JP2005227476A - Image display device, image display method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display device capable of displaying a trimming image as largely as possible by magnifying on a display screen and indicating the position, etc., of the trimming image on the entire part image. <P>SOLUTION: A user can arbitrarily assign a trimming region on a display screen 21 by operating the image display device 1. The image display device 1 sets a part of the display screen 21 in the trimming region based on the user's operation and forms a part of the entire part image corresponding to the trimming region as a trimming image. The image display device 1 creates a magnified image by magnifying the trimming image based on the size of the display screen 21. Further, the image display device 1 displays the created magnified image on the entire part of the display screen 21. According thereto, the user is able to easily magnify and display the trimming image allocated to the trimming region which can be freely assigned over the entire part of the display screen. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a technique for displaying an entire image and an enlarged image on one display screen.

  Conventionally, when image trimming is performed, a general method is to display an entire image on a display screen and designate a position to be trimmed on the entire image as a display position with a pointing device or the like. In this method, when the display position is changed, it is necessary to designate the display position on the entire image again with a pointing device or the like. Therefore, it is possible to easily perform fine adjustment of the display position by enlarging the designated area a little more. could not.

  Conventionally, when enlarging an image assigned to an enlargement area set as a part of a display screen, as a method for indicating at which position on the entire image the image existing is enlarged, It is known that an enlarged image is displayed together with the entire image with the position of the enlarged image corresponding to an arbitrary position as the approximate center of the enlarged region (for example, Patent Document 1). At this time, since the confirmation of the position of the enlarged image corresponding to an arbitrary position of the entire image, that is, the approximate center, is intended for the circuit diagram and CAD / CAM, the enlarged area is arranged so that the confirmation can be performed accurately. The assigned image before enlargement and the enlarged image are positioned so as to be linear. Furthermore, in this method, the user can specify at what rate the image assigned to the enlargement area is enlarged, but it is possible to specify at which position on the entire image the enlarged image exists. Since it is indicated by the display position of the image, the size of the enlarged image cannot be specified.

  As described above, in the conventional method, in order to confirm where the enlarged image exists on the entire image, the enlarged image must be displayed together with the entire image. Further, according to this, the position of the enlarged image on the entire image can be known, but in order to display only the enlarged image in a large size, another operation by the user is necessary. In addition, since the pre-enlarged image assigned to the enlarged area and the enlarged image are positioned so as to be linear, the enlarged image cannot be displayed extremely large on the display screen. For this reason, the conventional method has a limit in coexistence of the purpose of displaying the enlarged image as large as possible on the display screen and the purpose of indicating the position of the enlarged image on the entire image. That is, with the conventional method, it is difficult to display a trimmed image that has been trimmed as large as possible on the display screen and to indicate the position of the trimmed image on the entire image.

JP-A-7-141516

  The present invention has been made in view of the above points, and an image display device capable of enlarging and displaying a trimmed image as large as possible on a display screen and indicating the position and the like of the trimmed image on the entire image. The issue is to provide.

  In one aspect of the present invention, an image display device including a display screen, an entire image display unit that displays an entire image on the display screen, and a trimming region setting unit that sets a part of the display screen as a trimming region A magnified image creating means for creating a magnified image by enlarging a trimmed image corresponding to the trimming region, which is a part of the entire image, based on the size of the display screen; and And an enlarged image display means for displaying an enlarged image created by the enlarged image creating means.

  Further, an image processing method according to a similar viewpoint includes an entire image display step for displaying an entire image on a display screen included in an image display device, a trimming region setting step for setting a part of the display screen as a trimming region, and the entire A magnified image creating step of creating a magnified image by enlarging a trimmed image corresponding to the trimming region based on a size of the display screen, and a magnified image creating means on the display screen; An enlarged image display step of displaying an enlarged image created by

  In the image display apparatus or method configured as described above, the image display apparatus is an apparatus including a display screen, and specifically includes a mobile phone with a television, a digital camera, and the like. The user designates a trimming area on the display screen of the image display device. The image display apparatus sets a part of the display screen as a trimming area based on the designation by the user, and sets a part of the entire image corresponding to the trimming area as a trimmed image. That is, a part of the entire image is assigned to the trimming area as a trimmed image. Then, the image display device creates an enlarged image by enlarging the trimmed image based on the size of the display screen. Further, the image display device displays the created enlarged image on the entire display screen. According to this, the trimmed image assigned to the trimming area that can be freely specified by the user can be easily enlarged and displayed on the entire display screen.

