JP5879243B2 - Image display apparatus, image reading apparatus, and image forming apparatus - Google Patents

Description

  The present invention relates to an image display apparatus, an image reading apparatus, and an image forming apparatus, and more particularly to a technique for controlling display by a display unit in accordance with a user's color vision characteristics.

  Along with technological innovation, many display devices are changing from monochromatic expression such as black and white to multicolor expression. Electronic device pilot lamps, mobile phones, personal computers, ATMs, and vending machine displays are often expressed in color. The display devices provided in the image forming apparatus are also colorized, and the convenience of users is enhanced by the color expression ability.

  However, since many color display objects are created considering the way that general color vision is visible to public facilities, etc., for non-standard color vision, the difference in color is different from the others. There is a problem that it is difficult to distinguish items that need to be identified, for example, the color map of the route map of the subway station displayed on the display, and it is difficult to identify each image displayed in a different color on the display screen.

  In recent years, the need for a universal color design (or color barrier-free) has been advocated so that all people can use equipment and facilities equally regardless of their color vision personality. Display is required. For example, Patent Document 1 below discloses an image forming apparatus that performs a color vision test using a panel display and varies the display contents depending on the result.

JP 2005-225138 A

  As described above, a display based only on a general color sense person lacks consideration for an uncommon color sense person who is difficult to see the display. On the other hand, it is not preferable to apply an expression adapted to a non-general color vision person to a general color vision person because the degree of freedom of expression for the general color vision person is limited. For this reason, it is preferable to be able to express appropriately according to the difference in color perception of each viewer, and it is preferable that the expression can be performed quickly. The technique disclosed in Patent Document 1 requires a color vision test in order to perform display according to the difference in color vision of each viewer, and takes time to display.

  The present invention has been made to solve the above-mentioned problem, and according to the difference in color perception of the viewer, by causing the display unit to quickly perform appropriate display for each viewer, the difference in individuality in color perception Regardless of whether or not everyone is able to use equipment and facilities equally.

The invention described in claim 1 includes a display unit that displays an image, a login processing unit that receives a login request from the user or a login request from the user's portable terminal having an automatic login function, and performs a login process; The color vision information about the logged-in user permitted to log in by the login processing unit, the color vision information storage unit that stores the color vision information of each user, or the color vision information acquisition unit that acquires from the portable terminal, and the color vision information acquisition unit In accordance with the acquired color vision information of the logged-in user, the display mode changing unit that changes the display mode of the image to be displayed by the display unit, and the display mode changed by the display mode changing unit A control unit for causing the display unit to perform display;
An image reading unit that reads the document and generates image data,
The control unit causes the display unit to display a preview image of the image data generated by the image reading unit with the color scheme changed by the display mode changing unit,
Furthermore, an other user designation receiving unit that receives an instruction to designate another user from the login user;
Another user information acquisition unit that acquires the color vision information of the other user received by the other user designation reception unit from the color vision information storage unit,
When the other user information acquisition unit acquires the color vision information of the other user, the display mode change unit uses the color vision information of the other user, regardless of the color vision information of the login user, The color change of the image data generated by the image reading unit is changed, and the control unit is a preview image of the image data generated by the image reading unit with the color change changed using the color vision information of the other user. Is displayed on the display unit.

  In this invention, the color vision information of the login user is acquired by the color vision information acquisition unit, and the display mode changing unit changes the display mode of the image data to be displayed by the display unit according to the color vision information, and the change is made. In such a display mode, the control unit causes the display unit to display the image data. Thereby, according to the present invention, the display content by the display unit is changed according to the color vision information of the logged-in user, so that the visibility of each user as a viewer corresponds to the difference in color vision of each user. It is possible to quickly display an appropriate display with excellent quality.

  Further, in the present invention, the display mode changing unit corrects the color scheme of the preview image according to the color vision information of the logged-in user, so that the preview image displayed on the display unit such as during scanning is also viewed as a viewer. Appropriate color expression is possible according to the color vision of each user.

  Further, according to the present invention, when printing or scanning is performed for another person, for example, according to the intention of the login user, the color arrangement of the image data related to the printing or scanning is matched with the color vision of the other person. It becomes possible to change.

The invention according to claim 2 is the image reading apparatus according to claim 1, wherein the change instruction is received from the login user for a change instruction as to whether or not to change the display form by the display form changing unit. A reception unit;
The display mode changing unit is configured to change the display mode using the color vision information when the change instruction is received by the change instruction receiving unit.

  In the present invention, the login user can select whether or not to perform the display mode by the display mode changing unit according to his / her intention.

Further, the invention according to claim 3 is the image reading apparatus according to claim 1 or 2, wherein the color adjustment for accepting a color adjustment instruction for adjusting the color of the display screen of the display unit from the login user. An instruction receiving unit;
A color vision information update unit that updates the stored color vision information of the logged-in user using color adjustment information indicated by the color adjustment instruction received by the color adjustment instruction reception unit;
The display mode changing unit changes the display mode using the updated color vision information.

  According to the present invention, since the login user can adjust the color of the display content by the display unit, the display content can be displayed in a display mode that more appropriately matches the color vision of each viewer. Furthermore, since the color adjustment result is reflected in the color vision information of the logged-in user so that the user's color vision information can be adjusted at any time, the user's color vision characteristics can be specified when registering the user's color vision information. In addition, high accuracy is not required.

  According to a fourth aspect of the present invention, in the image reading device according to any one of the first to third aspects, the display mode changing unit uses the color vision information of the login user to generate the image. The color scheme of the image data generated by the reading unit is changed.

