power to each circuit in the camera body. 121 and 122 are card slots into which a removable card 123 can be inserted, and as a result of insertion, the card input / output unit 1 (119) and the card input / output unit 2 (120) are electrically connected to each other. .

  Reference numerals 101 to 103 are imaging optical systems for forming a subject image, 101 is a focusing lens that performs focus adjustment by advancing and retreating in the optical axis direction, and 102 is a zooming lens that similarly performs zooming by advancing and retreating in the optical axis direction. Reference numeral 103 denotes an aperture that adjusts the amount of light to the image sensor.

  Reference numerals 104 to 108 denote photoelectric conversion systems that digitize subject images formed by the imaging optical system. Reference numeral 104 denotes an image sensor, which is a light source conversion unit composed of a CCD, a CMOS, or the like, and photoelectrically converts the subject image formed by the imaging optical systems 101 to 103 and outputs an image signal. A pre-processing circuit 105 includes a CDS (correlated double sampling), an AGC (auto gain control) circuit, and the like, and performs control for the image sensor to output an accurate image signal. An A / D converter 106 converts the analog image signal output from the preprocessing circuit 105 into digital data. An image signal processing IC 107 performs γ correction, AWB (auto white balance), etc. on the digitized image signal, and is caused by non-linearity of the image density due to the characteristics of the image sensor 104 and the light source. Correct image color bias. Reference numeral 108 denotes a frame memory, which is a buffer memory that temporarily stores raw data of the image sensor corrected by 104 to 107.

  Reference numeral 109 denotes a CPU, which includes a power source 110, a nonvolatile memory 111, a compression unit 112, a RAM memory 113, an EVF control 114, a main switch 116, SW1 (117), SW2 (118), a cross button (124 to 127), and a setting button 128. The card input / output unit 1 (119) and the card input / output unit 2 (120) are connected to control each other. The recording medium identification information acquisition means according to claim 5 corresponds to the card input / output unit 1 (119) and the card input / output unit 2 (120) being connected and controlling each of them. The CPU 109 sends a clock signal for controlling the image signal reading of the image sensor 104 and controls the operation timing of each of the elements 104 to 108. The nonvolatile memory 111 is composed of an EEPROM or the like, and does not lose recorded data even when the power supply 110 is turned off. The compression unit 112 is a compression circuit that compresses the acquired image signal to reduce the image file size. The RAM memory 113 temporarily stores data when the CPU 109 performs various processes. The EVF control 114 drives and controls the EVF 115 configured by a liquid crystal element or the like. When the main switch 116 is turned on, the CPU 109 permits execution of a predetermined program related to shooting. 117 (SW1) and 118 (SW2) are turned on when the first and second strokes of the release button of the camera are pressed. The cross buttons (124 to 127) are turned on when the upper (124), lower (126), left (125), and right (127) buttons are pressed, and the setting button 128 is also turned on when the button is pressed. The card input / output unit 1 (119) can transmit a command to the card 123 inserted into the card slot 1 (121), and can read / write the data as a result to / from the memory card 123. Further, the card input / output unit 2 (120) can also transmit a command to the card 123 inserted into the card slot 2 (122), and as a result, data can be read from and written to the memory card 123. The memory card 123 has a function of recording and storing a compressed image signal, and a semiconductor memory such as a flash memory, a magnetic disk, an optical disk, or the like is used. The above description in this embodiment corresponds to the photographing means of claim 1.

  In this embodiment, two memory cards 123 can be inserted, one of which is a main memory card and the other is a backup memory card. The user can designate the main memory card and the backup memory card from the inserted memory card. FIG. 3 shows a flowchart for selecting the main memory card.

