JP2000148992A - Image display device, image file managing method, and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an image display device which can notify a user of information for taking proper measures against the breakage of an image file if the image file is logically broken. SOLUTION: Through an image file managing process of the image display device, it is decided whether or not a management part 19 and a data part 20 of the image file 18 have a broken part respectively, a display pattern showing an image wherein the broken part of the image file 18 can be specified is set corresponding to the detection result, and the image is displayed on a display 14. The display pattern corresponding to the detection result is selected out of a display pattern 31 when the image file 18 is normal, a display pattern 32 when the data part 20 has a broken part, a display pattern 33 when the management part 19 has a broken part, and a display pattern 34 when the management part 19 and data part 20 have broken parts respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device which stores an image file in a storage means, reads out the image file from the storage means and displays the image file on a display means, an image file management method and a storage medium used for the same.

[0002]

2. Description of the Related Art Conventionally, in an image display apparatus which stores an image file composed of a data management section and an image data section in a storage means, reads out the image file from the storage means and displays the image file on a display means, Is logically destroyed, the user is notified that the logically destroyed image file cannot be handled, and this notification allows the user to logically destroy the image file. You can recognize that.

[0003]

However, in the above-described conventional image display device, when an image file stored in the storage means is logically destroyed, it is determined that the image file has been logically destroyed. Although it is possible to inform the user, it is not possible to inform information about the destroyed image file, such as the file size, the storage date and time,
No proper action can be taken on this corrupted file. For example, it is not possible to determine whether or not it is necessary to re-collect and re-capture the destroyed image file. Therefore, depending on whether the need for a corrupted image file is high or low,
Re-collecting the same image file as the destroyed image file,
Appropriate measures such as re-shooting or destruction are required, but it is not possible to judge whether the necessity of the destroyed image file is high or low. Can't do it.

[0004] An object of the present invention is to provide an image display device and an image file which can notify a user of information for taking appropriate measures against the destruction of the image file when the image file is logically destroyed. A management method and a storage medium are provided.

[0005]

According to the first aspect of the present invention,
An image display device that stores an image file in a storage unit, reads the image file from the storage unit, and displays the image file on a display unit. Display control means for setting a display pattern representing an image capable of specifying a destruction portion of the image file in accordance with a detection result of the detection means, and displaying an image represented by the set display pattern on the display means And characterized in that:

According to a second aspect of the present invention, in the image display device according to the first aspect, the image file includes a data management unit and an image data unit, and the detecting unit performs the data management of the image file. A display pattern representing an image that specifies the case where only the data management unit of the image file has been destroyed, wherein the presence / absence of the destroyed portion is detected for each of the unit and the image data unit; The detecting means includes a display pattern for specifying a case where only the image data portion is destroyed, and a display pattern for specifying a case where the data management portion and the image data portion are respectively destroyed. Selecting a display pattern according to the detection result of (i), and displaying an image represented by the selected display pattern on the display means.

According to a third aspect of the present invention, in the image display device according to the second aspect, the detecting means destroys any one of a plurality of pieces of management information included in the data management section of the image file. A data management unit detecting means for detecting whether or not the image data part has been destroyed; and an image data part detecting means for detecting whether or not the image data part has been destroyed.

According to a fourth aspect of the present invention, in the image display device of the third aspect, a display pattern representing an image capable of specifying the destroyed management information detected by the data management unit detecting means is set. The image processing apparatus further includes a data management unit display control unit that displays an image represented by the set display pattern on the display unit.

The invention according to claim 5 is the invention according to claim 2 or 3.
In the image display device described above, when the detection section detects that the data management section and the image data section are each broken, the data management section of the image file around the image file is extracted. A management information estimating unit for estimating management information of the data management unit of the image file based on management information included in a data management unit of the extracted peripheral image file, and a management information estimated by the management information estimation unit. An estimated image pattern display control means for estimating an image pattern of the image file and displaying the image pattern on the display means.

