KR101337383B1 - Mobile terminal and method for editing image thereof - Google Patents

Abstract

The present invention relates to a mobile terminal and a method for editing an image in the mobile terminal, when an image to be processed as a mosaic image is selected, dividing the selected image into a block image; Calculating a color average value for each of the divided block images, and determining whether an upper fragment image for generating the mosaic image is selected; And searching for a fragment image corresponding to the calculated color average value in the selected upper fragment image, and replacing the block image with the found fragment image to display a mosaic image. Accordingly, the portable terminal may generate images having a different atmosphere by synthesizing the images stored by the user's selection into various pieces of images.

Handset, sculpture image, color, mosaic

Description

MOBILE TERMINAL AND METHOD FOR EDITING IMAGE THEREOF}

The present invention relates to a portable terminal and a method for editing the image thereof, and more particularly, to a method for generating a mosaic image using a fragment image and a portable terminal for performing the same.

The user can use various functions in the mobile terminal. Here, the various functions may be a video call function, a camera function, a digital mobile broadcasting function (DMB or DVB), an internet function, as well as a call function and a message transmission / reception function. Among them, the camera function is widely used as an advantage that a user can take a picture anytime and anywhere without having a digital camera.

For this reason, camera functions in portable terminals have tended to have similar performance as digital cameras. In addition, various functions that can be used in the digital camera is also available in the camera function of the mobile terminal.

As various functions can be used by using the camera of the portable terminal, the user requires that more various functions (for example, photo synthesis and editing) be used through the camera function of the portable terminal. In particular, since a function for editing an image among the camera functions of the mobile terminal provides only a function of synthesizing only a few images, there is a problem that a user cannot edit an image in various ways.

An object of the present invention for solving the above problems is to provide an image editing method using a fragment image and a portable terminal for performing the same.

In order to achieve the above object, an image editing method according to an embodiment of the present invention comprises: dividing the selected image into a block image when an image to be processed as a mosaic image is selected; Calculating a color average value for each of the divided block images, and determining whether an upper fragment image for generating the mosaic image is selected; And searching for a fragment image corresponding to the calculated color average value in the selected upper fragment image, and replacing the block image with the found fragment image to display a mosaic image.

In addition, a portable terminal according to an embodiment of the present invention to achieve the above object is a storage unit for storing the upper fragment image and the fragment image included in the upper fragment image; The color image of the block image is calculated by dividing the selected image into a block image for processing into a mosaic image, and when the upper fragment image for generating a mosaic image is selected, the calculated color average value is calculated from the upper fragment image. A controller for searching for a corresponding fragment image and generating a mosaic image by replacing the block image with the found fragment image; And a display unit which displays the generated mosaic image under the control of the controller.

According to the present invention, an image displayed on the portable terminal can be displayed as a mosaic using a fragment image desired by the user. In addition, the portable terminal may generate a mosaic image having a different atmosphere by synthesizing an image stored by a user's selection into various pieces of images.

 The image may include a panorama picture generated by connecting a plurality of images and a picture of a person, a landscape, and a still life input through a camera of the mobile terminal. In addition, the image may include a picture or a picture downloaded from the Internet or downloaded from another mobile terminal or the terminal.

'Mosaic image' refers to an image generated by collecting several pieces of images.

'Fragment image' means an image stored to generate a mosaic image. Here, the fragment image may include all images that may have various colors such as coin images, confetti images, flower images, and photographs.

The upper fragment image refers to an image that is stored in thumbnail form to represent fragment images by type.

'Block image' refers to an image corresponding to each divided block when a predetermined image is divided into blocks of a predetermined pixel unit to convert an arbitrary image into a mosaic image.

'Pixel unit' means grouping several pixels together.

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

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

Referring to FIG. 1, a portable terminal includes a camera unit 110, an input unit 120, a controller 130, a display unit 140, and a storage unit 150.

The camera unit 110 performs a function of photographing image data. The camera unit 110 includes a camera sensor that converts the photographed optical signal into an analog image signal, and a signal processor that converts the analog image signal converted from the camera sensor into digital data. The camera sensor may be a CCD sensor, and the signal processing unit may be implemented by a DSP (Digital Signal Processor). In addition, the camera sensor and the signal processing unit may be integrated or separately implemented.

