JP2011215800A - Image processing apparatus, and method of controlling the same - Google Patents

Abstract

A desired correction amount can be set even when a specific position is around the edge of a display area.
When the position touched down by the first point by the user is in the central area of the display screen, the position of the first touchdown is input as a position to be image-processed and a parameter value for performing the retouching process. If the first touch-down position is an edge peripheral area, the first touch-down position is set as a position to be image-processed, and the first point A second touch-down position that is performed while touching the eyes is set as a reference position for inputting parameters. Then, by acquiring a parameter value according to the movement amount of the second point and correcting the image at the position where the image processing should be performed by reflecting the parameter value, the position where the image processing should be performed is determined. The correction amount can be set smoothly even at the periphery of the screen edge of the display area.
[Selection] Figure 1

Description

  The present invention relates to an image processing apparatus and a control method for the image processing apparatus, and more particularly to a technique suitable for use in setting a parameter related to a specific position of a display image.

  Conventionally, for example, Patent Literature 1 proposes a display control device that sets parameters for a specific position on an image displayed by an image display device. The display control device proposed in Patent Document 1 displays an enlargement / reduction input device such as a mouse wheel button or jog dial on a display device. Then, in response to an instruction to enlarge or reduce the display area displayed on the display device, a predetermined coordinate in the display area designated by a pointing device such as a mouse, a pen input device, or a touch panel is used as a reference point in the virtual screen. The display area that is set to 拡 大 is controlled to be enlarged or reduced.

JP 2005-100199 A

However, in Patent Document 1 described above, a parameter setting technique regarding a specific position on an image displayed by an image display device is disclosed, but this setting technique does not depend on the position. That is, the parameter setting method is the same regardless of the specific position on the image, and no special parameter setting technique is disclosed regarding the case where the specific position on the image is around the edge of the display area.
An object of the present invention is to make it possible to smoothly set a desired correction amount for the peripheral portion of the screen in view of the above-described problems.

  An image processing apparatus according to the present invention is an image processing apparatus that performs a retouch process on an arbitrary position in an image displayed on a display screen using a touch panel capable of detecting a plurality of touchdown positions. Touch input detection means for detecting a touchdown input to the touch panel, and a touchdown position detection means for detecting whether the position of the first touchdown input detected by the touch input detection means is an edge peripheral area or a central area of the display screen And, when the touchdown position detected by the touchdown position detection means is a central region, the position of the first touchdown input, the position to be subjected to image processing, and the parameter for performing the retouch processing A touchdown position detected by the touchdown position detection means In some cases, the position of the first touch-down input is set as a position where image processing is to be performed, and the position of the second touch-down input performed while being touched on is set as a reference position for inputting parameters. An adjustment axis setting means, a parameter acquisition means for acquiring a parameter according to the movement amount of the first point or the second point, and a position of the position where the image processing should be performed by reflecting the parameter acquired by the parameter acquisition means Image correction means for correcting the image.

  According to the present invention, regarding the correction amount setting relating to the specific position of the display image, the correction amount can be set smoothly even if the specific position is around the edge of the display area.

It is a block diagram which shows the structural example of an image processing apparatus. It is a flowchart explaining the operation | movement procedure of an image processing apparatus. It is a figure which shows the example which is displaying the image on a display screen. It is a figure explaining the reference position which inputs the position which should perform image processing, and the amount of correction.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
<Hardware>
FIG. 1 is a block diagram showing a configuration of an example of an image processing apparatus 100 to which each embodiment of the present invention can be applied.
As shown in FIG. 1, the image processing apparatus 100 can be configured using a general personal computer (hereinafter, referred to as a PC).
In FIG. 1, a CPU 101, a hard disk (HD) 102, a memory 103, a display control unit 104, an input unit 105, a drive device 106, and a communication I / F 107 are connected to an internal bus 111. Each unit connected to the internal bus 111 can exchange data with each other via the internal bus 111.

  The hard disk 102 stores image data, other data, various programs for operating the CPU 101, and the like. The memory 103 is composed of a RAM, for example. The CPU 101 as a display control unit, a change unit, and a calculation unit controls each unit of the image processing apparatus 100 using the memory 103 as a work memory, for example, according to a program stored in the hard disk 102. The program for operating the CPU 101 is not limited to being stored in the hard disk 102 but may be stored in advance in a ROM (not shown), for example.

  The input unit 105 receives a user operation, generates a control signal corresponding to the operation content, and supplies the control signal to the CPU 101. For example, the input unit 105 includes character information input devices such as a keyboard and pointing devices such as a mouse and a touch panel as input devices that accept user operations. The touch panel is an input device that outputs coordinate information according to a position touched with respect to, for example, a planar input unit. In this embodiment, a retouch process can be performed on an arbitrary position in an image displayed on the display screen using a touch panel capable of detecting a plurality of touchdown positions.