According to a sixth aspect of the present invention, there is provided an image file management method used in an image display device for storing an image file in a storage means, reading the image file from the storage means and displaying the image file on a display means. Detecting the presence or absence of a destroyed portion that has been logically destroyed,
Setting a display pattern representing an image capable of specifying a destructed portion of the image file in accordance with the detection result, and displaying an image represented by the set display pattern on the display means. And

According to a seventh aspect of the present invention, in the image file management method of the sixth aspect, the image file includes a data management section and an image data section, and the data management section of the image file and the image A display pattern indicating an image that specifies the case where only the data management unit of the image file is destroyed by detecting the presence or absence of the destruction portion for each of the data portions, and only the image data portion is destroyed A display pattern according to the detection result of the detection means is selected from display patterns for specifying a case, and display patterns for specifying a case where the data management unit and the image data unit are respectively destroyed. Then, an image represented by the selected display pattern is displayed on the display means.

According to an eighth aspect of the present invention, in the image file management method according to the seventh aspect, which of the plurality of management information included in the data management unit of the image file has been destroyed. And detecting whether or not the image data portion has been destroyed.

According to a ninth aspect of the present invention, in the image file management method according to the eighth aspect, when the destroyed management information is detected, a display pattern representing an image capable of specifying the management information is set. Displaying an image represented by the set display pattern on the display means.

According to a tenth aspect of the present invention, in the image file management method according to the seventh or eighth aspect, when it is detected that the data management unit and the image data unit are each destroyed, Extracting a data management unit of an image file in the vicinity of the image file, and estimating management information of the data management unit of the image file based on management information included in the data management unit of the extracted peripheral image file; and Estimating an image pattern of the image file based on the management information and displaying the image pattern on the display means.

According to an eleventh aspect of the present invention, a program for constructing an image management system is stored in an image display device which stores an image file in a storage means, reads the image file from the storage means, and displays the image file on a display means. A storage module configured to detect the presence or absence of a logically damaged destruction portion in the image file, and to specify the destruction portion of the image file according to a detection result of the detection module. And a display control module for setting a display pattern representing a desired image and displaying an image represented by the set display pattern on the display means.

According to a twelfth aspect of the present invention, in the storage medium according to the eleventh aspect, the image file includes a data management unit and an image data unit, and the detection module includes the data management unit of the image file. And the presence or absence of the destruction portion for each of the image data portion, the display control module is a display pattern representing an image that specifies the case where only the data management unit of the image file is destroyed, The display pattern for identifying the case where only the image data portion is destroyed, and the display pattern for identifying the case where the data management portion and the image data portion are respectively destroyed are selected from among the display patterns of the detection means. Selecting a display pattern according to the detection result, and displaying an image represented by the selected display pattern on the display means. To.

According to a thirteenth aspect of the present invention, in the storage medium according to the twelfth aspect, the detection module destroys any management information of a plurality of management information included in the data management unit of the image file. And a data management unit detection module for detecting whether or not the image data part is destroyed, and an image data part detection module for detecting whether or not the image data part is destroyed.

According to a fourteenth aspect of the present invention, in the storage medium according to the thirteenth aspect, the program sets a display pattern representing an image capable of specifying the destroyed management information detected by the data management unit detection module. And a data management unit display control means for displaying an image represented by the set display pattern on the display means.

According to a fifteenth aspect of the present invention, in the storage medium according to the twelfth or thirteenth aspect, the program detects that the data management unit and the image data unit have been destroyed by the detection module. Then, the data management unit of the image file around the image file is extracted, and the management information of the data management unit of the image file is estimated based on the management information included in the data management unit of the extracted peripheral image file. A management information estimating module; and an estimated image pattern display control module for estimating an image pattern of the image file based on the management information estimated by the management information estimating module and displaying the image pattern on the display unit.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a block diagram showing a configuration of a first embodiment of an image display apparatus according to the present invention.
FIG. 2 is a diagram illustrating a configuration of a management unit of an image file stored in a storage device of the image display device in FIG. 1.

As shown in FIG. 1, the image display device has a CP
U11 is provided. The CPU 11 executes corresponding processing such as image display processing and image file management processing according to a program stored in the memory 12.

A keyboard 13, a display 14 capable of color display, a storage device 15, and a storage device 16 are connected to the CPU 11 via a bus line 17 together with the memory 12, and each block is controlled by the CPU 11. The keyboard 13 has various keys for setting various environments such as data input, processing, and operation in each processing. The display 14 displays an image of the image file 18 stored in the storage device 15, and the like.

The storage device 15 stores an image file 18. As shown in FIG. 2, the image file 18 includes a management unit 19 and a data unit 20. The management unit 19 includes a marker 21, an image format 22, a horizontal size 23, a vertical size 24, and the number of colors 25. , Resolution 26, display format 27, and quantization table 28 are written. The data written in the data section 20 according to each management information of the management section 19 is assembled as an image. The management unit 19 and the data unit 2
0 may be combined as one file, or may be provided as separate fights, but either case may be used.

