WO2009142154A1 - Document file handling method, document file handling apparatus, and document file handling program - Google Patents

Abstract

Provided are a document file handling method and a document file handling apparatus, capable of easily handling a document file in a condition suitable for observation by both a person having a normal color vision and a person having an abnormal color vision (such as a color-weak person, an elderly) and outputting a document file suitable for a desired color vision property at need. The terminal (100) is provided to handle, as different layers in a layer structure, original document file data and difference data which is to be used for outputting the original document file data with a predetermined color vision property.  According to the color vision property of a user of document file data, document file data for outputting is outputted by the original document file data and the difference data according to the color vision property of the user.

Description

Document file handling method, document file handling apparatus, and document file handling program

The present invention relates to a document file handling method, a document file handling apparatus, and a document file handling program that enable document handling in a state suitable for observation with predetermined color vision characteristics such as by a color weak person or an elderly person.

“Color weakness” means that it has a weaker part in color recognition / identification than a general color vision person due to a difference in cone cells recognizing color. Here, as shown in "Basics of Color Engineering", Mitsuo Ikeda, Asakura Shoten, Table 9.1 Classification and Simplified Symbols (p189) They are classified according to the classification of green (M cone) and blue (S cone) photoreceptors and the degree of their sensitivity.

Those who have no sensitivity of any photoreceptor are called A type color weak, P type color weak in the case of the L cone, D type color weak in the case of the M cone, and T in the case of the S cone. Classified as type weak. When any one of the sensitivities is low, they are classified as PA, DA, and TA, respectively. The color vision characteristics of P, D and T color weak people are also described in “Color Engineering Basics”, Mitsuo Ikeda, Asakura Shoten, Fig. 9.13, Confusion Color Lines for Two Color Type Color Weak (p205) The colors existing on the line (the mixed color line) look exactly the same color and cannot be distinguished.

These color weak people cannot identify the colors of images normally viewed by general color blind people in the same way, and image display or image conversion for color weak people is necessary. The following non-patent literature and patent literature have been proposed for this type of color weakness. Note that the same phenomenon as color weakness can also occur in general color blind persons under a light source with a limited spectral component. This phenomenon can also occur when imaging is performed with a camera.

Also, as the elderly become older, the eye lens becomes yellow, making it difficult to see yellow on a white background and blue on a black background. In particular, yellow with high brightness on a white background tends to be difficult to distinguish. As countermeasures for such elderly people, methods for emphasizing colors whose visual ability has deteriorated have been proposed in Patent Document 6 and Patent Document 7 below.

In addition, it is described in Patent Document 8 below that colors are expressed by hatching angles.

JP 2004-178513 A Special table 2007-512915 gazette JP 2003-223635 A JP 2004-266821 A JP 2005-182432 A JP 2002-278537 A JP 2003-58875 A JP 2008-77307 A

The technology described in Non-Patent Document 1 is to improve the discriminability by changing the color by converting the display into a color that can be identified by the color weak. In this case, since the amount of color change for color-blind people and the color perceived by color-blind general color-blind people are a trade-off, when they are converted to colors that can be identified by color-blind people, the colors change greatly, and the original display and impression Will change drastically. For this reason, it is difficult to share a document between a general color blind person and a color weak person. There is also a setting for minimizing the color change, but in that case, the discriminability is not improved so much for the color weak. Further, since the color to be changed is determined according to the content of the color of the image, there is a big problem that the original color changes.

The technique described in Patent Document 1 classifies display data that is not subjected to color-shape conversion, and further classifies the display data into shapes such as points, lines, and surfaces, and shapes corresponding to predetermined colors. The shape of the previous classification result is changed with reference to the table.

In the above Patent Document 1, the method of determining the shape is arbitrary, and has a mechanism for interpretation while comparing with the legend. Since colors in the color space are identified by shape for each surface, line, or point, there is a problem that shape candidates are insufficient. And since the ease of shape identification does not correlate with the ease of identification of the original color, the ease of identification between objects differs greatly from that of general color sensers. I can't share my senses.

Furthermore, if the shape of an object that was a single color is changed, it often increases to multiple colors, and because it is multiple colors, it can be generally identified from the same color object. In that case, even if one color is maintained as the original color, The color of the entire object is a composite of multiple colors and may differ from the original color.

In addition to this, since there are no clear rules for how to determine the color parameters and the shape, the user who sees the display cannot understand the correspondence between the color and the shape without a legend, and the color type cannot be interpreted. Even if there is a legend, it is difficult to associate. This is even more difficult because there is no common part in determining the shape of each point, line, and surface.

And, there is a big problem that it is not possible to accurately represent fine color differences such as lack of continuity and inability to identify fine colors. The technique described in Patent Document 2 is an apparatus that captures an image of a real subject and converts the image onto a display so that the color weak can be identified. A method for discriminating, from an actual subject, an area that is substantially the same color as the color (one or more) specified by the user from other areas. There is identification using texture and blinking. In Patent Document 2, the method of determining the shape is arbitrary, and details of the specific examples described are not shown. First, since the ease of shape identification does not correlate with the ease of identification of the original color, the ease of identification between objects differs greatly from that of general color sensers. I can't share my senses.

Furthermore, the original color cannot be maintained. Changing the shape of an object that was one color often increases to multiple colors, and because it is multiple colors, it can be generally identified from objects of the same color. In that case, even if one color is maintained at the original color, the entire object The color is a composite of multiple colors and may differ from the original color. In addition, since there are no clear rules for determining the color parameters and the shape, the user who sees the display cannot understand the correspondence between the color and the shape without a legend, and the color cannot be read. Even if there is a legend, it is difficult to associate.

And there is no continuity and fine colors cannot be identified. There is a big problem that it is not possible to accurately represent fine color changes. The above-mentioned patent document 3 uses a technique of increasing each RGB ratio in a machine using RGB video signals for a color weak person. Here, in the above-mentioned Patent Document 3, there is a method of increasing the gain of the RGB signal of the video process amplifier according to the degree of color weakness. Although this method emphasizes colors to make it easy to identify weak colors, it affects the entire colors in the image. Therefore, there is a problem that the original color cannot be maintained. This technique is a countermeasure technique limited to color weakness (three-color type abnormal persons). Furthermore, there is a problem that it cannot be used unless it is investigated which type of color vision characteristics among a plurality of types of color weakness.

