JP4780208B2 - Portable information terminal and image display control method for portable information terminal - Google Patents

Description

  The present invention can enlarge and reduce a desired part of an image by providing a touch panel on the display unit, and can perform operations that increase the number of procedures when switching editing operations such as enlargement, reduction, and scrolling. The present invention relates to an image display control method and an image display control apparatus capable of performing comfortable image editing that do not require a mobile phone, and a portable information terminal including the same.

  In conventional portable information terminals, especially mobile phones that are becoming more popular, all operations for enlarging, reducing, and scrolling various images such as download images and images taken with cameras are performed by key operations.・ Reduction and scrolling were independent operations. Therefore, for example, when it is desired to enlarge an image around a predetermined point of the image, the image is first enlarged and then scrolled so that the point to be displayed becomes the center position of the image (or the point to be displayed is the image). Two steps of different operations are required, such as enlarging after scrolling to the center position. The same applies to the case of reduction. As for screen scrolling, a plurality of key operations are required before reaching a predetermined point. As described above, in such an operation mode, there is a problem that image editing cannot be performed smoothly.

  As a means for solving such a problem, Japanese Patent Application Laid-Open No. 2004-228620 introduces a method in which an LCD, which is a display unit, has a function as a touch panel and operates enlargement and scrolling simultaneously. According to this, by setting the magnification of the image in advance and touching the point to be displayed on the touch panel, the image can be enlarged at the designated magnification with the point as the center.

JP 2003-233368 A (page 3-6, FIG. 5-6)

  However, in the above means, when the set magnification is not appropriate, it is necessary to reset the magnification and then perform the operation with the touch panel again or perform the magnification correction with the zoom lever. Further, in the case where it is desired to delicately scroll the screen whose magnification has been changed by the touch panel operation, it is necessary to scroll the screen center position by the touch panel operation after resetting the magnification to 1. As described above, there may be cases where different operations such as an enlargement operation and a magnification setting operation are required, and the sequence of work is impaired, so that the convenience is not necessarily increased.

  Accordingly, an object of the present invention is to provide a touch panel on the LCD unit so that a desired part of an image can be enlarged and reduced, and various operations such as keys and levers can be performed when switching between enlargement / reduction and scrolling. It is an object to provide an image display control method, an image display control device, and a portable information terminal equipped with the image display control method that can perform comfortable image editing only by panel touch.

An image display control method according to the present invention includes a screen display unit having a display function and a position coordinate input function, and an image memory for storing image data, and an image displayed on the screen display unit based on the image data. An image display control method of a portable information terminal that executes a plurality of different image editing operations, and the number of input operations input by an arbitrary number of short press operations at an arbitrary position of a screen display unit displaying an image Based on the first detection step of designating one of the plurality of image editing operations and detecting the position coordinates of the screen display unit based on the position of the screen display unit of the input operation, A second detection step for designating a position in the corresponding image data, an image data editing operation corresponding to the designated image editing operation are executed on the image data, and the designated position in the image data is displayed on the screen display unit. In correspondence with the heart position, based on image data obtained by executing the image data editing operation, and a display control step of displaying the image on the screen display unit,
A plurality of different image editing operations include an enlarged display for enlarging a display image displayed when an image data editing operation corresponding to the designated image editing operation is executed, and an image corresponding to the designated image editing operation. Including a reduced display for reducing the display image displayed at the time when the data editing operation is performed,
In the display control step, if the specified image editing operation is a reduced display, whether the display image displayed at the time when the image data editing operation corresponding to the specified image editing operation is executed is the initial size If the display image is twice the initial size, the initial size image is displayed on the screen display unit based on the image data. If the display image is larger than the initial size, The position coordinate of the screen display unit is detected based on the position of the screen display unit for input operation .