  The CPU 101 controls each unit of the image processing apparatus 100 according to a program based on a control signal generated and supplied by the input unit 105 in response to a user operation performed on the input device. Thereby, it is possible to cause the image processing apparatus 100 to perform an operation according to the user operation.

  The display control unit 104 outputs a display signal for displaying an image on the display 110. For example, a display control signal generated by the CPU 101 according to a program is supplied to the display control unit 104. The display control unit 104 generates a display signal based on the display control signal and outputs the display signal to the display 110. For example, the display control unit 104 causes the display 110 to display a GUI screen constituting a GUI (Graphical User Interface) based on a display control signal generated by the CPU 101.

  When a touch panel is used as the input unit 105, the input unit 105 and the display 110 can be integrally configured. For example, the touch panel is configured such that the light transmittance does not hinder the display of the display 110 and is attached to the upper layer of the display surface of the display 110. Then, the input coordinates on the touch panel are associated with the display coordinates on the display 110. Thereby, it is possible to configure the GUI as if the user can directly operate the screen displayed on the display 110.

  The drive device 106 can be loaded with an external storage medium 108 such as a CD or DVD, and reads data from the loaded external storage medium 108 or writes data to the external storage medium 108 based on the control of the CPU 101. . The external storage medium 108 to which the drive device 106 can be attached is not limited to a disk recording medium such as a CD or a DVD, and a non-volatile semiconductor memory such as a memory card may be attached to the drive device 106, for example. A communication interface (I / F) 107 performs communication with a network 120 such as a LAN or the Internet based on the control of the CPU 101.

  When the input unit 105 is a touch panel, the CPU 101 can detect the following operations on the touch panel. Touching the touch panel with a finger or a pen (hereinafter referred to as touchdown). The touch panel is touched with a finger or a pen (hereinafter referred to as touch-on). The touch panel is moved while being touched with a finger or a pen (hereinafter referred to as a move). The finger or pen that was touching the touch panel is released (hereinafter referred to as touch-up).

  A state where nothing is touched on the touch panel (hereinafter referred to as touch-off). These operations and the position coordinates where the finger or pen touches the touch panel are notified to the CPU 101 through the internal bus 111, and the CPU 101 determines what operation has been performed on the touch panel based on the notified information. . Regarding the 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.

  Further, it is assumed that a stroke is drawn when touch-up is performed on the touch panel through a certain 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. If it is detected that the moving 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 the movement is performed at a predetermined distance or more and less than a predetermined speed, it is determined that the drag has been performed. The touch panel may be any of various types of touch panels such as a resistive film method, a capacitance method, a surface acoustic wave method, an infrared method, an electromagnetic induction method, an image recognition method, and an optical sensor method. .

  Next, an operation procedure of the image processing apparatus 100 of the present embodiment will be described with reference to the flowchart of FIG. 2 is executed by the CPU 101 after a control program stored in the hard disk 102 or the like of the image processing apparatus 100 is loaded into the memory 103. When the flowchart of FIG. 2 is started, the CPU 101 displays an image 302 on the display screen 301 of the display 110 via the display control unit 104 as shown in FIG.

  When the process is started, in S201, the CPU 101 performs a touchdown detection process for detecting whether or not the user has performed the first touchdown on the touch panel (input unit 105). As a result of this detection process, if no touch-down input has been performed, the process enters a standby state in S201, and if it has been performed, the process proceeds to S202.

  In S202, the CPU 101 sets the first touchdown position input via the input unit 105 as the first input position. Then, the set first input position is stored in the memory 103. Next, proceeding to S203, the CPU 101 performs a touchdown position detection process for determining whether or not the set first input position is around the edge.

  In this determination, as shown in FIG. 3B, if the edge peripheral region is outside the preset edge peripheral determination boundary 303, the first input position is determined to be the peripheral edge, otherwise, The first input position is set to be determined not to be around the edge. That is, the display screen 301 is divided into three parts from the center to the outside. That is, if it is within 2/3 from the center, it is the central region, and if it is 2/3 or more from the center, it is the edge peripheral position. In addition, the edge periphery judgment of the specific position in this embodiment is not limited to the reference | standard shown above. As a result of this determination, if it is not around the edge, the process proceeds to S204.

  In S204, the CPU 101 performs an adjustment axis setting process for setting the position of the adjustment axis in the X-axis direction and the Y-axis direction based on the first touchdown position. In step S205, the display control unit 104 displays the adjustment axis set in step S204 on the display 110 as illustrated in FIG. In the present embodiment, an example is shown in which the X-axis direction is displayed as a hue and the Y-axis direction is displayed as an adjustment axis 401 in which saturation can be set. When setting the image display magnification, an adjustment axis for setting the image display magnification is displayed. When setting the rotation angle of the image, an adjustment axis for setting the image rotation angle is displayed. .