The above-mentioned patent document 4 makes it possible to identify by converting the color so that it does not fall on the confusion color line. In Patent Document 4, when colors in an image are classified into a plurality of colors and plotted on a confusion color line and are on the confusion color line, the same confusion is obtained by changing the angle around the confusion color center. It is intended not to be on the color line. However, as in Non-Patent Document 1, this technique has a problem that it is difficult to identify the original color because the identification and the maintenance of the original color are a trade-off. In addition, since the main colors (mainly generated colors) are clustered (classified), it is difficult to understand the difference in color. There is a problem that continuity and gradation are lost.

In the above-mentioned Patent Document 5, the color is converted so that the color mixing degree and the color difference are small for the A type color weak person. The above-mentioned Patent Document 5 is a method of changing the color for a color weak person, and this method minimizes the sum of the color difference from the original color and the degree that the changed color is on the confused color line. Is. However, similar to Non-Patent Document 1, there is a trade-off between identification and maintenance of the original color, so that it is difficult to identify the original color. Further, the color changing method is described as minimizing the mathematical formula, and no specific changing method is described. This method also has a problem that continuity and gradation are lost. In addition, when the chromatic image display is an achromatic image display, that is, when the color image data is printed in monochrome, the same problem as described above may occur. In other words, when color image data on a computer is printed out by a monochrome printer instead of a color printer, it is reproduced only as monochrome shades even if the original colors are different. The same problem occurs when a color original is copied by a monochrome copying machine.

In the above Patent Document 6 and Patent Document 7, it is proposed to emphasize the color (saturation) whose ability has deteriorated for the elderly. However, in this method, since the correspondence to the color weak is not considered, the type of color cannot be shown to the color weak. Further, since it cannot be emphasized and expanded beyond the color gamut boundary, there is a problem that if the original color has high luminance or high saturation, further enhancement cannot be performed.

In the above Patent Document 8, although it is proposed to express the hue by a hatching angle, arrows are used to distinguish angles having the same orientation, such as 45 degrees and 235 degrees, and the display becomes unsightly. There's a problem.

By the way, in each of the above patent documents, it is assumed or assumed that image processing (processing) is added to the original document file data and the processed document file data is output. In other words, the document file data processed for the color-blind person is output, and is observed by both the general color person and the non-general color person (color-blind person and elderly person).

Therefore, it is troublesome to restore the original document file data after processing, and if necessary, it is also necessary to leave the original document file data before processing. Further, depending on the image processing circuit, there is a possibility that the document file data is processed in a state different from a desired state.

Furthermore, a dedicated image processing circuit may be required for image processing, and it was difficult to easily handle and carry the original document file data and the processed document file data.

The present invention has been made to solve the above-described problems, and it is easy to create a document file in a state suitable for observation by both general color blind persons and non-general color blind persons (such as color deficient persons and elderly persons). It is an object of the present invention to provide a document file handling method, a document file handling device, and a document file handling program capable of handling document files and outputting document files suitable for desired color vision characteristics as required.

The present invention that solves the above problems is as described below.

(1) The invention described in claim 1 handles the original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic as different layers in the layer structure. The document file handling method is characterized in that output document file data is output from the original document file data and difference data corresponding to predetermined color vision characteristics.

(2) The invention according to claim 2 handles the original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic as different layers in the layer structure. Obtaining the user's color vision characteristics of the document file data, and outputting the document file data for output from the original document file data and the difference data corresponding to the acquired color vision characteristics of the user, Document file handling method.

(3) The invention according to claim 3 treats the original document file and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic as different layers in a layer structure, A document file handling apparatus comprising processing means for outputting document file data for output from the original document file data and difference data corresponding to a predetermined color vision characteristic.

(4) The invention according to claim 4 handles the original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic as different layers in the layer structure. And processing means for outputting document file data for output based on the original document file data and the difference data, wherein the processing means includes a difference according to a color vision characteristic of a user of the original document file data and the document file data. Document file handling device for outputting document file data for output according to the color vision characteristics of the user based on the data (5) The invention according to claim 5 is described together with the original document file data 5. The document file handling device according to claim 3, wherein the difference data is referred to by a linked destination. It is a position.

(6) The invention according to claim 6 comprises processing means for outputting document file data for output from the original document file data and difference data used when outputting the original document file data with a predetermined color vision characteristic. And the processing means includes the original document file data and the difference data according to the color vision characteristic of the user of the document file data acquired by the link destination described together with the document file data. The document file handling apparatus is characterized in that it outputs document file data for output according to the above.

(7) In the invention according to claim 7, the processing means is stored in the same file as the original document file data, and includes difference data handled as a different layer in a layer structure and the original document file data. The document file handling apparatus according to claim 6, wherein the document file data for output corresponding to the color vision characteristics of the user is output.

(8) The document file according to any one of claims 3 to 7, wherein the predetermined color vision characteristic is a color vision characteristic other than a general color vision person. It is a handling device.

(9) The document according to any one of claims 3 to 7, wherein the predetermined color vision characteristic is a color vision characteristic of a weak color person or an elderly person. It is a file handling device.

(10) The invention according to claim 10 is characterized in that age information of the user is acquired, and color vision characteristics corresponding to the age are used as the predetermined color vision characteristics. The document file handling device according to any one of the above.

(11) The document file handling device according to claim 10, characterized in that the biometric information of the user is acquired and the age information is acquired from the biometric information.

(12) The invention according to claim 12 is a display means capable of displaying a plurality of images in each of a plurality of directions on the same screen, a user position detecting means for detecting the position of the user with respect to the display section, 4. A display control means for performing display control so that the display means displays the document file data in accordance with the color vision characteristics of the user toward the user's position. A document file handling device according to any one of claims 11 to 11.

(13) In the invention described in claim 13, when the user having a plurality of different visual characteristics is detected in the same direction by the user position detecting means, the display control means is a color vision of a general color vision person. 13. The document file handling apparatus according to claim 12, wherein display control is performed so that the display unit performs display of the color vision characteristic farthest from the characteristic toward the user. is there.

(14) The invention according to claim 14 is characterized in that the difference data has a content that enables suitable output in accordance with an output form of display or image formation. A document file handling apparatus according to any one of the preceding claims.

(15) The invention according to claim 15 is characterized in that the difference data has a content that enables suitable output in accordance with an output size. This is a document file handling device.

(16) The invention according to claim 16 handles the original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic as different layers in a layer structure, A document file handling program for causing a computer to function as processing means for outputting document file data for output based on the original document file data and the difference data corresponding to predetermined color vision characteristics.