  In one aspect of the image display device, the enlarged image creating unit creates an enlarged image by enlarging the trimmed image to the maximum based on the size of the display screen. According to this, the image display device can easily display a trimmed image assigned to a trimming area that can be freely specified by the user, with a maximum size that can be displayed on the display screen. Therefore, for example, when the image display device is a small TV or a mobile phone with a TV, it is possible to freely enlarge an image that is difficult to view by setting a portion that the user wants to pay attention to in the trimming area. You can browse without.

  In another aspect of the display device, the display device further includes instruction information creating means for creating instruction information indicating that an image to be displayed on the display screen is an enlarged image, and the enlarged image display means is provided on the display screen. The instruction information created by the instruction information creating unit is displayed together with the enlarged image created by the enlarged image creating unit. According to this, the image display device creates instruction information which is information indicating that the image displayed on the display screen is not an entire image but an enlarged image. Then, when the enlarged image is displayed on the display screen, the image display device displays instruction information together with the enlarged image. Therefore, the instruction information allows the user to easily recognize that the enlarged image is displayed on the display screen instead of the entire image.

  In another aspect of the image display device, the enlarged image display means may recognize the enlarged image creation means so that at least one of information on the position and size of the trimmed image with respect to the entire image can be recognized on the display screen. The enlarged image created by is displayed. According to this, when displaying an enlarged image on the display screen, the image display apparatus can recognize information on the position and size of the trimmed image that is the source of the enlarged image on the entire image. Therefore, even when the enlarged image is displayed on the entire display screen, the user can recognize the position and size of the trimmed image that is the source of the enlarged image on the entire image.

  In still another aspect of the image display device, the instruction information is a frame displayed so as to surround the enlarged image, and is at least one piece of information regarding the position and size of the trimmed image with respect to the entire image. Further comprising instruction information adjusting means for adjusting the width of the frame, wherein the enlarged image display means includes, on the display screen, the instruction information adjusting means together with the enlarged image created by the enlarged image creating means. Display adjusted instruction information.

  The image display device configured as described above displays a surrounding of the enlarged image based on information on the position and size of the trimmed image, which is the source of the enlarged image displayed on the display screen, on the entire image. Adjust the frame width. Then, the image display device displays a frame whose width is adjusted together with the enlarged image on the display screen. According to this, even when the enlarged image is displayed on the entire display screen, the user can display the position and size of the trimmed image that is the source of the enlarged image on the entire image along with the enlarged image. Can be easily recognized.

  According to another aspect of the present invention, there is provided a program executable by a computer having a display screen, the whole image display means for displaying the whole image on the display screen, and a part of the display screen is set in a trimming area. Trimming area setting means, a magnified image creating means for creating a magnified image by enlarging a trimmed image corresponding to the trimming area, which is a part of the whole image, based on the size of the display screen, and the display screen The computer is caused to function as enlarged image display means for displaying an enlarged image created by the enlarged image creation means.

  By executing the above program by a computer, the above-described image display apparatus and image display method can be realized. In addition, each aspect of the above-described image display device and image display method can be realized in the same manner.

[Image display device]
First, the image display system of the present invention will be described. FIG. 1 is a diagram illustrating a schematic configuration of the image display apparatus 1. The image display device 1 displays a trimmed image as large as possible on the display screen, and can indicate the position of the trimmed image on the entire image.

  As shown in FIG. 1, the image display device 1 includes a trimming start / decision instructing unit 10, a system control unit 11, a range information acquisition unit 12, an adjustment information acquisition unit 13, a display position control unit 16, an image recording unit 17, and an enlargement. An image creation unit 18, an enlarged image recording unit 19, and a display screen 21 are provided. Here, the adjustment information acquisition unit 13 includes a position information acquisition unit 14 and a zoom information acquisition unit 15. Specifically, examples of the image display device 1 include a digital camera having a display screen and a camera-equipped mobile phone as shown in FIG. FIG. 2 is a diagram schematically illustrating the configuration of the image display apparatus 1 using a digital camera as an example. Here, with reference to FIG.1 and FIG.2, the structure of the image display apparatus 1 is demonstrated in detail.

