JP2012008585A - Display control device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow an image quality to be optimized per use of display data.SOLUTION: A display control device (8) takes in image data of a display object window and a use attribute of the window, which are sent from a personal computer (1), takes out image quality correction data corresponding to the use attribute from image quality correction data preliminarily held in an image quality correction data table (18), uses the image quality correction data to correct the image data of the display object window, and displays a resultant image on a screen (10). Thus, the image which has the image quality optimized per use attribute of the display object window can be displayed.

Description

  The present invention relates to a display control device and a display control method, and more particularly to a display control device and a display control method used in combination with a personal computer equipped with a general-purpose operating system (OS) compatible with a graphical user interface (GUI).

  The GUI refers to a user interface that uses a lot of graphics for displaying information to the user and can perform most basic operations with a pointing device such as a mouse. Many of the current OSs implement a basic mechanism for using the GUI, and the designer of the application program realizes a desired function while appropriately using these mechanisms. For this reason, it is possible to unify the operational feeling of various application programs operating on the OS, and to improve the development efficiency of application programs.

  Many application programs use a GUI object called a “window” provided by the OS as an interface for displaying information to the user or receiving input from the user. This window has an application area called a client area under the title bar placed at the top. Various information for displaying information to the user and receiving input from the user are displayed in the client area. Can be laid out freely.

  For example, a text processing application program such as a word processor places text display and editing controls in the client area, or a presentation application program controls presentation data display and editing in the client area. In an application program for arranging or viewing images, controls for image display and processing are arranged in the client area.

  In general, a GUI-compatible OS can perform multitask processing, and can execute a plurality of application programs simultaneously. For example, when the above three application programs are executed at the same time, three windows on the display of the personal computer, that is, a text creation application program window, a presentation application program window, and an image viewing and processing application The program window is displayed.

  Of these three windows, the window that is the target of the user operation is called an “active window”. Which window is active can be identified by the color of the title bar. Usually, a window whose title bar has a darker tone is an “active window”. When all or some of the plurality of windows are overlapped, the window located in the foreground is the “active window” except in special cases.

  In addition, when changing the window size is permitted, the vertical and horizontal sizes of the active window can be changed individually or simultaneously, minimized or maximized, and the display position of the window can be changed. When permitted, the display position of the active window on the personal computer display can be moved arbitrarily.

  By the way, a display screen of a personal computer that operates on such a GUI-compatible OS may be used by being output to an external display device such as a projector and viewed by a large number of people. In this case, when the same screen as the display of the personal computer is output to the external display device, the desktop screen, the menu screen for display operation, and the like are displayed together with the active window to be displayed, so that it does not look good. In such a case, normally, the active window is dealt with by “maximizing” (displaying the entire display screen of the personal computer). This is because by maximizing, the desktop screen, the menu screen for display operation, and the like are hidden under the active window and cannot be seen.

  However, in general, in situations such as presentations, it is necessary to perform flexible operations as the presentation progresses. In such cases, the use of a desktop screen or a menu screen for display operations is indispensable. As described above, when the active window is maximized, the desktop screen, the menu screen for display operation, and the like are hidden behind the active window, which hinders flexible operation.

  Therefore, in such a case, the maximization of the active window must be temporarily canceled (minimized or restored to the original size), and as a result, an unnecessary screen may be temporarily displayed. Since it is projected on the screen, it is still impossible to improve the appearance.

  Therefore, Patent Document 1 describes a “recording medium on which a display control device and a display control program are recorded” (hereinafter, referred to as conventional technology) that can display only the information of the target window, focusing on this point. ing. In this conventional technique, a plurality of file data to be displayed on a monitor later are called and displayed as a window on the liquid crystal display unit of the personal computer, and any one of the window data is selected as an active window to be output by monitoring with a pointer. Then, the selected window data is enlarged in accordance with the display screen size of the external monitor input in advance, and in the storage area of the image data for external output secured in accordance with the display screen size of the external monitor. The system is such that data is written into a certain virtual external storage area, converted into a video signal, and output to an external monitor.

  According to this, even if multiple windows and other data are displayed on the liquid crystal display part of the personal computer, only the necessary windows are output on the monitor side, so an extra screen is not displayed on the monitor, It is said that the poor appearance can be improved.