  According to the present invention, the color arrangement of the image data generated by the image reading unit is changed based on the color vision information by changing the color arrangement using the color vision information by the display mode changing unit for the image data generated by the image reading unit. Since the color arrangement of the image data generated by the image reading unit is changed so as to match the color of the changed preview image, as confirmed with the preview image, image formation or scanning performed using the image data is performed. As for the result, it is possible to obtain an appropriate color expression according to the color vision of each user as a viewer.

The invention according to claim 5 is the image reading apparatus according to any one of claims 1 to 4, wherein the color vision information storage unit stores the color vision information for each type of color vision characteristics. A matrix that holds a correspondence relationship with the set display object color scheme of the display unit and a conversion formula set for each type of color vision characteristic are stored,
The display mode changing unit determines the color arrangement of the display object using the matrix, and performs color conversion of the preview image using the conversion formula.

  According to the present invention, for a display object displayed in a predetermined color, such as an operation button, displayed on the display unit, the color arrangement is determined with reference to the matrix, while the display object can be read by the image reading unit. With respect to the preview image in which the contents to be displayed and the color scheme are sequentially changed by the generated image data, the color scheme can be changed appropriately according to the characteristics of each display content by performing the color conversion by the above conversion formula.

According to a sixth aspect of the present invention, there is provided the image reading device according to any one of the first to fifth aspects,
An image forming unit that forms an image on a recording medium using the image data generated by the image reading unit,
The display mode changing unit changes the color scheme of the image data generated by the image reading unit using the color vision information,
The control unit is an image forming apparatus that causes the image forming unit to perform image formation using the image data whose color scheme has been changed by the display mode changing unit.

  According to the present invention, it is possible to promptly display the display unit appropriately for each viewer according to the difference in color perception of the viewer, and the device is equal to all people regardless of the difference in individuality in color vision. And the facility can be made available.

1 is a block diagram illustrating a configuration of an image forming system including an image forming apparatus according to an embodiment of the present invention. It is a front sectional view showing the structure of the image forming apparatus. It is a functional block diagram which shows roughly the main internal structures of an image forming apparatus. It is a flowchart which shows the process which changes the color scheme of an operation screen according to a user's color vision characteristic. It is a flowchart which shows the process which changes the color scheme of a preview image according to a user's color vision characteristic. It is a flowchart which shows the process which changes the color scheme of the image used for a copy / scan according to a user's color vision characteristic.

  Hereinafter, an image display apparatus, an image reading apparatus, and an image forming apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an image forming system including an image forming apparatus according to an embodiment of the present invention. In the system shown in FIG. 1, a plurality of image forming apparatuses 1 are connected to a network 200, and an authentication server 201 and an information server 202 are connected to the network 200.

  The image forming apparatus 1 is, for example, a multifunction peripheral (MFP) that has a copy function, a printer function, a scanner function, a facsimile function, and the like.

  The authentication server 201 manages registration information (user ID, password, etc.) of authorized users, and performs authentication processing of users who request login to the image forming apparatus 1 using the registration information.

  The information server 202 includes a storage unit as a color vision information storage unit, and stores user account information 203 for each registered regular user (a user permitted to log in to the image forming apparatus 1) in the storage unit. I remember it. The user account information 203 includes an account (user ID) of each user and setting values of one or more setting items that can be set in the image forming apparatus 1 by the user.

  The user account information 203 includes information indicating the color vision characteristics of the user (hereinafter referred to as color vision information) as the setting item. The color vision information may be set in the information server 202 when a user account is created, or the user can log in the image forming apparatus 1 or the information server 202 and set it individually to protect personal privacy. It may be stored in the information server 202 later. After the color vision information is stored in the information server 202, when the user logs in to the image forming apparatus 1, the image forming apparatus 1 acquires the color vision information in the user account information for the user. The information server 202 manages the user account information 203 so that the same color vision information is reflected on each image forming apparatus 1 regardless of which image forming apparatus 1 on the network 200 is logged in. It becomes possible to make it.

  The color vision (color vision characteristics) can be determined by, for example, a manufacturer of the image forming apparatus 1, a maintenance person, or a method of selecting and selecting a category of the Japanese Ophthalmological Society or a category recommended by the NPO Color Universal Design Organization (CUDO), or It is set for each user by an administrator or the like, and is stored in the information server 202 as color vision information.

  Furthermore, as a means for adjusting color vision, while displaying some patterns of typical color schemes (combinations of two adjacent colors) that are difficult to discriminate in the type selected from any one of the above types, the L, M, and S cones are displayed. A method of specifying an individual's color vision characteristic by a method of finely adjusting a body sensitivity parameter may be adopted. As described above, in addition to selection from typical types, the individual's color vision characteristics are specified by a very simple procedure by fine adjustment using a test pattern.

Alternatively, a personal account and color vision information 301 may be stored in the personal mobile terminal 300 and the user may log in to the image forming apparatus 1 using the mobile terminal 300. For example, by providing the image forming apparatus 1 with a Bluetooth (registered trademark) hot spot (registered trademark) function, when the user holding the portable terminal 300 approaches the image forming apparatus 1, the portable terminal 300 forms an image. It is also possible to log in to the image forming apparatus 1 by transmitting the account and color vision information 301 to the apparatus 1. Personal color vision information 301 is registered in the portable terminal 300, and the image forming apparatus 1 acquires the personal color vision information 301 from the portable terminal 300 as temporary information each time the user logs in. In this case, it is not necessary to store personal color vision information as personal information in the external information server 202 at risk of leakage.