According to the document file handling method, document file handling apparatus, and document file handling program of the present invention, the following effects can be obtained.

(1) In the document file handling method according to the first aspect of the present invention, the original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic are displayed in a layer structure. While treating as different layers and outputting document file data for output based on the original document file data and difference data corresponding to a predetermined color vision characteristic, general color blind persons and non-general color blind persons (color weak persons, elderly persons, etc.) ), It is possible to easily handle a document file in a state suitable for observation by both. In addition, a document file suitable for desired color vision characteristics can be output as necessary. In addition, since the original document file data is not processed and may be output with a layer structure having the necessary color vision characteristics (see FIG. 6), the processing speed can be increased. It is also easy to switch the desired characteristics.

(2) In the invention of the document file handling method according to claim 2, the original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic are formed in a layer structure. While handling as a different layer, the user's color vision characteristics of the document file data are acquired, and the document file data for output is output from the original document file data and the difference data corresponding to the acquired color vision characteristics of the user Therefore, it is possible to easily handle a document file in a state suitable for observation by both general and non-general color blind persons (low color persons, elderly persons, etc.), and a document suitable for desired color vision characteristics as necessary. It becomes possible to output a file.

(3) In the invention of the document file handling apparatus according to claim 3, the original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic are formed in a layer structure. A processing unit that outputs the document file data for output based on the original document file data and the difference data corresponding to a predetermined color vision characteristic is provided. Document files in a state suitable for observation by both the weak and the elderly) can be easily handled. In addition, a document file suitable for desired color vision characteristics can be output as necessary. In addition, since the original document file data is not processed and may be output with a layer structure having the necessary color vision characteristics (see FIG. 6), the processing speed can be increased. It is also easy to switch the desired characteristics.

(4) In the document file handling device according to claim 4, the original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic are formed in a layer structure. A processing unit that handles the different document layers and outputs document file data for output based on the original document file data and the difference data is provided. The processing unit includes a user's color vision of the original document file data and the document file data. Observation by both general and non-general color vision persons (such as color-blind and elderly) by outputting document file data for output according to the color vision characteristics of the user based on the difference data according to the characteristics Document files that are suitable for the user can be easily handled, and if necessary, the document file suitable for the color vision characteristics of the user It is possible to output.

(5) In the invention of the document file handling device according to claim 5, all the difference data is accommodated in the same file as the original document file data by referring to the difference data by the link destination described together with the original document file data. Therefore, it is possible to make the contents minimal, and it is possible to easily handle a document file in a state suitable for observation by both a general color person and a non-general color person (color weak person, elderly person, etc.). In addition, it is possible to output a document file suitable for the color vision characteristics of the user with reference to the difference data as necessary.

(6) In the invention of the document file handling apparatus according to claim 6, the document file data for output is obtained from the original document file data and the difference data used when outputting the original document file data with a predetermined color vision characteristic. Processing means for outputting, the processing means, based on the original document file data and the difference data corresponding to the color vision characteristics of the user of the document file data acquired by the link destination described together with the document file data, By outputting the document file data for output according to the color vision characteristics of the user, it is not necessary to store the difference data in the same file as the original document file data. Can easily handle document files in a state suitable for observation by both non-general color blind people and people with color deficiencies (such as color-blind people and elderly people) To become. In addition, a document file suitable for desired color vision characteristics can be output as necessary.

(7) In the document file handling device according to claim 7, the processing means is accommodated in the same file as the original document file data, and the difference data handled as a different layer in a layer structure; By outputting the document file data for output according to the color vision characteristics of the user with the document file data, it becomes possible to quickly output a document file suitable for the desired color vision characteristics.

(8) In the invention of the document file handling device according to the eighth aspect, the predetermined color vision characteristic is a color vision characteristic other than the general color vision person, and therefore, when the non-general color vision person becomes the user, A document file suitable for color vision characteristics can be output.

(9) In the invention of the document file handling device according to claim 9, the predetermined color vision characteristic is the color vision characteristic of the color-blind person or the elderly person. In such a case, it becomes possible to output a document file suitable for the color vision characteristics of the user.

(10) In the document file handling device according to claim 10, the age information of the user is acquired, and the color vision characteristic according to the age is used as the predetermined color vision characteristic, so that the elderly can use the non-general color vision. When a user becomes a user, a document file suitable for the color vision characteristics of the user can be reliably output.

(11) The document file handling device according to claim 11 acquires the user's biometric information, and acquires the age information from the biometric information, so that the elderly person becomes a non-general color blind person. In such a case, it is possible to reliably output a document file suitable for the color vision characteristics of the user.
As biometric information in this case, various biometric information such as face images, fingerprints and palm prints, blood vessels such as limbs and retina, and irises can be used.

(12) The invention of the document file handling device according to claim 12 comprises display means capable of displaying a plurality of images in each of a plurality of directions on the same screen, detecting the position of the user with respect to the display unit, and The display of the document file data corresponding to the color vision characteristic is displayed toward the user's position. As a result, appropriate display for non-general color persons is possible, and it is possible to coexist with general color persons.

(13) According to the document file handling apparatus of the thirteenth aspect, when a plurality of users with different visual characteristics are detected in the same direction, the user with the color vision characteristic farthest from the color vision characteristics of the general color vision person The display for is directed toward the user's position. Thereby, an appropriate display is possible with respect to a non-general color vision person.

(14) In the document file handling device according to the fourteenth aspect of the invention, the difference data is content that enables suitable output in accordance with the output form of display or image formation. When an uncommon color vision person becomes a user, a document file suitable for the color vision characteristic of the user can be output regardless of whether the output form is display or image formation.

(15) In the document file handling device according to the fifteenth aspect of the invention, the difference data is content that enables suitable output according to the output size. When a user becomes a user, a document file suitable for the color vision characteristic of the user can be output according to the output size.

(16) In the invention of the document file handling program according to claim 16, the original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic are formed in a layer structure. By treating the original document file data and the document data for output as the difference data corresponding to a predetermined color vision characteristic, the computer functions as a different layer, and the general color blind person and the non-general color vision It is possible to easily handle a document file in a state suitable for observation by both a person with color weakness and an elderly person. In addition, a document file suitable for desired color vision characteristics can be output as necessary.