JP 2000-339130 A

  However, the above-described conventional technique is advantageous in that an unnecessary screen is not displayed on the monitor and can improve an unpleasant appearance. However, the display target window is used (for example, for word processors, for presentations, for viewing images). Etc.) is not considered at all, and there is a problem that the display image quality for each application cannot be optimized.

  For example, in the case of character-based display data such as a word processor, it is easier to see with high brightness and strong contrast, while in the case of image-based display data such as presentation and image browsing software, color purity etc. Although it is easier to see, the above-mentioned conventional technology has to have a uniform display image quality regardless of the application. Therefore, when character-oriented display data is important, the image quality of image-oriented display data On the other hand, when the image-based display data is emphasized, the image quality of the character-based display data is inferior.

  Therefore, an object of the present invention is to provide a display control apparatus and a display control method that can optimize image quality for each application of display data.

According to the first aspect of the present invention, a capturing unit that captures image data of a display target window and a usage attribute of the window, a holding unit that stores image quality correction data for each usage attribute, and a usage captured by the capturing unit Extraction means for extracting image quality correction data corresponding to the attribute from the holding means; and correction means for correcting the image data of the display target window acquired by the acquisition means using the image quality correction data extracted by the extraction means; A display control device comprising display means for displaying image data that has been subjected to image quality correction by the correction means.
According to a second aspect of the present invention, the display target window is a window displayed on a display of a personal computer, and the usage attribute is an index indicating a usage type of the window displayed on the display, and 2. The display control apparatus according to claim 1, wherein the capturing unit captures image data of a display target window and a use attribute of the window sent from the personal computer.
According to a third aspect of the present invention, in the display control apparatus according to the second aspect, the usage attribute is a name of an application that has called the window or information for identifying the application.
4. The display control according to claim 2, wherein the use attribute is an extension of a file storing data to be displayed in the window or information for identifying the extension. Device.
The invention described in claim 5 is a capturing step for capturing image data of a window to be displayed and a usage attribute of the window, a holding step for storing image quality correction data for each usage attribute, and a usage captured by the capturing step. The image quality correction data corresponding to the attribute is extracted from the data held in the holding step, and the image data of the display target window acquired in the acquisition step is used as the image quality correction data extracted in the extraction step. A display control method comprising: a correction step that uses and corrects, and a display step that displays image data that has undergone image quality correction by the correction step.
According to a sixth aspect of the present invention, the display target window is a window displayed on a display of a personal computer, and the usage attribute is an index indicating a usage type of the window displayed on the display, and 6. The display control method according to claim 5, wherein the capturing step captures image data of a display target window sent from the personal computer and usage attributes of the window.

  According to the display control apparatus or the display control method of the present invention, the image data of the display target window sent from the personal computer and the usage attribute of the window are captured, and the image quality correction data corresponding to the usage attribute is stored in advance. Since the image data of the display target window is corrected and displayed using the image quality correction data, the image with optimized image quality is displayed for each use attribute of the display target window. Can do.

It is a system configuration figure of this embodiment. FIG. 3 is a screen configuration diagram of a display device 3 of the personal computer 1. 1 is a simplified block diagram of a personal computer 1. FIG. 3 is a simplified block diagram of a projector 8. FIG. 3 is a structural diagram of an image quality correction data table 18. FIG. FIG. 3 is a diagram illustrating a simplified flowchart of an “image output function” executed by the personal computer 1. FIG. 5 is a diagram showing a simplified flowchart of an “image projection function” executed by the projector 8. It is a figure (the 1) which shows the variation of use attribute acquisition. It is a figure (the 2) which shows the variation of use attribute acquisition. It is FIG. (The 3) which shows the variation of use attribute acquisition.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, taking application to a projector as an example. It should be noted that the specific details or examples in the following description and the illustrations of numerical values, character strings, and other symbols are only for reference in order to clarify the idea of the present invention, and the present invention may be used in whole or in part. Obviously, the idea of the invention is not limited. In addition, a well-known technique, a well-known procedure, a well-known architecture, a well-known circuit configuration, and the like (hereinafter, “well-known matter”) are not described in detail, but this is also to simplify the description. Not all or part of the matter is intentionally excluded. Such well-known matters are known to those skilled in the art at the time of filing of the present invention, and are naturally included in the following description.