  The mobile terminal 300 is a communication device such as a mobile phone, a smartphone, or a tablet PC.

  Next, the image forming apparatus 1 will be described with reference to FIG. FIG. 2 is a front sectional view showing the structure of the image forming apparatus 1.

  The image forming apparatus 1 includes a main body unit 2, a stack tray 3 disposed on the left side of the main body unit 2, an image reading unit 5 disposed on the upper part of the main body unit 2, and an upper side of the image reading unit 5. And a document feeding unit 6 disposed.

  An operation unit 47 is provided at the front part of the image forming apparatus 1. The operation unit 47 includes a start key 471 for a user to input an execution instruction for each function executable by the image forming apparatus 1, and a numeric keypad 472 for inputting an execution condition for each function such as the number of copies to be printed. , Displays each setting screen for inputting the execution condition of each function, and resets the display unit 473 including a liquid crystal display having a touch panel function for these various inputs and the setting contents set in the display unit 473 A reset key 474 for stopping, a stop key 475 for stopping a function being executed, and a function switching key 477 for switching between a copy function, a printer function, a scanner function, and a facsimile function.

  The display unit 473 displays an operation screen including operation buttons related to the touch panel function, and also displays a preview image of the image data generated by the image reading unit 5.

  The image reading unit 5 includes a scanner unit 51 including a CCD (Charge Coupled Device) sensor and an exposure lamp, and a document table 52 and a document reading slit 53 made of a transparent member such as glass.

  The scanner unit 51 is configured to be movable by a drive unit (not shown). When reading a document placed on the document table 52, the scanner unit 51 is moved along the document surface at a position facing the document table 52, and the document image is scanned. The image data acquired while scanning is output to the control unit 10 (FIG. 3) described later. Further, when reading a document fed by the document feeding unit 6, the document is moved to a position facing the document reading slit 53 and synchronized with the document feeding operation by the document feeding unit 6 via the document reading slit 53. The image of the original is acquired and the image data is output to the control unit 10.

  The document feeding unit 6 includes a document placing table 61 for placing a document, a document discharging unit 62 for discharging a document whose image has been read, and a document placed on the document placing table 61 one by one. A document transport mechanism 63 including a paper feed roller (not shown), a transport roller (not shown), and the like for feeding the paper to a position facing the document reading slit 53 and discharging it to the document discharge section 62 is provided.

  The document conveyance mechanism 63 further includes a sheet reversing mechanism (not shown) that reverses the document and reversely conveys the document to a position facing the document reading slit 53, and scans the images on both sides of the document via the document reading slit 53. 51 can be read.

  The document feeding unit 6 is provided so as to be rotatable with respect to the main body unit 2 so that the front side thereof can move upward. By moving the front side of the document feeder 6 upward to open the upper surface of the document table 52, the user can place a read document, for example, a book in a spread state, on the upper surface of the document table 52. ing.

  The main body 2 includes a plurality of paper feeding cassettes 461, a paper feeding roller 462 that feeds recording paper from the paper feeding cassette 461 one by one and transports it to the image forming unit 40, and a recording paper transported from the paper feeding cassette 461. And an image forming unit 40 for forming an image.

  The image forming unit 40 includes a charge removing unit 421 that removes residual charges from the surface of the photosensitive drum 43, a charging unit 422 that charges the surface of the photosensitive drum 43 after charge removal, and image data acquired by the scanner unit 51. Based on the electrostatic latent image, an exposure unit 423 that outputs a laser beam to expose the surface of the photosensitive drum 43 to expose the surface of the photosensitive drum 43 to form an electrostatic latent image on the surface of the photosensitive drum 43. In addition, cyan (C), magenta (M), yellow (Y), and black (K) toner images of respective colors are formed on the developing units 44K, 44Y, 44M, and 44C, and the respective colors formed on the photosensitive drum 43. The transfer drum 49 on which the toner image is transferred and superimposed, the transfer unit 41 that transfers the toner image on the transfer drum 49 to the paper, and the paper on which the toner image is transferred are heated to set the toner image on the paper. A fixing unit 45 for, provided in the sheet conveying path of the image forming unit 40 includes a conveying roller 463, 464 or the like for conveying the recording sheet to the stack tray 3 or the discharge tray 48.

  When forming images on both sides of the recording paper, the image forming unit 40 forms an image on one side of the recording paper, and then the recording paper is nipped by the conveyance roller 463 on the discharge tray 48 side. To do. In this state, the conveyance roller 463 is reversed to switch back the recording paper, and the recording paper is sent to the paper conveyance path L and conveyed again to the upstream area of the image forming unit 40, and an image is formed on the other surface by the image forming unit 40. After the formation, the recording paper is discharged to the stack tray 3 or the discharge tray 48.

  FIG. 3 is a block diagram illustrating an outline of the internal configuration of the image forming apparatus 1. The image forming apparatus 1 includes a control unit 10 that controls the function of each unit of the apparatus, the image reading unit 5, an image memory 120 that temporarily stores data of a document image read by the image reading unit 5, and the like. The image forming unit 40, the operation unit 47, and a display unit 473 that is a part of the operation unit 47 and includes an LCD (Liquid Crystal Display) or the like.

  Note that the operation unit 47 is, for example, a touch operation of a numeric keypad 472 pressed by the user according to an operation guide displayed on the display unit 473 or an operation button (tenkey, keyboard, etc.) displayed on the display unit 473 by a touch panel function. By performing the operation, various input operations can be performed on each setting screen.

  In addition, the image forming apparatus 1 includes a facsimile communication unit 140, a mobile terminal communication unit 150, a storage unit 170, a data transmission / reception unit 180, and an image processing unit 190.

