JP2019197557A - Display control unit and method for controlling display control unit - Google Patents

Abstract

To make it possible, with a touch operation, to smoothly change to another image, while maintaining an enlargement position.SOLUTION: A display control unit has touch detection means, enlarging and displaying means, and control means. Touch means detects a touch operation on an operation surface. The enlarging and displaying means enlarges and displays a partial range of an image displayed in a display area of display means. In response to a situation where, while a first image is enlarged and displayed on the display means, two points on the operation surface are touched and the two touch positions are moved in the same predetermined direction, the control means controls to perform enlarged image feeding of changing display of the display means from enlarged display of the first image to enlarged display of a second image.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a display control device and a control method for the display control device, and more particularly to a technique suitable for displaying and enlarging a still image recorded on a storage medium.

  In recent years, improvements in continuous shooting functions are conspicuous in digital cameras, and the number of scenes using continuous shooting is increasing. For this reason, there is a need for a means for easily selecting the most in-focus image among a plurality of images taken for the same subject.

  Usually, when confirming the focus, the portion of the photographed image that is in focus is enlarged and displayed and visually confirmed. At this time, in the conventional digital camera, a cross key or a wheel as a rotating operation member is rotated. Then, a technique has been proposed in which it is possible to switch to another image continuously shot while maintaining the enlarged position and the enlargement magnification, and to check the focus of a plurality of images (Patent Document 1).

  In addition, the adoption of touch panels for devices capable of displaying images is also progressing. In Patent Document 2, it is possible to instruct page turning by a touch operation on the touch panel, and according to the number of touches, one page is displayed as a next page, two pages are displayed one after another, and three pages are displayed one after another. It has been proposed.

JP 2006-060387 A JP-A-8-76926

In a digital camera equipped with a recent touch panel, it is possible to change the enlargement magnification and move the enlargement position by touch operation. However, there is no means to switch to another image while maintaining the enlargement position, and it is possible to focus efficiently. Could not confirm.
In view of the above-described problems, an object of the present invention is to enable smooth switching to another image while maintaining an enlarged position by a touch operation.

  The display control apparatus according to the present invention includes a touch detection unit that detects a touch operation on the operation surface, an enlarged display unit that enlarges and displays a partial range of an image displayed in the display area of the display unit, and a display unit that includes When the image of 1 is enlarged and displayed, the display means displays in response to the touch position of the two points moving in the same predetermined direction while the operation surface is touched with two points. And a control means for controlling to perform enlarged image feed for switching from the enlarged display of the first image to the enlarged display of the second image.

  According to the present invention, it is possible to smoothly switch to another image in the enlarged state without changing the enlargement position.

1 is an external view of a digital camera according to an embodiment of the present invention. It is a block diagram which shows the structural example of the digital camera by embodiment. It is a figure which shows the example of a display which displayed the full screen on the display part at the time of single reproduction. It is a figure which shows the example of a display in the display part at the time of enlarging and displaying an image. It is a screen figure which shows the enlarged image sending operation method. It is a flowchart which shows the process sequence of the single reproduction | regeneration which concerns on embodiment. It is a flowchart which shows the process of the expansion reproduction which concerns on embodiment. It is a flowchart which shows the process of the expansion reproduction which concerns on embodiment. It is a flowchart which shows the process of the enlarged image sending which concerns on embodiment.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a display control device and a display control device control method of the invention will be described with reference to the drawings.
FIG. 1 shows an external view of a digital camera as an example of an imaging apparatus of the present invention.
The display unit 28 is a display unit that displays images and various types of information. The shutter button 61 is an operation unit for issuing a shooting instruction. The mode switch 60 is an operation unit for switching various modes.

  The connector 112 is a connector between the connection cable 111 and the digital camera 100. The operation unit 70 is an operation unit including operation members such as various switches, buttons, and a touch panel for receiving various operations from the user. The controller wheel 73 is a rotatable operation member included in the operation unit 70.

  The power switch 72 is a push button for switching between power on and power off. The recording medium 200 is a recording medium such as a memory card or a hard disk. The recording medium slot 201 is a slot for storing the recording medium 200. The recording medium 200 stored in the recording medium slot 201 can communicate with the digital camera 100. A lid 202 is a lid of the recording medium slot 201.

