JPH11353320A - Image data management system and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify server's processing at the time of selling picture data, to shorten time required from user's selection of picture data up to its use and to set up using conditions in detail. SOLUTION: Picture data of which using contract between a server and a writer has been previously concluded and to which attribute information is added are supplied from a server side device 2 to a user side device 3 through a CD-ROM 4 together with a management program. After concluding the selling contract of picture data of which use is required by a user between the user and the server, key data for erasing the attribute information added to the selected image based on a prescribed management program are supplied from the device 2 to the device 3 through an IC card 5. The device 3 erases the attribute information added to the picture data of which selling contract has been concluded by using the key data and the management program.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image data management system and an image data management method for managing only image data for which a use contract has been established among a plurality of image data supplied from a server to a user so that the user can use the image data. About.

[0002]

2. Description of the Related Art Artistic works such as paintings can be repeatedly used by duplication, and can be used as computer-readable image data for writing / reading on a recording medium such as a CD-ROM and data communication. Transmission / reception processing via a line can be performed. For this reason, with the recent high performance of color displays and color printers,
The needs in the printing, publishing and advertising industries are high.

[0003] On the other hand, the author is protected by copyright, and in order to copy an art work such as a painting and use it publicly, it is necessary to obtain the permission of the author and the user wishes to use it. It is necessary to negotiate a contract with the creator, which defines contract terms such as a period of use and a charge for each work, and the user needs a complicated procedure for negotiating the use contract.

[0004] Therefore, a plurality of art works, for which a use contract has been previously concluded with the author, are prepared in a server, and image data of a user's desired use among the prepared art works is stored in the server. To sell to users. Specifically, a sample book in which images of a plurality of art works are printed, or a recording medium in which image data of a plurality of art works are recorded is distributed from a server to a user, and the user selects from the sample book or the recording medium. The image data of the created art work is supplied to the user in exchange for the price.

[0005]

However, after the user selects a desired art work in the sample book, the server records image data of the selected art work on a recording medium, and the recording medium is provided to the user. If it is to be supplied, it takes a long time to create a recording medium that records image data of an art work composed of a large amount of data for each user, and the processing in the server becomes complicated, There is a problem that the time required for a user to select a desired art work and obtain usable image data is prolonged.

[0006] In addition, the use conditions are finely adjusted according to the contract conditions, such as using only a part of the image data of the art work or making the image data of the art work usable only for a limited period. There is a problem that cannot be set.

[0007] These problems are caused by distributing thumbnails of image data of a plurality of art works to a user in advance instead of a sample book, recording high-resolution image data corresponding to the thumbnail selected by the user on a recording medium, The same applies to the case of supplying to

On the other hand, when a recording medium storing image data of a plurality of preselectable art works is distributed to a user,
There is a problem that the user can freely use the image data of an arbitrary art work regardless of whether the use contract is successful or not, and cannot protect the rights of the author.

An object of the present invention is to distribute an image data recording medium in which attribute information is added to each of a plurality of image data and record them to a user in advance, and manage the attribute information added to the image data selected by the user. Supply of management data to the user from the server, the process of recording the image data on the recording medium after the selection of the user becomes unnecessary,
An image data management system and an image data management method capable of simplifying processing in a server, shortening the time required from selection to use of image data by a user, and further enabling detailed setting of use conditions. Is to provide.

[0010]

According to the first aspect of the present invention, there is provided an image data management system including a server device and a user device, wherein the server device indicates whether the user device can be used. A process of recording the image data to which the attribute information has been added on the image data recording medium, and a management data for managing the attribute information added to the image data based on the contents of the contract for using the image data on the management data recording medium. Performing a recording process, wherein the user-side device reads management data recorded on the management data recording medium, and an attribute of the image data recorded on the image data recording medium using the read management data. And a process of managing information.

According to a fourth aspect of the present invention, there is provided a process for recording image data on a server device to which attribute information indicating whether or not the user device can be used is recorded on an image data recording medium, and a contract for use of the image data. A control unit for executing a process of recording management data for managing attribute information added to the image data based on the content on a management data recording medium;

According to a seventh aspect of the present invention, there is provided a user-side apparatus for reading management data recorded on a management data recording medium, and using the read management data to read an image recorded on an image data recording medium. And a control unit for executing processing for managing data attribute information.

