JP2006157191A - Portable communication terminal, photography zoom method and display zoom method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable communication terminal in which zoom magnification can be altered easily without requiring an extra arrangement. <P>SOLUTION: Magnification of an object image is altered to a magnification assigned to an operated ten key 2a. When key 2 is operated, for example, a photography lens 11 is moved to the wide end and the object is magnified two times. When the ten key 2a of 3 or above is operated, image data of a VRAM 132 is magnified with the magnification assigned to the operated ten key 2a by an electronic zoom circuit 62. Magnification of the photography lens 11 may be five times, or the like, and the photography lens 11 is moved to the wide end or tele end depending on an operated key 1-5 in this case and then the object is magnified by 1-5 times by an optical zoom function. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a portable communication terminal, a shooting zoom method, and a display zoom method, and more particularly to a shooting zoom or display zoom in a portable communication terminal having a subject shooting function or an image display function.

In recent years, portable communication terminals having a camera function such as a CCD camera have been widely used. For example, according to Patent Document 1, a camera unit is rotatably attached to a main body of a mobile phone. The camera unit includes means for changing the zoom magnification in conjunction with the rotation position with respect to the mobile phone. When the camera unit is rotated to the operation surface side, the zoom is adjusted to the wide shooting zoom, and when the camera unit is rotated upward. The zoom is adjusted to the macro shooting zoom, and the zoom is adjusted to the telephoto shooting zoom when rotated to the non-operation side. In the camera unit, two groups of lenses constituting the zoom lens mechanism are arranged, and the distance between the frames that support the two groups of lenses changes according to the rotational position of the camera unit, so that the zoom magnification is increased. Be changed.
JP 2002-262164 A

  However, in the above-mentioned Patent Document 1, it is necessary to provide a mechanism for rotating the camera unit in a small mobile phone, which complicates the device configuration. The present invention has been made in view of such problems, and an object of the present invention is to provide a mobile communication terminal capable of easily changing the zoom magnification without providing a special configuration.

  In order to solve the above problems, a mobile communication terminal according to the present invention includes an imaging unit that photoelectrically converts a subject image to obtain an image of the subject, a zoom unit that changes a shooting magnification of the image, an operation unit including a numeric keypad, And a control unit that controls the zoom unit to change the imaging magnification of the image to the imaging magnification assigned to the operated numeric keypad.

  According to the present invention, the photographing magnification can be changed according to the operation of the numeric keypad provided in the mobile communication terminal. In a conventional mobile communication terminal with a camera, the shooting magnification is changed step by step with a cross key or the like, so it takes time to reach a desired magnification. In the present invention, the shooting magnification assigned to the numeric keypad is changed at a stroke. Can do.

  The zoom unit may be a zoom lens or an electronic zoom.

  In order to solve the above problems, a mobile communication terminal according to the present invention is assigned to a display unit that displays an image, a zoom unit that changes a display magnification of the image, an operation unit including a numeric keypad, and an operated numeric keypad. A control unit that controls the zoom unit to change the display magnification of the image to the displayed display magnification.

  According to the present invention, the display magnification can be changed according to the operation of the numeric keypad provided in the mobile communication terminal. In a conventional mobile communication terminal with a camera, the display magnification is changed step by step with a cross key or the like, so it took time to reach the desired magnification. In the present invention, however, the display magnification assigned to the numeric keypad is changed at once. Can do.

  Further, the mobile communication terminal according to the present invention provides a display unit for displaying an image, a zoom unit for changing the display magnification of the image, an operation unit including a numeric keypad, and a region on the image corresponding to the operated numeric keypad. And a control unit for controlling the zoom unit to display at a display magnification of.

  According to the present invention, the image display area and the display magnification can be changed in accordance with the operation of the numeric keypad provided in the mobile communication terminal.

  In addition, a mobile communication terminal according to the present invention includes a display unit that displays an image, a zoom unit that changes a display magnification of the image, a magnification designation key that accepts designation of a display magnification, an operation unit that includes a numeric keypad, and an operation A control unit that controls the zoom unit to display an area on the image corresponding to the numeric keypad on the display unit while maintaining the display magnification designated by the magnification designation key.

  According to the present invention, it is not necessary to respecify the magnification each time the display area is switched.