  Next, in S206, the CPU 101 determines whether there has been a move from the first input position. If the result of this determination is that there is a move, the process advances to step S <b> 207, and the CPU 101 performs a correction amount acquisition process for acquiring the first point position movement amount as a correction amount, and stores the acquired correction amount in the memory 103. If the result of determination in S206 is that there is no move, the process proceeds to S210.

  Next, in step S <b> 208, the CPU 101 performs parameter acquisition processing according to the movement amount of the first input position acquired in S <b> 207, sets a parameter related to the first input position, and stores the parameter in the memory 103. In the present embodiment, as described above, the parameters relate to color correction, and parameters for saturation and hue correction amounts are set.

In step S <b> 209, the CPU 101 performs an image correction process for correcting the parameter set in step S <b> 208 on the image, and displays the image that has been subjected to the image correction process on the display 110 via the display control unit 104. As a result, the color correction of the peripheral color gamut of the color at the first input position on the image is performed according to the parameters relating to the color correction (saturation amount and hue correction amount).
Next, in S210, the CPU 101 determines whether or not there is a touch-up from the first input position. If there is no touch-up as a result of this determination, the process returns to S206 and the above-described processing is performed. If there is a touch-up, the process proceeds to S219.

  Next, processing when the set first input position is around the edge as a result of the determination in S203 will be described. As described above, when the first input position is around the edge, setting the position as the reference position for inputting the parameter value narrows the allowable input range of the parameter value in the direction toward the screen edge. It becomes impossible to input a desired parameter value. In the present embodiment, processing as described below is performed in order to eliminate such inconvenience.

  In other words, in S211, the CPU 101 executes a touchdown detection process for determining whether or not the user has performed the second touchdown on the touch panel in a state where the first touchdown is maintained. If the second touch-down is not performed as a result of the determination, the process proceeds to S218 to determine whether the first touch-up is performed. If the second touchdown is performed, the process proceeds to S212. FIG. 4B shows a state where the second touchdown is performed. As shown in FIG. 4B, even when the first point touchdown for the retouch process is an edge portion, the desired correction amount can be obtained by performing the second point touchdown at the substantially central portion of the display 110. Can be set.

  In S212, the CPU 101 performs an adjustment axis setting process for setting the position of the adjustment axis based on the second touchdown position. In this setting, a parameter axis setting process for adjusting the X-axis direction and the Y-axis direction around the second point touchdown position is performed. Next, in S213, the display control unit 104 displays the set adjustment axis on the display 110 as shown in FIG. As described above, in the present embodiment, the adjustment axis 401 capable of setting the hue in the X-axis direction and the saturation in the Y-axis direction is displayed as the adjustment axis.

  Next, in S214, the CPU 101 determines whether or not it is a second point move. If the result of this determination is that it is not a move, the process proceeds to S218. If it is a move, the process proceeds to S215. In step S <b> 215, the CPU 101 performs a correction amount acquisition process for acquiring the second point position movement amount as a correction amount, and stores the acquired correction amount in the memory 103.

  Next, proceeding to S <b> 216, the CPU 101 performs parameter acquisition processing according to the movement amount of the second point acquired in S <b> 215, sets parameters relating to the first input position, and stores them in the memory 103. In step S217, the CPU 101 performs image correction processing that reflects the parameters set in step S216 on the image, and displays the image corrected image on the display 110 via the display control unit 104. As a result, the color correction of the peripheral color gamut of the color at the first input position on the image is performed according to the color correction parameters (saturation amount and hue correction amount), so the first touchdown position is the peripheral edge. Even in such a case, a desired correction amount can be set.

  Next, in S218, the CPU 101 determines whether or not the first point touch-up has been performed, that is, whether or not the touch on the position where image processing is to be performed has ended. If the first touch-up is performed as a result of this determination, the process advances to step S219, where the CPU 101 performs parameter determination processing, and then performs end processing. On the other hand, if it is determined in S218 that the first point touch-up has not been performed, the process proceeds to S220, and it is determined whether or not the second point touch-on is performed. If the second touch-on is detected as a result of this determination, the process returns to S214. If the second touch-on is not detected, the process returns to S211 and performs the above-described processing. In the above description, the processes of S205 and S213 for displaying the adjustment axis are not necessarily performed. Since the adjustment axis is not displayed, there are few things that hinder the confirmation of the image, so that it is possible to obtain an effect that the effectiveness of the image processing during parameter adjustment can be confirmed more easily. In addition to saturation and hue, brightness may be corrected.

Note that the control of the image processing apparatus 100 may be performed by one hardware, or the entire apparatus may be controlled by a plurality of hardware sharing the processing.
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.