  The trimming start / decision instructing unit 10 transmits to the system control unit 11 an operation signal related to the start or determination of trimming input by the user operating the trimming operation instruction button 24 as shown in FIG. The system control unit 11 displays a range information acquisition unit 12, an adjustment information acquisition unit 13, and a display position control unit 16 so that an image trimmed as requested by the user based on the received operation signal is displayed on the display screen 21. The image recording unit 17, the enlarged image creating unit 18, the enlarged image recording unit 19, and the display screen 21 are controlled.

  The range information acquisition unit 12 is set as a part of the display screen 21 from an operation signal input by the user performing a predetermined operation on the display screen 21 that is a touch panel as shown in FIG. Position information indicating the range of the trimming area 22 is acquired. In other words, although the details will be described later, the user can freely change the position and size of the trimming region 22 by performing a predetermined operation on the display screen.

  The adjustment information acquisition unit 13 enlarges the trimming image assigned to the trimming region 22 based on the position information acquired by the range information acquisition unit from the operation signal input by the user operating the touch panel or the zoom button 23. Acquire adjustment information for adjusting the position and zoom of the enlarged image. The adjustment information is a general term that combines position information acquired by a position information acquisition unit 14 described later and zoom information acquired by the zoom information acquisition unit 15.

  The position information acquisition unit 14 constituting the adjustment information acquisition unit 13 acquires the position information of the enlarged image from the operation signal input by the user performing a predetermined operation on the display screen 21 that is a touch panel. In other words, although the details will be described later, the user can freely change the position of the enlarged image by performing a predetermined operation on the display screen. That is, the position can be easily finely adjusted in a state where an enlarged image obtained by enlarging the trimmed image assigned to the trimming area 22 is displayed on the entire display screen 21.

  A zoom information acquisition unit 15 constituting the adjustment information acquisition unit 13 acquires zoom information of an enlarged image from an operation signal input by a user operating the zoom button 23. For example, when the user operates the zoom button 23 to display the enlarged image displayed on the entire display screen 21 in a further doubled size, the zoom information acquisition unit 15 sets “200%” as zoom information. Get the information. On the other hand, when the user operates the zoom button 23 to display the enlarged image displayed on the entire display screen 21 in half, the zoom information acquisition unit 15 displays information “50%” as zoom information. To get. That is, according to the present invention, not only can the enlarged image be further enlarged, but also reduction can be performed in the same manner. In other words, although the details will be described later, the user can freely set enlargement / reduction of the enlarged image displayed on the entire display screen 21 by operating the zoom button 23. That is, the zoom can be easily finely adjusted in a state where an enlarged image obtained by enlarging the trimmed image assigned to the trimming area 22 is displayed on the entire display screen 21.

  Based on the position information indicating the range of the trimming region 22 acquired by the range information acquiring unit 12, the display position control unit 16 displays the trimming image assigned to the trimming region 22 on the entire display screen 21. Determine the size. That is, by enlarging the trimmed image, the position and size of the enlarged image displayed on the entire display screen 21 are determined. Further, the display position control unit 16 adjusts the position and zoom of the enlarged image based on the adjustment information acquired by the adjustment information acquisition unit 13.

  The image recording unit 17 records an image to be displayed on the display screen 21 of the image display device 1. The image recorded in the image recording unit 17 may be a still image or a moving image. Specifically, image and audio data are recorded after being compressed and encoded.

  The enlarged image creating unit 18 reads out the trimmed image assigned to the trimming region 22 from the image recording unit 17 based on the position information indicating the range of the trimming region 22 acquired by the range information acquiring unit 12. Then, the enlarged image creation unit 18 creates an enlarged image by processing the trimmed image read from the image recording unit 17 based on the position and size determined by the display position control unit 16. Further, the enlarged image creation unit 18 creates a new enlarged image by processing the enlarged image based on the position and zoom adjusted by the display position control unit 16.

  The magnified image recording unit 19 records the magnified image when an instruction to record the magnified image created by the magnified image creating unit 18 is extracted from the operation signal input by the user performing a predetermined operation. . The enlarged image creating unit 18 creates a new enlarged image based on the position and zoom adjusted by the display position control unit 16 when creating an enlarged image based on the position and size determined by the display position control unit 16. When an image having the same position, size, and zoom as the enlarged image to be created is already recorded in the enlarged image recording unit 19 at the time of creation, the image is extracted from the enlarged image recording unit 19. .

