WO2011125419A1 - Web-content conversion device, web-content conversion method, and recording medium - Google Patents

Web-content conversion device, web-content conversion method, and recording medium Download PDF

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Publication number
WO2011125419A1
WO2011125419A1 PCT/JP2011/055856 JP2011055856W WO2011125419A1 WO 2011125419 A1 WO2011125419 A1 WO 2011125419A1 JP 2011055856 W JP2011055856 W JP 2011055856W WO 2011125419 A1 WO2011125419 A1 WO 2011125419A1
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WIPO (PCT)
Prior art keywords
image
information
web content
image data
specifying
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PCT/JP2011/055856
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French (fr)
Japanese (ja)
Inventor
主旬 吉坂
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日本電気株式会社
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Priority to JP2010-090523 priority Critical
Priority to JP2010090523 priority
Application filed by 日本電気株式会社 filed Critical 日本電気株式会社
Publication of WO2011125419A1 publication Critical patent/WO2011125419A1/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90Details of database functions independent of the retrieved data types
    • G06F16/95Retrieval from the web
    • G06F16/957Browsing optimisation, e.g. caching or content distillation

Abstract

Provided is a Web-content conversion device that appropriately adds alternative text to a decorative image. The Web-content conversion device: specifies, from a piece of Web content, the amount of information in the image data of an image contained in said Web content; specifies, from said Web content, image-display information which is for specifying the size at which the image is to be displayed; determines whether or not said image has a decorative purpose on the basis of whether or not the size of said image as specified by the image-display information and/or the amount of information in the image data of said image are/is smaller than or equal to (a) predetermined threshold(s); and, if it is determined that said image has a decorative purpose, converts said Web content into a piece of information containing alternative information, which indicates that said image has a decorative purpose, by associating the alternative information to said image.

Description

Web content conversion apparatus, Web content conversion method and a recording medium

The present invention relates to a technique for converting a Web content by applying alternative information to decorative purposes of images included in the Web content.

There are W3C (World Wide Web Consortium) is a guideline that is recommended WCAG (Web Contents Accessibility Guideline) 2.0 Edition (Non-patent Documents 1 and 2). This guideline is a guideline for creating Web content that are friendly to people with disabilities and the elderly. According to the WCAG2.0 edition, in the item "Success Criterion 1.1.1 non-text content", "to all non-text content that is presented to the user, there is an alternative text, which serve equivalent of purpose." there is a standard of the. The intent of this reference by providing a "alternate text, information is capable of being rendered in different ways by different user agents. For example, a user can not see the photographs, synthesized speech it is possible to read aloud the alternative text is used. also, users that can not listen to the audio file, if the alternate text is displayed, is that possible. "able to read it.
However, on the other hand, the image included in the Web content in some cases images are used for decorative purposes has no meaning. The Web content to output the device and presents the information of the alternative text in accordance with an alternative text of the image to the user, meaningless information is often output. Therefore, to understand the contents of the Web content becomes complicated for the user. Thus in some cases to skip the process of the apparatus will present information Alternate text for images decorative purposes.
According to WCAG2.0 Edition, in "mounting method capable of satisfying the success criteria" in "Success Criteria 1.1.1 non-text content", examples of implementation are given. The "Status F" is an item of "mounting method capable of satisfying the success criteria", "H67: in img elements of the image to be ignored assistive technology, and the alt attribute value to empty (empty), title attributes situation has been mentioned that it does not grant "the. As an example of how to implement in this situation, "The following imageis used to insert a decorative image on a Web page." Does not grant the title attribute in the sky (empty) the alt attribute value of the img tag to the item that the method is illustrated ing.
To satisfy each such reference, there is a related technology to convert Web content (for example, Patent Document 1).
Related technology described in Patent Document 1, when the image included in the Web content is less than the predetermined display width or predetermined display height, it determines that the image is decorative purposes, based on the determination result to adapt the method of displaying Web content Te.

JP-T 2007-509385 JP

W3C (World Wide Web Consortium) WCAG (Web Contents Accessibility Guideline), Internet <http: // www. w3. org / TR / WCAG20 />, [ 2010 April 8, Search] WCAG 2.0 Reference, Internet <http: // www. jsa. or. jp / stdz / instac / commitee- acc / W3C-WCAG / WCAG20 / UNDERSTANDING-WCAG20 / index.html # contents w3. org / TR / WCAG20 />, [ 2010 April 8, Search

Related technology described in Patent Document 1, can not be added appropriately alternative text to image decorative purposes. This is because the image is equal to or decorative purposes, but are not dependent only on the display size of the image.
[The purpose of the invention]
One object of the present invention, Web content conversion method capable of adding a proper alternative text to image decorative purposes, is to provide a Web content conversion device and a recording medium.