  The display control step associates the designated position in the image data with the center position of the screen display unit based on the image data that has been subjected to the image data editing operation corresponding to the designated image editing operation. Is displayed, it is determined whether or not a blank portion outside the range of the image data is displayed. If it is determined that a blank portion outside the range of the image data is displayed, it is outside the range of the image data. The designated position of the image data is corrected so that the blank portion is not displayed, and the image is displayed on the screen display unit based on the image data on which the image data editing operation corresponding to the designated image editing operation is executed.

  The enlargement ratio of the enlarged display or the reduction ratio of the reduced display is set in advance before the execution of the image data editing operation corresponding to the designated image editing operation.

The portable information terminal of the present invention has a screen display unit having a display function and a position coordinate input function, and an image memory for storing image data, and the images displayed on the screen display unit are different based on the image data. A portable information terminal that executes a plurality of image editing operations, and is based on the number of input operations that are input by an arbitrary number of short press operations at an arbitrary position of a screen display unit that displays an image. Image operation information detection means for designating one of the image editing operations and the position coordinates of the image display unit based on the position of the screen display unit of the input operation, and the position in the image data corresponding to the detected position coordinates Image position information detecting means for designating image data and image data editing operation corresponding to the designated image editing operation are executed on the image data, and the designated position in the image data is made to correspond to the center position of the image display unit. , Based on the image data obtained by executing the image data editing operation, and a display control means for displaying an image on the image display unit,
A plurality of different image editing operations include an enlarged display for enlarging a display image displayed when an image data editing operation corresponding to the designated image editing operation is executed, and an image corresponding to the designated image editing operation. It is a reduced display that reduces the display image displayed at the time when the data editing operation is executed,
The display control means is a case where the designated image editing operation is a reduced display, and the display image displayed at the time when the image data editing operation corresponding to the designated image editing operation is executed has an initial size. If it is twice, an image of the initial size is displayed on the screen display unit based on the image data. If the display image is larger than twice the initial size, the screen is displayed based on the position of the screen display unit for input operation. The position coordinates of the display unit are detected .

  The display control means associates the designated position in the image data with the center position of the screen display unit based on the image data that has been subjected to the image data editing operation corresponding to the designated image editing operation. When it is determined that a blank area outside the range of the image data is displayed, the specified position of the image data is corrected so that the blank area outside the range of the image data is not displayed. An image is displayed on the screen display unit based on the image data that has been subjected to the image data editing operation corresponding to the image editing operation that has been performed.

  The enlargement ratio of the enlarged display or the reduction ratio of the reduced display is set in advance before the execution of the image data editing operation corresponding to the designated image editing operation.

  According to the image display control method, the image display control apparatus, and the portable information terminal including the image display control method according to the present invention, only two designations are given to the position coordinate input unit as the image display form on the display screen including the position coordinate input unit. Can be controlled. Since an extra operation is not required with few steps, even a user who is not good at operating an electronic device can easily operate an image, and can easily swallow the operation procedure.

It is a block diagram of the foldable mobile phone of the present invention. It is an external view of the foldable mobile phone of the present invention. It is a figure which shows the example of an enlarged display by the image display control method of this invention. It is a figure which shows the example of a reduced display by the image display control method of this invention. It is a figure which shows the example of a scroll display by the image display control method of this invention. It is a figure which shows the example of a display automatic correction | amendment in the enlarged display by the image display control method of this invention. It is a figure which shows the example of a display automatic correction in the reduction display by the image display control method of this invention. It is a flowchart which shows the whole process in the image display control method of this invention. It is a flowchart which shows the display expansion process in the image display control method of this invention. It is a flowchart which shows the display reduction process in the image display control method of this invention. It is a flowchart which shows the display scroll process in the image display control method of this invention.

  Embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a circuit for realizing the present invention, and FIG. 2 is an external view when the present invention is realized in a foldable mobile phone. 3 to 7 show examples of LCD display when the image editing work in this embodiment is performed. The configuration of the present embodiment will be described below with reference to the drawings.

  First, the cellular phone according to the present embodiment includes a CPU 1, a radio unit 2, an antenna 3, a memory unit 4, a camera 5, an LCD 6, a touch panel 7, and a key operation unit 8. Use is also possible.