The storage device 16 is a storage device for storing an intermediate file of an image to be displayed on the display 14, and the storage device 16 can be provided integrally with the storage device 15. Further, each of the storage devices 15 and 16 may be a volatile or non-volatile storage device.

Next, an image display process and an image file management process according to the present embodiment will be described with reference to FIG. FIG. 3 is a diagram showing an example of a display pattern when displaying an image analyzed by the image file management process of the image display device of FIG.

As described above, the image display process is a process executed by the CPU 11 in accordance with the program stored in the memory 12. In this process, the image file 18 is read from the storage device 15 and displayed on the display 14. Is performed.

Similarly, the image file management process is a process executed by the CPU 11 in accordance with a program stored in the memory 12. The program for executing the image file management process is the management unit 1 of the image file 18.
A detection module for detecting the presence or absence of a broken portion for each of the data portion 9 and the data portion 20; and a display pattern representing an image capable of specifying the broken portion of the image file 18 according to the detection result of the detection module. A display control module for displaying an image represented by the set display pattern on the display 14. As shown in FIG. 3, the display control module selects and displays a display pattern according to the detection result of the detection module from among the display patterns 31 to 34.

As shown in FIG. 3A, the display pattern 31 is a pattern for displaying an image of a normal image file 18 in a reduced size. As shown in FIG. 3B, the display pattern 32 has a destruction portion in the data section 20 and the management section 1
Reference numeral 9 denotes a display pattern for a normal image file, and the lower half represents a lost image. In the display pattern 33, as shown in FIG.
9 is a display pattern for a normal image file in which the data part 20 is normal, and represents an image in which the upper half is missing. The display pattern 34 represents an image surrounded by a dotted line as shown in FIG.

Next, a procedure of a management section information determination process for detecting a destroyed portion of the management section 19 of the image file 18 will be described with reference to FIGS. FIG. 4 is a diagram showing a structure for storing a detection result of whether each management information of the management unit is normal or abnormal by the image file management process of the image display device of FIG. 1, and FIGS. 5 and 6 are diagrams of FIG. 11 is a flowchart illustrating a procedure of a management unit information determination process for determining whether a management unit is normal or abnormal in an image file management process of the image display device.

When detecting whether each of the management information 21 to 28 of the management unit 19 of the image file 18 is normal or abnormal, as shown in FIG. The result is stored in the management unit effective area 41 provided in the storage device 16. The management unit effective area 41 provided in the storage device 16 has items corresponding to the management information 21 to 28, and a bit indicating validity or invalidity is set in each item. Here, a bit of 1 is set in an item of valid management information, and a bit of 0 is set in an item of invalid management information. When the bit of 0 is set in all items, it is determined that all the management information of the management unit 19 is invalid, that is, there is no management information.

Next, the management section information determination processing will be described. Here, in this management unit information determination process, it is assumed that 0 is set as a default value in the bit of the item corresponding to each of the management information 21 to 28. In this management unit information determination process, as shown in FIG.
01, the management unit 19 stores the marker 2 as management information.
It is determined whether there is 1 or not, and if there is a marker, 1 is set to the marker bit in step S502. After setting this marker bit or when there is no marker, the process proceeds to step S503, and it is determined whether or not there is an image format. If there is an image format, 1 is set to the image format bit in step S504. After setting the image format bit or if there is no image format, the process proceeds to step S505 to determine whether or not there is a size (horizontal and vertical sizes). Set. After setting the size bit or if there is no size, step S5
In step S507, it is determined whether or not there is a color number. If there is a color number, 1 is set to the color number bit in step S508. After setting the color number bit or if there is no color number, step S5
In step S510, it is determined whether or not there is a resolution. If there is a resolution, 1 is set to the resolution bit in step S510. After setting the resolution bit or if there is no resolution, the process proceeds to step S511 shown in FIG. 6 to determine whether there is a display format. If there is a display format, the display format bit is set to 1 in step S512. After setting the display format bit or when there is no display format, the process proceeds to step S513.
It is determined whether or not there is a quantization table. If there is a quantization table, 1 is set to the quantization table bit in step S514. After setting the quantization table bits or when there is no quantization table, the process proceeds to step S515, and it is determined whether the bits of all the items in the management unit effective area 41 are 0. If the bits of all items are 0, it is determined that all management information of the management unit 19 is invalid, and the process advances to step S516 to display a management information indicating that all management information of the management unit 19 is invalid. Set the disable flag. After the setting of the management information display disable flag or when the bits of all items in the management unit effective area 41 are not 0,
Exit this process.

