KR20090062578A - Apparatus and method for compositing image in digital image device - Google Patents

Abstract

An image compositing apparatus and method in a digital image processor are provided to synthesize small a second photographed image on a first photographed image and provide information about the photographed images to a user, thereby providing convenience to the user. An image compositing apparatus in a digital image processor comprises a digital signal processor(39). The digital signal processor takes a picture of a first image and a next second image. The digital signal processor cuts down the size of a sub image arbitrarily selected out of the first and second images. The digital signal processor synthesizes the sub image with a main image.

Description

Apparatus and method for compositing image in digital image device

The present invention relates to a digital image processing apparatus and a method of operation, and more particularly, to digitally synthesize a second image photographed on a photographed first image so that the information of the captured image can be known only by synthesizing the captured image. An image synthesizing apparatus and method in an image processor.

In general, if you want to enter the information about the video after taking a picture or insert a memo, or when saving the file is divided into several categories and stored.

However, if the information of the captured image can be known only by synthesizing the captured image, it may be convenient to the user.

The technical problem to be solved by the present invention is an image synthesizing apparatus and method in a digital image processor to synthesize the second image photographed on the first image photographed small to know the information of the captured image only by the synthesis of the captured image To provide.

The image synthesizing apparatus according to the first embodiment for solving the technical problem to be achieved by the present invention is a digital image processor, and photographs and stores the first and next second images, and is arbitrarily selected from among the first and second images. It is preferable to include a digital signal processing means for reducing the size of the sub-image to synthesize with the main image.

In the present invention, if the sub image is selected from the displayed composite image, the digital signal processing means enlarges the size of the sub image to the size of the main image and reduces the size of the main image to the size of the sub image. Can be synthesized.

In accordance with another aspect of the present invention, there is provided an image synthesizing apparatus, which is a digital image processor that selects stored first and second images and randomly selects a sub image from among the first and second images. It is preferable that the digital signal processing means for reducing the size of the synthesized with the main image.

In the present invention, if the sub image is selected from the displayed composite image, the digital signal processing means enlarges the size of the sub image to the size of the main image and reduces the size of the main image to the size of the sub image. Can be synthesized.

According to an aspect of the present invention, there is provided an image combining method, which includes an operation method of a digital image processor, including: (a) photographing and storing a first image; (b) photographing and storing a next second image; And (c) reducing the size of a randomly selected sub-image among the first and second images to synthesize the main image.

In the present invention, when the sub-image is selected from the displayed composite image, the size of the sub-image may be enlarged to the size of the main image, and the size of the main image may be reduced to the size of the sub-image and synthesized.

According to another aspect of the present invention, there is provided a method of synthesizing an image, comprising: (a) selecting a stored first image; (b) selecting the stored second image; And (c) reducing the size of a randomly selected sub-image among the first and second images to synthesize the main image.

In the present invention, when the sub-image is selected from the displayed composite image, the size of the sub-image may be enlarged to the size of the main image, and the size of the main image may be reduced to the size of the sub-image and synthesized.

As described above, according to the present invention, the second image photographed on the photographed first image may be synthesized small so that the information of the photographed image may be known only by synthesizing the photographed image.

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

1 is a perspective view showing the front and top appearance of a digital image processor.

The shutter release button 11 is opened and closed to expose the CCD or film to light for a predetermined time, and records the image on the CCD by properly exposing the subject in conjunction with an aperture (not shown).

The shutter release button 11 generates the first and second image capturing signals by a photographer input. When the first shutter release button 11 as a half shutter signal is input, the digital image processing apparatus focuses and adjusts the amount of light, and when the focus is achieved, the green light is turned on in the display unit 25. . When focus is achieved by the input of the first shutter release button 11 and the amount of light is adjusted, the second shutter release button 11 as a full shutter signal is input to capture an image.

The power button 13 is input to supply power to and operate the digital image processing apparatus.

The flash 15 brightens the bright light instantly when shooting in a dark place. Flash modes include auto flash, forced flash, flash off, red-eye reduction, and slow synchro.

The auxiliary light 17 supplies light to the subject so that the digital image processing apparatus automatically focuses quickly and accurately when the amount of light is insufficient or at night.