  The shooting zoom method according to the present invention includes a step of photoelectrically converting a subject image to obtain an image of the subject, a step of receiving an operation of a numeric keypad, and changing a shooting magnification of the image to a shooting magnification assigned to the operated numeric keypad. Steps.

  The display zoom method according to the present invention includes a step of accepting an operation of a numeric keypad and a step of changing a display magnification of an image to a display magnification assigned to the operated numeric keypad.

  The display zoom method according to the present invention includes a step of accepting an operation of a numeric keypad and a step of displaying an area on the image corresponding to the operated numeric keypad at a predetermined display magnification.

  The display zoom method according to the present invention includes a step of accepting designation of a display magnification of an image, and a step of displaying an area on the image corresponding to the operated numeric keypad while maintaining the designated display magnification. .

  According to the present invention, the photographing magnification or the display magnification can be changed according to the operation of the numeric keypad provided in the mobile communication terminal. In conventional mobile communication terminals, the shooting magnification or display magnification is changed stepwise with a cross key or the like, so it takes time to reach the desired magnification. However, in the present invention, the magnification assigned to the numeric keypad is changed at a stroke. Can do.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

<First Embodiment>
[Schematic configuration]
FIG. 1 is a front view of a mobile communication terminal 1 according to a preferred embodiment of the present invention. In this figure, the mobile phone 1 is shown as a preferred form of the mobile communication terminal 1, but any device provided with a numeric keypad, such as a PDA, may be used. The mobile phone 1 includes a display unit 17 constituted by an LCD, a numeric keypad 2a, a shooting key 2b, a mode button 2c, a right key 2R, a left key 2L, an up key 2U, a down key 2D, a cross key, a communication start key An operation unit 2 including various other keys such as a communication end key, an RTN key, a shooting mode transition key, a shooting start key, and an address book display key is provided. The operation unit 2 may be configured by a touch panel that detects pressing of various display buttons corresponding to the above keys and buttons. A telescopic rod-type antenna 3 is provided on the top of the mobile phone 1.

  FIG. 2 is a functional block diagram of the mobile phone 1. The cellular phone 1 includes an imaging lens 11, a solid-state imaging device 12 such as a CCD, an analog front-end IC 13 for processing an analog image read by the driver 122 from the solid-state imaging device 12 into a digital signal, and a digital image from the analog front-end IC 13. A signal processing IC 14 such as a DSP (Digital Signal Processor) that processes signals, a central processing unit (CPU) 10, a display controller 16 that controls display of the display unit 17, and the like are provided. The power supply to each circuit of the mobile phone 1 is supplied from a main power source 164 made of a battery mounted inside the casing of the mobile phone 1.

  In addition, the mobile phone 1 includes a communication unit 15 that performs wireless communication with other mobile communication terminals and the like via the antenna 3, a card connector 80 that reads data from the memory card 4 and records data in the memory card 4, and recorded contents A rewritable flash memory 19, a ROM 20 for storing various data and programs, and a RAM 21 for storing various data necessary for processing of the CPU 10. Each of the above units is connected via a bus (BUS).

  As the imaging lens 11, for example, an optical double zoom lens is used, and the motor driver 140 drives the imaging lens 11 forward / backward to the telephoto (tele) side or the wide angle (wide) side according to the magnification changing operation input from the numeric keypad 2a. By doing so, the optical zoom magnification is changed. The magnification of the imaging lens 11 is not limited to the above. The imaging lens 11 is provided with a diaphragm 116, and an appropriate exposure amount is obtained by controlling the diaphragm 116 via the motor driver 140.

  When the shooting mode is set by the mode button 2c, the CPU 10 displays a moving image (through image) on the display unit 17 so that the shooting angle of view can be confirmed. That is, the solid-state imaging device 12 converts the subject light imaged on the light receiving surface of the imaging lens 11 into a signal charge in an amount corresponding to the light amount. The signal charge of each pixel accumulated in this way is sequentially read out individually by the driver 122 as a voltage signal (image signal) corresponding to the signal charge based on a drive pulse supplied from the timing generator 121 according to a command from the CPU 10. The analog front end circuit 13 converts the digital signal into a digital signal, which is added to the signal processing circuit 14.

  The signal processing circuit 14 includes a gain adjustment circuit and an A / D converter, and includes a luminance / color difference signal generation circuit, a gamma correction circuit, a sharpness correction circuit, a contrast correction circuit, a white balance correction circuit, and an image including contour correction for a captured image. The image processing means includes a contour processing unit that performs processing, a noise reduction processing unit that performs image noise reduction processing, and the like, and processes an image signal in accordance with a command from the CPU 10.