The first Web content conversion device according to one embodiment of the present invention, from the Web content, and image data specifying unit for specifying the information amount of the image data of the image included in the Web content from the Web content, displaying the image information specifying the size of the display size specifying unit for specifying the image display information, at least some predetermined threshold between the information amount of the image data size and the image specified by the image display information of the image to be a decoration image determining unit that the image outputs the determined decoration determination information whether a decorative object based on the whether the following, based on the decorative determination information, the image determined to be a decoration purpose hand, by associating the replacement information indicating that the image the image is decorative purposes, the Web content to the information including the replacement information And a Web content converter for converting.
The first Web content conversion method in one aspect of the present invention is identified from the Web content, to identify the information amount of the image data of the image included in the Web content from the Web content, the size to display the image in identifying and image display information is information, at least a part is the image on the basis of or less than a predetermined threshold value decorative purposes with the information amount of the image data of the image display information and the image of the image whether judged outputs decorative determination information is based on said decorative determination information, to said image determined to be a decorative purposes associates substitute information indicating that the image the image is decorative purposes it is, converting the Web content to the information including the substitute information.
The first Web content conversion program according to one aspect of the present invention, the computer, the Web content, a process of specifying the information amount of the image data of the image included in the Web content from the Web content, displaying the image a process of specifying an image display information is information specifying the size, at least a portion of the information amount of the image data of the image display information and the image of the image based on or less than a predetermined threshold value to and processing the image to output the determined decoration determination information whether decorative purposes Te, based on the decorative determination information, to said image determined to be a decorative purposes, the image on the image decorative purposes it by associating alternative information indicating it to execute a process of converting the Web content to the information including the substitute information.

One advantage of the present invention can be added appropriately alternative text to image decorative purposes.

Figure 1 is a block diagram showing the configuration of a Web content conversion apparatus of the first embodiment of the present invention. Figure 2 is a flow chart showing an example of outline of the operation of the Web content conversion apparatus of the first embodiment. Figure 3 is a block diagram showing the configuration of a Web content converter decoration image determining unit in the first embodiment comprises a display sizing unit image data identification unit of the present invention. Figure 4 is a flowchart showing an example of the outline of the operation of the Web content conversion apparatus in the second embodiment. Figure 5 is a diagram showing the minimum required number of pixels to represent numbers.