The lens unit 19 receives light from an external light source and processes an image.

FIG. 2 is a rear view illustrating a rear shape of the digital image processor illustrated in FIG. 1, and includes a wide-angle zoom button 21w, a telephoto-zoom button 21t, a display unit 23, and a touch sensor or a contact switch. Input buttons B1 to B14 (hereinafter referred to as buttons B1 to B14).

The wide-angle zoom button 21w or the tele-zoom button 21t increases the angle of view or narrows the angle of view depending on the input, particularly when the size of the selected exposure area is to be changed. When the wide-zoom button 21w is input, the size of the selected exposure area is reduced, and when the tele-zoom button 21t is input, the size of the selected exposure area is increased.

The buttons B1 to B14 are provided in the horizontal column and the vertical column of the display unit 23. The buttons B1 to B14 provided in the horizontal and vertical columns of the display unit 23 are provided with a touch sensor (not shown) or a contact switch (not shown).

That is, the buttons B1 to B14 are provided with a touch sensor to move up / down / left / right in a state where the buttons B1 to B7 in the horizontal row or the buttons B8 to B14 in the vertical row are touched. You can select any value (eg, color or brightness) from the items, or activate the submenu icons included in the main menu icon.

In addition, the button frame (B1 ~ B14) is provided with a contact switch, it is possible to directly select the main menu icon and sub-menu icon to execute the corresponding function. The touch sensor requires only a weak touch relative to the contact switch input, but the contact switch input requires a relatively strong touch compared to the touch sensor input.

3 is a block diagram showing the configuration of an image synthesizing apparatus in a digital image processor according to the present invention, wherein the display unit 23, the user input unit 31, the imaging unit 33, the image processing unit 35, and the storage unit ( 37) and a digital signal processor 39.

The user input unit 31 has a shutter release button 11 that opens and closes to expose the CCD or film to light for a predetermined time, a power button 13 that inputs to supply power, and widens the angle of view according to the input, Wide-zoom button 21w and tele-zoom button 21t for narrowing the distance, and touch sensors or contact switches provided in horizontal and vertical columns around the display unit 23 for character input or menu selection and execution. There are buttons provided with a button frame (B1 ~ B14).

The imaging unit 33 includes a shutter, a lens unit, an aperture, a charge coupled device (CCD), and an ADC, which are not shown in the figure. The shutter is a mechanism for adjusting the amount of light exposed together with the aperture. The lens unit receives light from an external light source and processes an image. At this time, the iris adjusts the amount of light incident (light quantity) according to the degree of opening and closing. The opening and closing degree of the iris is controlled by the digital signal processing unit 39.

The CCD accumulates the amount of light input through the lens unit and outputs an image captured by the lens unit in accordance with the accumulated light amount in accordance with the vertical synchronization signal. Image acquisition of the digital image processing apparatus is performed by a CCD that converts light reflected from a subject into an electrical signal. In order to obtain a color image using a CCD, a color filter is required, and most of them employ a filter (not shown) called a color filter array (CFA). CFA has a structure arranged regularly by passing only one color light per pixel, and has various shapes according to the arrangement structure. The ADC converts an analog video signal output from the CCD into a digital signal.

The image processor 35 performs signal processing to display the digitally converted RAW data. The image processor 35 removes the black level caused by the dark current generated by the CCD and the CFA filter that are sensitive to the temperature change. The image processor 35 performs gamma correction to encode information according to nonlinearity of human vision. The image processor 35 performs CFA interpolation to interpolate the Bayer pattern implemented by the RGRG line and the GBGB line of the gamma corrected predetermined data into the RGB line. The image processing unit 35 converts the interpolated RGB signal into a YUV signal and filters the Y signal by a high band filter to clearly process the image, and uses the standard color coordinate system to adjust the color values of the U and V signals. Perform color correction to correct and remove their noise. The image processor 35 compresses and signals the Y, U, and V signals from which the noise is removed to generate a JPEG file, and the generated JPEG file is displayed on the display unit 23 and stored in the storage unit 37. . All of the operations of the image processor 35 operate under the control of the digital signal processor 39.