[0013] The invention according to claim 11 is characterized in that a management data recording area for selectively managing attribute information added to any of a plurality of image data is provided on a management data recording medium. And

According to a fourteenth aspect of the present invention, the image data to which the attribute information indicating whether or not the user can use the image data is recorded on the image data recording medium before the use contract of the image data is established, and the image data is supplied from the server to the user. Recording management data for managing attribute information added to image data on a management data recording medium based on the contents of the usage contract after the conclusion of the usage contract for the image data, and supplying the management data from the server to the user. And

According to the present invention, image data to which attribute information indicating whether the user can use the image data is recorded on an image data recording medium and supplied in advance from the server to the user. The management data for managing the attribute information added to the image data based on the contents of the use contract after the use contract is established for the image data selected by the user on the management data recording medium, and the server To the user from. Therefore, by using the management data recorded on the management data recording medium, the attribute information added to the selected image data among the plurality of image data recorded on the image data recording medium is managed, and the image data Can be used.

Note that the attribute information is image data of a visible image or an invisible image added to an image of an art work without deteriorating the visibility of the image of the art work.

According to a second aspect of the present invention, the management data is based on identification data for specifying image data for which a use contract has been established, and identification data from a plurality of image data recorded on an image data recording medium. A management program for managing attribute information added to the selected image data, wherein the server-side apparatus records the management program on an image data recording medium or a management data recording medium and manages identification data. It is characterized by recording on a data recording medium.

According to a fifth aspect of the present invention, the control unit of the server-side device records the image data added with the attribute information indicating whether or not the user-side device can be used on the image-data recording medium; A process of recording identification data for specifying image data for which is satisfied on the management data recording medium, and attribute information added to image data selected based on the identification data from a plurality of image data recorded on the image data recording medium Recording a management program for managing the image data on the image data recording medium or the management data recording medium.

According to an eighth aspect of the present invention, the control section of the user-side device reads the identification data recorded on the management data recording medium, and reads the identification data recorded on the image data recording medium or the management data recording medium. The management program reads out the management program, and manages the attribute information of the image data specified by the identification data among the image data recorded on the image data recording medium based on the management program.

According to a tenth aspect of the present invention, there is provided image data in which attribute information indicating whether or not use is possible in a user device is added to an image data recording medium, and image data based on the contents of an image data use contract. A management program for managing the added attribute information is recorded.

According to a twelfth aspect of the present invention, in the management data recording medium, the management data recording area includes an identification data recording area for specifying image data for which a use contract has been established among a plurality of image data, and an identification data recording area. And a recording area of a management program for managing the attribute information added to the image data specified by the management program.

According to a fifteenth aspect of the present invention, the identification data for specifying the image data for which the use contract has been established after the use contract for the image data has been established is recorded on the management data recording medium and supplied from the server to the user. A management program for managing the attribute information of the image data specified by the data is recorded on the image data recording medium before the image data use contract is concluded, or the management data is stored together with the identification data after the image data use contract is concluded. It is recorded on a recording medium and supplied from a server to a user.

According to the invention described in claims 2, 5, 8, 10, 12 and 15, the management program for managing the attribute information of the image data specified by the identification data is provided with a contract for using the image data. Beforehand, it is recorded on the image data recording medium together with the image data and distributed to the user from the server in advance, or is recorded on the management data recording medium together with the identification data after the conclusion of the use contract of the image data and supplied from the server to the user. I do. Therefore, the user can execute the management program recorded on the image data recording medium or the management data recording medium with respect to the image data specified by the identification data supplied via the management data recording medium after the conclusion of the use contract for the image data. By managing the attribute information added to the selected image data among the image data recorded on the image data recording medium, the image data can be made usable.

According to a third aspect of the present invention, the user device executes a process of writing usage information of image data stored in an image data recording medium to a management data recording medium,
The server-side device executes a process of calculating a billing amount for use of image data based on usage information read from a management data recording medium.

According to a sixth aspect of the present invention, the control unit of the server-side device executes a process of reading usage information from a management data recording medium and a process of calculating a billing amount based on the read usage information. It is characterized by doing.