FIG. 2 is a block diagram illustrating a configuration example of the digital camera 100 according to the present embodiment.
In FIG. 2, a photographing lens 103 is a lens group including a zoom lens and a focus lens. The shutter 101 is a shutter having an aperture function. The imaging unit 22 is an imaging device configured with a CCD, a CMOS device, or the like that converts an optical image into an electrical signal.

  The A / D converter 23 is used to convert an analog signal output from the imaging unit 22 into a digital signal. The barrier 102 covers the imaging system including the imaging lens 103 of the digital camera 100, thereby preventing the imaging system including the imaging lens 103, the shutter 101, and the imaging unit 22 from becoming dirty or damaged.

  The image processing unit 24 performs resizing processing such as predetermined pixel interpolation and reduction and color conversion processing on the data from the A / D converter 23 or the data from the memory control unit 15. The image processing unit 24 performs predetermined calculation processing using the captured image data, and the system control unit 50 performs exposure control and distance measurement control based on the obtained calculation result.

  Thereby, AF (autofocus) processing, AE (automatic exposure) processing, and EF (flash pre-emission) processing of the TTL (through-the-lens) method are performed. The image processing unit 24 further performs predetermined calculation processing using the captured image data, and also performs TTL AWB (auto white balance) processing based on the obtained calculation result.

  Output data from the A / D converter 23 is directly written into the memory 32 via the image processing unit 24 and the memory control unit 15 or via the memory control unit 15. The memory 32 stores image data obtained by the imaging unit 22 and converted into digital data by the A / D converter 23 and image data to be displayed on the display unit 28. The memory 32 has a storage capacity sufficient to store a predetermined number of still images, a moving image and sound for a predetermined time.

  The memory 32 also serves as an image display memory (video memory). The D / A converter 13 converts the image display data stored in the memory 32 into an analog signal and supplies the analog signal to the display unit 28. Thus, the display image data written in the memory 32 is displayed on the display unit 28 via the D / A converter 13.

  The display unit 28 performs display according to the analog signal from the D / A converter 13 on a display such as an LCD. A digital signal once A / D converted by the A / D converter 23 and stored in the memory 32 is converted into an analog signal by the D / A converter 13 and sequentially transferred to the display unit 28 for display as an electronic viewfinder. It functions and can perform live view display (live view display).

  The nonvolatile memory 56 is an electrically erasable / recordable memory, and for example, an EEPROM or the like is used. The nonvolatile memory 56 stores constants, programs, and the like for operating the system control unit 50. Here, the program is a program for executing various flowcharts described later in the present embodiment.

  The system control unit 50 controls the entire digital camera 100. By executing the program recorded in the non-volatile memory 56 described above, each process of the present embodiment to be described later is realized. A system memory 52 is a RAM. In the system memory 52, constants and variables for operation of the system control unit 50, programs read from the nonvolatile memory 56, and the like are expanded. The system control unit 50 also performs display control by controlling the memory 32, the D / A converter 13, the display unit 28, and the like. The system timer 53 is a time measuring unit that measures the time used for various controls and the time of a built-in clock.

  The mode switch 60, the shutter button 61, and the operation unit 70 are operation means for inputting various operation instructions to the system control unit 50. The mode switch 60 switches the operation mode of the system control unit 50 to any one of a still image recording mode, a moving image recording mode, a reproduction mode, and the like. Modes included in the still image recording mode include an auto shooting mode, an auto scene discrimination mode, a manual mode, various scene modes for shooting settings for each shooting scene, a program AE mode, a custom mode, and the like.

  The mode changeover switch 60 can directly switch to one of these modes included in the still image shooting mode. Alternatively, after switching to the still image shooting mode once with the mode switch 60, the mode may be switched to any one of these modes included in the still image shooting mode using another operation member. Similarly, the moving image shooting mode may include a plurality of modes.