The digital signal processor 39 captures the first and next second images and stores them in the storage 37. In this case, the digital signal processor 39 may set the first image as the main image, the second image as the sub image, or set the second image as the main image and the first image as the sub image. Thereafter, the digital signal processing unit 39 reduces the size of the sub-image, synthesizes the main image, and stores and displays the synthesized image in a folder other than the folder in which the first and second images are stored.

In this case, when the sub image is selected from the displayed synthesized image, the sub image is enlarged to the size of the main image, the main image is reduced to the size of the sub image, synthesized, and then stored in another folder of the display and storage unit 37. . In another embodiment, when a sub image is selected from the displayed composite image, the digital signal processor 39 retrieves the first image stored in the storage 37 and reduces the size of the sub image to the size of the sub image, and stores the first image stored in the storage 37. The second image is loaded and synthesized by the second image as the main image and the first image as the sub image, and then stored in another folder of the display and storage unit 37.

As shown in FIG. 4, the digital signal processor 39 captures the flower image (a) as the first image and stores it in the storage unit 37. The digital signal processor 39 captures and stores the information image (b) as the second image. It stores in the part 37. Here, the digital signal processor 39 may set the flower image (a) as the main image and the information image (b) as the sub image. On the contrary, the digital image processor (39) may set the information image (b) as the main image and the flower image ( a) may be set as a sub-picture. Thereafter, the digital signal processor 39 generates a reduced image b-1 by reducing the size of the information image b that is the second image as the sub image, and generates a flower image image that is the first image as the main image. The first synthesized image (c) obtained by synthesizing the reduced information image (b-1) in a) is stored in another folder of the storage unit 37. Here, the other folder means a folder other than the folder in which the flower image (a) and the information image (b) are stored.

When the first composite image (c) is displayed and receives the information image (b-1) selection signal as the sub image from the user, the digital signal processor 39 displays the flower image which is the first image as the previous main image. A scaled-up image (a-1) is generated by reducing the size of the image (a), and the storage unit (S) stores the second composite image (d) obtained by synthesizing the reduced flower image (a-1) with the information image (b). Save it in another folder.

In another embodiment, the previously stored images may be selectively reproduced and synthesized. In this case, the digital signal processor 39 selects the first and second images stored in the storage 37. The digital signal processor 39 may set the selected first image as the main image, the second image as the sub image, or set the selected second image as the main image and the first image as the sub image. Thereafter, the digital signal processor 39 reduces the size of the selected sub-image, synthesizes the selected sub-image, and stores and displays the same in another folder of the storage 37.

In this case, when the sub image is selected from the displayed synthesized image, the sub image is enlarged to the size of the main image, the main image is reduced to the size of the sub image, synthesized, and then stored in another folder of the display and storage unit 37. . In another embodiment, when a sub image is selected from the displayed composite image, the digital signal processor 39 retrieves the first image stored in the storage 37 and reduces the size of the sub image to the size of the sub image, and stores the first image stored in the storage 37. The second image is loaded and synthesized by the second image as the main image and the first image as the sub image, and then stored in another folder of the display and storage unit 37.

As shown in FIG. 4, the digital signal processor 39 selects a flower picture image a as the first image (main image) from the storage unit 37 and a second image (sub image) from the storage unit 37. Select the information image (b). Thereafter, the digital signal processor 39 generates a reduced image (b-1) by reducing the size of the information image (b), which is the second image, as a sub image, and a flower image (a) as the main image (a). ) Is stored in another folder of the storage unit 37 by combining the reduced information image (b-1). Here, the other folder means a folder other than the folder in which the flower image (a) and the information image (b) are stored.

When the first composite image (c) is displayed and receives the information image (b-1) selection signal as the sub image from the user, the digital signal processor 39 displays the flower image which is the first image as the previous main image. A scaled-up image (a-1) is generated by reducing the size of the image (a), and the storage unit (S) stores the second composite image (d) obtained by synthesizing the reduced flower image (a-1) with the information image (b). Save it in another folder.