  In addition to the above, the image display apparatus 1 including a digital camera or the like can perform various operations for executing an original operation in the digital camera or the like such as a process of recording an image photographed by the photographing lens 20 in the image recording unit 17. A description will be omitted for the sake of convenience regarding parts that are provided with components but are not directly related to the present invention.

[Image display method]
(I) Method of Displaying Enlarged Image on Display Screen Nearly Maximum First, in the image display device 1, the trimmed image assigned to the trimming area 22 set in a part of the display screen 21 is enlarged and automatically An outline of a method for displaying a display as large as possible on the display screen 21 will be described. Note that displaying as large as possible on the display screen 21 in this way is referred to as “substantially maximum”. This is because when the frame described later is set in the display screen, the maximum size of the display screen does not exactly match the size of the image displayed as large as possible on the display screen. That is, it is called “substantially maximum” to include such a case.

  3A and 3B show an example in which a predetermined image is displayed on the display screen 21 provided in the image display device 1 in the trimming mode. The user can switch between the normal mode and the trimming mode by operating the trimming operation instruction button 24 shown in FIG. In the normal mode, the broken line indicating the trimming area 22 is not displayed on the display screen 21. On the other hand, in the trimming mode, a broken line indicating the trimming area 22 is displayed on the display screen 21. The user can view an arbitrary still image or moving image by displaying the image recorded in the image recording unit 17 on the display screen 21.

  By operating the touch panel in the trimming mode, the user can freely change the position of the trimming area 22 indicated by the broken line as shown in FIG. Further, the user can freely change the size of the trimming area 22 indicated by the broken line as shown in FIG. 3B by operating the touch panel in the trimming mode. The trimming image assigned to the trimming area 22 is enlarged when the user performs an operation for determining the range of the trimming area 22, that is, the position and size of the trimming area 22 by the trimming operation instruction button 24, as shown in FIG. As shown in (), it is displayed on the entire display screen 21 as an enlarged image. That is, the fact that the user can freely change the position and size of the trimming area 22 means that an enlarged image to be displayed enlarged on the entire display screen 21 can be set freely.

  When the user wants to adjust the zoom when an enlarged image corresponding to the arbitrarily set trimming area 22 is displayed on the entire display screen 21, the user operates the zoom button 23 to display the image shown in FIG. ), The enlargement / reduction of the enlarged image can be freely adjusted. When the user wants to fine-tune the position when the enlarged image corresponding to the arbitrarily set trimming area 22 is displayed on the entire display screen 21, the user operates the touch panel to display FIG. As shown in A), the position of the enlarged image can be freely finely adjusted. Specifically, FIG. 4B shows a display screen example in which the position of the enlarged image is moved to the left. When the user wants to record the finely adjusted enlarged image for printing, for example, the user operates the trimming operation instruction button 24. As a result, the image display apparatus 1 records an enlarged image as shown in FIG. 4B in the enlarged image recording unit 19. Therefore, the user can extract an enlarged image whose position, size, and zoom are adjusted at an arbitrary timing from the enlarged image recording unit 19 and perform predetermined processing such as printout on the enlarged image.

  In the above display method, as shown in FIG. 4B, information indicating that the image displayed on the display screen 21 is an enlarged image is not displayed, but the present invention is not limited to this. It is not something. That is, when the enlarged image is displayed on the display screen 21 instead of the whole image displayed in the normal mode, the instruction information indicating that may be displayed. Specifically, as shown in FIG. 4C, by displaying a frame 30 surrounding the enlarged image together with the enlarged image, it can be shown that the enlarged image is displayed on the display screen 21. In this case, the instruction information is the frame 30, and the color and design of the frame 30 can be arbitrarily set. Thus, by displaying the frame 30 surrounding the enlarged image together with the enlarged image, the user can easily recognize visually that the enlarged image is displayed instead of the entire image. Further, since the enlarged image is displayed slightly smaller than the display screen 21 by displaying the frame 30, the user intuitively recognizes that the enlarged image is displayed instead of the entire image. Can do.

In the above display method, the range of the trimming area and the position, size, and zoom of the enlarged image are determined and adjusted by the touch panel, the zoom button 23, and the trimming operation instruction button 24. However, the present invention is not limited to this. However, it is possible to use various methods such as using a mouse or a cross key. That is, the present invention does not limit the trimming area range, the position, size, and zoom determination / adjustment method of the enlarged image.
(Ii) Method for displaying an enlarged image substantially at maximum on the display screen and showing general information Next, in the image display device 1, the trimmed image is enlarged and displayed at substantially maximum on the display screen, and the trimming is performed. An outline of a method for indicating an outline of the position and size of an image on the entire image will be described.