  The image data input to the signal processing circuit 14 is converted into a luminance signal (Y signal) and a color difference signal (Cr, Cl signal) and subjected to predetermined processing such as gamma correction and then stored in the VRAM 132. The

  When the captured image is output to the display unit 17 as a monitor, the YC signal is read from the VRAM 132 and sent to the display controller 16. The display controller 16 converts the input YC signal into a predetermined display signal (for example, an NTSC color composite video signal) and outputs the converted signal to the display unit 17.

  The image data in the VRAM 132 is added from the signal processing circuit 14 to the electronic zoom circuit 62 as necessary. The electronic zoom circuit 62 performs image enlargement / reduction processing. That is, a part of the image data is cut out, and the cutout range is enlarged / reduced to perform image enlargement / reduction processing. The enlarged / reduced image data is output to the VRAM 132. The cutout range can be moved to an arbitrary position on the image by operating the operation unit 2 such as a cross button, whereby the desired range of the image data can be enlarged / reduced.

  The YC signal of each frame processed at a predetermined frame rate is alternately written in the A area and B area of the VRAM 132, and the Y area other than the area where the YC signal is written out of the A area and B area of the VRAM 132. The YC signal that has been written is read out from this area. In this way, the YC signal in the VRAM 132 is periodically rewritten, and the video signal generated from the YC signal is supplied to the display unit 17, so that the image being captured is displayed on the display unit 17 in real time. . The user can check the shooting angle of view from the video (through) displayed on the display unit 17.

  Here, when the photographing key 2b is pressed, a recording photographing operation starts. The image data acquired in response to the depression of the photographing key 2b is converted into a luminance / color difference signal (Y / C signal) by the signal processing circuit 14 and subjected to predetermined processing such as gamma correction and then stored in the RAM 21. Is done.

  The Y / C signal stored in the RAM 21 is compressed according to a predetermined format by the compression / decompression processing circuit 144 and then recorded as a file of a predetermined format such as a JPEG file on the memory card 4 via the card connector 80.

  When the moving image shooting mode is set by the mode button 2c, the moving image recording operation starts in conjunction with the pressing operation of the shooting key 2b, and when the shooting key 2b is pressed again, the moving image recording operation is stopped. The recording operation may be performed while the shooting key 2b is continuously pressed, and the recording may be stopped by releasing the pressing. The moving image data is recorded on the memory card 4 in the motion JPEG (MPEG) format, for example.

  When the playback mode is set by the mode button 2c, the compressed data of the last image file (last recorded file) recorded on the memory card 4 is read. When the file related to the last recording is a still image file, the read image compressed data is decompressed into an uncompressed YC signal via the compression / decompression processing circuit 144 and stored in the VRAM 132. The YC signal stored in the VRAM 132 is applied to the display controller 16. The display controller 16 creates an NTSC RGB color composite video signal from the input YC signal and outputs it to the display unit 17. As a result, the frame image of the last frame recorded on the memory card 4 is displayed on the display unit 17.

  Thereafter, when the right key 2R of the cross key is pressed, the frame is advanced in the forward direction, and when the left key 2L of the cross key is pressed, the frame is advanced in the reverse direction. Then, the frame-positioned image file at the frame position is read from the memory card 4 and the frame image is reproduced on the display unit 17 in the same manner as described above. If the last frame image is displayed and the frame is advanced in the forward direction, the first frame image file recorded on the memory card 4 is read and the first frame image is displayed. Played back to the unit 17.

  The electronic zoom circuit 62 also performs electronic zoom on the reproduced image. Details of changing the display magnification of the reproduction image will be described in the reproduction processing described later.

  The CPU 10 comprehensively controls each circuit in the mobile phone 1 based on input from various buttons and keys of the operation unit 2. The numeric keypad 2a is also used for adjusting the focal length of the image pickup lens 11 and instructing enlargement / reduction by the electronic zoom function. Here, as an example, a magnification n (n = 1 to 5) is assigned to the n key of the numeric keypad 2a. The assignment of the magnification to each numeric key 2a is stored in the flash memory 19 so as to be updatable, and which numeric key 2a is assigned which magnification may be appropriately changed. The details of changing the shooting magnification will be described later in the shooting process.