It will now be described in detail with reference to the accompanying drawings embodiments of the invention. In each of the embodiments of the drawings and described in the specification, components having the same functions are given like reference numerals.
[First Embodiment]
Figure 1 is a block diagram showing the configuration of a Web content conversion apparatus 100 of the first embodiment of the present invention.
Referring to FIG. 1, Web content conversion apparatus 100 of the first embodiment of the present invention includes an image data specification unit 101, a display size identifying unit 102, a decoration image determining unit 103, a Web content converter 104 equipped with a. Image data identification unit 101 are connected with the display size identifying unit 102 and the decoration image determining unit 103. Display size specifying unit 102 are connected to the image data identification unit 101 and the decoration image determining unit 103. Decoration image determining unit 103 are connected to the image data identification unit 101 and the display size identifying unit 102 and the Web content converter 104. Web content converter 104 is connected to the ornamental image determining unit 103.
Image data specifying unit 101, the Web content and identifies the information amount of the image data of the image included in the Web content. Display size specifying unit 102, the Web content and identifies the image display information is information for specifying a size for displaying an image included in the content. Decoration image determining unit 103, based on at least a portion of the information amount of the image data of an image included in the size and the Web content specified by the image display information on or less than a predetermined threshold value, the image and determines whether or not the decorative purposes. The decoration image determining unit 103 outputs a decorative determination information indicating the determination result.
Here, the determination of at least a portion of the information amount of the image data of an image included in the size and the Web content to be specific or less than a predetermined threshold value by the image display information, the display size identifying unit 102 it may be implemented respectively by the image data specification unit 101, or may be implemented by the decoration image determining unit 103. The following embodiment is explained as an example of the former.
Web content converter 104, based on the decorative determination information, the image of the Web content decoration image determining unit 103 determines that a decorative object, by associating the replacement information indicating that the image is a decorative purposes , it converts the Web content to the information containing the alternate information.
Such a configuration, which is one of the advantages of the present invention, the effect is obtained that the addition of appropriate alternative text to image decorative purposes.
Next, detailed configuration of each part of the Web content conversion apparatus 100 shown in FIG.
=== image data identification unit 101 ===
Image data identifying unit 101 identifies the amount of data of the image for each image included in the Web content to be inspected.
The amount of data of the image, and the like for example, the number of pixels of the image. The Web content 108 may include, for example, a document described by a markup language (Markup Language). Web content is specifically, HTML (HyperText Markup Language), including contents described in a language such as XHTML (Extensible HyperText Markup Language),. The Web content may include, for example, a document described by a markup language (Markup Language). Web content is specifically, HTML (HyperText Markup Language), including contents described in a language such as XHTML (Extensible HyperText Markup Language),.
Image data identification unit 101 determines whether includes an image to the Web content to be inspected. Specifically, the image data specifying part 101 determines element indicating an instruction for displaying an image on the output unit (not shown) such as a display, whether or not included in the Web content. Image data identification unit 101 determines whether includes an image based on the determination described above. The element indicating an instruction for displaying an image, for example, if the Web content including files described in HTML (HyperText Markup Language), include tag element comprising a tag <img> that the file contains.
Image data specifying unit 101, when determining that contains images in Web content, referring to the data of the image, identifies the amount of data of the image. For example, the image data specifying part 101 specifies a predetermined image based on an image file indicating information included in the element indicating an instruction for displaying an image, it identifies the amount of data of the image.
The image data identification unit 101, information of the data of the image is judged whether it is below a predetermined first threshold value. For example, the image data specifying unit 101, the number of pixels existing in one direction of the axis of the data of the image, the number of pixels in a different other axis is the direction of the aforementioned, at least one of a predetermined It determines the whether the following first threshold. In addition, for example, the image data specifying unit 101, the number of pixels width direction of the data of the image, the image number in the height direction of the data of the image, at least one is equal to or less than a predetermined first threshold value judge. The first threshold may be a different value depending on the direction of the data of the image.
=== display size identifying unit 102 ===
Image data identification unit 101, when the amount of data of an image is determined not less than a predetermined threshold value, the display size specifying unit 102 executes the following processing. That display size identifying unit 102, image display information corresponding to the element indicating the instruction for displaying an image of the aforementioned, it determines whether or not included in the Web content. The image display information is information for specifying a size for displaying an image included in the Web content to be inspected. For example, if it contains files that Web content is written in HTML, images display information, '<img src = "~"; width = "100"; height = "100">' portion of the 'width = " 100 "; height =" corresponds to the 100 " '. Also, if it contains files that Web content is written in HTML, images display information, CSS contained in (Cascading Style Sheet) 'img {width = "100"; height = "100"}' part 'width = "100"; corresponding to the height = "100" '.