  FIG. 5A shows an example in which a predetermined image is displayed on the display screen 21 provided in the image display device 1 in the trimming mode. Note that the determination of the range of the trimming region 22 and the adjustment of the position, size, and zoom of the enlarged image are the same as in the display method described above, and thus description thereof is omitted for convenience.

  The trimmed image assigned to the trimming area 22 is enlarged when the user performs an operation of determining the range of the trimming area 22 by the trimming operation instruction button 24, and as shown in FIG. Displayed on the entire display screen. At this time, a frame 32 surrounding the enlarged image is displayed together with the enlarged image. Here, the frame 32 is instruction information indicating that not the whole image but the enlarged image is displayed on the display screen 21 as described above, but not only that, but also the position and size of the trimming area on the entire display screen. It is also the summary information shown. Specifically, the trimming region 22 on the display screen 21 as shown in FIG. 5A is located slightly upper left from the center. In this case, when the trimming image assigned to the trimming area 22 is enlarged and displayed, as shown in FIG. 5B, the width of the left side and the upper side of the frame 32 of the enlarged image is narrow, and the right side and the lower side The width of is displayed to be wide.

  According to this, for example, when the width of the upper side of the frame 32 is minimum or absent, it can be intuitively understood that the trimmed image is positioned at the upper limit of the entire image. That is, the user can generally recognize the position and size of the trimming region with respect to the entire display screen based on the width of each side of the frame 32 in the horizontal and vertical directions. In other words, the user can generally recognize the position and size of the trimmed image with respect to the entire image based on the width of each side of the frame 32 in the horizontal and vertical directions. Since the enlarged image is an enlarged version of the trimmed image, if the position of the trimmed image on the entire image can be recognized by the width of the frame 32 as described above, the position of the enlarged image and the zoom can be adjusted. It is effective because it is possible to easily grasp how far the enlarged image can be moved.

  The outline information indicated by the width of each side in the left / right / up / down direction of the frame 32 may be information that indicates whether there is an entire image in the left / right / up / down direction of the trimmed image, or whether there is a little or a lot of information. Information that can be understood is also acceptable.

  Here, the relationship between the position and size of the trimmed image with respect to the entire image and the width of each side in the horizontal and vertical directions of the frame 32 will be described in detail with reference to FIGS. 6 and 7. FIG. 6A is an example of a display screen that displays the entire image. FIG. 6B is an example of a display screen that displays an enlarged image obtained by enlarging the trimming image assigned to the trimming area 22 shown in FIG.

  As shown in FIG. 6A, the horizontal width of the trimmed image assigned to the trimming area 22 is TW. Further, regarding the horizontal width, the difference on the left side when comparing the position and size of the entire image and the trimmed image is SL, and the difference on the right side is SR. Further, as shown in FIG. 6B, the horizontal width of the enlarged image is IW. The width of the left side of the frame 32 is FL, and the width of the right side is FR.

  FIG. 7 is a straight line and a curve showing the relationship between the position and size of the trimmed image and the width of the left and right sides of the frame 32 when the vertical axis is FL / FR and the horizontal axis is SL / SR. When the range of the trimming area is determined or when the enlarged image is adjusted, the image display device 1 is based on the acquired range information or adjustment information and a straight line or a curve as shown in FIG. The position and size of the frame 32 are determined. That is, the image display device 1 creates an enlarged image and a frame 32 to be displayed on the display screen 21 based on the range information and a straight line or a curve as shown in FIG.

  First, a description will be given with reference to FIG. When a straight line indicating the relationship between the position and size of the trimmed image and the width of each of the left and right sides of the frame 32 is as shown in FIG. 7A, the position of the trimmed image with respect to the entire image is the left end, and the trimmed image When the entire image does not exist in the left direction, that is, when SL is “0”, the image display device 1 sets FL shown in FIG. 6B to “0”. If the FL value is determined, the FR value can be calculated based on the FL value, the size of the display screen 21 and the size of the enlarged image. Similarly, if the FR value is determined, the FL value can be calculated based on the FR value, the size of the display screen, and the size of the enlarged image.