The input unit 120 includes input keys for inputting numbers or characters and function keys for setting various functions. The function keys may include a direction key, a side key, and an accelerator key set to perform specific functions. The input unit 120 may include a function key for executing a camera function and a shortcut key for selecting an image editing mode.

The controller 130 controls the overall state and operation of the components constituting the portable terminal. In particular, when the mosaic composition mode is selected through the input unit 120, the controller 130 divides an image to be generated as a mosaic image into blocks of a predetermined pixel unit, and calculates a color average value of a block image corresponding to the divided block. In addition, the controller 130 searches for a fragment image group including a calculated color average value among the fragment image groups stored in the storage 150, and searches for a fragment image similar to the color average value calculated from the found fragment image group. The controller 130 controls the display unit 140 to display the mosaic image generated by replacing the block image with the retrieved fragment image.

The display unit 140 may display various information related to the state and operation of the portable terminal. The display unit 140 may use an LCD. In this case, the display unit 140 may include an LCD controller, a memory capable of storing image data, an LCD display element, and the like, and may be implemented using a touch screen method. When the touch screen is implemented as described above, the display unit 140 may also operate as the input unit 120. Here, the display unit 140 may display an image photographed by the camera unit 110 and display a mosaic image generated in the mosaic composition mode.

The storage unit 150 stores various programs for controlling general operations of the portable terminal and various data generated during operation of the portable terminal. In particular, the storage unit 150 may store pieces of similar colors by grouping pieces of images necessary for generating a mosaic image under the control of the controller 130. In addition, the storage 150 may store the upper fragment image representing the fragment images stored under the control of the controller 130 as thumbnails. In other words, when the coin image and the confetti images are input as pieces images, the coin images having similar colors among the coin images are stored in groups, and the confetti images having similar colors among the confetti images are stored in the storage unit 150. Under the control of the controller 130 stores the coin image that can be displayed on behalf of the coin image group, the confetti image that can be displayed on behalf of the confetti image group as upper pieces of the image.

In the portable terminal having the above configuration, the controller 130 may download an image input through the camera unit 110 or the Internet, or generate a mosaic image downloaded from another portable terminal or the terminal. In more detail, when an image to be converted into a mosaic image is selected, the controller 130 divides the selected image by a predetermined pixel unit, calculates a color average value of the block image displayed on the divided pixel unit, and stores the storage unit ( The fragment image group including the calculated color average value is searched among the fragment image groups stored in 150, and the fragment image having a color value similar to the color average value calculated from the retrieved fragment image group is searched again. The controller 130 may generate a mosaic image by replacing the block image with the retrieved fragment image and display the mosaic image on the display unit 140, and store the mosaic image generated according to a user's selection in the storage unit 150.

2A is a flowchart illustrating a method of setting a fragment image according to an exemplary embodiment of the present invention. Here, FIG. 2A will be described with reference to FIG. 2B. 2B is an exemplary screen illustrating a method of setting a piece image according to the present invention.

Referring to FIG. 2A, when the user selects the fragment image setting mode through a menu, the controller 130 detects this and switches the mode of the mobile terminal to the fragment image setting mode in step 210. In this case, the controller 130 displays the fragment image input window on the display unit 140 so that the user can register the fragment image through the displayed fragment image input window. Next, the controller 130 determines whether a plurality of images to be used as fragment images are input in step 220. The fragment image may be an image downloaded from the Internet, another mobile terminal, or a terminal, and an image stored by the user 150 after being photographed through the camera unit 110 may be used. In particular, the image to be used as a sculpture image is preferably an image that can include a variety of colors, such as coin image, confetti image, flower image, animal image.

When the image to be used as the fragment image is input, the controller 130 checks the size of the input image in step 230 and resizes the size of the checked image to the size of a predetermined pixel unit. The size of the pixel unit set here may be 32x32 or 24x24.