Display size specifying unit 102, the information for identifying the image display information may be previously stored. For example, display size specifying unit 102, the character string information for specifying a predetermined character string; stored (for example 'width = "~ numerical ~" height = "~ numerical ~"'). The display size specifying unit 102 may specify the image display information from the Web content, such as by pattern matching with the character string information and Web content. Also, if it contains files that Web content written in HTML, display size specifying unit 102, stores the tag information specifying the predetermined mark up tags containing the Web content (for example, "img ..." information, etc.) keep. The display size specifying unit 102 may specify the image display information from the Web content, such as by pattern matching with the tag information and Web content.
Display size specifying unit 102 determines whether the image display information. The display size specifying unit 102, when it is determined that there is the image display information, based on the image display information, specifying the size of an image is displayed. Size image is displayed may be expressed on the basis of the different lengths of the other direction to the direction of length and the above-mentioned one-way image example displayed.
Display size specifying unit 102, the size of the image is displayed is determined whether less than a predetermined second threshold value. For example, display size specifying unit 102, the length of the one-way of the image displayed, whether the length of the other different directions, at least one is equal to or less than a predetermined second threshold value to the one direction described above determines whether or not the. Also, for example, display size specifying unit 102, the length of the horizontal direction of the image to be displayed, determining whether the vertical length of the image to be displayed, at least one is equal to or less than a predetermined second threshold to. The second threshold may be a different value depending on the direction of the image displayed.
=== decoration image determining unit 103 ===
Image data specification unit 101, if the amount of data of the image is determined to be equal to or less than a predetermined first threshold value, or the display size specifying unit 102, the size of the image is displayed reaches a predetermined second when determined to be below the threshold, the decoration image determining unit 103 executes the following processing. That decoration image determining unit 103 generates a decorative determination information indicating that the corresponding image is decorative purposes, and stores the decoration determination information.
Information This decorative determination information, which the relevant "element indicating an instruction to display an image", the "element indicating the instruction to display the image" associated with information indicating a position included in Web content and may be a decorative image location information is. In this embodiment, the decoration image determining unit 103 generates a decoration image point information, and stores the decoration image part information.
For all the images by the image data identification unit 101 or the display size specifying unit 102 is included in the Web content, after executing the above determination process, the decoration image determining unit 103, a decoration image location information to the Web content converter 104 hand over.
=== Web content converter 104 ===
Web content converter 104 receives the decoration image point information from the decoration image determining unit 103. The Web content converter 104, for each element contained in the Web content specified by "element indicating the instruction for displaying an image" included in the decoration image position information, adding the alternative information to the element, an alternative to convert the Web content to the information, including information. Web content that has been converted by the Web content converter 104 is expressed as the converted Web content.
The replacement information is that the alternative text to be subjected to serve the purpose of non-text content. For example Web content converter 104, for each element contained in the Web content specified by "image element indicating the display instruction", an attribute value of a predetermined attribute included in the element which is replacement information "" ( that is, the value is replaced with "empty (empty)"). The predetermined attribute, for example, is an attribute for adding alternative text to be subjected to serve the purpose of non-text content.
Web content converter 104 performs each conversion described above, for all the elements included in the Web content specified by "element indicating the instruction for displaying an image" included in the decoration image part information. The Web content converter 104 outputs as converted Web content Web content above conversion has been performed.
Figure 2 is a flow chart showing an example of outline of the operation of the Web content conversion apparatus 100 of the first embodiment of the present invention.
Image data specification unit 101, the Web content to be inspected, still determines whether includes an image that is not examined (step S501). Image data identification unit 101, ( "No" in step S501), the processing of the Web content conversion apparatus 100 when it is determined that no image is included have not yet examined Web content, the process proceeds to step S506.
Image data specifying section 101, yet when it is determined that includes an image that is not examined (step S501 "Yes"), identifies the amount of data of the image. The image data identification unit 101, information of the data of the image is judged whether it is below a predetermined first threshold value (step S502).
Image data specification unit 101, if the amount of data of the image is equal to or less than a predetermined first threshold value ( "Yes" in step S502), the processing of the Web content conversion apparatus 100, the process proceeds to step S505.
Image data specification unit 101, if the amount of data of the image is determined to be equal to or greater than a predetermined first threshold value (step S502 "No"), the element indicating a command for displaying an image on the display size specifying unit 102 give. Display size identifying unit 102, image display information corresponding to the element indicating the instruction to display the image received from the image data specifying part 101 determines whether or not included in the Web content (step S503).
Display size specifying unit 102, when the image display information corresponding to the elements described above is determined to be included in the Web content ( "Yes" in step S503), on the basis of the image display information, an image is displayed to identify the size. The display size specifying unit 102, the size of the image is displayed is determined whether less than a predetermined second threshold value (step S504).
On the other hand, the display size specifying unit 102, when the image display information corresponding to the above-mentioned element is determined not to be included in the Web content ( "No" in step S503), the processing of the Web content conversion apparatus 100, step S501 Back to.