  FIG. 1 is a system configuration diagram of this embodiment. In this figure, the personal computer 1 is a laptop type in which a keyboard 2 and a display device 3 such as a liquid crystal display are housed in the same housing 4 and an external mouse 5 is connected. However, the present invention is not limited to this. . Instead of the mouse 5, it may be provided with a built-in pointing device such as a touch pad, or may be a desktop type or other types.

  The personal computer 1 is mounted with a general-purpose OS that supports GUI and various application programs that run on the OS. In the illustrated display device 3, two windows W 1 and W 2 shown for convenience are drawn on a background screen (hereinafter referred to as “desktop screen”) provided by the OS. These windows W1 and W2 are user interface screens of arbitrary application programs currently being executed on the personal computer 1. However, the front window W1 is an active window during on-focus, and the rear window W2 is an inactive window.

  A projector 8 is connected to the external monitor output terminal 6 of the personal computer 1 via a cable 7. The projector 8 takes in an image signal output from the personal computer 1 and enlarges and projects it on a screen 10 via a projection lens 9.

  Usually, the image enlarged and projected on the screen 10 by the projector 8 and the image of the display device 3 of the personal computer 1 are the same. That is, in the case of the illustrated example, the desktop screen and the two windows W1 and W2 are also displayed on the screen 10. However, when a presentation or the like is performed, other than the display target window W1 (desktop screen, inactive window W2, etc.) is an obstacle. Therefore, in the present embodiment as well, only the window W1 to be displayed is enlarged and projected onto the screen 10 as in the technique of Patent Document 1 described at the beginning.

  FIG. 2 is a screen configuration diagram of the display device 3 of the personal computer 1. In this figure, the resolution (desktop screen size) of the display device 3 is, for example, an XGA (extended graphics array) of 1024 × 768 (pixels). The origin coordinate of the desktop screen is (0, 0) in the upper left corner. The position (SX1, SY1) of the window W1 displayed on the desktop screen is a relative position from the origin coordinate (0, 0) of the desktop screen. Similarly, the position (SX2, SY2) of the window W2 is also the origin of the desktop screen. The relative position from the coordinates (0, 0). The size of the window W1 is indicated by CY1 (vertical) and CX1 (horizontal). Similarly, the size of the window W2 is indicated by CY2 (vertical) and CX2 (horizontal).

  A solid-line window W1 is a display target window (active window) for enlarging and projecting onto the screen 10, and a broken-line window W2 is an operation window (inactive window) for replacing images in the display target window. It is.

  FIG. 3 is a simplified block diagram of the personal computer 1. In this figure, the personal computer 1 includes the display device 3, the keyboard 2, and the mouse 5 described above, and also includes a CPU 11, a storage device 12, a RAM 13, an output control unit 14, and the like.

  In response to an operation input from the keyboard 2 or the mouse 5, the CPU 11 loads a desired software resource such as an OS or an application program stored in the storage device 12 in advance into the RAM 13 and executes the software resource. And a desired function is realized by organic coupling with hardware resources of the personal computer 1.

  One of the desired functions is an image output function to the projector 8 connected to the personal computer 1. When executing this image output function, the CPU 11 outputs the size of the active window (window W1) on the desktop screen of the display device 3 and the image of the window W1 to the projector 8.

  That is, in the example of FIG. 2, the coordinates (SX1, SY1) of the display screen are set as the origin, and an image of CX1 in the horizontal direction and CY1 in the vertical direction are cut out from the origin, and the cut image (that is, the window W1) Image) and the cutout size (CX1, CY1) are output to the projector 8.

  As will be described later, the projector 8 performs a scaling process on the size (CX1, CY1) of the image of the window W1 sent from the personal computer 1 so that the projection image size of the projector 8 becomes full, and the scaled image is displayed on the screen. 10 is projected. The scaling process is an enlargement process when the projected image size of the projector 8 is larger than the image size of the window W1, and conversely, when the projected image size of the projector 8 is smaller than the image size of the window W1. Reduction processing is performed.

  In this way, an unnecessary screen such as a desktop screen or an inactive window W2 is output by outputting the image of the window W1 to be displayed and its image size to the projector 8, projecting the scaled processing by the projector 8, and projecting it onto the screen 10. Can be hidden, and an unnecessary image is not shown, for example, so that the effect of the presentation can be enhanced.

  This merit is the same as that of the prior art (Patent Document 1) described at the beginning. In the present embodiment, the image quality can be optimized for each use attribute of the display data by further providing the features described below. The advantage is obtained.