  The mobile phone 1 has two zoom functions, an optical zoom by the imaging lens 11 and an electronic zoom by the electronic zoom circuit 62, and the CPU 10 controls to change the magnification with priority given to the optical zoom. That is, when the n key of the numeric keypad 2a with n = 3 or more is operated, the optical zoom reaches the wide end and switches to the electronic zoom.

  The CPU 10 includes an OSD signal generation circuit, and the OSD signal generation circuit generates a signal for displaying characters such as a shutter speed, an aperture value, the number of shootable images, a shooting date / time, a warning message, and a symbol such as an icon. A signal output from the OSD signal generation circuit is mixed with an image signal as necessary and supplied to the display unit 17. As a result, a composite image in which characters, icons, and the like are combined with the through image and the playback image is displayed.

  The memory card 4 is means for holding image data obtained by photographing, and for example, a memory card called smart media is used. The form of the recording medium is not limited to this, and it may be a PC card, a compact flash (registered trademark), a magnetic disk, an optical disk, a magneto-optical disk, a memory stick, etc., electronic, magnetic, optical, or a combination thereof A readable / writable medium can be used in accordance with the above-described method. A configuration in which a plurality of media can be mounted regardless of different types or the same type of recording media may be adopted. The means for storing the image file is not limited to a removable medium that can be attached to and detached from the camera body, but may be a recording medium (built-in memory) built in the camera.

[Process flow]
(Shooting process)
Next, the flow of photographing processing executed by the CPU 10 will be described based on the flowchart of FIG. In this process, the magnification assigned to each numeric key of the numeric keypad 2a is set according to the operation of each numeric key. This process starts when the shooting mode is set by the mode button 2c. This process ends immediately in response to an operation such as a call end key.

  In S <b> 1, a moving image (through image) is displayed on the display unit 17 so that the shooting angle of view can be confirmed.

  In S2, it is detected whether or not the operation unit 2 has been operated. If an operation is detected, the process proceeds to S3.

  In S3, it is determined whether or not the operation has been any of the n keys (n = 0 to 5) of the numeric keypad 2a. If the n key is operated, the process proceeds to S5. If any other key or button is operated, the process proceeds to S6.

  In S5, it is determined whether or not the operation is the 0 key of the numeric keypad 2a. If the 0 key is operated, the process proceeds to S8, if the 0 key is operated, the process proceeds to S8, and if the 1-5 key is operated, the process proceeds to S7.

  In S6, it is determined whether or not the photographing key 2b has been operated. If the photographing key 2b is operated, the process proceeds to S9, and otherwise, the process returns to S2.

  In S7, the magnification of the subject image is changed to the magnification assigned to the operated numeric keypad 2a. For example, when the 2 key is operated, the photographing lens 11 is moved to the wide end to enlarge the subject twice. When three or more numeric keys 2a are operated, the image data in the VRAM 132 is enlarged to the magnification assigned to the numeric keys 2a operated by the electronic zoom circuit 62. The magnification of the photographic lens 11 may be 5 times or the like. In this case, the photographic lens 11 is moved to the wide end or the tele end according to the operated 1 to 5 keys, and the subject is magnified by the optical zoom function. Enlarge up to 5 times.

  In S8, the zoom function is initialized. That is, the photographing lens 11 is moved to the telephoto end, and the electronic zoom function by the electronic zoom circuit 62 is stopped.

  In S9, the photographing operation is executed, and the process returns to S2.

  As described above, the magnification of the subject image is changed according to the magnification assigned to the operated numeric keypad 2a. In the case of specifying the magnification change by the conventional cross key operation or the like, it has been necessary to sequentially change the magnification from a small magnification to a large magnification to reach the target magnification, but in the present invention, the target magnification is operated by operating the numeric keypad 2a. It is convenient to specify it immediately.

(Reproduction processing)
Next, the flow of the reproduction process executed by the CPU 10 will be described based on the flowchart of FIG. In this process, when the captured image is reproduced, the magnification of the reproduced image is changed to the magnification assigned to the numeric keypad 2a and displayed. This process starts when the playback mode is set by the mode button 2c. This process ends immediately in response to an operation such as a call end key.

