KR20080077830A - Method for obtaining partial image of portable terminal having touch screen - Google Patents

Abstract

A method for obtaining a partial image in a mobile terminal equipped with a touch screen is provided to obtain the partial image easily from a cropped image by performing an integrated mode in the mobile terminal, and execute a function easily by using the touch screen when the integrated mode is executed in the mobile terminal. A cropping mark is displayed in a predetermined area of a displayed image when a partial image obtaining request is generated(215). The cropping mark is moved to a position according to dragging and dropping a touch when the touch is detected in a first area of the cropping mark(225). A partial image corresponding to the inside of the cropping marks is displayed when cropping is requested(249). A size of the cropping mark is changed by corresponding to the dragged and dropped touch position when the touch is detected in the partial image. The first area is the inner area of the cropping marks and the second area is an edge of the cropping mark.

Description

A partial image acquisition method of a mobile terminal having a touch screen {METHOD FOR OBTAINING PARTIAL IMAGE OF PORTABLE TERMINAL HAVING TOUCH SCREEN}

1 is a block diagram showing a schematic configuration of a portable terminal according to the present invention;

2 is a flowchart showing a partial image acquisition procedure according to the first embodiment of the present invention;

3 is a flowchart illustrating a partial image size change procedure before partial image acquisition in FIG. 2;

4A to 4K are views for explaining FIGS. 2 and 3;

5 is a flowchart illustrating a partial image acquisition procedure according to a second embodiment of the present invention; and

FIG. 6 is a flowchart illustrating a procedure of changing a partial image size before obtaining partial images in FIG. 5.

The present invention relates to an image editing method of a mobile terminal, and more particularly, to a method of obtaining a partial image from a specific image in a mobile terminal having a touch screen.

In general, a portable terminal performs a complex function by adding various functions in addition to a communication function. That is, the current portable terminal has been developed in the form of a composite terminal with the addition of various multimedia functions. At this time, additional functions performed in the communication terminal include a camera, digital multimedia broadcasting (DMB), and a Bluetooth communication function. The portable terminal can take an image using a camera function or receive an image from the outside using various communication functions.

However, in order to edit an image in the portable terminal, the portable terminal must perform various modes. In particular, in order to acquire a partial image from a specific image, the portable terminal may specify a mode for specifying a location of an area to be acquired from an image, a mode for specifying a size of an area to be acquired from an image, and a mode for specifying a size of a partial image to be acquired At least one of the modes must be performed. At this time, when requesting to perform a plurality of modes, the portable terminal performs each mode separately. In addition, the user of the portable terminal must perform a plurality of key operations to execute the corresponding function in each mode. As a result, it is not easy for a user to acquire a partial image in the mobile terminal.

Accordingly, an object of the present invention is to provide a method for easily obtaining a partial image by performing an integrated mode in a portable terminal.

Another object of the present invention is to provide a method of obtaining a partial image that can easily execute a corresponding function using a touch screen when performing an integrated mode in a portable terminal.

According to an aspect of the present invention, there is provided a method of obtaining a partial image of a mobile terminal having a touch screen, the method comprising: displaying a crop mark set in a predetermined region of a display image when a partial image acquisition request is generated; When a touch is detected in one area, the method includes moving the crop mark to a position where the touch is dragged and dropped, and displaying a partial image corresponding to an internal area of the crop mark when a crop is requested. do.

In addition, a partial image acquisition method of a mobile terminal having a touch screen according to the present invention for achieving the above object, the process of displaying a crop mark set in a predetermined region of the display image, when the partial image acquisition request occurs, and And when the touch is detected in the first area, moving the crop mark to a position where another touch is detected, and displaying a partial image corresponding to an internal area of the crop mark when a crop is requested. .

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

In the following description, the term "image" refers to an image photographed using a camera function in a portable terminal, an image received from the outside using various communication functions, or an image stored when the portable terminal is manufactured. The term "partial image" means some area obtained from an image. The term " crop mark " means a mark for distinguishing an area to be obtained from an image. In this case, the crop marks may have various shapes, for example, polygons, ellipses, and shapes input by a user. That is, the image includes an inner region of the crop mark and an outer region of the crop mark, which are divided by the boundary of the crop mark. And the internal area of the crop mark represents the partial image obtainable from the image. The term "touch" refers to the act of a user touching a finger on a touch screen of a portable terminal. The term " drag " refers to the act of a user moving a finger on a touch screen of a mobile terminal, i.e., touching a finger. The term " drop " refers to the act of a user touching a touch screen of the mobile terminal, i.e., removing a finger from the touch screen.