  The facsimile communication unit 140 executes various functions necessary for facsimile communication, and transmits and receives image data from the external facsimile apparatus 80 through the public line 81.

The mobile terminal communication unit 150 includes a communication device such as Bluetooth (registered trademark) and provides a hot spot (registered trademark). The portable terminal 300 can access the image forming apparatus 1 through the hot spot (registered trademark). Further, the image forming apparatus 1 can read the color vision information 301 from the mobile terminal 300.

  The storage unit 170 is composed of, for example, a magnetic disk such as an HDD, and stores image data obtained by reading by the image reading unit 5.

  The data transmission / reception unit 180 receives data to be recorded by the image forming unit 40 from a personal computer connected via a network via an intranet or a LAN (Local Area Network).

  The image processing unit 190 performs editing / processing (encoding / decoding processing, enlargement / reduction processing, compression / decompression processing) processing and the like on the image data read by the image reading unit 5.

  The control unit 10 includes a CPU, a ROM that stores an operation program for each part of the apparatus, such as a control program that controls an image forming operation, a RAM that temporarily stores image data and the like, a RAM that functions as a work area, and various control parameters. A memory such as a non-volatile memory that stores setting values is provided, and an operation program stored in the ROM is executed by the CPU, thereby controlling the operation of each part of the apparatus.

  Further, the control unit 10 includes a login processing unit 101, a color vision information acquisition unit 102, a color correction unit 103, another user information acquisition unit 104, a color adjustment instruction reception unit 105, a user information update unit 106, a control unit Part 100.

For example, the control unit 10 operates in accordance with a color conversion program stored in the storage unit 170, whereby the login processing unit 101, the color vision information acquisition unit 102, the color correction unit 103, and the other user information acquisition unit 104. And a color adjustment instruction receiving unit 105, a user information updating unit 106, and a control unit 100 (the control unit 100 is a functional part related to a color change process according to color vision characteristics described later).

In addition, the control unit 10 includes a hardware circuit, the login processing unit 101, the color vision information acquisition unit 102, the color correction unit 103, the other user information acquisition unit 104, the color adjustment instruction reception unit 105, the user The information update unit 106 and the control unit 100 (similar to the above, a functional part related to a color arrangement changing process according to color vision characteristics described later) may be provided.

  The control unit 100 controls each mechanism provided in the image forming apparatus 1 and controls overall operation of the image forming apparatus 1. In addition, the control unit 100 controls each operation that is necessary at the time of color change processing according to color vision characteristics described later.

  The login processing unit 101 receives login information that is a combination of a user ID and a password input by the user to the operation unit 47 and performs login processing.

  When the login processing unit 101 receives the login information input by the user from the operation unit 47, the login processing unit 101 transmits the received login information to the authentication server 201. The authentication server 201 performs user authentication using the transmitted login information. When the user authentication is established, the authentication server 201 transmits authentication establishment information indicating that the authentication is established to the information server 202. When the authentication establishment information is transmitted from the authentication server 201, the information server 202 transmits user account information of a login user who is a user who has successfully logged in to the image forming apparatus 1. In the image forming apparatus 1, the login processing unit 101 receives the user account information from the information server 202 via the data transmission / reception unit 180. The login process refers to a process necessary from the reception of the login information by the login processing unit 101 to the reception of user account information.

  As described above, when the image forming apparatus 1 provides a Bluetooth (registered trademark) hot spot (registered trademark), the image forming apparatus 1 receives the login information and the like from the portable terminal 300. Receive via the communication unit 150. When login is performed by the mobile terminal 300, the mobile terminal 300 also transmits the login information and the color vision information and account of the user who is the owner of the mobile terminal 300 to the image forming apparatus 1. .

  The color vision information acquisition unit 102 acquires the color vision information of the login user from the information server 202 or the portable terminal 300.

  The color correction unit (display mode changing unit) 103 performs a process of changing the color arrangement of an image to be displayed by the display unit 473 according to the color vision information of the user. For example, the color correction unit 103 stores a matrix 1031 and a conversion formula 1032 corresponding to the color vision information included in the user account information.

  The matrix 1031 is used to determine the color scheme of objects such as operation buttons displayed on the display unit 473 for each color vision characteristic indicated by the color vision information. In the matrix 1031, the color scheme of each operation button (display object) displayed on the display screen of the display unit 473 is defined for each type of color vision characteristic (color vision information). Note that the matrix 1031 may represent a universal color scheme that can be applied universally, in addition to the standard color scheme for a general color vision person. The color correction unit 103 determines the color arrangement of display objects such as operation buttons displayed on the display unit 473, that is, an object displayed with a predetermined color arrangement using the matrix 1031.

  The conversion formula 1032 is a color conversion formula used for automatically converting a standard color scheme for a general color vision person to determine a color scheme, and is set for each type of color vision characteristic, and for each color vision characteristic indicated by the color vision information To decide. The conversion formula 1032 is used, for example, to change the color arrangement of a preview image in which the contents to be displayed and the color arrangement are sequentially changed by image data generated by reading by the image reading unit 5.

  Note that the automatic conversion of the standard color scheme can be performed using a known conversion formula, for example, a conversion formula disclosed in JP 2010-183487 A, JP 2011-182006 A, or the like as a count.