Display size specifying unit 102, ( "Yes" in step S504), the processing of the Web content conversion apparatus 100 when the size of the image is displayed is equal to or less than a predetermined second threshold value, the process proceeds to step S505 . On the other hand, the display size specifying unit 102, when the size of the image is displayed is determined to be greater than a predetermined second threshold value ( "No" in step S504), the processing of the Web content conversion apparatus 100, in step S501 Return.
If the information amount of the data of the image is determined to be equal to or less than the first threshold value ( "Yes" in step S502), or if the size of the image is displayed is determined to be equal to or less than the second threshold value ( "Yes" in step S504), the decoration image determining unit 103 executes the following processing. That decoration image determining unit 103, corresponding to as "element indicating the instruction to display an image", the "element indicating the instruction to display the image" in association with information indicating a position included in Web content stores a decoration image point information (step S505). Then, the processing of the Web content conversion apparatus 100 returns to step S501.
Image data specification unit 101, if it is determined that no image is included have not yet examined Web content ( "No" in step S501), the Web content converter 104, the decoration image point from the decoration image determining unit 103 receive the information. The Web content converter 104, for each element contained in the Web content specified by "element indicating the instruction for displaying an image" included in the decoration image position information, adding the alternative information to the element, an alternative convert Web content to information including information (step S506).
Web content conversion apparatus 100 of the first embodiment of the present invention, if the amount of data of the image is determined to be equal to or less than the first threshold value, or size which an image is displayed second If it is determined that the threshold value or less, the following process is performed. That Web content conversion apparatus 100 includes a corresponding "element indicating an instruction to display an image", the "element indicating the instruction to display the image" in association with information indicating a position included in Web content stores a decoration image part information. The Web content conversion apparatus 100, for each element in the Web content specified by "element indicating the instruction for displaying an image" included in the decoration image position information, adding the alternative information to the element, an alternative to convert the Web content to the information, including information.
That, Web content conversion apparatus 100 of the first embodiment of the present invention, for example, be sized to display an image is a predetermined second threshold value or more images, amount of data of the image is given If it is the first threshold value or less, and can determine its image as a decorative purposes.
For example, in order to shape the layout of the information displayed on the Web content, there is a case where the spacer image is used for Web content. The spacer image, in order to displayed as intended by the creator layout of the content in a Web browser CSS does not function effectively, an image to be inserted. In addition to the spacer image, for example, it has the same color as the background color, which is an image that does not present any of meaning to the use of the content. The spacer image, the display size of the image is specified according to the design of the Web content, there is a possibility that the size is equal to or higher than a predetermined second threshold value. Thus as in the technique described in Patent Document 1, when the image is determined whether it is for decorative purposes only based on the display size of the image can not be identified as an image of the decorative purposes the above spacer images. That the technique described in Patent Document 1 is less determined accurately whether the image is a decorative purposes.
Further, for example, the Web content, the size of the image width of 1 dot, height 32 dots, there is a case where the image is displayed is stretched to 32 dots in the width direction. At this time, the image of 1 dot by 32 gradations in the height direction gradient is applied. The stretched image, width of 32 dots, are displayed as the height 32 dot gradation image. This gradation image is an image that does not present any of meaning to the use of the content. However, this gradation image, display size is equal to or greater than a predetermined second threshold value. In this case, as in the technique described in Patent Document 1, when an image based on only the display size of the image to determine whether the decorative purposes, can not be identified as an image of the decorative object gradation image described above . That the technique described in Patent Document 1 is less determined accurately whether the image is a decorative purposes.
On the other hand, Web content conversion apparatus 100 of the first embodiment of the present invention determines whether a decorative purposes based on the size of the image. Therefore image as the aforementioned spacer image or a gradation image also can be determined that decorative purposes. That Web content conversion apparatus 100 according to the first embodiment, can be added appropriately alternative text to image decorative purposes.
Also, Web content conversion apparatus 100 of the first embodiment of the present invention, alternative information when read the image of the decorative purposes outside the speech reading means can be appropriately added. This is because, Web content conversion apparatus 100, because whether or not the image of the decorative object can be properly determined.
Web content conversion apparatus 100 of the first embodiment of the present invention, by adding the substitute information appropriately skip unnecessary information for users by voice reading means, the Web content to the information containing the alternate information Convert. Therefore Web content conversion apparatus 100 of the first embodiment of the present invention can output a Web content that satisfies the accessibility in consideration for elderly and disabled people.
In a first embodiment of the present invention, the decoration image determining unit 103 may include a display size identifying unit 102 and the image data specification unit 101. 3, the decoration image determining unit 103 in the form of the first embodiment is a block diagram showing the configuration of a Web content converter 100 and a display size identifying unit 102 and the image data specification unit 101.
[Second Embodiment]
Second embodiment of the present invention is a specific example of the first embodiment of the present invention. Assume Web content in the present embodiment and the HTML file is a file written in HTML, and includes an image.