1 is a block diagram illustrating a schematic configuration of a mobile terminal capable of obtaining a partial image using a touch screen according to an embodiment of the present invention. In the embodiment of the present invention, it is assumed that the mobile terminal is a mobile phone.

Referring to FIG. 1, the mobile terminal 100 includes a wireless communication unit 110, a camera unit 120, an image processor 130, a touch screen 140, a storage unit 150, a controller 160, and an audio processor ( 170).

The wireless communication unit 110 performs a wireless communication function of the mobile terminal 100. The wireless communication unit 110 includes an RF transmitter for up-converting and amplifying a frequency of a transmitted signal, and an RF receiver for amplifying a received signal and down-converting a frequency of the received signal.

The camera unit 120 captures image data, and includes a camera sensor that converts the photographed optical signal into an electrical signal, and a signal processor that converts the analog image signal captured by the camera sensor into digital data. Here, it is assumed that the camera sensor is a CCD sensor, and the signal processor may be implemented by a digital signal processor (DSP). At this time, the camera sensor and the signal processing unit may be implemented in one body, or may be implemented separately.

The image processor 130 performs a function of generating screen data for displaying an image signal output from the camera unit 120. The image processor 130 processes the image signal output from the camera unit 120 in units of frames, and outputs the frame image data according to the characteristics and the size of the display unit 141. In addition, the image processing unit 130 includes an image codec and performs a function of compressing the frame image data displayed on the display unit 141 in a set manner or restoring the compressed frame image data to the original frame image data. The image codec may be a JPEG codec, an MPEG4 codec, a wavelet codec, or the like.

The touch screen 140 includes a display unit 141 and a touch sensor 143. The display unit 141 displays an image signal output from the image processor 130 on a screen, and displays user data output from the controller 160. In this case, the display unit 141 is implemented as an LCD, and includes an LCD controller, a memory capable of storing display data, and an LCD display device. The touch sensor 143 is mounted on the display unit 141, and includes a touch detector 144 and a signal converter 146. When a touch occurs, the touch detector 144 detects a change in physical quantity, for example, a resistance, a capacitance, and the like, and detects the touch. In addition, the signal converter 146 converts a change in physical quantity according to the touch into a touch signal.

The storage unit 150 is composed of a program memory and a data memory. The program memory stores an operation program of the mobile terminal 100 and a program for acquiring a partial image using the touch screen 140 according to an embodiment of the present invention. The data memory stores data generated during program execution. In addition, the data memory may store various images and partial images obtained from a specific image.

The controller 160 performs a function of controlling the overall operation of the mobile terminal 100, and includes a data processor 161, a movement direction tracking unit 163, and a crop execution unit 165.

The data processor 161 includes a transmitter for encoding and modulating a transmitted signal and a receiver for demodulating and decoding a received signal. The data processor 161 may include a modem and a codec.

The movement direction tracker 163 receives a touch signal from the signal converter 146. As a result, when a touch occurs, the movement direction tracking unit 163 detects the touch position from the received touch signal. When the drag occurs, the moving direction tracking unit 163 detects the drag direction from the change in the touch position. In addition, when the drop occurs, the movement direction tracking unit 163 detects the drop position.

The crop executing unit 165 performs a function of obtaining a partial image from a specific image. That is, the crop execution unit 165 displays a crop mark set when a partial image acquisition request is made according to an exemplary embodiment of the present invention. The crop execution unit 165 analyzes the touch position detected by the movement direction tracking unit 163 to control the size of the crop mark or the partial image to be acquired. That is, the crop execution unit 165 may move the crop mark, change the size of the crop mark, or change the size of the partial image to be obtained.

The audio processor 170 reproduces the received audio signal output from the audio codec of the data processor 161 and generates the received audio signal through the speaker SPK, or transmits the transmitted audio signal generated from the microphone MIC to the data processor 161. Sends the audio codec.

2 is a flowchart illustrating a partial image acquisition procedure according to the first embodiment of the present invention. 4A to 4I are diagrams illustrating examples of screens displayed when a partial image is acquired according to the first embodiment of the present invention. In this case, FIG. 4A illustrates a screen on which a set crop mark is displayed. FIG. 4B illustrates a screen displayed when a touch occurs in a crop mark internal area. FIG. 4C illustrates a screen on which a crop mark moves as a touch is dragged. 4D illustrates a screen displayed when a drop of a touch occurs, FIG. 4E illustrates a screen displayed when a touch occurs on a crop mark boundary, and FIG. 4F illustrates a crop mark as a touch is dragged. FIG. 4G illustrates a screen displayed when a drop of a touch occurs, FIG. 4H illustrates a screen displayed when a crop request occurs, and FIG. 4I illustrates a screen displaying a partial image. It is shown.