  When the position of the trimmed image with respect to the entire image is the right end and there is no entire image in the right direction of the trimmed image, that is, when SR is “0”, the image display device 1 sets FR to “0”. To do. On the other hand, when the position of the trimmed image with respect to the entire image is neither the left end nor the right end and the entire image exists in both the left direction and the right direction of the trimmed image, that is, when the values of SL and SR are not “0”, image display The apparatus 1 sets FL and FR to a “constant value f0”.

  According to this, the user determines whether there is an entire image in the left-right direction of the trimmed image depending on whether the width of the FL or FR of the frame 32 is “0” or “a constant value f0”. Intuitive recognition.

  Next, description will be made with reference to FIG. When the straight line indicating the relationship between the position and size of the trimmed image and the width of each of the left and right sides of the frame 32 is as shown in FIG. 7B, the position of the trimmed image with respect to the entire image is the left end, When the entire image does not exist in the left direction, that is, when SL is “0”, the image display device 1 sets FL shown in FIG. 6B to “0”.

  On the other hand, when the position of the trimmed image with respect to the entire image is not the left end but is considerably leftward, and the entire image exists in the left direction of the trimmed image, the image display device 1 sets FL to “a predetermined first value f1”. As a result, the FR value is determined. Further, when the position of the trimmed image with respect to the entire image is near the center of the trimmed image with respect to the image, the image display device 1 sets FL to a “predetermined second value f2”, and determines the FR value accordingly. To do. In addition, when the position of the trimmed image with respect to the entire image is not the right end but is considerably rightward and the entire image exists in the right direction of the trimmed image, the image display device 1 sets FL to “predetermined third value f3”. As a result, the FR value is determined.

  On the other hand, when the trimming position with respect to the entire image is the right end and there is no entire image in the right direction of the trimmed image, that is, when SR is “0”, the image display device 1 sets FR to “0”. .

  According to this, the user can intuitively recognize whether there is an entire image in the left-right direction of the trimmed image, depending on whether the width of the FL or FR of the frame 32 is “0”. . In addition, if the FL of the frame 32 is “predetermined first value f1”, the trimmed image is located far to the left of the whole image, and if the FL is “predetermined second value f2”, the user trims the trimmed image. If the image is located near the center of the whole image and “predetermined third value f3”, it can be recognized that the trimmed image is located to the right of the whole image. That is, the user can recognize not only whether there is an entire image in the left-right direction of the trimmed image but also a stepped position by the frame 32. In other words, according to the straight line as shown in FIG. 7B, the relationship between the position and size of the trimmed image and the widths of the left and right sides of the frame 32 can be made nonlinear in a stepwise manner.

  Finally, description will be made with reference to FIG. When the curve indicating the relationship between the position and size of the trimmed image and the widths of the left and right sides of the frame 32 is as shown in FIG. 7C, the position of the trimmed image with respect to the entire image is at the left end, and When the entire image does not exist in the left direction, that is, when SL is “0”, the image display device 1 sets FL shown in FIG. 6B to “0”.

  On the other hand, when the position of the trimmed image with respect to the entire image is not at the left end, the image display apparatus 1 refers to the curve shown in FIG. 7C based on the width of SL shown in FIG. Increase the value. Then, the image display device 1 sets FL to a “constant value f4” when the width of the SL becomes a certain value or more. That is, even if the width of SL becomes larger than a certain value, the value of FL does not increase in proportion thereto. The object of the present invention is to enlarge the image assigned to the trimming area and display it almost at the maximum. Therefore, as shown in FIG. 7C, the position and size of the trimmed image and the left and right sides of the frame 32 are displayed. The relationship with the width of is not directly proportional.

  On the other hand, when the trimming position with respect to the entire image is the right end and there is no entire image in the right direction of the trimmed image, that is, when SR is “0”, the image display device 1 sets FR to “0”. .

  According to this, the user can intuitively recognize whether there is an entire image in the left-right direction of the trimmed image, depending on whether the width of the FL or FR of the frame 32 is “0”. . Further, the user can relatively recognize where the trimmed image is located in the entire image by the size of the FL until FL reaches “a constant value f4”. it can. On the other hand, if FL reaches “a constant value f4”, it can be recognized that the trimmed image is located far to the left. That is, the user can recognize not only whether there is an entire image in the left-right direction of the trimmed image but also a rough position by the frame 32. In other words, according to the curve shown in FIG. 7C, the relationship between the position and size of the trimmed image and the widths of the left and right sides of the frame 32 can be made non-linear.