Hereinafter, an image synthesis method in a digital image processor according to the present invention will be described in detail with reference to FIGS. 5 and 6. In the digital image processor according to the present invention, the image synthesizing method may be performed in the digital image processing apparatus as shown in FIG. 3. According to an embodiment, the main algorithm of the operation method may be performed by the help of peripheral components in the apparatus. It may be performed in the digital signal processor 39.

First, a method of synthesizing an image after capturing an image according to the first embodiment of the present invention will be described with reference to FIG. 5.

The user selects the normal image capturing mode in the digital image processor, and the digital signal processor 39 receives the digital image processor to switch the digital image processor to the normal image capturing mode (step 501).

Thereafter, the user selects a picture in picture (PIP) photographing mode provided by the digital image processor, and the digital signal processor 39 switches the digital image processor to the PIP photographing mode (step 503). The digital signal processor 39 provides a PIP menu as a menu for performing image synthesis.

In the PIP photographing mode, when the first image (first image) is photographed, the digital signal processor 39 stores it in the storage 37 (step 505).

Subsequently, when the second image (second image) is captured, the digital signal processor 39 stores the image in the storage 37 (step 507).

The digital signal processor 39 may set the first image as the main image, the second image as the sub image, or set the second image as the main image and the first image as the sub image. In the present embodiment, it is assumed that the first image is set as the main image and the second image is set as the sub image.

When the storage of the first image and the second image is completed, the digital signal processing unit 39 reduces the size of the sub image, synthesizes the main image, and then combines the synthesized image with another folder (eg, PIP) of the storage unit 37. Folder) (step 509). Here, the PIP folder is any folder created for storing the composite image. As shown in FIG. 4, the digital signal processor 39 captures the flower image (a) as the first image and stores it in the storage unit 37. The digital signal processor 39 captures and stores the information image (b) as the second image. It stores in the part 37. Thereafter, the digital signal processor 39 generates a reduced image b-1 by reducing the size of the information image b that is the second image as the sub image, and generates a flower image image that is the first image as the main image. The first synthesized image (c) obtained by synthesizing the reduced information image (b-1) in a) is stored in another folder of the storage unit 37. Here, the other folder means a folder other than the folder in which the flower image (a) and the information image (b) are stored.

Subsequently, the digital signal processor 39 releases the PIP photographing mode (step 511), determines whether the playback mode is selected (step 513), and when the user selects the PIP playback mode, the digital signal processor 39 performs a digital image. The processor enters the PIP playback mode (step 515).

In the PIP reproduction mode, the digital signal processor 39 displays an image as shown in FIG. 4C in which a sub image is synthesized in the main image stored in the storage 37 (step 517).

Subsequently, the digital signal processor 39 determines whether the sub image is selected from the synthesized image (step 519). When the sub image is selected, the digital signal processor 39 reduces the size of the previous main image to the size of the sub image and mains the size of the previous sub image. The image is enlarged to an image size and synthesized, and the synthesized image is stored in another folder (for example, a PIP folder) of the storage unit 37 (step 521). As shown in FIG. 4, when the first composite image c is displayed and receives an information image b-1 selection signal as a sub image from the user, the digital signal processor 39 returns to the previous main image. A second composite image obtained by reducing the size of the flower image (a), which is the first image of the image, to generate a reduced image (a-1), and synthesizing the reduced flower image (a-1) into the information image (b) (d) is stored in another folder of the storage unit 37.

Thereafter, the digital signal processor 39 receiving the image output signal from the user to output the synthesized image outputs the synthesized image by connecting the digital image processor with an output device (not shown) (steps 523 and 525).

Next, a method of synthesizing a stored image according to a second embodiment of the present invention will be described with reference to FIG. 6.

The user selects the normal playback mode in the digital image processor, and the digital signal processor 39, which receives the change, switches the digital image processor to the normal playback mode (step 601).

Thereafter, the user selects a picture in picture (PIP) reproduction mode provided by the digital image processor, and the digital signal processor 39 switches the digital image processor to the PIP reproduction mode (step 603). The digital signal processor 39 provides a PIP menu as a menu for performing image synthesis.

In the PIP playback mode, the digital signal processor 39 extracts the first image (first image) selected by the user from the storage 37 (step 605).

Subsequently, the digital signal processor 39 extracts the second image (second image) selected by the user from the storage 37 (step 607).