Next, the procedure of a data part information determination process for detecting a destruction part of the data part 20 of the image file 18 will be described with reference to FIG. FIG. 7 is a flowchart illustrating a procedure of data part information determination processing for determining whether the data part is normal or abnormal in the image file management processing of the image display device of FIG.

In this data part information determination processing, as shown in FIG. 7, first, in step S71, it is determined whether or not the management information display disable flag is set. If the management information display disabled flag is set, the data section 2
Since data of 0 cannot be constructed, step S
Proceeding to 74, a data section information display disabled flag indicating that the data section 20 cannot be displayed is set, and the process exits.

If the management information display disable flag has not been set, the flow advances to step S72 to determine whether or not data of the size specified by the management information of the management unit 19 exists in the data unit 20. When the data of the size specified by the management information of the management unit 19 does not exist in the unit 20, it is determined that the data unit 20 has the destroyed data, and the process proceeds to step S74. Set and exit this process.

If data of the size specified by the management information of the management section 19 exists in the data section 20, the flow advances to step S73 to determine whether or not the sum check value of the data section 20 is correct. If the sum check value is not correct, it is determined that there is corrupted data in the data section 20, and the flow advances to step S74 to set a data section information display disable flag and exit this processing. If the sum check value is correct, it is determined that there is no corrupted data in the data section 20, and the process exits.

Next, display processing is performed to analyze the image file based on the result of the management section information determination processing and the result of the data section information determination processing and display the result as a display pattern. This display process will be described with reference to FIG. FIG. 8 is a flowchart showing a procedure of a display process in the image file management process of the image display device of FIG.

In this display processing, as shown in FIG. 8, first, in step S81, it is determined whether or not the management information display disable flag is set. If the management information display disable flag is set, the data section information display disable flag is set in the data section information determination processing. Therefore, the management section 19 and the data section 20 of the image file 18 are set.
Are determined to have been destroyed, the process proceeds to step S88, and an image according to the display pattern 34 (shown in FIG. 3D)
Is displayed on the display 14. Then, the process exits.

If the management information display disable flag is not set, the process proceeds to step S82, and it is determined whether the data part information display disable flag is set. If the data part information display disable flag is not set, Proceeding to step S83, the management unit effective area 4 of the storage device 16
It is determined whether or not one bit is set in all the management information items stored in one. When 1 bit is set in all items of management information, it is determined that the management unit 19 and the data unit 20 of the image file 18 are not logically destroyed, and the process proceeds to step S86.
An image according to the display pattern 31 (shown in FIG. 3A) is displayed on the display 14, and the process exits.

When it is determined in step S83 that one bit is not set in all the management information items, it is determined that the data section 20 has not been destroyed but the management section 19 has a destroyed portion. Proceeding to step S85, an image according to the display pattern 33 (shown in FIG. 3C)
Is displayed on the display 14 and the processing exits.

When the data section information display disable flag is set in step S82, the process proceeds to step S84, and whether 1 bit is set in all the management information items stored in the management section effective area 41 is determined. Determine whether or not. When 1 bit is set in all the management information items, it is determined that the management section 19 of the image file 18 has not been destroyed but the data section 20 has been destroyed, and the process proceeds to step S87 to follow the display pattern 32. The image (shown in FIG. 3B) is displayed on the display 14, and the process exits. On the other hand, if it is determined in step S84 that 1 bit is not set in all the management information items, the data unit 2
Is destroyed, and it is determined that there is a destroyed portion in the management unit 19, and the process proceeds to step S88, where an image (shown in FIG. 3D) according to the display pattern 34 is displayed on the display 14, and the process exits.

As described above, in the present embodiment, the presence / absence of a destruction portion is detected in each of the management unit 19 and the data unit 20 of the image file 18, and the destruction portion of the image file 18 is detected in accordance with the detection result. Display pattern 3 that can identify
1 to 34 are set and the image represented by the set display pattern is displayed on the display 14.
Can be visually recognized as to whether the image file 18 has been destroyed, whether the data section 20 has been destroyed, or whether both the management section 19 and the data section 20 have been destroyed. For example, various measures such as re-collection and re-imaging of images can be taken.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 9 is a diagram illustrating an example of a display pattern according to the second embodiment of the image display device of the present invention. Note that this embodiment has the same configuration as the above-described first embodiment, and a description thereof will be omitted.