  A series of controls such as shooting and storage of the camera is performed by the CPU 1, and image data captured from the camera 5 is displayed on the LCD 6 after image processing by the CPU 1 is performed. At this time, the LCD 6 serves as a viewfinder. The image captured here is stored in the memory unit 4.

The wireless unit 2 performs transmission / reception processing of wireless data such as call voice and mail via the antenna 3, and wireless data reception processing when downloading a melody or an image.
The downloaded melody and image data are stored in the memory unit 4 through processing by the CPU 1.

  The memory unit 4 stores various programs for operating the cellular phone, ID information, and information unique to the cellular phone such as a telephone number in addition to the download data and the camera-captured image, and can be arbitrarily written and read. It shall be possible.

  The LCD 6 displays various information and images necessary for operating the mobile phone, in addition to the use as a finder described above.

  In addition, a touch panel 7 is disposed on the front surface of the LCD 6, and editing operations such as enlargement / reduction / scrolling when browsing downloaded images and camera-captured images can be performed. The operation method corresponding to each editing may be arbitrarily set, but in this embodiment, for example, the enlargement operation is set to short press once, the reduction operation is set to short press twice, and the scroll operation is set to slide in an arbitrary direction. To do. Although the enlargement ratio and reduction ratio can be arbitrarily set, in this embodiment, the enlargement ratio is set to 2 times and the reduction ratio is set to 1/2 times.

  First, when an operation is performed with the touch panel 7 in a state where any image is displayed on the LCD 6, the CPU 1 determines an operation method (enlargement, reduction, or scrolling). Here, when the operation content is enlargement or reduction, the touched point is set as the image center position as shown in FIGS. 3 and 4, and the image size is edited at the designated enlargement or reduction rate. It is displayed on the LCD 6. If the operation content is scroll, the image displayed on the LCD 6 is scrolled by the amount of sliding on the touch panel 7 as shown in FIGS.

  The CPU 1 also determines whether or not a portion outside the image range is displayed (ie, the screen protrudes) when the designated image editing is performed. When a portion outside the image range is displayed, as shown in FIGS. 6 and 7, the image center position is corrected so that the edited image falls within the image range. Although not specifically shown, the same processing is performed for scrolling. In this embodiment, the LCD 6 and the touch panel 7 are configured separately, but the LCD 6 may have the function of the touch panel 7. Further, basic operations on the mobile phone other than image browsing are mainly performed by the key operation unit 8, but the touch panel 7 can be substituted for the key operation unit 8.

  Next, the operation of this embodiment will be described with reference to the drawings. FIG. 8 shows a rough flow when an image is edited by operating the touch panel 7, and a detailed flow regarding enlargement / reduction / scrolling is separately shown in FIGS. 9 to 11.

  First, referring to FIG. 8, the memory unit 4 stores image data of an initial size (unedited state). The CPU 1 reads out the stored image data of the initial size and displays the image of the initial size on the LCD 6. In this state (S11), the CPU 1 detects whether or not there has been an operation by pressing the touch panel 7 (S12). If the CPU 1 detects an operation by pressing the touch panel 7 in S12, the CPU 1 determines what operation of the touch panel 7 has been performed (S13). If the operation of the touch panel 7 is a single short press, an enlarged image display process is executed (S14). If it is short-pressed twice, image reduction display processing is executed (S15). If it is a slide, scroll display processing is executed (S16). After completion of the processes of S14 to S16, if the image display is completed in S17, the image editing process is terminated (END), and if not completed, the process returns to S12 again. On the other hand, if the CPU 1 does not detect an operation by pressing the touch panel 7 in S12, the process proceeds to S17. In S17, if the image display is to be ended, the image editing process is ended (END). If not, the process returns to S12 again.