  As described above, the color correction unit 103 also uses the conversion formula 1032 corresponding to the color vision information of the logged-in user when the image data read by the image reading unit 5 is displayed on the display unit 473 as a preview. The color of the preview image is corrected by converting the image data read by the image data into a color tone converted into a color gamut that can be easily recognized by the login user. That is, the color vision information of the logged-in user is also applied to a preview display during copying or scanning. Note that when the color vision information is not registered in the user account information or is registered as normal color vision, the color correction of the preview image is not performed.

  For example, when the display object and the preview image are mixed in the display screen of the display unit 473, the color correction unit 103 uses the matrix 1031 for the display object according to the color vision information of the login user. The color scheme is changed, and the preview image is subjected to color conversion using the above conversion formula 1032, and the control unit 100 displays each image thus color-converted separately on the display unit 473 on one display screen. You may make it display by mixing each. Therefore, the color correction unit 103 generates a predetermined display object displayed in a predetermined color scheme and image data read by the image reading unit 5 each time when forming a display screen for displaying a display object and a preview image. As described above, it is desirable to change the color schemes using different methods as described above, and then generate a preview image by combining the images after the color scheme change. Thereby, the screen display which consists of color expressions suitable for visual recognition for a login user can be displayed.

  Further, the color correction unit 103 corrects the color of the image data related to printing or scanning so that the color of the image data related to printing or scanning matches the color of the preview image. By matching the color gamut conversion (color change) used for preview display with the color gamut conversion during actual printing or scanning, a printed matter or scanned image in a color gamut appropriate for visual recognition for the color vision of the logged-in user is obtained. be able to. Specifically, when the image data read by the image reading unit 5 is displayed as a preview, when the conversion formula 1032 for converting the color gamut by conversion from the RGB space to the RGB space is used, the image read by the image reading unit 5 is used. RGB-RGB conversion similar to the data is performed to obtain image data for printing or scan images. Needless to say, conversion is not performed when color vision information is not registered in the user account information or when it is registered as normal color vision.

  Printing or scanning may be performed by the logged-in user for his / her own use, or may be printed or scanned for others. Therefore, at the time of printing or scanning, it is desirable to be able to select whether to print or scan after conversion suitable for the color vision information of the logged-in user, or to print or scan the original as it is. The image forming apparatus 1 can make this selection. If the registered color vision information is normal color vision or is not registered, this selection step can be omitted.

  The other user information acquisition unit 104 acquires color vision information about another user designated by the operation of the operation unit 47 by the login user from the information server 202. For example, when an instruction to perform color conversion for another user is input from the operation unit 47 by the login user, the other user information acquisition unit 104 displays a list of users (user IDs) that can log in to the image forming apparatus 1 and Each user's color vision information is acquired from the information server 202. The control unit 100 causes the display unit 473 to display the user list and the color vision information of each user. When another user is designated from the displayed user list by the operation of the operation unit 47 by the login user, the other user information acquisition unit 104 stores the color vision information stored in association with the designated user. Is identified. When the color vision information of another user is acquired by the other user information acquisition unit 104 in this way, the color correction unit 103 performs printing or printing using the color vision information of the other user regardless of the color vision information of the logged-in user. Change the color scheme of image data related to scanning.

  The color adjustment instruction accepting unit 105 gives a color adjustment instruction for adjusting the color of the display object of the operation screen displayed on the display unit 473 or the preview image according to the operation of the operation unit (color adjustment instruction accepting unit) 47 by the login user. Accept. For example, the color adjustment instruction accepting unit 105 displays an operation button for accepting a preview image color adjustment instruction on the display unit 473, and issues a preview image color adjustment instruction using the touch panel function based on the operation of the operation button by the operator. Accept. The color correcting unit 103 further changes the color arrangement of the display object or the preview image in accordance with the color adjustment instruction received by the color adjustment instruction receiving unit 105.

  The user information updating unit 106 uses the color adjustment information performed by the color adjustment instruction accepting unit 105 as auxiliary information of the color vision information of the login user, and uses the color sense of the login user stored in the information server 202 or the portable terminal 300. Update the information content. The color correction unit 103 uses the updated color vision information to change the color arrangement of the display object or the preview image.

  As a result, the color of the display content of the display unit 473 can be further adjusted according to the actual appearance of the login user, and the result of the color adjustment can be fed back to the color vision information of the login user. . Whether or not to perform the feedback is desirably selectable according to the presence or absence of a feedback execution instruction input by operating the operation unit 47 by the login user. As described above, the result of color adjustment by the logged-in user is reflected in the color vision information of the logged-in user, so that the user's color vision information can be adjusted at any time. It is not necessary to specify high accuracy to specify the characteristics.

  The image display apparatus according to the embodiment of the present invention includes the display unit 473, the login processing unit 101, the color vision information acquisition unit 102, the color correction unit 103, the other user information acquisition unit 104, and a color adjustment instruction. The receiving unit 105, the user information updating unit 106, and the control unit 100 are provided. Note that the image display apparatus according to the embodiment of the present invention further includes an operation unit 47 as long as it is necessary in the processing described below.

  The image reading apparatus according to the embodiment of the present invention further includes an image reading unit 5 in addition to the image display apparatus according to the embodiment of the present invention.

  Next, color change processing according to the color vision characteristics of the user in the image forming apparatus 1 will be described.

  First, a process for changing the color scheme of the operation screen according to the color vision characteristics of the user will be described. FIG. 4 is a flowchart showing processing for changing the color scheme of the operation screen according to the color vision characteristics of the user.

  When the main power supply of the image forming apparatus 1 is turned on, the control unit 100 causes the display unit 473 to display a login screen (not shown).

  When the user ID and password are input by the operation of the operation unit 47 by the user when the login screen is displayed, the login processing unit 101 transmits the input user ID and password to the authentication server 201, and the result of the user authentication Is executed from the authentication server 201 (S1).