  That is, the CPU 11 of the personal computer 1 according to the present embodiment outputs the usage attribute of the display target window W1 to the projector 8 while executing the image output function. The “use attribute” is an index indicating the use type of each window (for text editing, image viewing, presentation, etc.), for example, the name of the window or information for identifying the name of the window, Alternatively, an extension of a file containing data to be displayed in the window or information for identifying the extension can be used as a use attribute.

  However, the actual name of each window is not unique. It is merely code information (a window ID or an instance handle that is valid only while the window is open) given each time by the calling application of the window (the window that creates the window).

  For this reason, when using the name of a window as a usage attribute, the name of the window itself (window ID or instance handle) is not directly used. For example, the name of the calling application of the window or the name of the application It is necessary to devise such as using information for identifying the name instead of the name of the window or the information for identifying the name of the window. Incidentally, the name of the caller application of the window can be obtained by using the handle (hWnd) of the parent window (caller application window) passed to the window.

  FIG. 4 is a simplified block diagram of the projector 8. The projector 8 includes a position control unit 15, a scaler unit 16, an image quality control unit 17, an image quality correction data table 18, an image quality conversion unit 19, a display control unit 20, a light source 21, a display element 22, a projection optical system 23, and the like.

  The position control unit 15 is sent from the computer 1 based on the size of the display target window (size: SX1, SY1) sent from the computer 1 and the projection size of the projector 8 given in advance. Calculate the scaling ratio (enlargement ratio or reduction ratio) of the image of the display target window. The scaler unit 16 performs a scaling process on the image of the display target window sent from the computer 1 using the scaling rate.

  The image quality control unit 17 refers to the image quality correction data table 18 based on the usage attribute of the display target window sent from the computer 1 and looks up appropriate image quality correction data from the image quality correction data table 18. The image quality conversion unit 19 corrects the image quality (contrast, brightness, hue, color space, saturation, etc.) of the image after the scaling process based on the looked up image quality correction data.

  The display control unit 20 drives the display element 22 in units of pixels of an image that has been subjected to scaling processing and image quality correction. The display element 22 is a light modulation device such as a DMD (digital micromirror device) or a liquid crystal panel, for example, and modulates high-intensity white light from the light source 21 with pixel information from the display control unit 20. The projection optical system 23 includes one or more optical lenses, and magnifies and projects the modulated light from the display element 22 onto the screen 10. The projector 8 according to the present embodiment is naturally compatible with color images, and the display element 22 is a color separation image (an image obtained by separating one color image into the three primary colors of light) sent from the display control unit 20. Each is driven in a time-sharing manner. When the display element 22 is constituted by DMD, a color filter (not shown) provided between the light source 21 and the display element 22 is rotated in synchronization with the timing of the time division drive. The high-luminance white light from the light source 21 is color-separated, and each color light is sequentially irradiated to the display element 22, or when the display element 22 is constituted by a liquid crystal panel, the color on the front surface of the liquid crystal panel Color separation is performed using a filter.

  FIG. 5 is a structural diagram of the image quality correction data table 18. In this figure, the image quality correction data table 18 includes a use attribute field 18a and an image quality correction data field 18b. The image quality correction data field 18b further includes a contrast field 18c, a lightness field 18d, a hue field 18e, and a color space field 18f. And a saturation field 18g.

  In the use attribute field 18a, typical use attributes that may be sent from the personal computer 1 to the projector 8 are stored. For example, in the example shown in the figure, usage attributes such as “presentation” in the first record, “photograph” in the second record, “monochrome” in the third record, “high saturation” in the fourth record, “sepia” in the fifth record, etc. Is stored. “Presentation” means a document created by a presentation application program, for example, the name of the presentation application program or information for identifying the name, or the file extension or extension of the presentation application program It is information for identifying. “Photo” means a document created by the image viewing application program, for example, the name of the image viewing application program or information for identifying the name, or the file extension of the image viewing application program. Information for identifying a child or its extension. Furthermore, “monochrome”, “high saturation”, or “sepia” means a document having a special image quality or processing among documents created by the same image viewing application program, for example, an image viewing application program The name or the information for identifying the name is added with the specified processing information, or the file extension of the image viewing application program or the information for identifying the extension is added with the specified processing information. It is a thing.