Web content conversion apparatus 100 of the second embodiment of the present invention has the same function as that of the Web content conversion apparatus 100 of the first embodiment. Therefore description according to the configuration of the Web content conversion apparatus 100 of the second embodiment of the present invention will be omitted.
Figure 4 is a flowchart showing an example of the outline of the operation of the Web content conversion apparatus 100 of the second embodiment of the present invention.
Image data specification unit 101, the HTML file included in the Web content to be inspected, still determines whether includes an image that is not examined (step S601). Image data specification unit 101, specifically the presence or absence of a tag element that specifies the image file, still determines whether includes an image that is not examined. The tag element that specifies the image file, for example, '<img src = "~"; width = "100"; height = "100">' is part of the applicable.
Image data identification unit 101, ( "No" in step S601), the processing of the Web content conversion apparatus 100 when it is determined that no image is included have not yet examined Web content, the process proceeds to step S606.
Image data specifying section 101, yet when it is determined that includes an image that is not examined (step S601 "Yes"), identifies the amount of data of the image. Image data specification unit 101 refers to the image corresponding to the image file specified in the aforementioned tag element (e.g., 'src = "~"'). The image data identification unit 101 identifies the image width of the reference image and the image height.
Image data identification unit 101, information of the data of the image is judged whether it is below a predetermined first threshold value (step S602). For example, the image data specifying unit 101, either the image width and image height determines whether less than a predetermined first threshold value. Here, the predetermined first threshold is a value for image to determine whether it is for decorative purposes. For example, referring to FIG. 5, the minimum image width for expressing the number is 3 dots, it is shown that the image height is 5 dots. When expressing alphabets and kanji, hiragana, the various expressions than numbers, such as katakana as an image, image width or image height of the image, it is necessary greater than the value described above. Images with smaller image width or image height above values, it is difficult to express some meaning in itself. Accordingly, an image having a small image width or image height than the above value, may be considered as an image of the decorative purposes. That predetermined first threshold value may be an image width of 3 dots and image height 5 dots. Predetermined first threshold described above are illustrative, not limited.
Image data specification unit 101, if the amount of data of the image is equal to or less than a predetermined first threshold value ( "Yes" in step S602), the processing of the Web content conversion apparatus 100, the process proceeds to step S605.
Image data specification unit 101, if the amount of data of the image is determined to be equal to or greater than a predetermined first threshold value (step S602 "No"), the element indicating a command for displaying an image on the display size specifying unit 102 give. Display size identifying unit 102, image display information corresponding to the element indicating the instruction to display the image received from the image data specifying part 101 determines whether or not included in the Web content (step S603).
The image display information, for example the aforementioned, a tag element that specifies the image file '<img src = "xxx.bmp"; width = "100"; height = "100">' of 'width = " 100 "; height =" corresponds to the 100 " '. Or, the image display information, for example, if the tag element is not directly described as the image display information includes the style attribute in the HTML file 'img {width = "100"; height = "100"}' part true; 'height = "100" width = "100"' of. Further, the image display information, for example, when the image display information on the tag element not described directly, included in the style sheet is included in the Web content 'img {width = "100"; height = "100"}' part true; 'height = "100" width = "100"' of.
Display size specifying unit 102, when the image display information corresponding to the elements described above is determined to be included in the Web content ( "Yes" in step S603), on the basis of the image display information, an image is displayed to identify the size. The display size specifying unit 102, the size of the image is displayed is determined whether less than a predetermined second threshold value (step S604).
The predetermined second threshold value is a value for image to determine whether it is for decorative purposes. The second threshold may be the same as the first threshold value, or different values. For example, the predetermined second threshold may be a first display width 3 is the same value as the threshold value of the dot and the display height 5 dots. Predetermined second threshold value described above are illustrative, not limited.
On the other hand, the display size specifying unit 102, when the image display information corresponding to the above-mentioned element is determined not to be included in the Web content ( "No" in step S603), the processing of the Web content conversion apparatus 100, step S601 Back to.
Display size specifying unit 102, ( "Yes" in step S604), the processing of the Web content conversion apparatus 100 when the size of the image is displayed is equal to or less than a predetermined second threshold value, the process proceeds to step S605 . On the other hand, the display size specifying unit 102, when the size of the image is displayed is determined to be greater than a predetermined second threshold value ( "No" in step S604), the processing of the Web content conversion apparatus 100, in step S601 Return.
If the information amount of the data of the image is determined to be equal to or less than the first threshold value ( "Yes" in step S602), or if the size of the image is displayed is determined to be equal to or less than the second threshold value ( "Yes" in step S604), the decoration image determining unit 103 executes the following processing. That decoration image determining unit 103, corresponding to as "element indicating the instruction to display an image", the "element indicating the instruction to display the image" in association with information indicating a position included in Web content stores a decoration image point information (step S605). Then, the processing of the Web content conversion apparatus 100 returns to step S601.
Image data specification unit 101, if it is determined that no image is included have not yet examined Web content ( "No" in step S601), the Web content converter 104, the decoration image point from the decoration image determining unit 103 receive the information. The Web content converter 104, for each element contained in the Web content specified by "element indicating the instruction for displaying an image" included in the decoration image position information, adding the alternative information to the element, an alternative convert Web content to information including information (step S606).