According to a ninth aspect of the present invention, the control unit of the user device executes a process of writing usage information of the image data stored in the image data recording medium to a management data recording medium. .

According to a thirteenth aspect of the present invention, the management data recording medium includes a recording area in which a user uses image data.

According to the present invention, the usage status of the image data is recorded on the management data recording medium, returned from the user to the server, and the charge amount is charged by the server based on the usage status recorded on the management data recording medium. Is calculated.

In the third, sixth, ninth, thirteenth, and sixteenth aspects of the present invention, the user calculates the amount to be charged based on the usage state of the image data recorded on the management data recording medium. Therefore, the management of the use state of the image data and the calculation of the charge amount of the image data are performed only by the data stored in the management data recording medium.

[0030]

FIG. 1 is a block diagram showing a configuration of an image data management system according to an embodiment of the present invention. In the image data management system 1 according to the embodiment of the present invention, the server and the creator conclude in advance a usage contract such as a usage mode and a usage fee for using an image of each art work, and An image of the contracted art work is supplied to the user with the attribute information added thereto, and the image desired by the user is added to the image after a sales contract has been established between the user and the server. Key data for erasing the attribute information based on a predetermined management program is supplied from the server to the user, so that the user can freely use the image according to the contents of the sales contract.

The attribute information is, as described above, image data of a visible image or an invisible image added to the image data of the art work without deteriorating the visibility of the image, and includes digital watermarking and encryption. Characters and the like are known. An electronic watermark is composed of data for increasing or decreasing the value of each density data of a plurality of specific pixels among pixels constituting image data of an original image, and creating another image displayed in light and shade in the original image. It is. Further, the encrypted character is composed of minute characters, numbers or symbols, or image data obtained by appropriately combining them, and creates an image of minute characters as a part of the original image.

Generally, a digital watermark is formed as a visible image in an original image, and an encrypted character is formed as an invisible image in the original image. When an encrypted character, which is an invisible image, is added to the original image as attribute information, the visibility of the original image does not naturally deteriorate, and when an electronic watermark, which is a visible image, is added, another image is used. Is displayed in shades, so that the visibility of the original image is not significantly degraded.

When an electronic watermark as a visible image is added to the original image as attribute information, another image is naturally viewed in the reproduced image. When an encrypted character as an invisible image is added, the reproduced image is also displayed. In such a case, color bleeding or the like occurs at a position where a minute character exists, and the original image cannot be faithfully reproduced with the attribute information added. Further, by using a search tool for searching for an image to which attribute information has been added on the Internet, it is possible to easily find an image used on the Internet with the attribute information added.

As described above, even when attribute information is added to an image of an art work as an original image, the visibility of the image does not deteriorate, so that there is no hindrance to the selection of an image desired to be used by the user. Never come. In addition, when a reproduced image is formed with attribute information added, the image quality deteriorates in the reproduced image, and the use of the search tool makes it easy to find use on the Internet. Use of artistic work in unacceptable circumstances.

The image data management system 1 includes a server-side device 2 of a server that sells image data of an art work.
And a user device 3 of a user who purchases image data.

The server-side device 2 sends a control unit 21 with a scanner 22 for reading image data of art work, a keyboard 23 for receiving input of text data such as contract conditions for each image data, and attribute information after reading by the scanner 22. A database 2 for storing a plurality of image data to which a character string is added with code data and contract data to be described later attached thereto.
4. A plurality of image data to which the attribute information has been added are stored in a CD-R
A CD-ROM driver 25 for recording on the OM 4;
A card reader / writer 26 that performs a process of writing data such as contract conditions of a contract concluded between the user and the IC card 5 and a process of reading data representing a use state written in the user device 3. Connected and configured.

The user-side device 3 sends a CD-
CD-reading image data recorded in ROM 4
ROM driver 32, card reader / writer 33 for writing data representing the state of use of image data to IC card 5, and reading image data written in server-side device 2, setting of contract conditions ,as well as,
Keyboard 34, CD-R for receiving input of use state
A display 35 for displaying image data read by the OM driver 32 and a printer 36 for outputting image data are connected.