Referring to FIG. 2, the partial image acquisition procedure of the present invention starts from the control unit 160 displaying a specific image (211). Thereafter, when a request for acquiring a partial image occurs, the controller 160 detects this (213), and displays a crop mark set in a predetermined region of the displayed image as shown in FIG. 4A (215). At this time, the position, size, shape, etc. of the crop marks to be displayed may be set by default in advance or may be set by the user of the mobile terminal 100. The request for obtaining the partial image may be input by accessing a lower menu from a higher menu or by a user touching a portion of the touch screen 140. In the latter case, a crop mark may be displayed at a position touched by the user or a crop mark may be displayed at a default position irrespective of the touch area.

Subsequently, when a touch is generated on the touch screen 140, the controller 160 detects it (217) and determines whether the touch has occurred in an internal region of the crop mark, as illustrated in FIG. 4B (219). ). At this time, the controller 160 detects the position where the touch occurred, and then analyzes the detected touch position to determine whether the touch has occurred in the internal region of the crop mark. When the drag of the touch occurs from the inner region of the crop mark, the controller 160 detects this (221) and tracks the direction in which the touch is dragged (223). In addition, as illustrated in FIG. 4C, the controller 160 moves the crop mark displayed in a predetermined region of the image along the direction in which the touch is dragged (225).

Next, when a drop of a touch occurs on the touch screen 140, the controller 160 detects this (227) and displays a crop mark at a position where the touch is dropped in a predetermined region of the image as illustrated in FIG. 4D. (229). That is, the controller 160 repeats the previous processes 223 to 227 until the touch generated in the internal region of the crop mark is dropped. That is, when it is determined that the touch is generated in the internal area of the crop mark, the controller 160 may change the position of the crop mark along the drag direction of the touch generated on the touch screen 140. When another touch occurs on the touch screen 140, the controller 160 detects this (231) and determines whether the touch requires cropping (233).

On the other hand, if it is determined that the touch has not occurred in the internal region of the crop mark as a result of analyzing the detected touch position, the controller 160 determines whether the touch has occurred at the boundary of the crop mark as shown in FIG. 4E. (235). When the drag of the touch occurs from the boundary of the crop mark, the controller 160 detects this (237) and tracks the direction in which the touch is dragged (239). In addition, as shown in FIG. 4F, the controller 160 changes the size of the crop mark displayed in the predetermined region of the image along the direction in which the touch is dragged (241). In this case, the size of the crop mark may be enlarged or reduced according to the direction in which the touch is dragged.

Next, when a touch drop occurs on the touch screen 140, the controller 160 detects this (243), and displays a crop mark at a current size in a predetermined area of the image as illustrated in FIG. 4G ( 245). At this time, the controller 160 repeats the previous processes 239 to 243 until the touch generated at the boundary of the crop mark is dropped. That is, when it is determined that the touch occurs at the boundary of the crop mark, the controller 160 may change the size of the crop mark along the drag direction of the touch generated on the touch screen 140. When another touch occurs on the touch screen 140, the controller 160 detects this (247) and determines whether the touch requires cropping (233). At this time, if it is determined that another touch generated on the touch screen 140 does not require crop, the controller 160 repeats the previous processes 219 to 247 until a touch requesting crop occurs.

On the other hand, if it is determined that another touch generated on the touch screen 140 requires a crop, the controller 160 proceeds to the next process.

Subsequently, when a crop request for the crop mark inner region of the current position and size occurs as shown in FIG. 4H, the controller 160 displays the partial image on the display unit 141 as shown in FIG. 4I ( 249). That is, the controller 160 replaces the screen displaying the specific image with the screen displaying the partial image corresponding to the internal region of the crop mark. At this time, the controller 160 no longer displays the boundary line of the crop mark.

Finally, when a touch occurs on the touch screen 140, the controller 160 detects it (251), and determines whether or not the touch is a request for ending the partial image acquisition process (253). In this case, if it is determined that the touch generated on the touch screen 140 is a request for terminating the partial image acquisition procedure, the controller 160 acquires the partial image of the current size and then ends the partial image acquisition procedure. That is, the controller 160 may store the partial image of the current size in the storage 150 separately from the original specific image.

On the other hand, if it is determined that the touch generated on the touch screen 140 is not a request for terminating the partial image acquisition process, the controller 160 performs a corresponding function (255). For example, the controller 160 may change the size of the partial image.