  As described above, the present invention has one feature in that the relationship between the position and size of the trimmed image and the width of the left and right sides of the frame 32 is non-linear. If the width of the left and right sides of the frame 32 is changed linearly with respect to the position and size of the trimmed image in the entire image, the area occupied by the frame on the display screen increases, and the trimmed image is displayed almost at the maximum. Because it becomes impossible.

  The relationship between the position and size of the trimmed image with respect to the entire image and the width of each side in the vertical direction of the frame 32 is the same as the relationship between the width of each side in the horizontal direction described above. Omitted.

[Image display processing]
Next, an image display process executed by the image display device 1 will be described. FIG. 8 is a flowchart of the image display process.

  The user first determines whether to perform trimming by operating the trimming operation instruction button 24 shown in FIG. The image display device 1 acquires an operation signal input by the user, and determines whether or not the user has instructed trimming from the operation signal (step S1). When it is determined that the trimming instruction has not been given (step S1; No), the image display device 1 displays the entire image in the normal mode (step S), and the image display process is completed. On the other hand, when it is determined that an instruction to perform trimming is given (step S1; Yes), the image display device 1 switches the display screen so as to be in a trimming mode as shown in FIG. S3).

  When specifying the range of the trimming area 22 in the trimming mode, the user changes the position and size of the trimming area 22 by operating the touch panel. On the other hand, when the range of the trimming area 22 is not designated, for example, when an enlarged image is already displayed on the display screen 21, the position and size of the trimming area 22 are not changed. The image display device 1 acquires an operation signal input by the user operating the touch panel, and determines whether or not there is a range specification of the trimming region 22 from the operation signal (step S4).

  When it is determined that the range of the trimming area 22 has not been designated (step S4; No), the image display device 1 proceeds to step S7. On the other hand, if it is determined that the range of the trimming region 22 has been designated (step S4; Yes), the image display device 1 acquires range information indicating the range of the designated trimming region from the operation signal. Then, the image display device 1 reads the trimmed image assigned to the trimming region 22 based on the acquired range information, and determines the position and size of the enlarged image and the frame when the trimmed image is enlarged (step S5). ). Further, the image display apparatus 1 creates an enlarged image and a frame by enlarging the read trimmed image based on the determined enlarged image and the position and size of the frame. Then, as shown in FIG. 5B, the image display device 1 displays the created enlarged image and frame on the entire display screen 21 (step S6).

  As shown in FIG. 5B, when adjusting the enlarged image displayed on the entire display screen 21, the user adjusts the position and zoom of the enlarged image by operating the touch panel and the zoom button 23. . The image display device 1 acquires an operation signal input by the user operating the touch panel or the zoom button 23, and determines whether or not there is an adjustment of the enlarged image from the operation signal (step S7). When it determines with there being no adjustment of an enlarged image (step S7; No), the image display apparatus 1 progresses to step S13. On the other hand, when it is determined that there is an adjustment of the enlarged image (step S7; Yes), the image display device 1 acquires position information of the enlarged image from the operation signal input by the user operating the touch panel (step S9). ). Then, the image display device 1 determines the position and size of the new enlarged image and the frame based on the acquired position information (Step S10).

  Further, the image display device 1 acquires zoom information of the enlarged image from the operation signal input by the user operating the zoom button 23 (step S11). Then, the image display device 1 creates a new enlarged image and frame based on the position and size of the enlarged image and frame determined in step S10 and the zoom information acquired in step S11, and displays the entire display screen 21. Display (step S12).

  The user performs a predetermined operation on the image display device 1 when recording the adjusted enlarged image in the enlarged image recording unit. The image display apparatus 1 determines whether or not there is an instruction to record an enlarged image from an operation signal input by a user performing a predetermined operation (step S13). When there is an instruction to record the enlarged image, the image display device 1 records the currently displayed enlarged image in the enlarged image recording unit (step S14), and repeats the processes of steps S1 to S13. As described above, the enlarged image recorded in the enlarged image recording unit can be arbitrarily read by the user, and processing such as printout can be performed on the enlarged image. On the other hand, if there is no instruction to record the enlarged image, the processes in steps S1 to S13 are repeated.

  In the above display method, a still image or a moving image is recorded in advance in the image recording unit 17 shown in FIG. 1, but the present invention is not limited to this. For example, the image display device 1 Is a small television or mobile phone, the image displayed on the display screen 21 may be received instead of being recorded in advance.