The digital signal processor 39 may set the selected first image as the main image, the second image as the sub image, or set the selected second image as the main image and the first image as the sub image. In the present embodiment, it is assumed that the first image is set as the main image and the second image is set as the sub image.

When the extraction of the first image and the second image is completed, the digital signal processing unit 39 reduces the size of the sub image, synthesizes the main image, and then combines the synthesized image with another folder (for example, PIP) of the storage unit 37. Folder) and display it (step 609). Here, the PIP folder is any folder created for storing the composite image. As shown in FIG. 4, the digital signal processor 39 selects the flower image a as the first image (main image) from the storage 37, and the second image (sub) from the storage 37. Information image (b). Thereafter, the digital signal processor 39 generates a reduced image b-1 by reducing the size of the information image b, which is the second image, as a sub image, and the flower image image a, which is the first image, as the main image. The first synthesized image (c) obtained by synthesizing the reduced information image (b-1) is stored in another folder of the storage unit 37. Here, the other folder means a folder other than the folder in which the flower image (a) and the information image (b) are stored.

Subsequently, the digital signal processor 39 determines whether a sub image is selected from the synthesized image (step 611). When the sub image is selected, the digital signal processor 39 reduces the size of the previous main image to the size of the sub image and mains the size of the previous sub image. After the image is enlarged and synthesized, the synthesized image is stored in another folder (for example, a PIP folder) of the storage unit 37 and displayed (step 613). As shown in FIG. 4, when the first composite image c is displayed and receives an information image b-1 selection signal as a sub image from the user, the digital signal processor 39 returns to the previous main image. A second composite image obtained by reducing the size of the flower image (a), which is the first image of the image, to generate a reduced image (a-1), and synthesizing the reduced flower image (a-1) into the information image (b) (d) is stored in another folder of the storage unit 37.

Thereafter, the digital signal processor 39 receiving the image output signal from the user to output the synthesized image outputs the synthesized image by connecting the digital image processor with an output device (not shown) (steps 615 and 617).

1 is a perspective view showing the front and top appearance of a digital image processor.

FIG. 2 is a rear view illustrating a rear shape of the digital image processor illustrated in FIG. 1.

3 is a block diagram showing the configuration of an image synthesizing apparatus in a digital image processor according to the present invention.

4 is a diagram illustrating an example of image synthesis processing implemented in the apparatus of FIG. 3.

5 is a flowchart illustrating an operation of an image synthesizing method in a digital image processor according to a first embodiment of the present invention.

6 is a flowchart illustrating an operation of an image synthesizing method in a digital image processor according to a second embodiment of the present invention.

Claims (8)

As a digital image processor, And digital signal processing means for capturing and storing the first and next second images, and reducing the size of a randomly selected sub-image among the first and second images to synthesize the main image. The method of claim 1, wherein the digital signal processing means And if the sub-image is selected from the displayed composite image, enlarges the size of the sub-image to the size of the main image, and reduces and synthesizes the size of the main image to the size of the sub-image. As a digital image processor, And digital signal processing means for selecting the stored first and second images and reducing the size of a randomly selected sub-image among the first and second images to synthesize the main image. The method of claim 3, wherein the digital signal processing means And if the sub-image is selected from the displayed composite image, enlarges the size of the sub-image to the size of the main image, and reduces and synthesizes the size of the main image to the size of the sub-image. As an operation method of a digital image processor, (a) photographing and storing the first image; (b) photographing and storing a next second image; And and (c) reducing the size of a randomly selected sub-image among the first and second images and synthesizing it with the main image. The method of claim 5, If the sub image is selected from the displayed composite image, the size of the sub image is enlarged to the size of the main image, and the size of the main image is reduced to the size of the sub image to synthesize. As an operation method of a digital image processor, (a) selecting a stored first image; (b) selecting the stored second image; And and (c) reducing the size of a randomly selected sub-image among the first and second images and synthesizing it with the main image. The method of claim 7, wherein If the sub image is selected from the displayed composite image, the size of the sub image is enlarged to the size of the main image, and the size of the main image is reduced to the size of the sub image to synthesize.

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