3 is a flowchart illustrating a partial image size change procedure before partial image acquisition in FIG. 2. 4J and 4K illustrate examples of screens displayed when the partial image size is changed. 4J illustrates a screen displayed when a touch occurs in the partial image, and FIG. 4K illustrates a screen in which the size of the partial image changes as the touch is dragged.

Referring to FIG. 3, when it is determined that the touch generated through the touch screen 140 is not a request for terminating the partial image acquisition procedure in the state of displaying the partial image, the controller 160 is as shown in FIG. 4J. In operation 311, it is determined whether a touch occurs in the partial image. That is, the controller 160 detects a location where a touch has occurred and then analyzes the detected touch location to determine whether the touch has occurred in the partial image. When a drag of the touch occurs from the partial image, the controller 160 detects this (313) and tracks the direction in which the touch is dragged (315). In addition, as shown in FIG. 4K, the controller 160 changes the size of the partial image along the direction in which the touch is dragged (317). In this case, the size of the partial image may be enlarged or reduced according to the direction in which the touch is dragged.

Next, when a touch drop occurs on the touch screen 140, the controller 160 detects this (319) and displays a partial image of the current size (321). At this time, the controller 160 repeats the previous processes 315 to 319 until the touch generated in the partial image is dropped. That is, when it is determined that the touch is generated from the partial image, the controller 160 may change the size of the partial image along the drag direction of the touch generated on the touch screen 140.

Next, when another touch occurs on the touch screen 140, the controller 160 detects this (323), and determines whether the other touch is a request for ending the partial image acquisition process (325). If it is determined that another touch generated on the touch screen 140 is a request for terminating the partial image acquisition procedure, the controller 160 acquires the partial image of the current size and then ends the partial image acquisition procedure. That is, the controller 160 may store the partial image of the current size in the storage 150 separately from the original specific image.

On the other hand, if it is determined that the other touch generated on the touch screen 140 is not a request for terminating the partial image acquisition procedure, the controller 160 may perform the previous process until a request for terminating the partial image acquisition procedure occurs. 311 to 325) are repeated.

Meanwhile, the above-described embodiment discloses a method of acquiring a partial image by changing a location, a size of a crop mark, or a size of a partial image according to dragging and dropping a touch, but is not limited thereto. That is, it is also possible to change the position, the size of the crop marks, or the size of the partial image according to the generation of the touch and other touches. Therefore, it will be described in the second embodiment of the present invention.

5 is a flowchart illustrating a partial image acquisition procedure according to a second embodiment of the present invention.

Referring to FIG. 5, the partial image acquisition procedure of the present invention starts from the control unit 160 displaying a specific image (511). Thereafter, when a request for obtaining a partial image occurs, the controller 160 detects this (513) and displays a crop mark set in a predetermined region of the displayed image (515). At this time, the position, size, shape, etc. of the crop marks to be displayed may be set by default in advance or may be set by the user of the mobile terminal 100. The request for obtaining the partial image may be input by accessing a lower menu from a higher menu or by a user touching a portion of the touch screen 140. In the latter case, a crop mark may be displayed at a position touched by the user or a crop mark may be displayed at a default position irrespective of the touch area.

Subsequently, when a touch is generated on the touch screen 140, the controller 160 detects it (517), and determines whether or not the touch has occurred in an internal region of the crop mark (519). That is, the controller 160 detects a location where a touch has occurred and then analyzes the detected touch location to determine whether the touch has occurred in an internal region of the crop mark. If a touch occurs after the touch is generated in the inner region of the crop mark, the controller 160 detects the touch (521), and moves and displays the crop mark to a position where another touch occurs in the predetermined region of the image (523). . At this time, if it is determined that the touch occurs in the internal area of the crop mark, the controller 160 may change the position of the crop mark to the position of another touch generated on the touch screen 140. When another touch is generated on the touch screen 140, the controller 160 detects it (525) and determines whether the touch requires cropping (527).

On the other hand, if it is determined that the touch has not occurred in the internal region of the crop mark as a result of analyzing the detected touch position, the controller 160 determines whether the touch has occurred at the boundary of the crop mark (529). If another touch occurs after a touch occurs at the boundary of the crop mark, the controller 160 detects it (531), and changes and displays the size of the crop mark corresponding to a position where another touch occurs in a predetermined region of the image. (533). In this case, the size of the crop mark may be enlarged or reduced according to a position where another touch occurs. That is, when it is determined that the touch occurs at the boundary of the crop mark, the controller 160 may change the size of the crop mark corresponding to the position where another touch occurs on the touch screen 140. If another touch occurs on the touch screen 140, the controller 160 detects this (535) and determines whether the touch requires cropping (527). In this case, if it is determined that another touch generated on the touch screen 140 does not require crop, the controller 160 repeats the previous processes 519 to 535 until a touch requesting crop occurs.