As shown in FIG. 2, the CD-ROM 4
At least a plurality of image data recording areas 41 for recording image data to which code information and contract data to which attribute information is added and to be described later are attached, a management program recording area 42 for recording a management program to be described later,
A work area 43 for recording image data from which the attribute information has been deleted is configured.

As shown in FIG. 3, a user code data recording area 51 for recording user code data for specifying a user to whom key data is to be supplied via the IC card 5, as shown in FIG. A key data recording area 52 for recording key data, and a use count recording area 53 for recording a count value of the number of uses of image data are configured.

The CD-ROM 4 corresponds to the image data recording medium of the present invention, and the IC card 5 also corresponds to the management data recording medium. However, each of the image data recording medium and the management data recording medium is a CD-ROM 4
The present invention is not limited to the IC card 5 and other recording media capable of recording a plurality of image data and contract data. In addition, the control unit 21 of the server-side device 2,
In addition, the control unit 31 of the user device 3 can be constituted by a personal computer.

FIG. 4 is a flowchart showing the processing procedure of the control unit of the server-side device constituting the image data management system. The control unit 21 of the server-side device 2 executes image data storage processing, image data recording processing, key data writing processing, and billing amount calculation processing.

The image data storing process is a process of storing image data of an art work for which a use contract has been established with the author in the database 24. For this reason, the control unit 21
As shown in FIG. 4A, in the image data storage processing, first, image data of an art work is read via the scanner 22 (s1), and the read image data is temporarily stored in a memory (not shown). (S2). Further, the control unit 21
Receives input of code data for identifying image data on the keyboard 23 and contract data indicating the contents of a use contract established with the author (s3).
The code data and the contract data are attached to the image data stored in the memory (s4).

It should be noted that the input of the code data is not limited to the keyboard 23, but can be received using an OCR or a bar code reader. Also, the contract data can include data such as the name of the creator and the date of creation in addition to usage data such as the usage period and usage fee of the image of the art work. Further, if the author permits, the image of the art work may be divided into a plurality of parts, and the image data of each part may be selectively used by the user. , Data indicating whether partial use is possible or not, and attribute information, code data, and contract data need to be separately added and attached to each part.

Next, the control unit 21 adds the general-purpose attribute information prepared in advance or the newly created individual attribute information to the image data stored in the memory (s
5) The image data to which the attribute information is added is stored in the database 24 together with the code data and the contract data (s6). A well-known method can be used for specific processing when adding attribute information to image data.

The individual attribute information can be created using, for example, code data. Specifically, when the code data represents a character string of a predetermined length, an electronic watermark that displays a grayscale image of the character string of the code data, or
An encrypted character in which the character string of the code data is composed of minute characters is created as attribute information to be added to the image data stored in the memory. In this case, an image of a digital watermark or an encrypted character can be formed by using a part or all of the characters constituting the character string representing the code data as it is or by performing a predetermined process.

The image data recording process is a process of recording a plurality of image data together with a management program on the CD-ROM 4. For this reason, as shown in FIG. 4B, in the image data recording process, the control unit 21 first reads a plurality of image data from the database 24 (s11),
The read image data is sequentially recorded in the image data recording area 41 of the CD-ROM 4 via the CD-ROM driver 25 (s12). At this time, the plurality of image data to be read out from the database 24 include, for example, common image data of a type such as one having a common theme, one having the same author, or one having the same motif included in the image. can do.

Next, the control unit 21 reads a management program from a memory (not shown) (s13), and records the read management program in the management program recording area 42 of the CD-ROM 4 (s14). This management program
A program that stores a processing procedure for deleting attribute information from image data that matches key data described later,
Details will be described later. The CD-ROM 4 in which a plurality of image data are recorded together with the management program is distributed to the user for a fee or free of charge.

The key data writing process is a process of creating key data and writing it to an IC card. The key data is CD-
Among the image data recorded in the ROM 4, image data for which a sales contract between the user and the server has been established, and data for specifying image data for which attribute information is to be deleted using a management program described later. It is. Therefore, prior to the key data writing process, when the user specifies image data desired to be used by the user among the image data recorded on the CD-ROM 4 to the server, the creator and the server communicate with each other. A sales contract for image data, which defines the usage pattern and usage fee for the user according to the contents of the usage contract established between the user and the server, is concluded between the user and the server.