This embodiment is different from the first embodiment in that a function of notifying the user of the effective management information by using a display pattern to which character information indicating effective management information of the management unit 19 is added. Is different.

More specifically, as shown in FIG.
If there is invalid management information in the management information of No. 9, a display pattern representing an image in which the lower half is missing is used, and character information indicating valid management information is added to the missing portion of this image. In this processing, valid management information is extracted with reference to the management section valid area 41. This processing is executed based on the user's instruction after displaying the destruction state of the image file using the display pattern in the first embodiment described above.

For example, when only the marker (date and time information) is valid in the management information, as shown in FIG.
An image in which the lower half is missing and a display pattern 91 in which marker information (date and time information) is added to the missing portion are used. When only the size (horizontal and vertical sizes) is valid in the management information, as shown in FIG. 9B, an image in which the lower half is missing and a display pattern 92 in which size information is added to the missing portion are displayed. Used. When only the image format is valid in the management information, as shown in FIG. 9C, an image whose lower half is missing and a display pattern 93 in which image format information is added to the missing portion are used.

When there are a plurality of pieces of effective management information, it goes without saying that a display pattern to which all of them are added may be used.

As described above, in the present embodiment, the management unit 1
9 can be seen in detail.

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIG. FIG.
0 is a diagram for explaining an image file estimation process in the third embodiment of the image display device of the present invention. Note that this embodiment has the same configuration as the above-described first embodiment, and a description thereof will be omitted.

This embodiment is different from the first embodiment in that the management section 19 and the data section 2 of the image file 18 are different from the first embodiment.
When both 0 are destroyed, the management unit of the image file around the destroyed image file 18 is extracted, and the destroyed image is managed based on the management information included in the management unit of the extracted peripheral image file. The management information of the management unit of the file 18 is estimated, and an image pattern of the image file 18 is generated based on the estimated management information.
4 in that a display function is added.

Specifically, as shown in FIG. 10, when the management section and the data section of the image file 102 are both destroyed, a normal peripheral image file of the destroyed image file 102, for example, the same directory or The management information (21 to 28 shown in FIG. 2) of the management unit of the normal image files 101 and 103 in the folder is extracted, and the management information of the same value in the management information of the extracted peripheral image files 101 and 103 is extracted. Is estimated as the management information of the image file 102, an image pattern 104 having a size equal to the image size of the peripheral image files 101 and 103 is generated based on the estimated management information, and the generated image pattern 104 is stored in the image file 102. As an image pattern.

As described above, in this embodiment, when the management section and the data section of the image file 102 are both destroyed, the normal peripheral image file of the destroyed image file 102 The image pattern 104 can be estimated, and appropriate measures can be taken against destruction of the image file 102 from the estimated image pattern 104.

In each of the above-described embodiments, a program for executing the image file management process is stored in the memory 12, but the program is stored in another storage medium, for example, a hard disk device, a CDROM, a floppy disk, or the like. It is also possible to supply from such as.

[0054]

As described above, according to the image display apparatus of the first aspect, the detection means for detecting the presence or absence of a logically damaged destruction portion in the image file, and the detection result of the detection means And a display control means for setting a display pattern representing an image capable of specifying a destructive portion of the image file in accordance with the display pattern, and displaying an image represented by the set display pattern on the display means. In the case where the image file is destroyed, it is possible to notify the user of information for performing an appropriate measure against the destruction of the image file.

According to the image display device of the present invention, the image file is composed of the data management section and the image data section, and the detecting means is provided for each of the data management section and the image data section of the image file. The display control means detects the presence or absence of the destruction portion, and the display control means displays a display pattern indicating an image that specifies that only the data management portion of the image file has been destroyed, and a display that specifies the case where only the image data portion has been destroyed. A display pattern corresponding to the detection result of the detection means is selected from the display patterns for specifying the case where the pattern, the data management unit, and the image data unit are each destroyed, and the selected display pattern Since the displayed image is displayed on the display means, the user can be notified of the destruction state of the image file.