  According to the present invention, the trimmed image can be enlarged and displayed on the display screen 21 at the maximum, and the position of the trimmed image on the entire image can be shown. That is, the trimmed image assigned to the trimming area 22 where the user can freely set the position and size can be easily displayed on the entire display screen 21. Even when an enlarged image is displayed on the entire display screen 21, whether or not there is an entire image in the vertical and horizontal directions of the trimmed image specified by the user based on instruction information such as a frame is displayed. It is possible to easily recognize the position of the entire image.

  Specifically, when the image display device 1 is a small television or a cellular phone with a small display screen 21, the user sets the trimming area 22 in a part of the entire image, and By arbitrarily setting the position and zoom of the trimmed image assigned to the trimming area, it is possible to freely enlarge and easily browse images that are difficult to view. Further, when the image display apparatus 1 is a digital camera and an image to be printed is adjusted, even if the enlarged image is displayed on the entire display screen 21, the entire display can be easily made by instruction information such as a frame. Since the position and size of the trimmed image with respect to the image can be recognized, it is possible to prevent unnecessary stress such as changing the position of the enlarged image although it cannot be moved. That is, it is possible to improve the user interface when determining and adjusting the enlarged image.

It is a figure which shows schematic structure of the image display apparatus of this invention. It is a figure which shows the structure of an image display apparatus typically. It is an example of a display screen in a trimming mode in which an entire image is displayed. It is an example of a display screen in a trimming mode in which an enlarged image is displayed. It is an example of a display screen in the case of showing summary information with an enlarged image. It is an example of a display screen which shows the relationship between an enlarged image and the width | variety of a frame. It is a figure which shows the straight line which shows the relationship between the position of a trimming image, and the width | variety of each side of a frame. It is a flowchart of the image display process in this embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Image display apparatus, 10 Trimming start / decision instruction part, 11 System control part, 12 Range information acquisition part, 13 Adjustment information acquisition part, 14 Position information acquisition part, 15 Zoom information acquisition part, 16 Display position control part, 17 Image Recording unit, 18 Enlarged image creation unit, 19 Enlarged image recording unit, 21 Display screen

Claims (7)

An image display device comprising a display screen,
Whole image display means for displaying a whole image on the display screen;
Trimming area setting means for setting a part of the display screen as a trimming area;
A magnified image creating means for creating a magnified image by enlarging a trimmed image corresponding to the trimming region, which is a part of the entire image, based on the size of the display screen;
An image display apparatus comprising: an enlarged image display unit that displays an enlarged image created by the enlarged image creation unit on the display screen.   The image display device according to claim 1, wherein the enlarged image creating unit creates an enlarged image by maximizing the trimmed image based on a size of the display screen. Further comprising instruction information creating means for creating instruction information indicating that an image to be displayed on the display screen is an enlarged image;
The said enlarged image display means displays the instruction information created by the said instruction information creation means on the said display screen with the enlarged image created by the said enlarged image creation means. Image display device.   The enlarged image display means displays on the display screen an enlarged image created by the enlarged image creation means so that at least one of information regarding the position and size of the trimmed image with respect to the entire image can be recognized. The image display device according to any one of claims 1 to 3. The instruction information is a frame displayed so as to surround the enlarged image,
Further comprising instruction information adjusting means for adjusting the width of the frame based on at least one of information on the position and size of the trimmed image with respect to the whole image
5. The image display according to claim 4, wherein the enlarged image display means displays instruction information adjusted by the instruction information adjusting means together with the enlarged image created by the enlarged image creating means on the display screen. apparatus. An entire image display step for displaying an entire image on a display screen provided in the image display device;
A trimming area setting step for setting a part of the display screen as a trimming area;
A magnified image creating step for creating a magnified image by enlarging a trimmed image corresponding to the trimming region based on the size of the display screen, which is a part of the entire image;
And a magnified image display step of displaying a magnified image created by the magnified image creating means on the display screen. A program executable by a computer having a display screen,
Whole image display means for displaying a whole image on the display screen;
Trimming area setting means for setting a part of the display screen as a trimming area,
Enlarged image creation means for creating an enlarged image by enlarging a trimmed image corresponding to the trimming area, which is a part of the entire image, based on the size of the display screen;
A program for causing the computer to function as enlarged image display means for displaying an enlarged image created by the enlarged image creation means on the display screen.

Images