It is a block diagram which shows the structure of 1st embodiment of this invention. 2 is a block diagram showing a configuration of a terminal 100. FIG. It is a flowchart which shows operation | movement of 1st embodiment of this invention. It is a flowchart which shows operation | movement of 1st embodiment of this invention. It is explanatory drawing which shows the data structure of 1st embodiment of this invention. It is explanatory drawing which shows the layer structure of 1st embodiment of this invention. It is explanatory drawing which shows the example of a production | generation of difference data. It is a block diagram which shows the structure of 1st embodiment of this invention. It is a block diagram which shows the structure of 1st embodiment of this invention.

Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described in detail with reference to the drawings.

[A] First embodiment:
(A1) Configuration of document file handling device:
FIG. 1 is a block diagram showing the configuration of the entire system including a document file handling apparatus 100 according to the first embodiment of the present invention and its peripheral devices.

Here, the network 10 is a network as various communication networks such as LAN and WAN to which various devices such as the terminal 100, the input device 200, the server 300, and the output device 400 are connected. The terminal 100 and the output device 400 function as a document file handling device.

FIG. 2 is a diagram lock diagram of the terminal 100. A terminal 100 as a document file handling apparatus according to the present embodiment includes a control unit 101 configured by a CPU, a storage unit 102 that stores information on various color vision characteristics and other data, and a communication unit that communicates with a device connected to a network. 103, a processing layer generation unit 104 that generates difference data that is handled as a different layer in a layer structure different from that of the original document file data and is used when outputting the original document file data with a predetermined color vision characteristic, and acquires user information And the user authentication unit 109 that performs user authentication from information acquired by the input device 100. The information specific to the user includes (1) information stored by the user, (2) information on belongings, and (3) information on physical characteristics. (1) An ID or password may be input as stored information. (2) As personal information, an individual's personal property such as an ID card may be subjected to RF-ID analysis. (3) The physical characteristics may be analyzed by scanning the user's personal face, fingerprint palm print blood vessel, or the like.

Further, the terminal 100 as the document file handling apparatus handles the original document file data and the difference data used when outputting the original document file data with a predetermined color vision characteristic as different layers in the layer structure, Processing means for outputting document file data for output according to predetermined color vision characteristics by the original document file data and the difference data, the processing means, according to the color vision characteristics of the user of the document file data, The original document file data and the difference data have a function of outputting document file data for output corresponding to the color vision characteristics of the user.

Here, “layer” means “layer”. In the processing of this embodiment, it means a “imaginary transparent sheet for drawing” on which an image based on an original image or difference data is placed. You can add or change elements in the image by overlaying or replacing them.

Note that the processing means in the terminal 100 has a function of referring to the difference data by the link destination (URL) from the original document file data without accommodating the original document file data and the difference data in the same file.

Further, here, the predetermined color vision characteristic is a color vision characteristic other than a general color vision person, for example, a color vision characteristic of a color weak person or an elderly person.

Further, the difference data is characterized in that it is a content that enables suitable output according to the output form of display or image formation. The input device 200 is input means such as a scanner for inputting images and various data.

The server 300 has various functions related to document handling, and has a function of storing differential data from the terminal 100 in a predetermined manner. The output device 400 executes display or image formation according to data output from the terminal 100 by either display or image formation.

(A2) Document file handling procedure, program processing:
The operation of this embodiment will be described below with reference to the flowcharts of FIGS. 3 and 4 and the explanatory diagrams of FIG.

(A2-1) File generation:
Here, with reference to FIG. 3, basic processing steps for file generation according to the present embodiment will be described.

In the terminal 100, a document file handling program is started, and the following file generation processing is advanced by this document file handling program. Here, the user at the time of generating the file is recognized by the user authentication based on the login ID / password to the input device 110 when the terminal 100 is activated or the user authentication in the document file handling program. (Step S201 in FIG. 3).

In addition to IDs and passwords, as described above, the input device 110 analyzes the RF-ID included in the possession such as the identification card worn by the user, the recognition of the user face image shooting result, the fingerprint palmprint Authentication using a blood vessel or the like can also be performed by the user authentication unit 109.

The control unit 101 of the terminal 100 determines the color vision characteristic of the user based on the user's color vision characteristic information stored in the storage unit 102 or the server 300 based on the above user recognition result. In addition, the control unit 101 sets an encryption key (step S202 in FIG. 3). This encryption key is for concealment because the color vision characteristics described later are a kind of personal information.

Here, it is assumed that the user at the time of file generation and the user at the time of file output are the same, but if the user at the time of file generation and the user at the time of file output are different, color vision characteristics May be input from an operation unit (not shown) of the terminal 100.

Here, the data of the document file is input from the input device 200 or generated by the terminal 100. Alternatively, the image data input from the input device 200 and the text data generated by the terminal 100 are combined by the control unit 101 to generate original document file data (step S203 in FIG. 3).

Then, the processing layer generation unit 104 refers to the original document file data described above, and generates each processing layer as difference data (step S204 in FIG. 3). Here, the original data layer according to the original document file data, the color-difference data layer for emphasizing colors that are difficult to recognize according to the color vision characteristics of the color-impaired, and the elderly to make it easier to see the parts that are difficult for the elderly to recognize A difference data layer for human color vision is generated. Next, a layer structure will be described with reference to FIG. 6, and an example of difference data will be described with reference to FIG.

Here, the original data layer corresponding to the original document file data is a layer based on the original document file data (see FIG. 6A). In addition, in the color weakness difference data layer that emphasizes colors that are difficult to recognize according to the color vision characteristics of the color weak, if the characters and line colors used in the original document file data are difficult to be recognized by the color weak, This is a layer based on difference data for emphasizing the periphery of a line with hatching, thickening a line, or replacing a character font with a bold or hollow character (see FIG. 6B). For this reason, as the difference data layer for color weakness, no processing is performed on a portion having no problem for the color weak person, and the difference data is only the part related to the color weak person.

Also, in the elderly difference data layer that emphasizes colors and brightness that are difficult to recognize according to the visual characteristics of the elderly, the color and brightness of characters and lines used in the original document file data are recognized by the elderly. Difficulty in reducing brightness of white background that is too bright, emphasizing the surroundings of characters and lines with hatching, thickening lines, and replacing character fonts with bold or hollow characters This is a layer based on data (see FIG. 6C). For this reason, as a difference data layer for elderly people, no processing is performed on portions that are not problematic for elderly people, and only difference data for the elderly people is obtained.

In addition to those shown in FIG. 6, it is also possible to provide a plurality of color weakness difference data layers or a plurality of elderly color vision difference data layers. Note that when the original document file data is created or edited, it is desirable that the control unit 101 generate or change the above difference data in parallel with the creation and editing of the original document file data.