  The first shutter switch 62 is turned on when the shutter button 61 provided in the digital camera 100 is being operated, so-called half-press (shooting preparation instruction), and generates a first shutter switch signal SW1. In response to the first shutter switch signal SW1, operations such as AF (autofocus) processing, AE (automatic exposure) processing, AWB (auto white balance) processing, and EF (flash pre-emission) processing are started.

  The second shutter switch 64 is turned ON when the operation of the shutter button 61 is completed, that is, when it is fully pressed (shooting instruction), and generates a second shutter switch signal SW2. In response to the second shutter switch signal SW2, the system control unit 50 starts a series of shooting processing operations from reading a signal from the imaging unit 22 to writing image data on the recording medium 200.

  Each operation member of the operation unit 70 is appropriately assigned a function for each scene by selecting and operating various function icons displayed on the display unit 28, and functions as various function buttons. Examples of the function buttons include an end button, a return button, an image advance button, a jump button, a narrowing button, and an attribute change button. For example, when a menu button is pressed, various setting menu screens are displayed on the display unit 28. The user can make various settings intuitively using the menu screen displayed on the display unit 28, and the four-way button and the SET button.

  The controller wheel 73 is a rotatable operation member included in the operation unit 70, and is used when a selection item is instructed together with a direction button. When the controller wheel 73 is rotated, an electrical pulse signal is generated according to the operation amount, and the system control unit 50 controls each unit of the digital camera 100 based on the pulse signal. From this pulse signal, it is possible to determine the angle at which the controller wheel 73 is rotated, how many rotations, and the like.

  The controller wheel 73 may be any operation member that can detect a rotation operation. For example, it may be a dial operation member that generates a pulse signal by rotating the controller wheel 73 itself according to the rotation operation of the user. Further, an operation member made of a touch sensor may detect the rotation operation of the user's finger on the controller wheel 73 without rotating the controller wheel 73 itself (so-called touch wheel).

  The power control unit 80 includes a battery detection circuit, a DC-DC converter, a switch circuit that switches a block to be energized, and the like, and detects whether or not a battery is installed, the type of battery, and the remaining battery level. Further, the power control unit 80 controls the DC-DC converter based on the detection result and an instruction from the system control unit 50, and supplies a necessary voltage to each unit including the recording medium 200 for a necessary period.

  The power supply unit 30 includes a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, a NiMH battery, or a Li battery, an AC adapter, or the like. The recording medium I / F 18 is an interface with the recording medium 200 such as a memory card or a hard disk. The recording medium 200 is a recording medium such as a memory card for recording a captured image, and includes a semiconductor memory, a magnetic disk, or the like.

  The communication unit 54 is connected by radio or a priority cable, and transmits and receives video signals and audio signals. The communication unit 54 can be connected to a wireless local area network (LAN) or the Internet. The communication unit 54 can transmit an image captured by the imaging unit 22 (including a through image) and an image recorded on the recording medium 200, and can receive image data and other various types of information from an external device. it can.

  The posture detection unit 55 detects the posture of the digital camera 100 with respect to the direction of gravity. Based on the posture detected by the posture detection unit 55, whether the image shot by the imaging unit 22 is an image shot with the digital camera 100 held horizontally or an image shot with the image held vertically. It can be determined. The system control unit 50 can add orientation information corresponding to the posture detected by the posture detection unit 55 to the image file of the image picked up by the image pickup unit 22, or rotate and record the image. is there. As the attitude detection unit 55, an acceleration sensor, a gyro sensor, or the like can be used.

  As one of the operation units 70, a touch panel capable of detecting contact with the display unit 28 is provided. The touch panel and the display unit 28 can be configured integrally. For example, the touch panel is configured such that the light transmittance does not hinder the display of the display unit 28, and is attached to the upper layer of the display surface of the display unit 28. Then, the input coordinates on the touch panel are associated with the display coordinates on the display unit 28. Thereby, it is possible to configure a GUI (graphical user interface) as if the user can directly operate the screen displayed on the display unit 28.