  In step # 101, it is inspected that the memory card 123 is inserted into the card slot 1 (121) and the card slot 2 (122), and if the memory card is inserted, 1 is set. If not, 0 is set. For each of the card slot 1 (121) and the card slot 2 (122), the data is stored in an area on the nonvolatile memory 111 or the RAM memory 113. If no memory card is inserted in both the card slot 1 (121) and the card slot 2 (122), the selection of the main memory card is finished in step # 106, and either the card slot 1 (121) or the card slot 2 is selected. If a crab memory card is inserted, step # 102 is performed. In step # 102, the result of presence / absence of the memory card stored in the area on the nonvolatile memory 111 or the RAM memory 113 in step # 101 is displayed on the EVF 115, and step # 103 is performed. In step # 103, the user selects card slot or cancel from the result displayed on the EVF 115 in step # 102, and performs step # 104. FIG. 4 is a display example in step # 102. The highlighted character is the currently selected card slot. If cancel is selected, the cancel character is similarly reversed. If the upper button 124 of the cross button is pressed, the currently selected card slot or the memory card one higher than the cancel is selected. If the top 124 of the cross button is pressed, nothing happens in the case of the top card slot. If the lower button 126 of the cross button is pressed, the card slot one below the currently selected card slot or cancel is selected. Even if the lower button 126 of the cross button is pressed, nothing happens if cancel is selected. When the user further presses the setting button 128, selection or cancellation of the currently selected card slot is determined as a request designated by the user. However, it cannot be selected if no memory card is inserted in the selected card slot. In step # 104, if cancel is selected in step # 103, the selection of the main memory card is terminated in step # 106. If a card slot is selected, step # 105 is performed. In step # 105, the memory card inserted in the card slot selected in step # 104 is stored as a main memory card in an area on the nonvolatile memory 111 or the RAM memory 113.

  FIG. 5 shows a flowchart for selecting a backup memory card. In step # 201, it is inspected that the memory card 123 is inserted into the card slot 1 (121) and the card slot 2 (122), and if the memory card is inserted, 1 is set. If not, 0 is set. For each of the card slot 1 (121) and the card slot 2 (122), the data is stored in an area on the nonvolatile memory 111 or the RAM memory 113. If no memory card is inserted in both the card slot 1 (121) and the card slot 2 (122), the selection of the main memory card is terminated in step # 206, and either the card slot 1 (121) or the card slot 2 is selected. If a crab memory card is inserted, step # 202 is performed. In step # 202, the presence / absence result of the memory card stored in the area on the nonvolatile memory 111 or the RAM memory 113 in step # 201 is displayed on the EVF 115, and step # 203 is performed. In step # 203, the user selects a card slot or cancellation from the result displayed on the EVF 115 in step # 202, and performs step # 204. The display and operation examples are the same as those described in FIG. In step # 204, if cancel is selected in step # 203, the selection of the main memory card is terminated in step # 206. If a card slot is selected, step # 205 is performed. In step # 205, the memory card inserted in the card slot selected in step # 204 is stored as a main memory card in an area on the nonvolatile memory 111 or the RAM memory 113. The recording medium selection unit according to the first aspect corresponds to the flowchart processing of FIGS. 3 and 5 of the present embodiment described above.

  In addition, backup shooting and normal shooting can be designated as shooting types. Here, backup shooting refers to saving an image created by one shooting on both memory cards, and normal shooting refers to an image created by one shooting on one memory card 123. To save. However, backup shooting can be selected only when the aforementioned main memory card and backup memory card are selected by different memory cards. In the following description, it is assumed that backup shooting is designated, and an operation of deleting unnecessary backup images at once after the camera performs backup shooting will be described. First, FIG. 6 shows a flowchart for performing backup shooting. In step # 301, the free space of the main memory card is inspected. If there is a capacity required for shooting, step # 302 is performed. If there is no capacity required for shooting, backup shooting is terminated in step # 308. In step # 302, the free space of the backup memory card is inspected. If there is a capacity necessary for photographing, step # 303 is performed. If there is no capacity necessary for photographing, backup photographing is terminated in step # 308. In step # 303, the image data placed in the frame buffer is compressed using a compression technique such as Jpeg, and shooting data is added to generate file data. Then, step # 304 is performed. In step # 304, if there is a backup directory name in the area prepared in advance in the nonvolatile memory 111 or the RAM memory 113, step # 306 is executed. If not (if it is 0), step # 305 is executed. Do. Here, an area for storing a backup directory name on the nonvolatile memory 111 or the RAM memory 113 prepared in advance is set to 0 as an initial value. It is also initialized to 0 when there is normal shooting. Therefore, 0 indicates that the previous shooting was the normal shooting or the initial state. In step # 305, a directory name for recording an image for backup is determined. In order to make the directory name unique so that it does not become the same as the existing directory, the existing directory name is examined and determined. In this example, if the backup directory name is 8 characters that is a combination of 3 characters and 5 characters “BAKUP”, it will be the largest 3-digit number among the 3-digit numbers used in the existing backup directory name. The directory name is determined using the number added with 1 as the three-digit number of the new backup directory name. For example, if the backup memory card has a directory structure as shown in FIG. 7, the largest number is 503, so “504BAKUP” is saved as a new backup directory name in an area on the nonvolatile memory 111 or the RAM memory 113. To do. In step # 306, the photographed image is recorded on the main memory card with a unique file name, and step # 307 is performed. In step # 307, the photographed image is recorded on the backup memory card with a unique file name, and backup photographing is terminated in step # 308. When recording in the backup memory card in step # 307, the recording is performed in the directory determined in step # 305. Here, steps # 306 and # 307 may be interchanged, and each of them may operate asynchronously without waiting for recording completion, and may wait for recording completion. As described above, every backup shooting automatically classifies image files shot for backup purposes by collecting folders for storing image files.