Next, an example of generating difference data will be described with reference to FIG. 7, FIG. 7A shows original document file data, and FIG. 7D shows difference data for color vision characteristics of a P-type color weak person who is difficult to recognize red. This will be described below.

Extract first region candidates:
In the image, that is, in the displayable area, an area constituting a dot, line, or character is extracted as a candidate for the first area. For the selected first region candidate, an average color of the region is obtained. If there is object information such as printer output, that information is used, and if it is a copier, it is extracted by segmentation processing and its average color is calculated. For the segmentation process, a general method can be used. For example, the histogram shape is examined and the valley portion is set as a threshold value. An appropriate representative value, for example, a median value, may be selected instead of the average color.

Extraction of the first area (color character part):
As described above, the control unit 101 determines whether or not the candidate color of the first region extracted by the first region color extraction unit 130 is a corresponding color in the color vision information specified by the color vision characteristic information. To do. That is, it is determined whether or not the color weak person falls into a color that is difficult to identify. If it is a corresponding color in the color vision information, the candidate for the first area is determined as the first area (FIG. 7B).

Expansion processing of color character part:
Using the “dilation” of the image processing, the line portion constituting the character extracted as the first region (FIG. 7B) is thickened (FIG. 7C). As technical information of the expansion processing, for example, http://www.mvision.co.jp/help/Filter__Mvc_Expansion.html can be referred to. The thickness is determined according to the distance from the achromatic color, that is, according to the saturation, by calculating the value of the u'v 'chromaticity diagram of the character. Characters and line drawings with high saturation are thick, and characters and line drawings with no saturation are left as they are. As a result, in the case of black and white, it remains unchanged. Further, the thickness may be stepwise or a fixed value. As a result, it is possible to approximate the conspicuousness of the general color vision person and the perception of the weak color person.

It should be noted that it is desirable to maintain the color and chromaticity of the second region and the first region, or the average of the region where the intensity is modulated.

(B-2-1-3) Hatching superimposition according to chromaticity:
Various textures (hatching, patterns, blinking, etc.) are superimposed with contrast and sensitivity according to chromaticity, which will be described in another embodiment (10) described later (FIG. 7D).

Black and white:
Here, the chromaticity component is removed (FIG. 7E). This can be calculated with Y = 0.1B + 0.6G + 0.3R.

Contrast reduction with background:
The contrast is lowered so that the second region does not become too dark (FIG. 7E). This contrast is preferably about 10 to 50% so that the character part can be seen when combined later and can be emphasized to some extent.

Combining text and background:
The images processed as described above are synthesized (FIG. 7 (f)). The composition may be added and divided by 2, or the character data may be preferentially selected and synthesized. Note that the composition in FIG. 7F corresponds to step S306 in FIG. 4 described later.

In FIG. 7 (f), the original character is the color as it is, but the red character that is difficult for the color weak to recognize is slightly hatched in the background. For this reason, color-blind people can also know the color type by hatching. Moreover, since the line is swollen, it is in an emphasized state according to the saturation. Further, in the case of FIG. 7 (f), the character color is not changed, that is, the red character remains red, so that it is possible to make the general color sense person feel less uncomfortable.

In FIG. 7 (f), since the contrast between the thin line portion and the expanded portion or the background portion may be difficult to read at the time of black and white to be described later, the contrast may be increased in advance. If the saturation of the thin line portion is adjusted in anticipation of being black and white in advance, the chromaticity does not change, so that the general color sensation is less uncomfortable and the characters can be read easily when making the black and white. If you make it black and white in advance, you can make it easier to read characters when making black and white. In addition, data that has been converted to black and white in advance may be stored in a separate layer.

Black and white:
With this method, for example, if it is applied to black and white display such as black and white printing, it is converted into black and white as it is (FIG. 7 (g)). Even when the image is converted to black and white, the chromaticity can be determined by hatching, and the original color can be determined by the hatching angle, and a black and white character image emphasized by thickening or hatching can be obtained.

Note that if color data is sent to a monochrome printer as it is, the print result may be blurred. Therefore, it is desirable to execute this process when printing with a monochrome printer.

Next, the control unit 101 encrypts each processing layer described above with an encryption key (step S205 in FIG. 3). At this time, it is desirable to encrypt at least the contents of the user information part, the color weakness difference data layer, and the elderly color vision difference data layer in the file main body data to be described later. This encryption makes it difficult to leak information about whether the user is a color weak person or the user is an elderly person.

Then, storage data is generated from each processing layer (the original data layer, the color vision difference data layer, and the elderly color vision difference data layer) that has been encrypted as described above (step S206 in FIG. 3). ).

At this time, the original data layer is stored in the terminal 100 as the file body data of the original document file data or distributed (FIG. 5A). Difference data such as a difference data layer (FIG. 5B) is stored in the server 300 separately from the original document file data. Therefore, a link (URL) from the original document file data to the difference data is created in accordance with the storage destination, and the information of the link destination is described in the original document file data.

Then, the control unit 101 stores the file main body data and the difference data in which the link destination information and the like are described as described above in the respective storage locations (step S207 in FIG. 3).

The file body data has a file structure as shown in FIG. 5A, for example, and the difference data has a file structure as shown in FIG. 5B.
Here, the file body data is
・ Header part (version information etc.),
-Trailer section (information structure address, catalog object root address, mutual compatibility table head position information, etc.),
-User information section (information about users (color vision characteristics information, etc.))
・ Intercompatible table (object position information),
A body part (including object content information, a page object describing the page configuration, data objects such as text, images, and fonts, and link information) is included.

Of the above units, the user information unit is preferably encrypted because it includes information on the color vision characteristics of the user. Here, the difference data is obtained by processing the file data of the original document according to the color vision characteristics. Note that it is preferable to have only the changed data because the file size is reduced. Also, as the difference data, color weakness difference data and elderly color vision difference data corresponding to each color weakness type,
・ Data objects by color weakness type,
・ Data objects for elderly people,
・ Page object by color weakness type,
・ Page objects for elderly people,
・ Font by color weakness type,
・ Fonts for the elderly,
Is stored separately from the file body data. Note that it is not necessary to generate all of the difference data shown here, and it is only necessary to generate a necessary portion.

The difference data may be difference data suitable for display and image formation depending on whether the output destination is a display or a printer. Also, the difference data has a size at the output destination for image formation (business card size, A4 size, poster size, etc.) or a size at the output destination for display (display size, resolution, size of one pixel). Accordingly, it is possible to change the hatching frequency, angle, line thickness, etc. when emphasizing, that is, the content according to the output size.