  Next, each process of enlarging / reducing / scrolling will be described in detail with reference to FIGS. First, the display enlargement process will be described. Referring to FIGS. 8, 9, and 3, in S <b> 13, when CPU 1 detects that the touch panel operation is short-pressed once (S <b> 14), it detects the coordinates of the pressed point on touch panel 7 and detects it. The image center position at the time of enlargement is calculated from the coordinates obtained (S21). From the calculated image center position and enlargement ratio, it is determined whether a blank portion outside the image range is displayed during enlargement display (whether the image does not protrude) (S22). If it is determined in S23 that a blank part outside the image range is displayed, the image center position is corrected so that a blank part outside the image range is not displayed (S24), and the enlarged image is displayed at the corrected image center position (S24). S25). If it is determined in S23 that a blank portion outside the image range is not displayed, the image is enlarged and displayed at the image center position calculated in S21 (S26).

  Here, when the pixel sizes of the image memory and the LCD are substantially the same, the enlarged display of the image (S26) is performed as follows as an example. From the calculated image center position and the double enlargement ratio, the CPU 1 converts the image data of the initial size 1/2 in the vertical and horizontal directions around the image center position of the image memory stored in the memory unit 4 in the vertical and horizontal directions. Both are sequentially read out and written to every other pixel of the LCD 6 to display a × 2 image (from (A) to (B) in FIG. 3). When every other pixel is written on the LCD 6 and a x2 image is displayed, the pixels that have not been written are displayed with interpolation, thereby ensuring the smoothness of the image.

  Further, whether or not a blank area outside the image range is displayed during enlargement display (whether the image does not protrude) is determined by whether or not the area of the image memory is exceeded when reading the initial size image data. be able to.

  When the touch panel operation is performed once with a short press again, the CPU 1 converts the image data of the initial size of 1/4 in the vertical and horizontal directions around the image center position of the image memory stored in the memory unit 4 in the vertical and horizontal directions. Both are sequentially read out and written in every third pixel of the LCD 6 to display a x4 image (from (B) to (C) in FIG. 3).

  Next, the display reduction process will be described. Referring to FIGS. 8, 10, and 4, when CPU 1 detects that the touch panel operation is a short press twice in S 13 (S 15), CPU 1 determines whether or not the current image size is the initial size. (S31). If it is the initial size in S31, no particular processing is performed. Conversely, if it is not the initial size, it is determined whether the image size is double (S32). In S32, when the image size is double, display is performed with the initial size (S39), and when the image size is larger than double, the coordinates of the pressed point on the touch panel 7 are detected and detected. The image center position at the time of reduction is calculated from the coordinates thus obtained (S33). From the calculated image center position and reduction ratio, it is determined whether or not a blank portion outside the image range is displayed during reduction display (whether the image does not protrude) (S34). If it is determined in S35 that a blank portion outside the image range is displayed, the image center position is corrected so that a blank portion outside the image range is not displayed (S36), and the reduced image center position is displayed (S36). S37) (from (A) to (B) of FIG. 7). If it is determined in S35 that a blank portion outside the image range is not displayed, the image is reduced and displayed at the image center position calculated in S33 (S38).

  Here, when the display image size is x4, the reduced image display (S38) is performed as follows as an example. From the calculated image center position and reduction ratio, the CPU 1 sequentially reads out image data having an initial size of 1/2 in the vertical and horizontal directions centering on the image center position of the image memory stored in the memory unit 4 in both the vertical and horizontal directions. Then, every other pixel in the LCD 6 is written to display a x2 image (from (A) to (B) in FIG. 4).

  Whether or not a blank portion outside the image range is displayed during reduced display (whether the image does not protrude) is determined by whether or not the area of the image memory is exceeded when reading out the initial size image data. be able to.

  When the touch panel operation is performed twice with a short press again, the CPU 1 reads out the image data of the initial size stored in the memory unit 4 pixel by pixel from the center position of the image without any gaps. A x1 image is displayed (from (B) to (C) in FIG. 4).