On the other hand, if it is determined that another touch generated on the touch screen 140 requires a crop, the controller 160 proceeds to the next process.

Subsequently, when a crop request for the crop mark inner region of the current position and size occurs, the partial image is displayed on the display unit 141 of the controller 160 (537). That is, the controller 160 replaces the screen displaying the specific image with the screen displaying the partial image corresponding to the internal region of the crop mark. At this time, the controller 160 no longer displays the boundary line of the crop mark.

Finally, when a touch occurs on the touch screen 140, the controller 160 detects this (539), and determines whether or not the touch is a request for ending the partial image acquisition process (541). In this case, if it is determined that the touch generated on the touch screen 140 is a request for terminating the partial image acquisition procedure, the controller 160 acquires the partial image of the current size and then ends the partial image acquisition procedure. That is, the controller 160 may store the partial image of the current size in the storage 150 separately from the original specific image.

On the other hand, if it is determined that the touch generated on the touch screen 140 is not a request for terminating the partial image acquisition process, the controller 160 performs a corresponding function (543). For example, the controller 160 may change the size of the partial image.

FIG. 6 is a flowchart illustrating a procedure of changing a partial image size before obtaining partial images in FIG. 5.

Referring to FIG. 6, if it is determined that a touch generated through the touch screen 140 is not a request for terminating the partial image acquisition procedure while displaying the partial image, the controller 160 generates a touch on the partial image. It is determined whether or not (611). That is, the controller 160 detects a location where a touch has occurred and then analyzes the detected touch location to determine whether the touch has occurred in the partial image. When a touch occurs in the partial image and then another touch occurs, the controller 160 detects it (613) and changes and displays the size of the partial image in response to a position where another touch occurs in a predetermined region of the image (615). ). In this case, the size of the partial image may be enlarged or reduced according to a position where another touch occurs. That is, when it is determined that another touch occurs in the partial image, the controller 160 may change the size of the crop mark corresponding to the position where the other touch occurs on the touch screen 140.

Next, when another touch occurs on the touch screen 140, the controller 160 detects it (617), and determines whether another touch is a request for terminating the partial image acquisition procedure (619). ). If it is determined that another touch generated on the touch screen 140 is a request for terminating the partial image acquisition procedure, the controller 160 acquires the partial image of the current size and then ends the partial image acquisition procedure. That is, the controller 160 may store the partial image of the current size in the storage 150 separately from the original specific image.

On the other hand, if it is determined that another touch generated on the touch screen 140 is not a request for terminating the partial image acquisition procedure, the controller 160 performs a previous process until a request for terminating the partial image acquisition procedure occurs. (611 to 619) are repeated.

As described above, the method for acquiring a partial image of a mobile terminal having a touch screen according to an embodiment of the present invention may execute a function to be performed when the partial image is to be acquired in the portable terminal in an integrated mode. In addition, when the integrated mode is executed in the portable terminal, the corresponding function may be executed using the touch screen. Thus, there is an advantage that a partial image can be easily obtained from a specific image.

Claims (10)

In the partial image acquisition method of a mobile terminal having a touch screen, Displaying a crop mark on a predetermined area of the display image when a partial image acquisition request is generated; If the touch is detected in the first area of the crop mark, moving the crop mark to a position where the touch is dragged and dropped; And displaying a partial image corresponding to an internal region of the crop mark when a crop request is made. The method of claim 1, And if the touch is detected in the second area of the crop mark, changing the size of the crop mark in response to a position where the touch is dragged and dropped. The method of claim 1, And if the touch is detected in the partial image, changing the size of the partial image in response to a position where the touch is dragged and dropped. The method of claim 1, And a first region of the crop mark is an inner region of the crop mark. The method of claim 2, And the second area of the crop mark is a boundary line of the crop mark. In the partial image acquisition method of a mobile terminal having a touch screen, Displaying a crop mark set in a predetermined region of the display image when a partial image acquisition request is generated; If a touch is detected in the first area of the crop mark, moving the crop mark to a position where another touch is detected; And displaying a partial image corresponding to an internal region of the crop mark when a crop request is made. The method of claim 6, And if the touch is detected in the second area of the crop mark, changing the size of the crop mark in response to a position where another touch is detected. The method of claim 6, And if the touch is detected in the partial image, changing the size of the partial image in response to a position where another touch is detected.  The method of claim 6, And a first region of the crop mark is an inner region of the crop mark. The method of claim 7, wherein And the second area of the crop mark is a boundary line of the crop mark.

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