It should be noted that each of the above parts is preferably encrypted because it contains information on the color vision characteristics of the user. In this case, either encryption of a predetermined object part or encryption of the entire difference data may be performed, or both encryptions may be performed.

Further, although the file structure of FIG. 5 described above is exemplified by Adobe PDF file as a specific example, it is not limited to this, and various types of files can be used. Note that the difference data can be created not only by the processing layer generation unit 104 of the terminal 100 but also on the server side to which the difference data is linked.

Also, the difference data can be created not only by the processing layer generation unit 104 of the terminal 100 in advance, but also by the output device 400 by referring to the original document file data at the time of output. Further, even information that should be differential data may be partially placed in the original document file data. That is, as will be described later, when the difference data cannot be accessed due to the state of the network, by referring to the minimum information included in the original document file data, new data corresponding to the difference data is generated and used for output. It becomes possible.

(A2-2) File output:
Here, with reference to FIG. 4, basic processing steps for file output of the present embodiment will be described.

In the terminal 100, a document file handling program is started, and the following file output processing is advanced by this document file handling program. This process may be carried out by sharing the document file handling program and the printer driver.

Here, the user at the time of file output is recognized by the user authentication by login ID / password at the time of starting the terminal 100 or the user authentication in the document file handling program (in FIG. 4). Step S301). When the output device 400 is an image forming device, it is more desirable to perform user authentication for a user who has come to pick up a printed matter. Similarly, as will be described later, when the output device 400 is a display device, it is more desirable to similarly perform user authentication for a user who has viewed the display.

In addition to IDs and passwords, analysis of RF-IDs contained in identification cards worn by users, recognition of user face image shooting results by cameras provided in terminal 100 and output device 400, fingerprints, etc. Authentication using a palmprint blood vessel or the like can also be used.

Then, from the above user recognition result, the control unit 101 determines the color vision characteristics of the user when outputting the file. In addition, the control unit 101 sets an encryption key (step S302 in FIG. 4). In this case, when authentication is performed using an ID / password, an encryption key stored in advance may be read, or the user may be prompted to input the encryption key.

Here, even when a plurality of difference data exists for the original document file data shown in the file structure of FIG. 5, it is only necessary to access the difference data that matches the color vision characteristic determined by the user authentication. Therefore, the output time required for rendering, which will be described later, can be shortened. In addition, when the general color sense person is the user at the time of output, the difference data is not accessed at all, and therefore no wasteful processing time occurs. That is, even when the user at the time of file generation and the user at the time of file output are not the same, appropriate processing is performed, and processing is executed in a processing time without waste.

Here, the control unit 101 accesses the original document file data and the difference data as the document file data (step S303 in FIG. 4). In this case, first, the original document file data to be output is accessed, and the link destination difference data indicated in the original document file data is accessed together with the object of the original document file data.

And the control part 101 performs the decoding process of an encryption part using the acquired encryption key regarding the part encrypted about original document file data and difference data (step S304 in FIG. 4).

Here, the control unit 101 can output a state that matches the color vision characteristics of the user based on the original document file data or difference data after the decryption of the encryption process and the color vision characteristics of the authenticated user. Rendering is executed (step S305 in FIG. 4).

Here, if the user is a general color sense person, document file data for output such as output for display or image formation is generated based only on the original document file data (step S306 in FIG. 4). If the user is a color weak person, output document file data such as an output for display or image formation is generated based on the original document file data and color difference data (step S306 in FIG. 4). ). In this case, by referring to the difference data corresponding to the type of the color weak person, an output for display or image formation in a state where the hatching, blinking, or font is changed for the color that is difficult for the color weak person to recognize is generated.

If the user is an elderly person, an output for display or image formation is generated based on the original document file data and the elderly difference data (step S306 in FIG. 4). In this case, with reference to the difference data corresponding to the elderly, an output for display or image formation in a state in which the color and brightness that are difficult for the color weak to adjust is generated.

At this time, depending on whether the output destination is a display or a printer, an output in a state suitable for display and image formation is generated using difference data suitable for display and image formation. . In this case, the color or brightness is difficult to recognize on the display or paper.

Also, depending on the size at the output destination (business card size, A4 size, poster size, etc.), the hatching frequency, angle, line thickness, etc. when emphasizing are changed and the content according to the output size Output.

In this case, a device for recognizing the user is provided in the output device 400, and the recognition result of the user who has arrived at the output device 400 is sent to the control unit 101 of the terminal 100 to set the above color vision characteristic setting. Differential data access, decryption, rendering, and output may be performed. A similar series of processing may be executed on the output device 400 side.

In the above operations, the original document file data and the difference data are separated from each other. However, if access to the link destination of the difference data cannot be made from the original document file data due to network conditions, a warning display or error You may display and output only by the original document file data.

In the above operation, the original document file data and the difference data are separated from each other. However, if the original document file data cannot be accessed from the original document file data due to network conditions, a warning display or error display is displayed. In addition, referring to information about the user included in the original document file data, the control unit 101, the printer driver, or the output device 400 generates corresponding differential data from the original document file data and outputs it. Also good. In this case, the original difference data is not used and the original output state may not be obtained, but simple measures against color weakness and measures for the elderly are possible.

(A3) Effects of handling document files:
In the embodiments described above, the original document file data and the difference data used when the original document file data is output with a predetermined color vision characteristic are handled as different layers in the layer structure, so that the general color sense person and the non-general color sense are handled. It is possible to easily handle a document file in a state suitable for observation by both a person with color weakness and an elderly person. In addition, a document file suitable for desired color vision characteristics can be output as necessary.

Further, since the original document file data is not processed and may be output in a layered structure with necessary color vision characteristics (see FIG. 6), the processing can be speeded up. It is also easy to switch the desired characteristics.

Also, since the difference data is not included in the original document file data, the file size of the original document file data can be reduced. Also, by encrypting, it is possible to conceal user characteristics (color vision characteristics, age, etc.) and protect privacy.

In the above embodiment, the original document file data and the difference data used when the original document file data is output with the predetermined color vision characteristics are handled as different layers in the layer structure, and the original document file data and the predetermined color vision are used. By outputting the document file data for output with the difference data according to the characteristics, it is easy to create a document file in a state suitable for observation by both general color blind persons and non-normal color blind persons (such as color deficient persons and elderly persons) It can be handled, and a document file suitable for a desired color vision characteristic can be output as necessary.