  When the backup directory name is stored in the RAM memory 113, the backup directory name disappears when the camera is turned off. However, when stored in the nonvolatile memory 111, the backup directory name does not disappear even when the camera is turned off. Therefore, when stored in the RAM memory 113, the backup shooting period is from when the user starts backup shooting until normal shooting is performed or until the camera is turned off. On the other hand, when stored in the nonvolatile memory 111, the backup shooting period is from when the user starts backup shooting until normal shooting is performed. The image classification means according to claim 1 corresponds to the flowchart of FIG. 6 described above.

  Next, referring to FIG. 8, the backup batch erasing operation will be described with reference to a flowchart. First, in step # 401 to be described later, the backup directory in the backup memory card is inspected, the inspection result is stored in the area of the nonvolatile memory 111 or the RAM memory 113, and step # 402 to be described later is performed. In step # 402, which will be described later, a group in the backup memory that can be collectively erased is displayed to the user, and step # 403 is performed. Here, the group in the backup memory that can be erased at once is a group of backup directories. For example, if a “500BAKUP” directory, a “501BAKUP” directory, a “503BAKUP” directory, and a “504BAKUP” directory exist, a “500BAKUP” group, a “501BAKUP” group, a “503BAKUP” group, and a “504BAKUP” group exist. FIG. 9 shows an example in which groups in the backup memory that can be erased at once are displayed on the EVF 115 of the camera. In step # 403, the user waits for the designation or cancellation of the backup group that the user wants to delete all at once. In FIG. 9, the highlighted character is the currently selected group. If cancel is selected, the cancel character is similarly reversed. If the upper part 124 of the cross button is pressed, the currently selected group or the group immediately above the cancel is selected. Even if the top 124 of the cross button is pressed, nothing happens in the case of the top group. If the lower button 126 of the cross button is pressed, a group one level lower than the currently selected group or cancel is selected. Even if the lower button 126 of the cross button is pressed, nothing happens if cancel is selected. Further, when the user presses the setting button 128, the batch deletion of the currently selected group or the cancellation of the batch deletion selection screen is determined as a request designated by the user. In step # 404, if the request specified by the user is cancelled, the backup batch erasure is terminated in step # 406, and if the request specified by the user is a backup group, step # 405 is performed. In step # 405, images related to the backup group designated by the user are erased collectively. Here, you can delete the backup directory. Then, the deleted backup directory is deleted from the list of backup directories on the area of the nonvolatile memory 111 or the RAM memory 113, and Step # 402 described later is performed. The erasing means described in claim 1 corresponds to step # 405 in FIG. 8 described above. The designation means described in claim 1 corresponds to step # 403 in FIG. 8 in the above description.

  The backup directory search routine in step # 401 will be described with reference to FIG. In step # 501, directory management information of a directory managing a plurality of directories for recording images is acquired, and step # 502 is performed. FIG. 11 shows directory management information assuming that a new backup directory “504BAKUP” has been created in the directory structure shown in FIG. In step # 502, one directory name is extracted from the acquired directory management information, and step # 503 is performed. In step # 503, if the directory name can be extracted in step # 502, step # 504 is performed. If not, the directory search routine is terminated in step # 506. In step # 504, if the directory name extracted in step # 502 is a backup directory, step # 505 is performed, and if not, step # 502 is performed. In step # 505, the backup directory name is stored as a list in the nonvolatile memory 111 or the RAM memory 113. From the directory information in FIG. 7, a backup directory list can be created as shown in FIG.