When a sales contract is concluded between the user and the server, as shown in FIG. 4 (C), the control unit 21 determines in the key data writing process the image data for which the sales contract has been concluded with the user. Is read out from the database (s21), and the read code data is used as key data via the card reader / writer 26 for IC.
It is recorded in the key data recording area 52 of the card 5 (s2
2). The IC card 5 on which the key data is recorded is supplied to the user by mail, for example.

As the key data, the above-mentioned code data attached to each image data for identifying each image data can be used as it is or after performing a predetermined process. However, the key data is used to determine whether the management program can delete the attribute information according to the success or failure of the sales contract between the user and the server. This is for permitting erasure of attribute information only for data. Therefore, it is necessary to prevent the user from knowing the contents of the key data in order to surely prohibit the deletion process of the attribute information for the image data for which the sales contract between the user and the server has not been established. . For this reason,
At least, data for specifying image data desired to be used from a plurality of image data recorded on the CD-ROM 4 by the user and data for specifying image data for which attribute information is to be erased using the management program are different. It is necessary to make the content data, and for example, key data may be created by combining code data and a password arbitrarily set in the server.

The billing amount calculation process is a process of calculating the amount to be charged to the user as a price for using the image data according to the usage state of the image data by the user. For this reason, as shown in FIG. 4 (D), the control unit 21 first performs the card reader / writer 26
The use number data indicating the use state of the image data is read from the use number recording area 53 of the IC card 5 via the interface (s31). The user who has finished using the image data has returned the IC card 5 to the server.

Next, the control unit 21 sends the database 24
From the contract data attached to the image data used by the user, the usage fee data is read out (s32),
The charge amount for the user is calculated from the usage count data read from the IC card 5 and the usage fee data read from the database 24 (s33). For example, as a content of a usage agreement concluded between the author and the server, 1
When the usage fee for each use is determined, the usage fee is multiplied by the numerical value recorded as the usage count data on the IC card 5, and the server fee is added to calculate the billing amount. Of the amount paid by the user in response to the request from the server, the amount excluding the server fee is paid to the author.

FIG. 5 is a flowchart showing a processing procedure of a management program used in the image data management system. In the image data management system 1, the management program deletes attribute information only from image data for which a sales contract has been established between the user and the server, among a plurality of image data recorded on the CD-ROM 4. , Is supplied to the user from the server via the CD-ROM 4, and is installed in the user device 3 by the CD-ROM driver 32.

While the management program is running, the control unit 31 of the user device 3 waits for the input of a start command of the use process of the image data (s 41). When you enter
The key data reading process is executed via the card reader / writer 33 (s42). If the key data cannot be read because the IC card 5 supplied from the server is not inserted into the card reader / writer 33, the control unit 31 displays an error message on the display 35, etc. Is performed and the process returns to the standby state (s43 → s44). If the key data can be read from the key data recording area 52 of the IC card 5,
The control unit 31 performs authentication processing of the read key data (s45). If the content of the read key data is not appropriate, the control unit 31 performs error processing and returns to the standby state (s46 →
s44).

If the read key data is correct, the control section 31 reads out the image data for which the attribute information is to be deleted from the CD-ROM 4 based on the code data included in the key data (s47). Then, the attribute information added to the read image data is deleted according to a predetermined procedure (s48). A well-known technique can be used for the process of deleting the attribute information. The control unit 31 converts the image data from which the attribute information has been deleted into a CD-R
After writing to the work area 43 of the OM4 (s49),
The usage count data is read from the usage count recording area 53 of the IC card 5 (s50), and the read usage count data is incremented and written to the usage count recording area 53 of the IC card 5 (s51, s52).

Next, the control section 31 waits for the input of an output command of image data (s53). When the user inputs a predetermined output command via the keyboard 32, the control section 31 stores the command in the work area 43 of the CD-ROM 4. The written image data is output to an output device such as the printer 36 (s54). Thereafter, the controller 31 deletes the image data written in the work area 43 of the CD-ROM 4 (s55).