In the above embodiment, the original document file data and the difference data used when the original document file data is output with a predetermined color vision characteristic are handled as different layers in the layer structure, and the user's color vision of the document file data is used. By acquiring the characteristics and outputting the document file data for output based on the original document file data and the difference data corresponding to the predetermined color vision characteristics, general and non-standard color vision persons (such as color-blind and elderly) It is possible to easily handle a document file in a state suitable for both observations, and to output a document file suitable for a user's color vision characteristics as necessary.

In the above embodiment, the original document file data and the difference data are not accommodated in the same file, and the original document file data is made the minimum content by referring to the difference data by a link from the original document file data. Therefore, it is possible to easily handle a document file in a state suitable for observation by both a general color person and a non-general color person (color-weak person, elderly person, etc.). Further, if necessary, it is possible to output a document file suitable for the color vision characteristics of the user with reference to the difference data.

In the above embodiment, the predetermined color vision characteristic is a color vision characteristic other than the general color sense person, so that a document file suitable for the color vision characteristic of the user when the non-general color vision person becomes the user is output. It becomes possible.

In the above-described embodiment, the predetermined color vision characteristic is the color vision characteristic of the color-blind person or the elderly person, so that the color vision characteristic of the user when the non-general color vision person such as the color-blind person or the elderly person becomes the user. It is possible to output a document file suitable for.

In the above embodiment, the difference data is content that enables suitable output in accordance with the output form of display or image formation, and therefore, non-general color blind persons such as color-deficient persons and elderly persons became users. In this case, it is possible to output a document file suitable for the color vision characteristics of the user regardless of whether the output form is display or image formation.

In the above embodiment, since the difference data is content that enables suitable output according to the output size, the output size when a non-general color vision person such as a color weak person or an elderly person becomes a user. Depending on the size, it is possible to output a document file suitable for the color vision characteristics of the user.

In the above embodiment, the age information of the user is obtained from login information or biometric information described later, and the color vision characteristic according to the age is used as the predetermined color vision characteristic, so that the elderly can use the color vision characteristic. When the user becomes a user, it is possible to reliably output a document file suitable for the color vision characteristics of the user.

In the above embodiment, when biometric information is acquired as a physical feature of a user and age information is acquired from the biometric information, when an elderly person becomes a general color blind person, A document file suitable for color vision characteristics can be output reliably. As biometric information in this case, various biometric information such as face images, fingerprints and palm prints, blood vessels such as limbs and retina, and irises can be used. Further, this biometric information may be obtained from an apparatus used for identity verification of various devices.

In the above embodiment, as shown in FIG. 8, a display unit 410 capable of displaying a plurality of images in each of a plurality of directions on the same screen can be used. As this type of display unit 410 capable of displaying in a plurality of directions, a display developed as a display incorporating a viewing angle control technique such as a liquid crystal display can be used.

Then, a display unit 410 capable of displaying a plurality of images in each of a plurality of directions on the same screen is provided, and a user position relative to the display unit 410 is detected using a user position detection unit such as the camera 420. As for the position of the user, if the user has an RFID, the RFID receiver (not shown) using a directional antenna, or a large number of indoors placed indoors and pinpointed. It is also possible to use an RFID receiver or the like that can grasp the above.

Therefore, the user position detection unit such as the camera 420 or the RFID receiving device may be provided in the vicinity of the display unit 410 as the output device 400, or is connected to the server 300 via the network independently of the output device 400. May be.

Then, the control unit 401 controls the display unit 410 so that the display of the document file data corresponding to the color vision characteristics of the user is displayed toward the position of the user. In the case of FIG. 8, a display for the elderly is displayed for the elderly 220 and a general display is displayed for the general user 210. As a result, it is possible to reliably display an appropriate color to a non-general color person, and it is possible to coexist with a general color person.

In addition, in the above example, when a plurality of users with different visual characteristics are detected in the same direction, the display for the user with the color vision characteristic farthest from the color vision characteristics of the general color vision person is directed to the user's position. Are displayed (see FIG. 9). Thereby, an appropriate display is possible with respect to a non-general color vision person. Although not shown, if users with different color vision characteristics are detected at different positions, a display suitable for each user may be performed.

In the above description, the same effect can be obtained by using a display unit that can change the display direction of a single image on the same screen instead of the display unit that displays a plurality of images on the same screen. .

[B] Other embodiments:
(B1) Other embodiment (1):
In the series of processes described above, the creation software for executing file generation can be distributed for a fee, and the output software for executing file output can be distributed free of charge. This is particularly effective when many people view the generated file.

(B2) Other embodiment (2):
When the original document file data is created or edited using various programs, it is desirable that the corresponding difference data is automatically generated or automatically edited in conjunction with the original document file data. That is, it is desirable to comply with the creation software for file generation of this embodiment. This makes it possible to create and edit documents suitable for browsing by people with all color vision characteristics, such as general color blind people, color blind people, and elderly people, and can realize barrier-free display and image formation. become.

(B3) Other embodiment (3):
In applications where multiple people view the display on the display at the same time, it is possible to display the state in which the layer of the difference data is switched at regular intervals using all the difference data shown in this embodiment. desirable. As a result, it is possible to realize a state that can be recognized by people with various color vision characteristics.

(B4) Other embodiment (4):
In the above embodiment, it is desirable to change the hatching frequency according to the display size. In general, a document is often observed at a viewing angle of 20 to 30 degrees, so the hatching frequency is determined according to the viewing angle.

(B5) Other embodiment (5):
When a display is used as the output device 400, a camera (ranging means) for photographing an observer may be arranged on the display, and the hatching frequency may be changed using the obtained observer distance information.

(B6) Other embodiment (6):
In the above embodiment, the terminal 100 has been described as executing the above-described various processes. However, a scanning result is obtained by incorporating a processing circuit or processing software for executing the processing of the present embodiment in a scanner or a digital camera. Alternatively, the original data and the difference data may be output when the photographing result is output.

(B7) Other embodiment (7):
Further, not only dedicated image editing software and document creation software, but also a subprogram for executing the processing of this embodiment as a plug-in of commercially available image editing software or document creation software may be facilitated. Also in this case, a creation plug-in that executes file generation can be distributed for a fee, and an output plug-in that executes file output can be distributed free of charge. This is particularly effective when many people view the generated file.