The replacement information is that the alternative text to be subjected to serve the purpose of non-text content. For example Web content converter 104, if there is no alt attribute tag elements contained in the Web content specified by "element indicating the instruction to display the image" as the attribute value of alt attributes "" (ie, the value is "Check the (empty) ") will be added to the tag element. Also, Web content converter 104, if the tag elements in the Web content specified by "image elements indicating a command for displaying" has alt attribute, the attribute value of the alt attribute of the tag element "" ( that is, the value is replaced with "empty (empty)"). Results Web content conversion unit 104 adds an attribute value of the alt attribute, or substituted results, for example '<img src = "xxx.bmp"; width = "100"; height = "100"; alt = "" > made in the form of '.
Above, the embodiments described so far is a preferred embodiment of the present invention and are not intended to limit the scope of the present invention to the above embodiments. Each embodiment is capable of embodiment in the form subjected to various modifications without departing from the scope of the present invention.
The constituent elements in each embodiment of the present invention is to realize the function by hardware, of course, can be implemented by a computer and a program. Program is provided by being recorded in a computer-readable recording medium such as a magnetic disk or a semiconductor memory, it is read by the computer, such as during start-up of the computer. The read program, by controlling the operation of the computer, cause the computer to function as components in the above-described embodiments.
One advantage of the present invention can be added appropriately alternative text to image decorative purposes.
This application claims priority based on Japanese Patent Application No. 2010-090523 filed on April 9, 2010, the entire disclosure of which is incorporated herein.
Some or all of the above-described embodiment, can be described as the following notes, not limited to the following.
(Note 1)
From Web content, and image data specifying unit for specifying the information amount of the image data of the image included in the Web content,
From the Web content, and display size specifying unit for specifying the image display information is information for specifying a size for displaying the image,
The image is determined whether it is for decorative purposes on the basis of at least a portion of the information amount of the image data size and the image specified by the image display information of the image to or less than a predetermined threshold value a decoration image determining unit for outputting a decorative determination information,
Based on the decorative determination information, to said image determined to be a decoration object, by associating the replacement information indicating that the image is a decorative purposes, converting the Web content to the information including the replacement information and a Web content converter, Web content conversion device.
(Note 2)
A Web content conversion device according to note 1,
The decoration image determining unit, the information amount of the image data of the image is less than a predetermined first threshold value, is equal to or higher than the predetermined second threshold magnitude which is identified based on the image display information of the image If, it is determined that the image is decorative purposes, Web content conversion device.
(Note 3)
A Web content conversion device according to Appendix 1 or 2,
Information amount of the image data is the number of pixels of the image data,
The decoration image determining unit is at least partially the image decorative purposes on the basis of or less than a predetermined threshold value of the number of pixels the size and the image data specified based on the image display information of the image It determines whether or not, Web content conversion device.
(Note 4)
It Supplementary Note 1 A Web content conversion device according to any one of 3,
Said image display information, one-way and the length of the image to be displayed, and the one-way is information that identifies the the length of the other different directions,
The decoration image determining unit, at least a portion of the length of said one direction is specified based on the image display information and the other length of the direction and amount of information of said image data of said image is less than a predetermined threshold value determining whether whether the image is a decorative purposes based on, Web content conversion device.
(Note 5)
Appendix 1 to a Web content conversion device according to any one of 4,
The information amount of the image data of the image, the number of pixels existing in one direction of the axis of the image data is, the number of pixels in a different other axis than said one direction,
The decoration image determining unit, at least a part of the number of pixels existing in one direction of the other direction and the number of pixels present in the shaft axis of the size and the image data specified based on the image display information It determines whether the image is a decorative purposes on the basis of or less than a predetermined threshold value, Web content conversion device.
(Note 6)
From the Web content, to identify the information amount of the image data of the image included in the Web content,
Wherein the Web content, specifies an image display information is information for specifying a size for displaying the image,
At least a portion outputs decorative determination information to determine whether the image is a decorative purposes on the basis of or less than a predetermined threshold value of the information amount of the image data of the image and the image display information of the image and,
Based on the decorative determination information, to said image determined to be a decoration object, by associating the replacement information indicating that the image is a decorative purposes, converting the Web content to the information including the replacement information , Web content conversion method.
(Note 7)
On the computer,
From Web content, a process of specifying the information amount of the image data of the image included in the Web content,
From the Web content, a process of specifying an image display information is information for specifying a size for displaying the image,
At least a portion outputs decorative determination information to determine whether the image is a decorative purposes on the basis of or less than a predetermined threshold value of the information amount of the image data of the image and the image display information of the image and the process of,
Based on the decorative determination information, to determine the image to be decorative purposes, by associating the replacement information indicating that the image is a decorative purposes, the process of converting the Web content to the information including the replacement information Web content conversion program for the, execution.