  Various data stored in the image quality correction data table 18 are appropriate image quality correction data for each use attribute. For example, in the case of a presentation, it is empirically known that a good image quality can be obtained by correcting the contrast, brightness, hue as they are, normal color space, and saturation.

  Similarly, it has been empirically known that, in the case of photographs, good image quality can be obtained by correcting the contrast to normal, lightness normal, and hue as they are, and correcting to the color space sRGB and normal saturation. It has been empirically known that good image quality can be obtained by correcting to normal, lightness, hue, color space normal, and saturation 0. In the case of high saturation, the contrast is increased, lightness normal, hue unchanged, color space normal. It has been empirically known that good image quality can be obtained by correcting to higher saturation. In the case of sepia, it is better to correct to lower contrast, lower brightness, hue red direction, normal color space, and saturation 0. Since it is empirically known that image quality can be obtained, appropriate image quality correction data for each application attribute based on these rules of thumb is used. It may be stored in the table 18.

  Needless to say, the above-described use attributes and image quality control data are merely examples for explanation.

  FIG. 6 is a diagram illustrating a simplified flowchart of the “image output function” executed by the personal computer 1. In this figure, first, it is determined whether or not an active window to be displayed is designated (step S11). If the active window to be displayed is not specified, it waits until it is specified. If it is specified, the size and usage attribute of the window are acquired (step S12, step S13), and acquired. The window size and usage attributes are output to the projector 8 (step S14), and the image of the window to be displayed is output to the projector 8 (step S15), and then the above steps S11 to S15 are repeatedly executed.

  FIG. 7 is a diagram showing a simplified flowchart of the “image projection function” executed by the projector 8. In this figure, first, it is determined whether or not a window size and a window usage attribute are input from the personal computer 1 (step S21). If it has not been input, it waits until it is input. If it has been input, the scaling ratio of the input window is calculated from the window size and the display size of the projector 8 (step S22). Next, the image quality correction data corresponding to the input window usage attribute is extracted from the image quality correction data table 18 of FIG. 5 (step S23), and the image of the display target window (window display data) is input from the personal computer 1. Wait (step S24).

  When an image (display data) of the display target window is input from the personal computer 1, the display data is scaled by the scaling rate calculated in step S22 (step S25), and then the display data after scaling is converted to After correcting with the image quality correction data extracted in step S23, the process of enlarging and projecting the corrected display data on the screen 10 is repeatedly executed.

As described above, according to the present embodiment, the following effects can be obtained.
(1) Regardless of the display mode of the display device 3 of the personal computer 1, only an image of a specific window (active window W 1) is output to the projector 8, and scaled by the projector 8 and enlarged and projected onto the screen 10. Can do. Therefore, an unnecessary image of the display device 3, for example, a desktop screen or an inactive window W2 can be hidden so that it cannot be seen on the screen 10. For example, the effect of the presentation is enhanced. Can do.

  (2) In addition, the usage attribute of the display target window W1 is sent from the personal computer 1 to the projector 8, and the projector 8 corrects the image quality of the display target window W1 using the image quality correction data corresponding to the usage attribute. Therefore, for example, in the case of a character-based image (for word processor use, etc.), the contrast and brightness can be corrected to make it easier to see, or in the case of a photo (for image viewing use, etc.) This can also be made easier to see by performing corrections such as increasing the image quality. Therefore, appropriate image quality correction can be performed corresponding to each application image for various uses, and the commercial value of the projector 8 can be increased.

  In addition, this invention is not limited to the above embodiment, Of course, various modifications and development examples are included within the scope of the technical idea.

  For example, in the configuration of FIG. 4, the image quality conversion is performed after the scaling process, but it may be reversed. That is, the order of the scaler unit 16 and the image quality conversion unit 19 may be switched.

  In the above embodiment, the system configuration including the projector 8 is taken as an example. However, instead of the projector 8, a system configuration using an external monitor device such as a liquid crystal display, an organic display, a plasma display, or a projector TV may be used. Good.

  In the above embodiment, the “use attribute” for performing image quality correction is defined as an index indicating the use type of each window (for text editing, image viewing, for presentation, etc.) Of these definitions, “use” has no particular meaning. In short, any attribute that can be a keyword when image quality correction is performed by the projector 8 may be used. For example, a file extension, file type information embedded in the file, and the like are treated as equivalent to “use attribute”. May be.