Next, the controller 130 checks an RGB color value for each resized image in step 240. In other words, the controller 130 calculates color values of two or more input images to set the fragment image. The controller 130 confirming the color value calculates a color average value for each image according to the color value identified in step 250. Steps 240 and 250 will be described in more detail with reference to FIG. 2B. Referring to FIG. 2B, the controller 130 divides each pixel constituting the coin image as shown in FIG. 2B and calculates a color value for each divided pixel. The controller 130 obtains an average value of the calculated color values for each pixel. Accordingly, referring to FIG. 2B, the color average value of one coin image is F6F1ED and the color average value of the other coin image is F7F7F7. In this case, the process of calculating the color average value is repeated until the color average value of all the input images is calculated to set the fragment image.

Next, the controller 130 classifies the fragment image for each group according to the color average value calculated in step 260. In other words, the controller 130 generates fragmented image groups by grouping images having similar color average values. Next, the controller 130 controls the storage unit 150 in step 270 to store the classified image group. For example, if the images are grouped according to the colors included in the color average value, the controller 130 controls the storage unit 150 so that the images containing a lot of red, the images containing a lot of blue, the yellow, This includes a lot of images are grouped and stored. It is preferable to express the color average value as a hexadecimal value here. In addition, the controller 130 may control and store the upper fragment image for distinguishing the stored fragment images by a thumbnail or the like. Accordingly, when generating the mosaic image, the controller 130 displays the upper fragment image stored in the storage unit 150 on the display unit 140 so that the user can select the fragment image for generating the mosaic image.

Next, a process of generating a mosaic image in the mobile terminal will be described. Here, the process of generating the mosaic image will be described with reference to FIG. 3.

3 is a flowchart illustrating a method of editing an image according to an embodiment of the present invention.

Referring to FIG. 3, when a user selects an image editing mode by inputting a menu or a shortcut key to generate a mosaic image, the controller 130 detects this and switches the mode of the mobile terminal to the image editing mode in step 310. . In this case, the controller 130 displays a selection window for selecting a mosaic composition, or displays a list of image editing menus (photo correction, video capture, photo sticker making, photo decoration, etc.) including the mosaic composition. Also, although not shown in the drawing, the controller 130 may determine whether the fragment image setting mode is selected when the mosaic composition mode is not selected. If the fragment image setting mode is selected, the controller 130 may perform a process of setting the fragment image as described in detail of FIG. 2.

 When the mosaic composition mode is selected, the controller 130 detects this and displays the image stored in the storage 150 in step 320. In this case, the stored images may be displayed as thumbnails or listed in a list so that the images can be checked in advance. In operation 325, the controller 130 determines whether an image to be processed as a mosaic image is selected. When the user selects an image to be processed as a mosaic image from among the images displayed through the input unit 120, the controller 130 detects this and divides the selected image into blocks of a predetermined pixel unit in step 330. The method of dividing into a predetermined block of pixels may be divided into a size of a pre-stored fragment image, or may be divided into blocks of a pixel unit set by a user. When dividing an image to be processed as a mosaic image into size blocks of a pre-stored fragment image, since the block image and the fragment image are the same size, the controller 130 compares only the color average values of the block image and the fragment image to generate a mosaic image. Just do it.

In operation 335, the controller 130 dividing an image to be processed into a mosaic image into a block image determines whether an upper fragment image for generating a mosaic image is selected. In this case, the controller 130 displays thumbnails or a list of preset images as a fragment image on the display unit 140 so that a user can select a fragment image for generating a mosaic image through the input unit 120. The engraving image here includes not only a coin image, but also all images that are displayed in color. When the higher fragment image is selected, the controller 130 checks the block image for each pixel unit divided in step 340. In operation 345, the controller 130 calculates a color average value for each block image. In other words, the controller 130 checks the color values for each block image and calculates a color average value for each of the identified color values. In operation 350, the control unit 130 that calculates a color average value for each block image searches for a piece image corresponding to the calculated color average value among the pieces of images included in the upper piece image. Here, step 350 will be described in detail with reference to FIG. 4.

4 is a flowchart illustrating a method of searching for a fragment image according to an embodiment of the present invention.