  For example, when the user ID and password are input, the login processing unit 101 transmits the user ID and password to the authentication server 201. The authentication server 201 performs user authentication using the received user ID and password. When the user authentication is established, the authentication server 201 transmits authentication establishment information indicating authentication establishment to the information server 202. When the information server 202 receives the authentication establishment information, the information server 202 transmits user account information 203 corresponding to the user ID to be authenticated to the image forming apparatus 1. The login processing unit 101 of the image forming apparatus 1 receives authentication establishment information from the authentication server 201 via the data transmission / reception unit 180, and receives the user account information 203 from the information server 202. When the user authentication is not established in the authentication server 201, the login processing unit 101 receives authentication failure information indicating that the user authentication is not established from the authentication server 201.

Further, when the image forming apparatus 1 provides a Bluetooth (registered trademark) hot spot (registered trademark), when a user carrying the portable terminal 300 having an automatic login function enters the communication range of the image forming apparatus 1 Thus, the mobile terminal communication unit 150 of the image forming apparatus 1 receives an automatic login request from the mobile terminal 300. The login processing unit 101 receives the login request, transmits the user ID and password included in the login request to the authentication server 201, and performs the same login process as described above.

  When the login of the user is recognized by the authentication server 201 and the login processing unit 101 receives the authentication establishment information and the user account information 203, the color vision information acquisition unit 102 is included in the user account information 203 received from the information server 202. The color vision information of the login user is read (S2). That is, the color vision information acquisition unit 102 acquires, from the information server 202, the color vision information of the logged-in user who has been authenticated by the user authentication and is permitted to log in.

  If the received user account information 203 includes color vision information and the color vision information acquisition unit 102 can acquire the color vision information of the login user (YES in S3), the color correction unit 103 acquires the acquired color vision information. In accordance with the color vision information of the login user, the color arrangement of the image data of the operation button as the display object on the operation screen displayed on the display unit 473 is changed (S4). Specifically, the color correction unit 103 identifies the matrix 1031 corresponding to the acquired color vision information, and converts the color scheme of the image of each operation button using the matrix 1031.

  The control unit 100 displays the operation screen on the display unit 473 using the image data after the color change (S5).

  When the received user account information does not include color vision information and the color vision information acquisition unit 102 cannot acquire the color vision information of the login user (NO in S3), the control unit 100 newly sets the color vision information. The display unit 473 displays a message prompting the user to input an instruction as to whether or not to register. Thereafter, when the logged-in user inputs an instruction to newly register color vision information by operating the operation unit 47 (YES in S8), the control unit 100 displays the type of the Japanese Ophthalmological Society or CUDO recommendation on the display unit 473 The display unit 473 displays a screen for selecting and selecting a type from a menu. When an instruction to select the color vision type of the color vision characteristic to which the user belongs is received from the displayed types by the operation of the operation unit 47 by the user (S10), the user information update unit 106 is changed by the login user. The selected type of the color vision characteristic is transmitted to the information server 202 together with the user ID (S11). When the information server 202 receives the color vision characteristic type and the user ID, the information server 202 registers the received color vision characteristic type as color vision information in the user account information 203 indicated by the user ID.

  After S11, the processes after S4 are performed. In S4 in this case, the color correction unit 103 uses the type of the color vision characteristic selected by the login user in S10 as color vision information, and displays it as a display object on the operation screen displayed on the display unit 473 according to the color vision information. Change the color scheme of the image data of the operation buttons.

  On the other hand, if the login user does not input an instruction to newly register color vision information by operating the operation unit 47 (NO in S8), the color vision information acquisition unit 102 assumes that the color vision information of the login user is unknown and performs color correction. The unit 103 sets the matrix 1031 indicating the universal color scheme as the matrix 1031 used for the color scheme change (S9). In S4 after S9, the color correction unit 103 changes the color scheme of the image data of the operation button as the display object to the universal correspondence scheme indicated by the matrix 1031 set in S9.

  As described above, according to the above-described series of processing, the color vision information of the login user is acquired from the information server 202, and the color arrangement of the display object such as the operation button on the operation screen on the operation screen displayed on the display unit 473 is determined by the login It is changed according to the user's color vision information. As a result, according to the present embodiment, on the operation screen displayed on the display unit 473, it is possible to perform appropriate expression in accordance with the color vision of each viewer.

  After the operation screen is displayed in S5, when the login user inputs a copy operation execution instruction or a scan execution instruction by operating the operation unit 47 (YES in S6), the control unit 100 causes the image reading unit 5 to copy the document. The reading operation is performed (S7). The control unit 100 causes the display unit 473 to display the operation screen until the copy operation execution instruction or the scan execution instruction is input from the user (NO in S6) (S5).

  Next, processing for changing the color scheme of the preview image according to the color vision characteristics of the user will be described. FIG. 5 is a flowchart showing processing for changing the color arrangement of the preview image in accordance with the color vision characteristics of the user.

  When the image reading unit 5 reads the document in S7 and generates image data, the color correction unit 103 corresponds to the color vision information obtained from S2 of FIG. 4 or selected from the color vision type of the login user selected in S10. The color scheme of the preview image is changed using the conversion formula 1032 (S21). The control unit 100 causes the display unit 473 to display the preview image after the color scheme change (S22). When the color vision characteristic of the login user is general color vision (color vision information cannot be acquired in S3), or when a universal color scheme is set (S9), the color correction unit 103 Without changing the color arrangement based on the color vision information (S21), the control unit 100 causes the display unit 473 to display the preview of the image data read by the image reading unit 5 in the same color.