  In S11, as shown in FIG. 5, the last (or first) image file recorded in the memory card 4 is displayed in the image display area X1 of the display unit 17. The OSD circuit may display the magnification assigned to the numeric keypad 2a in the operation explanation display area X2 of the display unit 17.

  In S12, it is detected whether or not the operation unit 2 has been operated. If an operation is detected, the process proceeds to S13.

  In S13, it is determined whether or not the operation has been performed by either the up key 2U or the down key 2D. If the upper key 2U or the lower key 2D is operated, the process proceeds to S14, and if any other key / button is operated, the process proceeds to S15.

  In S14, the magnification of the reproduced image is sequentially changed according to the operation of the up key 2U or the down key 2D. That is, each time the upper key 2U is pressed, the magnification is changed by one step higher than the current magnification, and every time the lower key 2D is pressed, the magnification is changed by one step lower than the current magnification.

  In S15, it is determined whether or not it has been operated either the right key 2R or the left key 2L. If the right key 2R or the left key 2L is operated, the process proceeds to S16. If any other key or button is operated, the process proceeds to S17.

  In S16, the image is advanced by one frame according to the operation of the right key 2R or the left key 2L. That is, when the right key 2R of the cross key is pressed, the frame is advanced in the forward direction, and when the left key 2L of the cross key is pressed, the frame is advanced in the reverse direction.

  In S17, it is determined whether or not the operation is any of the n keys (n = 1 to 9) of the numeric keypad 2a. If the n key is operated, the process proceeds to S18, and if any other key or button is operated, the process returns to S12.

  In S18, the electronic zoom circuit 62 is controlled, and the magnification of the reproduced image is changed to the magnification assigned to the operated numeric keypad 2a. For example, a magnification of n times (n = 1 to 3) is assigned to the n key, and when the n key is operated, the image data is enlarged n times. Then, the process returns to S2.

  As described above, the reproduced image is enlarged according to the magnification assigned to the operated numeric keypad 2a. In the case of specifying the magnification change by the conventional cross key operation or the like, it has been necessary to sequentially change the magnification from a small magnification to a large magnification to reach the target magnification, but in the present invention, the target magnification is operated by operating the numeric keypad 2a. It is convenient to specify it immediately.

Second Embodiment
In the reproduction processing of the first embodiment, the cutout range is moved with the cross key to designate the area to be enlarged in the reproduction image, and the magnification of the image in the cutout range is changed with the numeric keypad. However, if the following reproduction process is performed, it is possible to simultaneously specify the movement of the cut-out area and the change of the magnification only by operating the numeric keypad.

  FIG. 6 is a flowchart showing the flow of the reproduction process according to the second embodiment. This process can be executed by the CPU 10 of the mobile communication terminal 1 of the first embodiment.

  In S 21, the final (or first) image file recorded on the memory card 4 is displayed in the image display area X 1 of the display unit 17. On the other hand, the position of the cutout range assigned to the numeric keypad 2a is displayed in the operation explanation display area X2 of the display unit 17 (see FIG. 8).

  In S22, it is detected whether or not the operation unit 2 has been operated. If an operation is detected, the process proceeds to S3.

  In S23, it is determined whether or not one of the numeric keys 1 to 9 of the numeric keypad 2a has been operated. If any one of the keys 1 to 9 is operated, the process proceeds to S24, and if any other key / button is operated, the process proceeds to S25.

  In S24, the cutout range is moved to the position assigned to the operated numeric keypad 2a. The assignment of the position to the numeric keypad 2a is performed, for example, by associating the center coordinates of the rectangular cutout range with each numeric keypad 1-9. Then, the magnification of the image of the moved cutout range is changed to a predetermined magnification (for example, 2 times). You may provide the mode which can change this predetermined magnification.

  In S25, it is determined whether the up key 2U or the down key 2D has been operated. If the upper key 2U or the lower key 2D is operated, the process proceeds to S26, and if any other key / button is operated, the process proceeds to S27.

  In S26, the reproduction image magnification is sequentially changed according to the operation of the up key 2U or the down key 2D. That is, every time the upper key 2U is pressed, the magnification is changed (enlarged) by one step higher than the current magnification, and every time the lower key 2D is pressed, the magnification is changed (reduced) by one step lower than the current magnification. To do.

  In S27, it is determined whether or not the photographing key 2b has been operated. When the photographing key 2b is operated, the process proceeds to a display area changing process, and when the photographing key 2b is not operated, the process proceeds to S28.