By the above processing, the CD-RO is transmitted from the server.
Using the management program supplied to the user via M4, the attribute information added to the image data specified by the key data supplied to the user from the server via the IC card 5 can be deleted, Only image data for which a sales contract has been established between the user and the server can be selectively made available to the user.

Each time the attribute information is deleted from the image data, the count value of the number of times of use in the IC card 5 is incremented, and each time the image data with the attribute information deleted is output to the output device, the image data is deleted. Therefore, the number of times the image data is used in the user device 3 can be accurately counted.

In the image data management system 1 according to this embodiment, the management program is supplied to the user via the CD-ROM 4 in which a plurality of image data to which attribute information is added is recorded. To IC
Can be recorded on the card 5 and supplied to the user;
-The management program can be supplied to the user by recording on a recording medium other than the ROM 4 or the IC card 5 or via a data communication line such as a public telephone line network.

Further, sales contract data such as a usage pattern, which is a part of the contents of the sales contract established between the user and the server, is recorded on the IC card 5 for supplying key data from the server to the user. You may make it. here,
The sales contract data to be recorded on the IC card 5 is, for example,
This is data such as the author name, usable period, use limit number, and use range of image data for which a sales contract has been established.

Further, when the usable period of the image data is specified in the sales contract concluded between the user and the server, the control unit 31 of the user-side apparatus 3
The attribute information deleted from the image data may be created at the elapse of the usable period based on the management program with reference to the usable period recorded on the card 5 and added to the image data again.

In addition, in the image data management system 1 according to the above-described embodiment, the case where image data of an art work such as a painting is sold has been described as an example. The present invention can be similarly applied to image data other than.

[0063]

According to the first, fourth, seventh, eleventh, and fourteenth aspects of the present invention, image data to which attribute information indicating whether or not the user can use the image data is recorded on an image data recording medium, and the image data is recorded from a server in advance. The management data is supplied to the user, and the management data for managing the attribute information added to the image data selected by the user based on the contents of the usage contract after the usage contract is established is recorded on the management data recording medium. By supplying to the user from the server,
Using the management data recorded on the management data recording medium, manages the attribute information added to the image data selected by the user among the plurality of image data recorded on the image data recording medium, and manages the image data. Can be used, and the task of selling image data desired by the user can be performed easily and in a short time.

According to the second, fifth, eighth, tenth, twelfth and fifteenth aspects of the present invention, the management program for managing the attribute information of the image data specified by the identification data is provided with the image data use contract. It is recorded on the image data recording medium together with the image data before the establishment and distributed to the user from the server in advance, or after the contract for use of the image data is established and recorded on the management data recording medium together with the identification data and transmitted from the server to the user. By supplying the image data, the user is recorded on the image data recording medium or the management data recording medium for the image data specified by the identification data supplied via the management data recording medium after the conclusion of the use contract of the image data. The management program is used to attach the selected image data among the image data recorded on the image data recording medium. To manage the attribute information and can be a usable state the image data, it is possible to perform the work to sell image data that the user desires to use easily and in a short time.

According to the third, sixth, ninth, thirteenth, and sixteenth aspects of the present invention, the user calculates the usage fee based on the usage status of the image data recorded on the management data recording medium, so that the management data recording is performed. Only the data stored in the medium manages the use state of the image data, and
It is possible to calculate the amount of money to be charged for the use of the image data, and it is possible to easily and quickly execute the operation of selling the image data desired by the user.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an image data management system according to an embodiment of the present invention.

FIG. 2 is a CD used in the image data management system.
FIG. 3 is a diagram illustrating a configuration of a recording area of a ROM.

FIG. 3 is an IC used in the image data management system.
FIG. 3 is a diagram illustrating a configuration of a recording area of a card.

FIG. 4 is a flowchart showing a processing procedure of a server-side device constituting the image data management system.

FIG. 5 is a flowchart showing a processing procedure of a management program executed in a user device constituting the image data management system.