The system control unit 50 can detect the following operations or states on the touch panel.
(A) Touching the touch panel with a finger or a pen (hereinafter referred to as touch-down).
(B) The touch panel is touched with a finger or a pen (hereinafter referred to as touch-on).
(C) The touch panel is moved while being touched with a finger or a pen (hereinafter referred to as “Touch-Move”).
(D) A finger or pen that has been touching the touch panel is released (hereinafter referred to as touch-up).
(E) A state where nothing touches the touch panel (hereinafter referred to as touch-off).

  The operations and states of (a) to (e) and the position coordinates where the finger or pen touches the touch panel are notified to the system control unit 50 through the internal bus, and the system control unit 50 is based on the notified information. It is determined what operation has been performed on the touch panel. Regarding the touch move, the moving direction of the finger or pen moving on the touch panel can also be determined for each vertical component / horizontal component on the touch panel based on the change of the position coordinates. Thereby, the touch detection function which detects the touch operation with respect to the display part 28 can be comprised.

  Further, it is assumed that a stroke is drawn when touch-up is performed on the touch panel through a certain touch move from touch-down. The operation of drawing a stroke quickly is called a flick. A flick is an operation of quickly moving a certain distance while touching a finger on the touch panel and then releasing it, in other words, an operation of quickly tracing a finger on the touch panel.

  When it is detected that a touch move is performed at a predetermined speed or more over a predetermined distance and a touch-up is detected as it is, it can be determined that a flick has been performed. In addition, when it is detected that a touch move is performed at a predetermined distance or more and less than a predetermined speed, it is determined that a drag has been performed. In addition, an operation of narrowing or widening the distance between two points while touching two points simultaneously (two or more points simultaneously) is called pinching.

  Of these, the operation of reducing the distance between two points is called pinch-in. Pinch-in is an operation of bringing two fingers close together while touching the multi-touch panel, in other words, an operation of tracing two fingers on the multi-touch panel. Conversely, an operation of increasing the distance between two points while touching two points at the same time is called pinch out. Furthermore, a state in which a finger or a pen is brought close to the touch panel although not touching the touch panel is called a hover.

  The touch panel may be any of various types of touch panels such as a resistive film type, a capacitance type, a surface acoustic wave type, an infrared type, an electromagnetic induction type, an image recognition type, and an optical sensor type. .

  FIG. 3 is a diagram illustrating a display example when an image 501 (for example, an image with a file name 0001.jpg) is displayed on the display unit 28 in full screen (displayed with the maximum size that can fit the entire image in the display area). . When the image in FIG. 3 is enlarged, the image is enlarged on the basis of the center, and the display state in FIG. 4 is obtained.

  FIG. 4 is a diagram illustrating a display example on the display unit 28 when the image 501 is enlarged and displayed. A part of the image, not the entire image, is enlarged and displayed on the display unit 28. A guide 503 indicates an enlarged portion (white portion) of the entire image 501 (white frame). According to the guide 503, it can be seen that the central portion of the image 501 is enlarged and displayed in FIG. From this state, when the enlargement position is changed by the enlargement position instruction and the enlargement position is moved upward, the display state shown in FIG. Reference numeral 504 denotes a menu button displayed on the display unit 28.

  FIG. 5A is a schematic diagram when two points are touch-moved by touching two points with the finger 505 when the enlarged position of the image 501 is enlarged and displayed near the upper center. In the present embodiment, enlarged image feed is executed by a two-point touch move, and the display state in FIG. 5A is switched to the display state in FIG.

  FIG. 5B is a display example in which the same enlargement position as that in FIG. 5A is enlarged for an image 502 (for example, an image with a file name 0002.jpg) whose image sending order is the next of the image 501. . As can be seen from the guide 503, before and after the enlargement feed (FIG. 5 (a) (first image) and FIG. 5 (b) (second image)), the enlargement position and the ratio of the enlargement range to the whole are as follows. It can be seen that there is no change, and that image feed is performed with the enlargement center position and enlargement magnification fixed.

Hereinafter, the process which implement | achieves such a transition using a flowchart is demonstrated.
6, 7, and 8 are flowcharts for explaining the operation of this embodiment. This process is realized by developing a program recorded in the nonvolatile memory 56 in the system memory 52 and executing it by the system control unit 50.