According to the image display device of the third aspect, the detecting means detects whether any of the plurality of management information included in the data management unit of the image file has been destroyed. It can be configured to include a management unit detection unit and an image data unit detection unit that detects whether the image data unit is destroyed.

According to the image display device of the fourth aspect, a display pattern representing an image capable of specifying the destroyed management information detected by the data management unit detection means is set, and the display pattern is represented by the set display pattern. Since the data management unit display control means for displaying the image to be displayed on the display means is provided, the user can be notified in detail of the destruction state of the data management unit of the image file.

According to the fifth aspect of the present invention, when the detecting means detects that the data management section and the image data section are each destroyed, the data management of the image file around the image file is performed. Management information estimating means for extracting a part, and estimating management information of the data management part of the image file based on management information included in the data management part of the extracted peripheral image file; and management information estimated by the management information estimating means. And an estimated image pattern display control means for estimating the image pattern of the image file based on the image pattern and displaying the estimated image pattern on the display means. It is possible to notify the user of information for performing an appropriate measure against destruction of the image file.

According to the image file management method of the present invention, when the image file is logically destroyed, it is possible to notify the user of information for performing an appropriate measure against the destruction of the image file. it can.

According to the image file management method of the present invention, it is possible to notify the user of the destruction state of the image file.

According to the image file management method of the ninth aspect, it is possible to notify the user in detail of the destruction state of the data management unit of the image file.

According to the image file management method of the present invention, even if the data management section and the image data section are each destroyed, appropriate measures are taken against the destruction of this image file from the estimated image pattern. Information to be performed can be notified to the user.

According to the storage medium of the eleventh aspect, when an image file is logically destroyed, it is possible to notify the user of information for performing an appropriate measure against the destruction of the image file.

According to the storage medium of the twelfth or thirteenth aspect, the user can be notified of the destruction state of the image file.

According to the storage medium of the fourteenth aspect, the destruction state of the data management unit of the image file can be notified to the user in detail.

According to the storage medium of the present invention, even if the data management section and the image data section are each destroyed, appropriate measures are taken against the destruction of this image file from the estimated image pattern. Can be notified to the user.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an image display device according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration of a management unit of an image file stored in a storage device of the image display device in FIG. 1;

FIG. 3 is a diagram showing an example of a display pattern when displaying an image analyzed by the image file management process of the image display device of FIG. 1;

FIG. 4 is a diagram showing a structure for storing a detection result indicating whether each management information of a management unit is normal or abnormal by an image file management process of the image display device of FIG. 1;

5 is a flowchart illustrating a procedure of a management unit information determination process for determining whether the management unit is normal or abnormal in the image file management process of the image display device in FIG. 1;

FIG. 6 is a flowchart illustrating a procedure of a management unit information determination process for determining whether the management unit is normal or abnormal in the image file management process of the image display device in FIG. 1;

FIG. 7 is a flowchart illustrating a procedure of a data part information determination process for determining whether the data part is normal or abnormal in the image file management processing of the image display device of FIG. 1;

8 is a flowchart illustrating a procedure of a display process in an image management file of the image display device of FIG.

FIG. 9 is a diagram illustrating an example of a display pattern according to a second embodiment of the image display device of the present invention.

FIG. 10 is a diagram illustrating an image file estimation process according to a third embodiment of the image display device of the present invention.

[Explanation of symbols]

 11 CPU 12 Memory 13 Keyboard 14 Display 15, 16 Storage Device

Claims (15)