[Explanation of symbols]

 1-image data management system 2-server-side device 3-user-side device 4-CD-ROM (image data recording medium) 5-IC card (management data recording medium) 21, 31-control unit 24-database 25, 33- CD-ROM driver 26, 34-card reader / writer

Claims (16)

[Claims] An image data management system including a server-side device and a user-side device, wherein the server-side device stores, on an image data recording medium, image data to which attribute information indicating whether the user-side device can be used is added. The user device executes a recording process and a process of recording management data for processing attribute information added to the image data on the management data recording medium based on the content of the usage contract for the image data. Executing a process of reading management data recorded on a management data recording medium and a process of processing attribute information of image data recorded on the image data recording medium using the read management data. Image data management system. 2. The management data is added to identification data for specifying image data for which a use contract has been established, and to image data selected from a plurality of image data recorded on an image data recording medium based on the identification data. A management program for managing the attribute information, wherein the server-side apparatus records the management program on an image data recording medium or a management data recording medium and records identification data on the management data recording medium. Item 2. The image data management system according to Item 1. 3. The user-side device executes a process of writing usage information of image data stored on an image data recording medium to a management data recording medium, and the server-side device writes the usage information read from the management data recording medium. The image data management system according to claim 1, wherein the image data management system executes a process of calculating a charge amount as a price for use of image data based on the image data. 4. A process for recording image data to which attribute information indicating whether or not use is possible in a user device on an image data recording medium, and an attribute added to the image data based on the contents of a contract for using the image data. A server device of an image data management system, comprising: a control unit that executes processing for recording management data for managing information on a management data recording medium. 5. A process for recording, on an image data recording medium, image data to which attribute information indicating whether or not use is possible in a user side device, and identifying data for specifying image data for which a use contract has been established. Processing for recording on a management data recording medium, and a management program for managing attribute information added to image data selected based on identification data from a plurality of image data recorded on the image data recording medium, and recording the image data. 5. The server device of the image data management system according to claim 4, wherein the server device executes a process of recording on a medium or a management data recording medium. 6. The image data according to claim 4, wherein the control unit executes a process of reading usage information from a management data recording medium and a process of calculating a billing amount based on the read usage information. Server device of the management system. 7. A process for reading management data recorded on a management data recording medium and a process for managing attribute information of image data recorded on an image data recording medium using the read management data. A user-side device of the image data management system, comprising a control unit for performing the operation. 8. A process for reading out identification data recorded on a management data recording medium, a process for reading out a management program recorded on an image data recording medium or a management data recording medium, the control unit comprising: 8. The user-side device of the image data management system according to claim 7, wherein the user device executes a process of managing attribute information of image data specified by identification data among image data recorded on the medium based on a management program. 9. The user of the image data management system according to claim 7, wherein the control unit executes a process of writing usage information of the image data stored in the image data recording medium to a management data recording medium. Side device. 10. A management program for managing image data to which attribute information indicating whether or not use is possible in a user side device and attribute information added to the image data based on the contents of a contract for use of the image data. An image data recording medium for an image data management system, wherein the image data is recorded. 11. A management data recording medium for an image data management system, comprising a management data recording area for selectively managing attribute information added to any of a plurality of image data. 12. A recording area of the management program, wherein a recording area of identification data for specifying image data for which a usage contract has been established among a plurality of image data, and attribute information added to the image data specified by the identification data. And a recording area of a management program for managing the program.
3. A management data recording medium for the image data management system according to 1. 13. The management data recording medium of the image data management system according to claim 11, further comprising a recording area of a use state of image data by a user. 14. An image data to which attribute information indicating whether or not the user can use the image data is recorded on an image data recording medium before the image data use contract is concluded and supplied from the server to the user. An image data management method, characterized in that management data for managing attribute information added to image data based on the contents of a use contract after establishment is recorded on a management data recording medium and supplied from a server to a user. 15. An image data specified by the identification data, wherein identification data for specifying the image data for which the usage contract has been established after the usage contract for the image data has been established is recorded on a management data recording medium and supplied from the server to the user. A management program for managing the attribute information of the server is recorded on the image data recording medium before the contract for using the image data is concluded, or recorded on the management data recording medium together with the identification data after the contract for using the image data is concluded. The image data management method according to claim 14, wherein the image data is supplied to a user from a computer. 16. The usage state of image data is recorded on a management data recording medium and returned from a user to a server, and the server calculates a charge based on the usage state recorded on the management data recording medium. 15. The image data management method according to item 15.