FIG. 6 is a flowchart showing a processing procedure in the single reproduction mode for reproducing one image.
First, in S601, the image number N of the newest image among the images recorded on the recording medium 200 is acquired.
In step S <b> 602, the Nth image is read and placed in the memory 32.
In S603, the image arranged in the memory 32 is decoded and displayed on the display unit 28 (FIG. 3).
In S604, it is determined whether or not there is an input to the operation unit 70. If there is an input, the process proceeds to S605. If not, the process continues to wait until there is an input in S604.

  In step S605, it is determined whether the input operation is an enlargement operation. The enlargement operation includes, for example, an operation of the zoom lever (zoom operation member) included in the operation unit 70 toward the Tele side (the same operation as the enlargement with the optical zoom at the time of shooting). It can also be enlarged by a pinch-out operation on the touch panel. If it is an enlargement operation, the process proceeds to S606, and if not, the process proceeds to S608.

In S606, the image displayed on the display unit 28 is enlarged and displayed, and the process proceeds to S607 (FIG. 4).
In step S608, it is determined whether the input operation is an image forwarding operation. Image forward operation includes forward and reverse operations. If the forward direction is selected, the image next to the currently displayed image is displayed in the forward direction. Displays the image before the currently displayed image.

  Pressing the right button of the four-direction button included in the operation unit 70, clockwise operation of the controller wheel 73, and right touch movement (dragging or flicking) by single touch correspond to forward image feed operations. Pressing the left button of the four-direction button included in the operation unit 70, counter-clockwise operation of the controller wheel 73, and touch movement (dragging or flicking) in the left direction with a single touch correspond to an image feeding operation in the reverse direction.

If it is an image forwarding operation, the process proceeds to S609, and if not, the process proceeds to S610.
In S609, the next image in the direction in which the image forwarding instruction is given is read from the recording medium 200 to the memory 32, and is displayed on the display unit 28 in S603.

  In S610, it is determined whether the input operation is an instruction to end the function, and if it is an instruction to end, the process ends in S612. If it is not an instruction to end, other processing is executed in S611. Examples of the other processing mentioned here include processing for opening a menu screen and processing for displaying an index.

7 and 8 are flowcharts for explaining the processing procedure in the enlarged reproduction mode.
When enlargement reproduction is instructed in S607, enlargement reproduction processing is started, and it is determined in S701 whether or not a touchdown operation has been performed. If there is a touchdown operation, the process proceeds to S702, and if not, the process proceeds to S703.
In S703, it is determined whether or not there is a button input. If there is a button input, the process proceeds to S723. If not, the process returns to S701 and waits for an input.

In S723, it is determined whether or not the input operation is an input to end enlargement reproduction. If it is an input to end enlargement reproduction, the process proceeds to step S725, where enlargement reproduction is terminated, and an image is displayed again in step S603 to wait for input.
If it is not an input to end enlargement reproduction in S723, other button processing is executed in S724, and the process returns to S701 to wait for input again. Here, the other button processing includes switching processing of information display to be displayed on the display unit 28.

In step S <b> 702, it is determined whether the touch-down is a two-point touch. If the touch is two points, the process proceeds to S704, and if not, the process proceeds to S801.
In step S <b> 704, a guide (not shown) indicating that enlarged image feeding can be performed by touch moving the two touched points (touch positions) in the same direction is displayed. .
In S705, the coordinates of each touched point are stored in the memory 32, and the process proceeds to S706.

  In step S706, it is determined whether a pinch operation has been performed. If a pinch operation has been performed, the process advances to step S707, and enlargement (pinch out) / reduction (pinch in) processing is performed according to the pinch direction, and the display is updated by changing the enlargement magnification (display magnification) according to the magnification instruction.

  In step S709, the enlargement ratio after the enlargement / reduction processing is stored in the memory 32. In step S710, a pinch execution flag (held in the system memory 52) for storing whether or not a pinch operation has been performed is set to ON.

If there is no pinch operation in S706, it is determined whether or not one of the two touched points in S708 has been touched up. If one point has been touched up, the process proceeds to S801. If one point has not been touched up, the process advances to step S712 to determine whether all touched points have been touched up.
If all points are touched up, the process proceeds to S713. If not, the process returns to S706 and continues.