  Next, display scroll processing will be described. Referring to FIGS. 8, 11, and 5, when CPU 1 detects that the touch panel operation is a slide in S 13 (S 16), CPU 1 determines whether or not the current image size is the initial size (S 41). ). If it is the initial size in S41, no particular processing is performed. Conversely, if it is not the initial size, for example, if it is an enlarged size of x2, the start point and end point when sliding on the touch panel 7 are set. The coordinates are detected, and the scroll amount of the image is calculated (S42). When the image is scrolled with the calculated scroll amount, it is determined whether or not the image range is outside the image range (S43). The display is scrolled within the range (S45). If it is determined in S44 that the scrolling is within the image range, the display is scrolled by the designated scroll amount (S46).

  The display after scrolling (S46) in the case of × 2 enlarged size is performed as follows, for example. The CPU 1 calculates the scroll amount of the image by detecting the coordinates of the start point and the end point when sliding, and calculates the end point coordinates on the image coordinates of the initial size from the start point coordinates. Data of a pixel range of ½ of the initial size centering on the end point coordinates is sequentially read in both the vertical and horizontal directions, and written to every other pixel of the LCD 6 to display a × 2 scrolled image (FIG. 5). (A) to (B)).

  Whether or not a blank portion outside the image range is displayed during scroll display (whether the image does not protrude) is determined based on whether or not the area of the image memory is exceeded when reading out the initial size image data. be able to.

  As described above, according to the mobile phone of the present invention, operations such as image enlargement / reduction and scrolling can be performed by the touch panel provided in the LCD unit. This makes it possible to enlarge or reduce the image centered on that part simply by touching a predetermined part of the image, and it is possible to scroll the display while keeping the magnification by sliding while touching the touch panel. Therefore, a plurality of different operations can be performed simultaneously, and the desired image can be edited very easily. In addition, since the editing content is set according to the operation method of the touch panel, no extra operation is required when switching between enlargement / reduction and scroll editing. In addition, when a blank area outside the image range is displayed due to image editing, there is a function that automatically corrects the blank area outside the image range to be displayed. There is also an effect that troublesomeness is eliminated.

  As a second embodiment of the present invention, although not described in detail, the operation method of the touch panel is expanded by sliding upward, reduced by sliding downward, and scrolling around that portion by short pressing. It is also possible to make it.

  In this embodiment, since the magnification changes according to the amount of sliding up and down, it is advantageous when performing delicate size adjustment. That is, the initial size image data stored in the memory unit 4 is not only read in order from the constituent pixels and displayed on the LCD every other pixel (× 2) or every third pixel (× 4), By displaying every second (× 3) or every third (× 5), the display size can be changed at a continuous magnification.

  Here, the enlargement / reduction is performed by sliding in the vertical direction, but a similar function may be provided by sliding in the horizontal direction.

  In the description of the above two embodiments, the description has been made assuming that the number of pixels of the image pickup device of the camera, the memory for storing the image, and the LCD of the display is approximately the same. By making the number of pixels of the image memory larger than the number of pixels of the display LCD, the display image can be reduced from the initial size, the image quality at the time of enlargement can be improved, and the scale of the display image can be set more precisely. can do.

  In the above-described embodiments, the case where an LCD is used for the display unit has been described. However, the display panel is not limited to this, and includes a current light emitting EL (electroluminescence) or an electroluminescent EL. The present invention is effective even when all display panels of the pixel array type are used.

  In the above-described embodiment, the case where the display unit is provided with a touch panel to perform image display control has been described. However, what is required is that a display function and a position coordinate input function are provided together. The position coordinate input function is implemented by many physical principles and is not limited to a touch panel.