  The backup directory display routine in step # 402 will be described with reference to FIG. In step # 601, the top directory name in the list of results of the backup directory search routine in step # 402 is acquired, and step # 602 is performed. In step # 602, if the directory name can be acquired in the preprocessing, step # 603 is performed. If not acquired, the cancel character is displayed on the EVF 115, and the backup directory display routine is terminated in step # 605. In step # 603, the acquired directory name is displayed on the EVF 115, and step # 604 is performed. In step # 604, the next directory name is obtained from the list of backup directory search routine results, and step # 602 is performed. When the result of the backup directory search routine of FIG. 12 is displayed on the EVF 115 in this routine, the result is as shown in FIG. The display means described in claim 1 corresponds to step # 401 and step # 402 of FIG. 8 and the flowcharts of FIGS.

  According to the above embodiment, after performing shooting for recording on a plurality of memory cards 123 for the purpose of backup and confirming that the image generated as a result of the shooting is safely recorded, Images recorded for backup purposes can be deleted by operation. In particular, when a backup image is stored on the memory card 123 that contains an image that is not for backup purposes, or when normal shooting is performed after backup, the normal shooting image is deleted without complicated operations. Only the backup image can be erased without doing so. Therefore, convenience for the user's digital camera can be improved.

(Example 2)
In the second embodiment, in addition to the first embodiment, the backup group information is provided to the user. FIG. 15 shows a flowchart for displaying groups in the backup memory that can be collectively erased according to the second embodiment. In step # 701, the first directory name in the list, which is the result of the backup directory search routine in step # 402, is acquired, and step # 702 is performed. In step # 702, if the directory name can be acquired in the preprocessing, step # 703 is executed. If not acquired, the cancel character is displayed on the EVF 115, and the backup directory display routine is ended in step # 706. In Step # 703, the acquired directory name is displayed on the EVF 115, and Step # 704 described later is performed. In step # 704, which will be described later, the image file information in the acquired directory is totaled, the properties of the backup directory are displayed, and step # 705 is performed. In step # 705, the next directory name is obtained from the list of backup directory search routine results, and step # 702 is performed. When the result of the backup directory search routine of FIG. 12 is displayed on the EVF 115 in this routine, the result is as shown in FIG. The file information acquisition means according to claim 2 corresponds to step # 701 in FIG. The group information display means described in claim 2 corresponds to steps # 702 and # 703 in FIG. 15 and step # 809 in FIG.

  The backup file totaling display routine in step # 704 will be described with reference to FIG. In step # 801, an area for summing up the total file sizes in the backup file is held in the RAM memory 113 and initialized with 0. Further, an area for counting the oldest date and the newest date is stored in the RAM memory 113, initialized with 0, and step # 802 is performed. In step # 802, file management information in the backup file is acquired, and step # 803 is performed. In step # 803, one file information is extracted from the acquired file management information, and step # 804 is performed. In step # 804, if the file information can be extracted in step # 803, step # 805 is performed. If not, step # 808 is performed. In step # 805, if the file information file extracted in step # 804 is an image file, step # 806 is performed, and if it is not an image file, step # 803 is performed. In step # 806, the file size acquired from the file information is added to the numerical value of the area for summing up the total file size, and held in the same area, and step # 807 is performed. In step # 807, if the stored oldest date is 0, the shooting date acquired from the file information is stored in the stored oldest date and newest date, and step # 803 is performed. Also, if the stored oldest date is not 0, it is compared with the shooting date acquired from the file information, and if it is older than the oldest stored date, the stored oldest date is updated, and step # 803 I do. In addition, if the oldest date held from the file information acquired from the file information is older, the latest date stored is compared with the shooting date acquired from the file information, and the shooting date acquired from the file information is compared. If the date is newer, the latest date stored is updated and step # 803 is performed. The file information tabulating means described in claim 2 corresponds to step # 801 to step # 807 of FIG.

  According to the above-described embodiment, shooting is performed for recording on a plurality of memory cards 123 for the purpose of backup, and after confirming that the image generated as a result of the shooting is safely recorded, the recording is performed for backup purposes. When deleting the recorded image, the user can know the nature of the backup group and can easily determine whether the backup group can be deleted. Therefore, convenience for the user's digital camera can be improved.

(Example 3)
In the third embodiment, in addition to the first and second embodiments, information at the time of backup is stored in the memory card 123 on the backup side as a file. In the backup shooting in the present embodiment, the memory card individual identification information of the main memory card is stored in the backup memory card as a file when the backup directory is created on the backup memory card in step # 305 of the flowchart shown in FIG. The memory card individual identification information refers to information for identifying the card such as the type, manufacturer name, product version, and serial number of the memory card 123. An example is shown in FIG. In FIG. 18, a set of a directory name and memory card identification information is managed in one file. A file of memory card identification information may be stored in each directory. The recording medium identification information holding unit according to claim 5 corresponds to storing the recording medium identification information and the memory card identification information in the memory card.