  In S713, the system memory 52 is referenced to determine whether the pinch execution flag is set to ON. If it is set to ON, the process proceeds to S714, the pinch execution flag is set to OFF, and the process returns to S701 to wait for input. If the pinch execution flag is not ON in step S713, the process proceeds to step S715, and it is determined whether the operation performed until the touch-up of all points is a touch move in the same direction at the two touched points. .

  More specifically, predetermined two coordinates are stored in the system memory 52 when the two-point touch is started, and two coordinates (touch-up points) immediately before the all-point touch-up is detected in S712. If there is a difference greater than the distance, it is determined that there has been a two-point touch move. Then, when the direction of the maximum component of each difference (either up, down, left, or right) is the same, it is determined that there has been a touch move in the same direction.

If it is a touch move in the same direction, the process proceeds to S716. If not, the process returns to S701 to wait for an input.
In S716, it is determined whether or not the touch move operation is a touch move longer than a predetermined distance. If the touch move operation is longer than the predetermined distance, the process proceeds to S717. If the distance is not greater than the predetermined distance, the process proceeds to S722, performs other touch processing, returns to S701, and waits for input again. For the other touch processing at this time, for example, functions such as erasing the displayed image or adding a favorite mark may be executed.

In S717, it is determined whether or not the touch move of a predetermined distance or more is in the horizontal direction. If it is in the horizontal direction, the process proceeds to S718, and if not, the process proceeds to S722.
In S718, it is determined whether or not the amount of movement of the touch move that is equal to or greater than a predetermined distance is movement in the positive direction (right direction). If it is the forward direction, the process proceeds to S719, the image number N is incremented by 1, and the process proceeds to S721 to execute an enlarged image feed process.

As a result, the enlarged image feed by the two-point touch as described in FIGS. 5A and 5B is executed.
On the other hand, if it is not the positive direction (if it is the negative direction, that is, the left direction), in S720, the image number N is reduced by one, and the enlarged image feed process is executed in S721.

  Thus, since the enlarged image feed is executed after touching up all the points, the enlarged position of the image is not changed during the touch operation at two points. Therefore, it is possible to prevent the enlargement position from being shifted between the previous and next images when the enlarged image feed is attempted.

  On the other hand, if the touch is not a two-point touch in S702, the process proceeds to S801, and the coordinates of the touched one point are stored in the system memory 52. Thereafter, in S802, it is determined whether or not the touch movement has been performed. If the touch movement has been performed, the process proceeds to S803.

  In step S <b> 803, it is determined whether there is hover detection separately from one point that has been touch-moved. Hover detection is proximity detection as to whether or not an operating body such as a pen or a finger is close to a position of several millimeters on the upper surface of the touch panel (with hover). In the case of a capacitive touch panel, it is determined that there is a hover when a capacity exceeding a threshold for hover detection with a capacity lower than a threshold for determining that the touch is made.

  If there is hover detection, the process advances to step S807 to determine whether or not another point touchdown (ie, second point touchdown) has been performed. If another point of touchdown has been made, the process advances to step S704 to display an enlarged image feed guide. In the present embodiment, it is assumed that whether or not the second touch-down has been performed is performed within a predetermined time.

  If the other point is not touched down in S807, it is determined in S809 whether or not it is touched up. When the touch-up is performed (that is, when a touch-off state in which no point is touched), the process proceeds to S701 and waits for input. If the touch-up is not performed in S809, the process returns to S803 to determine again whether or not the hover is detected.

If there is no hover detection in step S803, the process proceeds to step S805, and the enlarged position in the image is moved according to the amount of movement that has been touch-moved. Thereafter, the enlarged center coordinates after the movement are stored in the memory 32 in S806, and the process proceeds to S807.
As described above, even when there is a touch move, if the hover is detected (Yes in S803), the enlargement position is not moved (the process in S805). This is because there is a possibility that the reason for the hover detection is in the middle of the approach of the finger for touching the second point in order to instruct the enlarged image feed.