  Further, in the above-described embodiment, the case where the present invention is applied to the display control apparatus has been described as an example, but this is not limited to this example. For example, the present invention can be applied to a personal computer, a PDA, a mobile phone terminal, a portable image viewer, a display for selecting and confirming a print image provided in a printer, a digital photo frame, and the like. That is, any image processing apparatus capable of controlling image parameters can be applied.

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

DESCRIPTION OF SYMBOLS 100 Image processing apparatus, 101 CPU, 102 Hard disk (HD), 103 Memory, 104 Display control part, 105 Input part, 106 Drive apparatus, 107 Communication I / F, 108 External storage medium, 110 Display, 111 Internal bus, 120 Network

Claims (9)

An image processing apparatus that performs a retouch process on an arbitrary position in an image displayed on a display screen using a touch panel capable of detecting a plurality of touchdown positions,
Touchdown detection means for detecting a touchdown input to the touch panel;
Touchdown position detection means for detecting whether the position of the first touchdown input detected by the touchdown detection means is an edge peripheral area or a central area of the display screen;
When the touchdown position detected by the touchdown position detection means is a central region, the position of the first touchdown input is used as a reference position for inputting a position to be subjected to image processing and a parameter for performing the retouch processing. If the touchdown position detected by the touchdown position detection means is an edge peripheral area, the position of the first touchdown input is set as a position to be subjected to image processing, and the touch-on is kept on Adjustment axis setting means for setting the position of the second touchdown input to be performed as a reference position for inputting parameters;
Parameter acquisition means for acquiring a parameter according to the movement amount of the first point or the second point;
An image processing apparatus comprising: an image correcting unit that corrects an image at a position to be subjected to the image processing by reflecting the parameter acquired by the parameter acquiring unit.   2. The image processing apparatus according to claim 1, further comprising display control means for displaying an adjustment axis capable of setting a parameter in each of an X-axis direction and a Y-axis direction at a reference position for inputting the parameter.   The adjustment axis setting means divides the display screen from the center to the outside into three, and if the touchdown position detected by the touchdown position detection means is within 2/3 from the center, the adjustment axis setting means is set as a central region. The image processing apparatus according to claim 1, wherein the edge peripheral position is 2/3 or more.   The image processing apparatus according to claim 1, further comprising: a parameter determination unit that determines a parameter acquired by the parameter acquisition unit when the first point is touched up. .   The image processing apparatus according to claim 1, wherein the parameter includes one of a parameter of hue, saturation, and brightness.   The image processing apparatus according to claim 1, wherein the parameters include any one of an image display magnification and a rotation angle. A control method of an image processing apparatus that performs a retouch process on an arbitrary position in an image displayed on a display screen using a touch panel capable of detecting a plurality of touchdown positions,
A touchdown detection step of detecting a touchdown input to the touch panel;
A touchdown position detecting step of detecting whether the position of the first touchdown input detected in the touchdown detecting step is an edge peripheral region or a central region of the display screen;
When the touch-down position detected in the touch-down position detection step is a central region, the position of the first touch-down input is used as a reference position for inputting a position to be subjected to image processing and a parameter for performing retouch processing. If the touchdown position detected in the touchdown position detection step is an edge peripheral area, the position of the first touchdown input is set as a position to be subjected to image processing, and the touch is kept on An adjustment axis setting step for setting the position of the second touchdown input to be performed as a reference position for inputting parameters;
A parameter acquisition step of acquiring a parameter according to the movement amount of the first point or the second point;
An image correction step of correcting an image at a position to be subjected to the image processing by reflecting the parameter acquired in the parameter acquisition step. A program that causes a computer to execute each step of a control method of an image processing apparatus that performs a retouch process on an arbitrary position in an image displayed on a display screen using a touch panel capable of detecting a plurality of touchdown positions. And
A touchdown detection step of detecting a touchdown input to the touch panel;
A touchdown position detecting step of detecting whether the position of the first touchdown input detected in the touchdown detecting step is an edge peripheral region or a central region of the display screen;
When the touch-down position detected in the touch-down position detection step is a central region, the position of the first touch-down input is used as a reference position for inputting a position to be subjected to image processing and a parameter for performing retouch processing. If the touchdown position detected in the touchdown position detection step is an edge peripheral area, the position of the first touchdown input is set as a position to be subjected to image processing, and the touch is kept on An adjustment axis setting step for setting the position of the second touchdown input to be performed as a reference position for inputting parameters;
A parameter acquisition step of acquiring a parameter according to the movement amount of the first point or the second point;
A program for causing a computer to execute an image correction step of correcting an image at a position to be subjected to the image processing by reflecting the parameter acquired in the parameter acquisition step.   9. A computer-readable recording medium on which the program according to claim 8 is recorded.

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