[Claims] 1. An image display device which stores an image file in a storage means, reads the image file from the storage means, and displays the image file on a display means, wherein the presence or absence of a logically damaged destruction part in the image file is determined. Detecting means for detecting, and setting a display pattern representing an image capable of specifying a destructed portion of the image file according to a detection result of the detecting means, and displaying an image represented by the set display pattern on the display means. An image display device, comprising: display control means for displaying. 2. The image file includes a data management unit and an image data unit, and the detecting unit determines whether the destruction part is included in each of the data management unit and the image data unit of the image file. Detecting the presence or absence, the display control means, a display pattern representing an image that specifies the case where only the data management unit of the image file is destroyed,
The detecting means includes a display pattern for specifying a case where only the image data portion is destroyed, and a display pattern for specifying a case where the data management portion and the image data portion are respectively destroyed. 2. The image display device according to claim 1, wherein a display pattern corresponding to the detection result is selected, and an image represented by the selected display pattern is displayed on the display unit. 3. The data management unit detection means for detecting whether any management information of a plurality of management information included in the data management unit of the image file has been destroyed, and 3. The image display device according to claim 2, further comprising: an image data portion detecting means for detecting whether or not the image data portion has been destroyed. 4. A display pattern representing an image capable of specifying the destroyed management information detected by the data management unit detection means is set, and an image represented by the set display pattern is displayed on the display means. The image display device according to claim 3, further comprising a data management unit display control unit. 5. When the detecting means detects that the data management section and the image data section are each destroyed, the data management section extracts an image file data management section around the image file. Management information estimating means for estimating management information of the data management part of the image file based on management information included in the data management part of the extracted peripheral image file; and the image processing means based on the management information estimated by the management information estimating means. 4. The image display device according to claim 2, further comprising: an estimated image pattern display control unit that estimates an image pattern of a file and displays the image pattern on the display unit. 6. An image file management method for use in an image display device which stores an image file in a storage means, reads the image file from the storage means, and displays the image file on a display means. Detecting the presence or absence of the destruction portion, and setting a display pattern representing an image that can specify the destruction portion of the image file according to the detection result, and displaying the image represented by the set display pattern. Displaying the image on a display means. 7. The image file includes a data management unit and an image data unit, and detects presence / absence of the destruction part in each of the data management unit and the image data unit of the image file. A display pattern representing an image that specifies the case where only the data management unit of the image file has been destroyed, a display pattern that specifies the case where only the image data unit has been destroyed, the data management unit and the image data unit; Is selected from among the display patterns of the display patterns that specify the case where each is destroyed, according to the detection result of the detection means, and an image represented by the selected display pattern is displayed on the display means. 7. The image file management method according to claim 6, wherein the image file is displayed. 8. Detecting whether any of the plurality of management information included in the data management section of the image file is destroyed, and determining whether or not the image data section is destroyed. The method according to claim 7, wherein the image file is detected. 9. When the destroyed management information is detected, a display pattern representing an image capable of specifying the management information is set, and an image represented by the set display pattern is displayed on the display means. 9. The method according to claim 8, further comprising the steps of: 10. When it is detected that the data management unit and the image data unit are each destroyed, the data management unit of an image file around the image file is extracted, and the extracted peripheral image is extracted. Estimating management information of the data management unit of the image file based on management information included in the data management unit of the file; estimating an image pattern of the image file based on the estimated management information; 9. The method according to claim 7, further comprising the step of displaying. 11. A storage medium storing a program for constructing an image management system on an image display device which stores an image file in a storage means, reads the image file from the storage means and displays the image file on a display means, The program includes a detection module for detecting the presence or absence of a logically damaged destruction portion in the image file, and a display pattern representing an image capable of specifying the destruction portion of the image file according to a detection result of the detection module. And a display control module for displaying an image represented by the set display pattern on the display means. 12. The image file includes a data management unit and an image data unit, and the detection module includes:
Detecting the presence or absence of the destruction portion for each of the data management unit and the image data unit of the image file,
The display control module includes a display pattern representing an image that specifies when only the data management unit of the image file is destroyed, a display pattern that identifies a case where only the image data unit is destroyed, and the data management unit. And a display pattern corresponding to the detection result of the detection means is selected from display patterns for specifying a case where the image data portion is destroyed, and is represented by the selected display pattern. The storage medium according to claim 11, wherein an image is displayed on said display means. 13. The data management unit detection module for detecting whether any management information of a plurality of management information included in the data management unit of the image file is destroyed, and 13. The storage medium according to claim 12, further comprising an image data part detection module for detecting whether or not the image data part has been destroyed. 14. The program sets a display pattern representing an image capable of specifying the destroyed management information detected by the data management unit detection module, and displays the image represented by the set display pattern. 14. The storage medium according to claim 13, further comprising a data management unit display control means for displaying on the means. 15. The program, when the detection module detects that the data management unit and the image data unit are each destroyed, causes the data management unit of an image file around the image file to be destroyed. A management information estimating module for extracting and estimating management information of a data management unit of the image file based on management information included in a data management unit of the extracted peripheral image file; and management information estimated by the management information estimating module. 14. The storage medium according to claim 12, further comprising: an estimated image pattern display control module configured to estimate an image pattern of the image file based on the control information and display the estimated image pattern on the display unit.