  If the enlargement position changes in the middle of a touch move instruction at two points, the enlargement position will deviate from the state before the touch move at two points is executed and the enlarged image feed. . However, when the hover is detected, the enlargement position is not moved, that is, the enlargement position is not moved unless it is a clear single touch touch move. It is possible to prevent the enlargement position from being shifted unintentionally.

If it is determined in S802 that the touch move has not been performed, the process proceeds to S804, and it is determined whether or not another point of touchdown (that is, the second point of touchdown) has been performed. If it is touched down, the process advances to step S704 to display an enlarged image feed guide.
If it is determined in step S804 that another touchdown has not been performed, the process proceeds to step S810 and it is determined whether or not the touch-on has been performed for a predetermined time without being touch-moved (that is, whether there has been a long touch with a single touch). Or not).

If it has been touched on for a predetermined time or more, the process proceeds to S811, and if not, the process returns to S802.
In S811, a guide indicating an operation method for enlarging an image by a touch operation after a long touch is displayed. In this case, after the touch-on is continued for a predetermined time or longer (that is, after a long touch), the guide displays that the image can be switched while being enlarged by touch moving in the horizontal direction (right or left).

After the guide is displayed, input is waited until a touch move is performed in S812, and if the touch move is performed, the process proceeds to S813.
In step S813, it is determined whether the operated touch move is in the horizontal direction. If it is in the horizontal direction, the process proceeds to S814. If it is not in the horizontal direction, the process proceeds to S818, and after other touch processing is performed, the process proceeds to S701 to wait for input.

  In S814, it is determined whether or not the movement of the touch move is in the positive direction. If it is the forward direction, the image number N is incremented by 1 in S815, and if it is not the forward direction, the image number N is returned to the previous one in S816. Thereafter, the process proceeds to S817, and after executing the enlarged image feed process, the process returns to S701 and waits for input.

Details of the enlarged image feed process in S721 will be described with reference to the flowchart of FIG. This process is realized by developing a program recorded in the nonvolatile memory 56 in the system memory 52 and executing it by the system control unit 50.
If an enlarged image feed is instructed, the Nth image among the images recorded on the recording medium 200 is read into the memory 32 in S901. Thereafter, the enlargement center coordinates and enlargement magnification stored in the memory 32 are read in S902, and the image is enlarged and displayed in S903 with the center coordinates and enlargement magnification read in S902.

  Here, in the processing of S802 to S807, if there is a one-point touch move in a state where hover detection is not performed, the enlargement position movement is executed in S805. After that, when the second touch-down is detected, the process proceeds to S704, where the enlarged image feed is received by touch-moving the two touch-down points in the same direction.

  In this case, even if an enlargement image feed is instructed thereafter, the enlargement position may be moved unintentionally by the operator in S805, and the enlargement position may be shifted between the images before and after the enlargement image feed. There is. As a solution to this, it is conceivable to determine whether the touch move has been performed for a predetermined distance or more or a predetermined time or more before executing the enlargement position movement process in S805. In this case, since it can be determined that the operator is about to move the enlargement position explicitly, the enlarged image can be sent without the enlargement position being moved unintentionally.

(Other embodiments)
Although the present invention has been described in detail based on the preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms without departing from the gist of the present invention are also included in the present invention. included. Furthermore, each embodiment mentioned above only shows one embodiment of this invention, and it is also possible to combine each embodiment suitably.

  In the above-described embodiment, the case where the present invention is applied to a digital camera has been described as an example. However, this is not limited to this example, and an enlarged image feed can be realized by a two-point simultaneous touch move operation. Any display control device that can be used is applicable.

  For example, in a smartphone, a tablet PC, or the like, it is possible to intuitively send an image by touch operation without moving the enlargement position during enlargement reproduction. Therefore, the present invention is applicable to a personal computer, a PDA, a mobile phone terminal, a portable image viewer, a printer device including a display, a digital photo frame, a music player, a game machine, an electronic book reader, and the like.

  The present invention can also be realized by executing the following processing. That is, software (computer program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various computer-readable storage media. Then, the computer (or CPU, MPU, etc.) of the system or apparatus reads out and executes the program.