(B8) Other embodiment (8):
In the above embodiment, in order to avoid troubles such as reaction to anti-virus software check at the time of encryption or virus contamination, clearly indicate the encrypted machine, software, and means in each data. Is desirable.

(B9) Other embodiment (9):
In the above embodiment, when saving or accessing the difference data, in order to avoid troubles such as when the difference data is generated and saved, or when the difference data is accessed, it reacts to the check of the antivirus software. It is desirable to take measures such as obtaining authentication.

(B10) Other embodiment (10):
In the above embodiment, the specific example in which hatching at different angles according to the color of the original data (the difference in color on the confusion color line) is superimposed as the difference data for the color weak is shown. It is not a thing. For example, various patterns (textures) can be used. For hatching, in addition to the angle corresponding to the color, a contrast corresponding to the color, a duty corresponding to the color, and the like can be used.

In addition to the pattern and hatching angle and contrast, the hatching density (spatial frequency) can be continuously changed with either one end on the confusion color line being dense and the other end being rough. Similarly, there are various methods for setting the frequency density.

Also, instead of the pattern or hatching angle, the thickness of the hatching line can be continuously changed according to the position on the confused color line as the duty ratio of the pattern or hatching. It is also possible to change the duty ratio according to the brightness of the color to be expressed.

This texture also has different angle patterns or hatches depending on the difference in the original color, different contrasts depending on the difference in the original color, changes in time according to the difference in the original color, or moves at different speeds, It is also possible to combine at least two of different directions and different speeds depending on the color difference. Also in this case, it is possible to have different states in a substantially continuous manner according to the difference in the original colors. In this case, the position on the confusion color line can be freely represented by changing a plurality of combinations.

In addition, when displaying on a display or the like instead of a printed matter, instead of the hatching angle as space information, as the time-related information as hatching moving speed or moving direction, stop at the center position on the confusion color line, By increasing the moving speed as approaching one end and increasing the moving speed in the opposite direction as approaching the other end, it is also possible to change continuously according to the position on the confusion color line. Even when other textures are used, the position on the confusion color line can be expressed by the angle of the texture, the duty ratio, the moving speed, the blinking cycle, and the like.

(B11) Other embodiment (11):
The encryption process in this embodiment may be as follows. “The original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic are handled as different layers in a layer structure, and the original document file data and the difference data are handled. And processing means for outputting document file data for output. The processing means specifies a user ID based on the acquired user-specific information, and determines the document file data according to the specified color vision characteristics of the user. Create difference data, encrypt it with the user ID, acquire user-specific information when outputting the document file data for output, specify the user ID, and specify the specified user Based on the ID, permission to use the created difference data is determined, and based on the determination result, the original document file data, the difference data, Outputs more document file data for output. "In this way, the user is able to keep secret to a third party that has a color vision characteristics.

10 network 100 terminal (document file handling device)
200 input device 300 server 400 output device

Claims (16)

1. The original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic are handled as different layers in a layer structure,
   Outputting document file data for output by the original document file data and difference data corresponding to predetermined color vision characteristics;
   Document file handling method characterized by the above.
2. The original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic are handled as different layers in a layer structure,
   Acquire user's color vision characteristics of document file data,
   By the original document file data and the difference data according to the acquired color vision characteristics of the user,
   Output document file data for output,
   Document file handling method characterized by the above.
3. The original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic are handled as different layers in a layer structure, and the original document file data and the predetermined color vision characteristic are handled. A document file handling apparatus comprising processing means for outputting document file data for output based on difference data corresponding to the data.
4. The original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic are handled as different layers in a layer structure, and the original document file data and the difference data Includes processing means for outputting document file data for output,
   The processing means includes
   Outputting document file data for output according to the color vision characteristics of the user, using the original document file data and the difference data according to the color vision characteristics of the user of the document file data;
   A document file handling device characterized by that.
5. The processing means refers to the difference data by a link destination described together with the original document file data.
   5. The document file handling apparatus according to claim 3, wherein the document file handling apparatus is a document file handling apparatus.
6. Processing means for outputting document file data for output by the original document file data and difference data used when outputting the original document file data with a predetermined color vision characteristic;
   The processing means includes
   The document for output according to the color vision characteristic of the user by using the original document file data and the difference data according to the color vision characteristic of the user of the document file data acquired by the link destination described together with the document file data Output file data,
   A document file handling device characterized by that.
7. The processing means is stored in the same file as the original document file data, and is output according to the color vision characteristics of the user by using the difference data handled as a different layer in the layer structure and the original document file data. Output document file data for
   The document file handling apparatus according to claim 6, wherein
8. The predetermined color vision characteristic is a color vision characteristic other than a general color vision person.
   The document file handling device according to claim 3, wherein the document file handling device is a document file handling device.
9. The predetermined color vision characteristic is a color vision characteristic of a weak color person or an elderly person.
   The document file handling device according to claim 3, wherein the document file handling device is a document file handling device.
10. Obtaining the age information of the user, and using a color vision characteristic corresponding to the age as the predetermined color vision characteristic;
    The document file handling device according to claim 3, wherein the document file handling device is a document file handling device.
11. Obtaining the user's biometric information and obtaining the age information from the biometric information;
    11. The document file handling apparatus according to claim 10, wherein
12. Display means capable of displaying a plurality of images in each of a plurality of directions on the same screen;
    User position detecting means for detecting the position of the user with respect to the display unit;
    Display control means for performing display control so that the display means performs display of document file data according to the color vision characteristics of the user toward the position of the user;
    The document file handling apparatus according to claim 3, further comprising:
13. The display control means includes
    When the user having a plurality of different visual characteristics is detected in the same direction by the user position detection means, the display of the color vision characteristic farthest from the color vision characteristics of the general color vision person is displayed to the user. Display control to be performed by the display means toward the position of
    The document file handling device according to claim 12, wherein
14. The difference data is content that enables suitable output according to the output form of display or image formation.
    The document file handling apparatus according to any one of claims 3 to 13, wherein the document file handling apparatus is any one of claims 3 to 13.
15. The difference data is content that enables suitable output according to the output size.
    The document file handling apparatus according to any one of claims 3 to 13, wherein the document file handling apparatus is any one of claims 3 to 13.
16. The original document file data and at least one difference data used when outputting the original document file data with a predetermined color vision characteristic are handled as different layers in a layer structure, and the original document file data and the predetermined color vision characteristic are obtained. Processing means for outputting document file data for output using the corresponding difference data;
    Document file handling program characterized by causing a computer to function as

Images