  8-10 is a figure which shows the variation of use attribute acquisition. First, FIG. 8 will be described. In this variation, a desired window (for convenience, the window W1) to be output to the projector 8 is selected from several windows W1 and W2 displayed on the display device 3 of the personal computer 1. Then (step S31), the name of the application of the selected window W1 (the application that created the window W1) is acquired (step S32), and then the acquired application name is used as a use attribute (step S33).

  Also, FIG. 9 will be described. In this variation, when an arbitrary application program (for example, an application program for creating a sentence) is executed on the personal computer 1 (step S34), the name of the executed application program is acquired (step S34). Then, the acquired application name is used as a usage attribute (step S36).

  Further, FIG. 10 will be described. In this variation, when an arbitrary file (for example, a file of an application program for creating a sentence) is opened on the personal computer 1 (step S37), the extension of the opened file is used as a use attribute. (Step S38).

  As described above, in any variation, the usage type (for text editing, image browsing, presentation, etc.) of each window can be output from the personal computer 1 to the projector 8, and the image quality corresponding to the usage type can be output. Correction can be performed.

W1 window (window to display)
1 Personal computer 8 Projector (display control device)
17 Image quality control unit (take-in means, take-out means)
18 Image quality correction data table (holding means)
19 Image quality converter (correction means)
20 Display control unit (display means)
22 Display element (display means)

The present invention relates to a display control apparatus that displays image data to be displayed .

An object of the present invention is to optimize image data to be displayed so that an image can be displayed.

The invention according to claim 1 is a display control apparatus for displaying image data to be displayed, and storing means for storing image quality control information for controlling image quality of an image for each of a plurality of file identification information, and the display Acquisition means for acquiring file identification information for identifying file attributes of target image data, and image quality control information corresponding to the file identification information acquired by the acquisition means is acquired from the storage means, and the acquired image quality The image processing apparatus includes image quality control means for controlling the image quality of the image data to be displayed based on control information, and display control means for displaying the image data controlled by the image quality control means.
The invention according to claim 7 is a display control device for acquiring image data to be displayed from an external device and displaying the image data at a predetermined display size, and acquiring means for acquiring an image size of the image data to be displayed A scaling control unit that compares the image size acquired by the acquisition unit with the display size, and performs a scaling process so that the image data to be displayed is displayed at the predetermined display size, and the scaling control unit And display control means for displaying the image data controlled in step (1).

According to the present invention, it is possible to optimize image data to be displayed and display an image .

W1 window <br/> 1 personal computer 8 projector <br/> 17 image quality control unit 18 the image quality correction data table 19 the image quality converting unit 20 display control unit 22 display element

Claims (6)

Capture means for capturing image data of a display target window and usage attributes of the window;
Holding means for holding image quality correction data for each use attribute;
A take-out means for taking out the image quality correction data corresponding to the use attribute taken in by the take-in means from the holding means;
Correction means for correcting the image data of the display target window captured by the capturing means using the image quality correction data extracted by the extracting means;
A display control apparatus comprising: display means for displaying image data that has been subjected to image quality correction by the correction means. The display target window is a window displayed on a display of a personal computer, the usage attribute is an index indicating a usage type of the window displayed on the display, and the capturing unit includes the personal computer. 2. The display control apparatus according to claim 1, wherein image data of a display target window sent from a computer and a use attribute of the window are fetched. The display control apparatus according to claim 2, wherein the use attribute is a name of an application that has called the window or information for identifying the application. 3. The display control apparatus according to claim 2, wherein the use attribute is an extension of a file storing data to be displayed in the window or information for identifying the extension. A capturing step of capturing image data of a display target window and usage attributes of the window;
Holding step for holding image quality correction data for each use attribute;
An extraction step of taking out image quality correction data corresponding to the use attribute acquired in the acquisition step from the data held in the holding step;
A correction step of correcting the image data of the display target window captured by the capture step using the image quality correction data extracted by the extraction step;
A display step of displaying image data that has been subjected to image quality correction by the correction step. The display target window is a window displayed on a display of a personal computer, the usage attribute is an index indicating a usage type of the window displayed on the display, and the capturing step includes the personal computer 6. The display control method according to claim 5, wherein image data of a display target window sent from a computer and usage attributes of the window are captured.

Images