  In S28, it is determined whether or not the operation is the 0 key of the numeric keypad 2a. If the 0 key is operated, the process proceeds to S20, and otherwise, the process returns to S22.

  In S20, the display magnification and the cutout range are returned to the default settings. For example, the display magnification is returned to the same magnification, and the cutout range is returned to the center. Then, the process returns to S22.

  FIG. 7 is a flowchart of the display area changing process.

  In S29, it is determined whether or not the cross key has been operated. In S30, the cutout range is moved up, down, left, or right in accordance with the operation of the cross key. In S31, it is determined whether or not the shooting key 2b has been operated again. If the shooting key 2b has been operated, the process returns to S22, and if the shooting key 2b has not been operated, the process returns to S29.

  As described above, in this embodiment, the cutout range is moved and enlarged to a predetermined magnification in accordance with the operation of the numeric keypad. This is convenient because it is not necessary to separately operate the movement of the cutout range, that is, the enlargement area, and the magnification designation as in the prior art.

<Third Embodiment>
In the second embodiment, the image in the cutout range is enlarged / reduced at a predetermined magnification. However, while the magnification change and the movement of the cutout range are repeated, the user can enlarge / reduce which portion of the image at what magnification. You may not be sure if it is displayed. Then, it is necessary to press the 0 key to return the magnification and the cutout range position to the default settings, and to move the magnification and the cutout range position again. However, in this case, it is not necessary to change the current magnification, but it returns to the default setting, and it is troublesome to specify the magnification again. In order to solve such a problem, as shown below, it is only necessary to separately perform enlargement / reduction display of an image at a specified magnification and display of movement of a cutout range.

  FIG. 9 is a flowchart showing the flow of the reproduction process according to the third embodiment. This process starts when the playback mode is set by the mode button 2c. This process can be executed by the CPU 10 of the mobile communication terminal 1 of the first embodiment.

  In S41, the last (or first) image file recorded in the memory card 4 is displayed on the display unit 17.

  In S42, it is detected whether or not the operation unit 2 has been operated. If an operation is detected, the process proceeds to S43.

  In S43, it is determined whether or not the up key 2U has been operated. If the upper key 2U is operated, the process proceeds to S44, and if any other key / button is operated, the process proceeds to S45.

  In S44, the magnification of the reproduced image is sequentially changed according to the operation of the up key 2U. That is, every time the up key 2U is pressed, the magnification is changed by one step higher than the current magnification.

  In S45, it is determined whether or not it was the down key 2D that was operated. If the lower key 2D is operated, the process proceeds to S46, and otherwise, the process proceeds to S47.

  In S46, it is determined whether or not the current image is in an enlarged state, that is, whether or not the magnification exceeds the same magnification (1 ×). If it is in the enlarged state, the process proceeds to S48, and otherwise, the process returns to S42.

  In S47, it is determined whether or not any of the ten keys 2a has been operated. If the numeric keypad 2a is operated, the process proceeds to the display subroutine of FIG. 10, and otherwise, the process proceeds to S48. The display subroutine will be described later.

  In S48, the reproduction image magnification is sequentially changed in accordance with the operation of the down key 2D. That is, every time the lower key 2D is pressed, the magnification is changed by one step lower than the current magnification.

  In S49, it is determined whether or not it has been operated either the right key 2R or the right key 2L. If the right key 2R or the right key 2L is operated, the process proceeds to S40, and if any other key or button is operated, the process returns to S42.

  In S40, the image is advanced by one frame in accordance with the operation of the right key 2R or the right key 2L. That is, when the right key 2R of the cross key is pressed, the frame is advanced in the forward direction, and when the left key 2L of the cross key is pressed, the frame is advanced in the reverse direction.

  FIG. 10 is a flowchart showing the flow of the display subroutine.

  In S50, it is determined whether or not the current image is in an enlarged state, that is, whether or not the magnification exceeds 1 × (1 ×). If it is in the enlarged state, the process proceeds to S51, and otherwise, the process returns to S42 of the reproduction process.

  In S51, it is determined whether or not the operation is the 0 key of the numeric keypad 2a. If the 0 key has been operated, the process proceeds to S52, and otherwise, the process proceeds to S53.

  In S52, the image magnification is changed to the same magnification.