1 CPU
2 Radio unit 3 Antenna 4 Memory unit 5 Camera 6 LCD
7 Touch panel 8 Key operation section

Claims (6)

A screen display unit having a display function and a position coordinate input function; and an image memory for storing image data; and a plurality of image editing operations for different images displayed on the screen display unit based on the image data. In the image display control method of the portable information terminal to be executed,
One of the plurality of image editing operations is designated based on the number of input operations input at an arbitrary position of the screen display unit displaying the image by an arbitrary number of short press operations. A first detection step;
A second detection step of detecting a position coordinate of the screen display unit based on the position of the screen display unit of the input operation and designating a position in the image data corresponding to the detected position coordinate;
The image data editing operation corresponding to the specified image editing operation is executed on the image data, the specified position in the image data is made to correspond to the center position of the screen display unit, and the image data editing operation is performed. A display control step of displaying an image on the screen display unit based on the executed image data ,
The different image editing operations include:
An enlarged display for enlarging a display image displayed when the image data editing operation corresponding to the designated image editing operation is executed;
A reduced display for reducing the display image displayed when the image data editing operation corresponding to the designated image editing operation is executed,
The display control step includes:
When the designated image editing operation is the reduced display,
Determining whether or not the display image displayed at the time when the image data editing operation corresponding to the designated image editing operation is performed is an initial size;
When the display image is twice the initial size, an image of the initial size is displayed on the screen display unit based on the image data,
When the display image is larger than twice the initial size, the position coordinate of the screen display unit is detected based on the position of the screen display unit of the input operation. Method. The display control step includes:
Based on the image data on which the image data editing operation corresponding to the designated image editing operation has been executed, the screen display is performed by associating the designated position in the image data with the center position of the screen display unit. Determining whether or not a blank portion outside the range of the image data is displayed when displaying an image on the part,
When it is determined that the blank portion outside the range of the image data is displayed, the designated position of the image data is corrected so that the blank portion outside the range of the image data is not displayed. The image display of the portable information terminal according to claim 1, wherein an image is displayed on the screen display unit based on the image data on which the image data editing operation corresponding to the designated image editing operation is executed. Control method. The enlargement ratio of the enlarged display or the reduction ratio of the reduced display is set in advance before execution of the image data editing operation corresponding to the designated image editing operation.
The image display control method of the portable information terminal according to claim 1 . A screen display unit having a display function and a position coordinate input function; and an image memory for storing image data; and a plurality of image editing operations for different images displayed on the screen display unit based on the image data. In the mobile information terminal to execute,
One of the plurality of image editing operations is designated based on the number of input operations input at an arbitrary position of the screen display unit displaying the image by an arbitrary number of short press operations. Image manipulation information detection means;
Image position information detecting means for detecting a position coordinate of the image display unit based on the position of the screen display unit of the input operation and designating a position in the image data corresponding to the detected position coordinate;
The image data editing operation corresponding to the specified image editing operation is executed on the image data, the specified position in the image data is made to correspond to the center position of the image display unit, and the image data editing operation is performed. Display control means for displaying an image on the image display unit based on the executed image data ,
The different image editing operations include:
An enlarged display for enlarging a display image displayed when the image data editing operation corresponding to the designated image editing operation is executed;
A reduced display for reducing the display image displayed when the image data editing operation corresponding to the designated image editing operation is performed;
The display control means is a case where the designated image editing operation is the reduced display,
When the display image displayed at the time when the image data editing operation corresponding to the designated image editing operation is executed is twice the initial size, the screen display unit is based on the image data. Display the initial size image,
When the display image is larger than twice the initial size, the portable information terminal detects the position coordinates of the screen display unit based on the position of the screen display unit of the input operation . The display control means sets the specified position in the image data to the center position of the screen display unit based on the image data on which the image data editing operation corresponding to the specified image editing operation is executed. When it is determined that a blank portion outside the range of the image data is displayed when displaying the image on the screen display unit in correspondence, the blank portion outside the range of the image data is not displayed. Correcting the designated position of the image data, and displaying the image on the screen display unit based on the image data on which the image data editing operation corresponding to the designated image editing operation is executed. The portable information terminal according to claim 4 . The enlargement ratio of the enlarged display or the reduction ratio of the reduced display is set in advance before execution of the image data editing operation corresponding to the designated image editing operation.
The portable information terminal according to claim 4 .

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