  Next, in the backup directory display in the present embodiment, when displaying directory information in step # 603 of the flowchart shown in FIG. 13 or flowchart # 703 shown in FIG. 15, the memory paired with the directory is displayed. The card identification information and the memory card identification information of the main memory card are acquired. Then, the two memory card identification information are compared, and if they are the same, the result is displayed. FIG. 1 shows an example of the display result. In FIG. 1, an icon of “same” character is displayed as one of the information for displaying the backup directory of the same identification information as the identification information of the main memory card. Backup directories that do not have the same identification information may be grayed out so that they do not stand out. The recording medium identification information display means according to claim 5 is a combination with the directory when displaying directory information in step # 603 of the flowchart shown in FIG. 13 or flowchart # 703 shown in FIG. This is equivalent to acquiring the memory card identification information and the memory card identification information of the main memory card, and comparing the two memory card identification information and displaying the result if they are the same.

  According to the above-described embodiment, shooting is performed for recording on a plurality of memory cards 123 for the purpose of backup, and after confirming that the image generated as a result of the shooting is safely recorded, the recording is performed for backup purposes. When deleting the recorded image, the user can know that the backup group is a backup of the memory card 123 currently used as the main memory card, and can easily determine whether the backup group can be deleted. . Since the user often performs backup of the memory card 123 collectively for each memory card 123, it is convenient if the backup group can be identified for each memory card 123. Therefore, convenience for the user's digital camera can be improved.

Example 1 of backup directory display results. FIG. The flowchart figure of a main memory card selection routine. Main memory card selection display result example. The flowchart figure of a backup memory card selection routine. The flowchart figure of a backup imaging | photography routine. Example of directory structure in backup card memory. The flowchart figure of a backup deletion routine. Example 2 of backup directory display result. The flowchart figure of a backup directory search routine. Directory search result example. Example backup directory search results. Flowchart part 1 of a backup directory display routine. Example 3 of backup directory display result Flowchart part 2 of backup directory display routine. Example 4 of backup directory display result The flowchart figure of a backup file total information display routine. Memory card identification information search result example.

Explanation of symbols

100 Digital camera body
101 Focusing lens
102 Zooming lens
103 Aperture
104 Image sensor
105 CDS / AGC element
106 A / D converter
107 Image signal processor
108 frame memory
109 CPU
110 Power supply
111 Nonvolatile memory
112 Compression unit
113 RAM memory
114 EVF control
115 EVF
116 Main switch
117 SW1
118 SW2
119 Card input / output part 1
120 Card input / output part 2
121 Card slot 1
122 Card slot 2
123 memory card
124 On the arrow pad
125 Arrow pad right
126 Arrow pad down
127 Arrow pad left
128 Settings button

Claims (5)

At least two card slots for storing recording media;
At least two card input / output units for inputting / outputting data to / from the recording medium inserted into the card slot;
Recording medium selection means for selecting at least one first recording medium mainly used among the recording media and at least one second recording medium used as a backup;
A photographing means for converting a subject image projected by a photographing lens into an electric signal by an image sensor, outputting an image as a video signal, and storing the photographed image as an image file in at least two recording media;
An image classification means for classifying the image file into a group when storing the image file captured on the second recording medium;
Display means for displaying at least one of the groups;
Comprising specifying means for specifying at least one of the groups,
A digital camera comprising: a deleting unit that deletes the group specified by the specifying unit and all image files belonging to the group from a recording medium. In the digital camera according to claim 1, file information acquisition means for acquiring file information from an image file belonging to the group;
File information counting means for counting file information acquired from the file information acquiring means;
A digital camera comprising group information display means for displaying group information aggregated by the file information aggregation means together with the group.   3. The digital camera according to claim 2, wherein the file information is a date, and the group information is an oldest date and a latest date.   3. The digital camera according to claim 2, wherein the file information is a file size and the group information is a total of the file sizes. 5. The digital camera according to claim 1, wherein recording medium identification information acquisition means for acquiring recording medium identification information for identifying the recording medium from the recording medium;
Recording medium identification information holding means for holding a set of the group and the recording medium identification information;
A digital camera comprising recording medium identification information display means for displaying together with the group.

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