Web content conversion device of the present invention, the image of the decorative object included in the Web content, to confer replacement information for that image, the application of outputting the Web content that satisfies the accessibility in consideration for elderly and disabled It can be applied.

100 Web content conversion apparatus 101 the image data identification unit 102 display size specifying unit 103 decoration image determining unit 104 Web content converter

Claims (7)

  1. From Web content, and image data specifying unit for specifying the information amount of the image data of the image included in the Web content,
    From the Web content, and display size specifying unit for specifying the image display information is information for specifying a size for displaying the image,
    The image is determined whether it is for decorative purposes on the basis of at least a portion of the information amount of the image data size and the image specified by the image display information of the image to or less than a predetermined threshold value a decoration image determining unit for outputting a decorative determination information,
    Based on the decorative determination information, to said image determined to be a decoration object, by associating the replacement information indicating that the image is a decorative purposes, converting the Web content to the information including the replacement information and a Web content converter, Web content conversion device.
  2. A Web content conversion device according to claim 1,
    The decoration image determining unit, the information amount of the image data of the image is less than a predetermined first threshold value, is equal to or higher than the predetermined second threshold magnitude which is identified based on the image display information of the image If, it is determined that the image is decorative purposes, Web content conversion device.
  3. A Web content conversion device according to claim 1 or 2,
    Information amount of the image data is the number of pixels of the image data,
    The decoration image determining unit is at least partially the image decorative purposes on the basis of or less than a predetermined threshold value of the number of pixels the size and the image data specified based on the image display information of the image It determines whether or not, Web content conversion device.
  4. A Web content conversion device according to any one of claims 1 to 3,
    Said image display information, one-way and the length of the image to be displayed, and the one-way is information that identifies the the length of the other different directions,
    The decoration image determining unit, at least a portion of the length of said one direction is specified based on the image display information and the other length of the direction and amount of information of said image data of said image is less than a predetermined threshold value determining whether whether the image is a decorative purposes based on, Web content conversion device.
  5. A Web content conversion device according to any one of claims 1 to 4,
    The information amount of the image data of the image, the number of pixels existing in one direction of the axis of the image data is, the number of pixels in a different other axis than said one direction,
    The decoration image determining unit, at least a part of the number of pixels existing in one direction of the other direction and the number of pixels present in the shaft axis of the size and the image data specified based on the image display information It determines whether the image is a decorative purposes on the basis of or less than a predetermined threshold value, Web content conversion device.
  6. From the Web content, to identify the information amount of the image data of the image included in the Web content,
    Wherein the Web content, specifies an image display information is information for specifying a size for displaying the image,
    At least a portion of the information amount of the image data of the image and the image display information of the image is the image is determined whether it is for decorative purposes on the basis of or less than a predetermined threshold value,
    If the image is determined to be a decorative purposes, the image in the image by associating the replacement information indicating that the decorative purposes, converting the Web content to the information including the substitute information, Web content conversion Method.
  7. On the computer,
    From Web content, a process of specifying the information amount of the image data of the image included in the Web content,
    From the Web content, a process of specifying an image display information is information for specifying a size for displaying the image,
    At least a portion outputs decorative determination information to determine whether the image is a decorative purposes on the basis of or less than a predetermined threshold value of the information amount of the image data of the image and the image display information of the image and the process of,
    Based on the decorative determination information, to determine the image to be decorative purposes, by associating the replacement information indicating that the image is a decorative purposes, the process of converting the Web content to the information including the replacement information a recording medium recording a Web content conversion program for the, execution.
PCT/JP2011/055856 2010-04-09 2011-03-07 Web-content conversion device, web-content conversion method, and recording medium WO2011125419A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005527057A (en) * 2002-09-05 2005-09-08 オペラ ソフトウェア エイエスエイ html content presentation to the small screen terminal display
JP2007509385A (en) * 2003-09-30 2007-04-12 ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニーBritish Telecommunications Public Limited Company Web content adaptation processes and systems
JP2008287538A (en) * 2007-05-18 2008-11-27 Nippon Telegr & Teleph Corp <Ntt> Content conversion apparatus, content conversion method, and content conversion program

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005527057A (en) * 2002-09-05 2005-09-08 オペラ ソフトウェア エイエスエイ html content presentation to the small screen terminal display
JP2007509385A (en) * 2003-09-30 2007-04-12 ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニーBritish Telecommunications Public Limited Company Web content adaptation processes and systems
JP2008287538A (en) * 2007-05-18 2008-11-27 Nippon Telegr & Teleph Corp <Ntt> Content conversion apparatus, content conversion method, and content conversion program

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