  As described above, the color correction unit 103 also changes the color arrangement of the preview image according to the color vision information, so that the login user can change the color arrangement of the target image before copying or scanning according to the color vision characteristics. It becomes possible to confirm with the displayed image.

  Further, after displaying the preview image, the color adjustment instruction accepting unit 105 causes the display unit 473 to display an operation screen for accepting an instruction for color adjustment of the preview image from the login user. Here, when the login user inputs a color adjustment instruction for adjusting the hue of the image to a desired color by operating the operation unit 47 (YES in S23), the color correction unit 103 performs the color adjustment. The color of the preview image is corrected according to the instruction (S25). The control unit 100 displays the preview image after the color adjustment on the display unit 473 (S26).

  Furthermore, the user information update unit 106 causes the display unit 473 to display a message that prompts the user to input an instruction as to whether or not to feed back the color adjustment content by the color adjustment instruction to the user account information 203 as the color adjustment information. . When an instruction to feed back color adjustment information is input by the operation of the operation unit 47 by the login user when this message is displayed (YES in S27), the user information update unit 106 displays the color adjustment information as the login user. Are transmitted to the information server 202 via the data transmission / reception unit 180 (S28). When the information server 202 receives the color adjustment information and the user I, the information server 202 updates the color vision information included in the user account information 203 indicated by the user ID to a content that takes the color adjustment information into consideration.

  In S23, if the login user does not input the color adjustment instruction, that is, if the login user does not adjust the color of the preview image (NO in S23), the color adjustment information is displayed after S28 and in S27. Is not transmitted to the information server 202 (NO in S27), the control unit 100 waits for an input of either a copy operation execution instruction or a scan operation execution instruction from the user (S24).

  As described above, according to the present embodiment, when the preview image is displayed on the display unit 473, the login user can adjust the color of the preview image, and the result of the adjustment is the color vision of the login user. Since it is reflected as auxiliary information, it is possible to display a preview image consisting of a color expression that exactly matches the color vision characteristics of the logged-in user, and the logged-in user can check the preview image based on the image composed of the color expression. Become.

  In the preview image color changing process, the color correcting unit 103 determines the color arrangement of display objects such as various operation buttons on the operation screen displayed on the display unit 473 by referring to the matrix 1031. The preview image is subjected to color conversion using the conversion color 1032, and the control unit 100 can display a display screen in which these images after color change are mixed on the display unit 473. As a result, it is possible to perform an appropriate color change according to the characteristics of each display content, and the login user can confirm a display screen composed of images of the color representation.

  Further, processing for changing the color scheme of an image used for copying / scanning according to the color vision characteristics of the user will be described. FIG. 6 is a flowchart showing processing for changing the color scheme of an image used for copying / scanning according to the color vision characteristics of the user.

  When the control unit 100 accepts either a copy operation execution instruction or a scan operation execution instruction in S24 of FIG. 5 (YES in S24), the control unit 100 causes the display unit 473 to display the color vision information of the login user. The display unit 473 displays a message that prompts the user to input an instruction as to whether to perform image formation associated with the copying operation or to save scan data after performing color conversion according to the above.

  Here, when the logged-in user does not input either an instruction for image formation associated with a copying operation or an instruction for saving scan data after performing color conversion according to color vision information (NO in S31). ), The color correcting unit 103 does not change the color scheme according to the color vision information, and the control unit 100 causes the image forming unit 40 to perform a copy operation using the image data generated by the image reading unit 5 as it is. Alternatively, the image reading unit 5 performs original reading, and the image data generated by the image reading unit 5 is stored in the storage unit 170 (S32).

  On the other hand, when the logged-in user performs color conversion according to the color vision information and inputs an instruction to perform image formation accompanying the copy operation or an instruction to save scan data (YES in S31), the control unit 100 causes the display unit 473 to display a message for inquiring whether the color conversion for the logged-in user itself or the color conversion for the other user is made.

  Here, when an instruction indicating that the color conversion for the logged-in user is input by the operation of the operation unit 47 by the user (YES in S33), the control unit 100 causes the image reading unit 5 to read the document. In step (S34), the color correcting unit 103 is configured with the color vision information of the login user (the color vision information acquired in S2 or the color vision type selected in S10) on the image data generated by the image reading unit 5. The color scheme is changed according to the color vision information (S35). The control unit 100 performs image formation associated with the copying operation or storage of scan data using the image data whose color scheme has been changed (S36).

  In addition, when an instruction indicating that the color conversion is for another person is input by the operation of the operation unit 47 by the user (NO in S33), the other user information acquisition unit 104 accesses the information server 202. A list of users who can log in to the image forming apparatus 1 and the color vision information associated with each user are acquired from the information server 202 (S37). The control unit 100 causes the display unit 473 to display the user list. At this time, when an instruction to select a desired other user is input from the displayed user list by the operation of the operation unit 47 by the login user (S38), the other user information acquisition unit 104 acquires the above-mentioned acquisition The color vision information associated with the selected other user is extracted from the color vision information (S39).

  Subsequently, the control unit 100 causes the image reading unit 5 to read the original (S34), and the color correction unit 103 adds the color vision information of the other users to the image data generated by the image reading unit 5. The color scheme is changed by using (S35). The control unit 100 performs image formation associated with the copying operation or storage of scan data using the image data whose color scheme has been changed (S36).