Referring to FIG. 4, the controller 130 searches for the fragment image group including the color average value calculated among the fragment image groups included in the upper fragment image in step 410. In operation 420, the controller 130 selects a fragment image having a color average value similar to the color average value of the block image from the found fragment image group. For example, a block image has a color average of 75% yellow and a slice image group is a group of first slice images with a color average of 60% or more and less than 70% yellow, and a second slice image group with more than 70% and less than 80% yellow. Assume that it is classified. Then, the controller 130 checks 75% of the average color value of the block image, and searches for the fragment image group stored in the storage 150. The controller 130 checks the second fragment image group having a color average value of 70% or more and less than 80%, and selects a fragment image having a color average value similar to the color average value of the block image among the fragment images included in the identified second fragment image group. Search and select. When the fragment image having a color average value similar to the color average value of the block image is selected, the controller 130 returns to FIG. 3.

If the fragment image is found, the controller 130 replaces the block image with the found fragment image in step 355. These processes are repeated until all block images are replaced with the retrieved fragment images. If all of the block images are replaced with the retrieved fragment image, the controller 130 controls the display unit 140 to display the mosaic image generated by replacing the fragment image in step 360. Next, although not shown in the drawing, the controller 130 may control the storage unit 150 to store the mosaic image displayed by the user's selection or automatically generate the mosaic image.

In the present invention, a method of generating a mosaic image in the image editing mode has been described. However, the present invention is not limited thereto, and the mosaic image generation may be set in advance so that the photographed image may be displayed as a mosaic image by using a fragment image during camera shooting. .

In the foregoing, certain preferred embodiments of the present invention have been shown and described. However, the present invention is not limited to the above-described embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention attached to the claims. .

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

2A is a flow chart illustrating a method of setting a fragment image according to an embodiment of the present invention.

Figure 2b is a screen example illustrating a method of setting a piece image in accordance with the present invention.

3 is a flowchart illustrating a method of editing an image according to an embodiment of the present invention.

4 is a flowchart illustrating a method of retrieving a fragment image according to an embodiment of the present invention.

Claims (10)

If an image to be processed as a mosaic image is selected, dividing the selected image into a block image; Calculating a color average value for each of the divided block images, and determining whether an upper fragment image for generating the mosaic image is selected; And Searching for a fragment image corresponding to the calculated color average value in the selected upper fragment image, and replacing the block image with the found fragment image to display a mosaic image. The method of claim 1, wherein the displaying of the mosaic image is performed. Searching for a fragment image group including the color average value among fragment image groups included in the upper fragment image; And And selecting a fragment image similar to the color average value from the found fragment image group. The method of claim 1, wherein the dividing into the block image And dividing the selected image into blocks in predetermined pixel units. The pixel unit of claim 3, wherein the set pixel unit An image editing method, characterized in that it is the same pixel unit as the size of the fragment image. The method according to claim 1, Further comprising setting the fragment image, The process of setting the fragment image Calculating a color average value for each of two or more input images; And And classifying the image into fragment images for each group according to the calculated color average value, and storing the classified fragment images for each group. 6. The method of claim 5, And resizing the size of each of the two or more input images by a predetermined pixel unit. The method according to claim 1, And repeating the above steps and replacing all of the divided block images with pieces of images to display the mosaic images. A storage unit for storing fragment images included in an upper fragment image and the upper fragment image and classified into groups by color average values; The color image of the block image is calculated by dividing the selected image into a block image for processing into a mosaic image, and when the upper fragment image for generating a mosaic image is selected, the calculated color average value is calculated from the upper fragment image. A controller for searching for a corresponding fragment image and generating a mosaic image by replacing the block image with the found fragment image; And And a display unit which displays the generated mosaic image under the control of the controller. 9. The apparatus of claim 8, wherein the control unit In the fragment image setting mode, color average values of two or more input images are calculated, the input images are classified into fragment images for each group according to the calculated color average values, and the storage unit is controlled to display the fragment images for each group. A mobile terminal, characterized in that the storage. The method of claim 9, wherein the control unit And resizing the size of each of the two or more input images by a predetermined pixel unit.

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