22 Imaging unit 28 Display unit 50 System control unit 52 System memory 53 System timer 54 Communication unit 56 Non-volatile memory 60 Mode switch 61 Shutter button 70 Operation unit 100 Digital camera 101 Shutter 102 Barrier 103 Shooting lens

Claims (16)

Touch detection means for detecting a touch operation on the operation surface;
An enlarged display means for enlarging and displaying a partial range of the image displayed in the display area of the display means;
When the first image is enlarged and displayed on the display means, the touch position of the two points is moved in the same predetermined direction in a state where the two touch points are touched on the operation surface. A display control apparatus comprising: control means for controlling the display of the display means to perform enlarged image sending for switching from enlarged display of the first image to enlarged display of the second image.   When the first image is enlarged and displayed on the display unit, the touch position of the two points is moved in the same direction according to the touch of the two points on the operation surface. The display control apparatus according to claim 1, further comprising display control means for controlling to display a first guide indicating that the images can be switched without change.   The display control means controls to display the first guide when there is a second touch within a predetermined time after the first touch on the operation surface, and 3. The control according to claim 2, wherein the first guide is not displayed when there is a second touch after a predetermined time has elapsed since the first touch. 4. Display control device. The control means includes
In response to the touch of the second point within the predetermined time after the touch of the first point on the operation surface and the touch position of the two points moved in the same predetermined direction from the state, Controlling the display of the display means to perform the enlarged image feed for switching from the enlarged display of the first image to the enlarged display of the second image;
In response to the second touch after the predetermined time has elapsed since the first touch on the operation surface, and the touch position of the two points moved in the same predetermined direction from that state. 4. The display control apparatus according to claim 3, wherein the enlarged image feeding is not performed.   The display control means responds to the fact that the predetermined time has passed without touching the first point and without touching the second point after the touch of the first point on the operation surface. 5. The display control according to claim 3, wherein control is performed so as to display a second guide indicating that the image can be switched while being enlarged by moving the touch position of the first point. apparatus.   When the first image is magnified and displayed on the display means, the control means has two points without releasing the first touch after the first touch on the operation surface. After the predetermined time has elapsed without touching the eyes, control is performed to perform the enlarged image feeding in response to the touch position of the first point moving in the predetermined direction. Item 6. The display control device according to Item 5.   The display control apparatus according to claim 1, wherein the operation surface is a display surface of the display unit.   The display control apparatus according to claim 1, wherein the predetermined direction is a left-right direction with respect to a direction in which the first image is displayed.   When the first image is enlarged and displayed on the display means, the control means is in a state when the second touch is made within a predetermined time after the first touch is made. 9. The control according to claim 1, wherein control is performed so as to change an enlargement magnification of the first image in accordance with movement of two touch positions in different directions from each other. Display control device.   The enlarged image feed is a process of switching from an enlarged display of the first image to an enlarged display of the second image in a display range based on the display range of the first image. Item 10. The display control device according to any one of Items 1 to 9. It further has a magnification instruction means for instructing to change the magnification of the image,
The enlarged image feed is a process of switching from the enlarged display of the first image to the enlarged display of the second image based on the enlargement magnification instructed by the magnification instruction means for the first image. The display control device according to claim 1, wherein the display control device is a display control device.   The display control device is any one of a digital camera, a mobile phone terminal, a portable image viewer, a printer device including a display, a digital photo frame, a music player, a game machine, and an electronic book reader. Item 12. The display control device according to any one of Items 1 to 11.   The display control apparatus according to claim 1, wherein the display control apparatus is a smartphone or a tablet PC. A touch detection step for detecting a touch operation on the operation surface;
An enlarged display step for enlarging and displaying a partial range of the image displayed in the display area of the display means;
When the first image is enlarged and displayed on the display unit, the two touch positions are moved in the same predetermined direction in a state where the two touch points are touched on the operation surface. And a control step for controlling the display means to perform enlarged image feeding for switching the enlarged display of the first image to the enlarged display of the second image. Method.   The program for functioning a computer as each means of the display control apparatus as described in any one of Claims 1 thru | or 13.   A computer-readable storage medium storing a program for causing a computer to function as each unit of the display control device according to any one of claims 1 to 13.

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