  As described above, according to the present embodiment, the color arrangement is changed with respect to the image data that is the object of image formation or scan storage accompanying the copy operation so as to match the color of the corrected preview image. At the time of scanning or scanning, it is possible to perform image formation or image data storage composed of an appropriate color expression that matches the individuality indicated by the color vision of each user.

  Further, according to the present embodiment, when copying or scanning for another user, by selecting a desired other user from the list of users who can log in to the image forming apparatus 1, the color vision of other users Depending on the information, the color scheme is changed for the image data that is subject to image formation or scan storage associated with the copying operation, so image formation or scan data that matches the color vision characteristics of other users can be stored. .

  The present invention is not limited to the configuration of the above embodiment, and various modifications can be made. For example, in the above-described embodiment, the color correction unit 103 changes the color arrangement of the display object on the operation screen according to the color vision information. Conversion to an image having a monochrome representation and having a shape or pattern different from those of other images may be performed according to the color vision information.

  In the above embodiment, when the color vision information acquisition unit 102 can read the color vision information of the login user from the user account information, the color vision information is changed according to the color vision information. When an instruction to change the color scheme according to the color vision information is input to the change instruction reception unit) by the operation of the login user, the color scheme change according to the color vision information may be performed.

  In the above embodiment, in accordance with an instruction from the logged-in user, the color arrangement change according to the color vision information of another user is performed on the image data obtained by reading the original image at the time of copying or scanning. For the display object of the operation screen and the preview image described above, the color arrangement may be changed according to the color vision information of another user in accordance with an instruction from the login user.

  Furthermore, in the above embodiment, the authentication server 201 performs user authentication and the information server 202 has user account information and transmits it to the image forming apparatus 1. In the image forming apparatus 1, the image forming apparatus 1 includes an authentication unit that performs user authentication processing similar to 201 and a color vision information storage unit that stores and manages user account information including color vision information, similar to the information server 202. User authentication and color vision information acquisition may be performed. As described above, these may be configured by either the operation of the control user unit 10 according to the color conversion program or a hardware circuit.

  In the above embodiment, the image forming apparatus according to the present invention is described using a multi-function peripheral. However, this is only an example, and other copiers, scanner apparatuses, facsimile apparatuses, and the like other than multi-function peripherals are used. An image forming apparatus may be used.

  The configuration and processing shown in the above embodiment using FIGS. 1 to 6 are only one embodiment of the present invention, and are not intended to limit the present invention to the configuration and processing.

DESCRIPTION OF SYMBOLS 1 Image forming apparatus 5 Image reading part 10 Control unit 100 Control part 101 Login process part 102 Color vision information acquisition part 103 Color correction part 1031 Matrix 1032 Conversion formula 104 Other user information acquisition part 105 Color fine adjustment part 106 User information update part 170 Memory | storage Unit 202 information server 203 user account information 300 portable terminal 301 color vision information 473 display unit 40 image forming unit

Claims (6)

Login is permitted by the login processing unit, a display unit that displays an image, a login request from a user, or a login processing unit that accepts a login request from a portable terminal of the user having an automatic login function. The color vision information about the logged-in user, the color vision information storage unit that stores the color vision information of each user, or the color vision information acquisition unit that acquires from the mobile terminal, and the color vision information of the login user acquired by the color vision information acquisition unit And a display mode changing unit that changes a display mode of an image to be displayed by the display unit, and a control that causes the display unit to display the image in a display mode changed by the display mode changing unit. And
An image reading unit that reads the document and generates image data,
The control unit causes the display unit to display a preview image of the image data generated by the image reading unit with the color scheme changed by the display mode changing unit,
Furthermore, an other user designation receiving unit that receives an instruction to designate another user from the login user;
Another user information acquisition unit that acquires the color vision information of the other user received by the other user designation reception unit from the color vision information storage unit,
When the other user information acquisition unit acquires the color vision information of the other user, the display mode change unit uses the color vision information of the other user, regardless of the color vision information of the login user, The color change of the image data generated by the image reading unit is changed, and the control unit is a preview image of the image data generated by the image reading unit with the color change changed using the color vision information of the other user. Is displayed on the display unit. A change instruction receiving unit that receives a change instruction as to whether or not to change the display mode by the display mode change unit from the login user;
The image reading apparatus according to claim 1, wherein the display mode changing unit changes the display mode using the color vision information when the change instruction is received by the change instruction receiving unit. A color adjustment instruction receiving unit that receives a color adjustment instruction for adjusting the color of the display screen of the display unit from the login user;
A color vision information update unit that updates the stored color vision information of the logged-in user using color adjustment information indicated by the color adjustment instruction received by the color adjustment instruction reception unit;
The image reading apparatus according to claim 1, wherein the display mode changing unit changes the display mode using the updated color vision information.   4. The image reading apparatus according to claim 1, wherein the display mode changing unit changes a color arrangement of the image data generated by the image reading unit using the color vision information of the login user. 5. In the color vision information storage unit, as the color vision information, a matrix that holds a correspondence relationship with the color arrangement of the display object of the display unit set for each type of color vision characteristic, and a conversion set for each type of color vision characteristic The formula is remembered,
5. The display mode changing unit according to claim 1, wherein the display object changing unit determines a color arrangement of the display object using the matrix, and performs color conversion of the preview image using the conversion formula. Image reading apparatus. The image reading apparatus according to any one of claims 1 to 5,
An image forming unit that forms an image on a recording medium using the image data generated by the image reading unit,
The display mode changing unit changes the color scheme of the image data generated by the image reading unit using the color vision information,
The control unit is an image forming apparatus that causes the image forming unit to perform image formation using the image data whose color scheme has been changed by the display mode changing unit.