  In S53, the reference position (image reference position) of the image corresponding to the operated 1 to 9 keys (excluding the 0 key) is maintained as the operated 1 to 9 keys while maintaining the currently specified magnification. Display is performed in accordance with the corresponding reference position (display reference position) on the display unit 17.

  As an example, the image reference position and the display reference position corresponding to the 1 to 9 keys can be determined as shown in FIG. 11A shows the correspondence between the 1 to 9 keys, the image reference position and the display reference position, FIG. 11B shows the image reference position set for a certain image, and FIG. 11B shows the setting on the display unit 17. An example of the display reference position is shown.

  For example, the image reference position and the display reference position as described above are set, and the image (a state where A8 and B8 are combined) as shown in FIG. Assume that the 2 key is operated in the state. In this case, as shown in FIG. 12B, the image reference position A2 corresponding to the 2 key and the display reference position B2 are combined to display an image while maintaining the current designated magnification.

  As described above, in this embodiment, the image is scaled according to the magnification specified by the up key 2U / down key 2D, and the cutout range is moved while maintaining the current magnification according to the operation of the 1 to 9 keys. To display the image. In this way, the current display magnification is maintained by operating the 1 to 9 keys even if it becomes unclear which part of the current image is displayed at what magnification while repeatedly changing the magnification and moving the cutout range. By moving the display portion of the image as it is, it is possible to know what portion of the image is currently displayed at what magnification, and there is no need to return the display magnification to the default setting.

Front view of mobile communication terminal Block diagram of mobile communication terminal Flow chart showing the flow of shooting processing Flow chart showing the flow of playback processing The figure which shows an example of reproduction display of an image file Flowchart showing the flow of playback processing according to the second embodiment Flow chart showing flow of display area change processing The figure which shows the example of a display of the movement position of the clipping range allocated to the numeric keypad The flowchart which shows the flow of the reproduction | regeneration processing based on 3rd Embodiment. Flow chart showing the flow of the display subroutine The figure which shows an example of the image reference position and display reference position corresponding to 1-9 keys The figure which illustrated the state where the image reference position corresponding to the operated numeric keypad and the display reference position were combined and displayed while maintaining the current magnification

Explanation of symbols

10: CPU, 11: imaging lens, 17: display unit

Claims (10)

An imaging unit that photoelectrically converts a subject image to obtain a subject image;
A zoom unit for changing a photographing magnification of the image;
An operation unit including a numeric keypad;
A control unit that controls the zoom unit to change the shooting magnification of the image to the shooting magnification assigned to the operated numeric keypad;
A mobile communication terminal comprising:   The mobile communication terminal according to claim 1, wherein the zoom unit includes a zoom lens.   The mobile communication terminal according to claim 1, wherein the zoom unit includes an electronic zoom unit that cuts out a part of the image and changes a shooting magnification. A display for displaying an image;
A zoom unit for changing a display magnification of the image;
An operation unit including a numeric keypad;
A control unit that controls the zoom unit to change the display magnification of the image to the display magnification assigned to the operated numeric keypad;
A mobile communication terminal comprising: A display for displaying an image;
A zoom unit for changing a display magnification of the image;
An operation unit including a numeric keypad;
A control unit that controls the zoom unit to display a region on the image corresponding to the operated numeric keypad at a predetermined display magnification;
A mobile communication terminal comprising: A display for displaying an image;
A zoom unit for changing a display magnification of the image;
An operation unit including a magnification designation key for accepting designation of the display magnification, and a numeric keypad;
A control unit for controlling the zoom unit to display an area on the image corresponding to the operated numeric keypad on the display unit while maintaining a display magnification designated by the magnification designation key;
A mobile communication terminal comprising: Obtaining a subject image by photoelectrically converting the subject image;
A step of accepting the operation of the numeric keypad;
Changing the shooting magnification of the image to the shooting magnification assigned to the operated numeric keypad;
Including shooting zoom method. A step of accepting the operation of the numeric keypad;
Changing the display magnification of the image to the display magnification assigned to the operated numeric keypad;
Display zoom method including. A step of accepting the operation of the numeric keypad;
A display zoom method including a step of displaying an area on an image corresponding to an operated numeric keypad at a predetermined display magnification. A step of accepting specification of an image display magnification;
Displaying an area on the image corresponding to the operated numeric keypad while maintaining the designated display magnification;
Display zoom method including.

Images