KR20030065650A - Wire/wireless transmitting system having function of image chroma key - Google Patents

Abstract

PURPOSE: A wire/wireless transmission system having an image chroma key is provided, which composes a background image and a subject pictured in real time and at the same time composes a part of a human body of a photographer to the background image. CONSTITUTION: A wire/wireless transmission system(100) has an image chroma key and provides a composed image by composing the first image generated by photographing a subject and a background image selected by a user. A background screen is arranged behind the subject and is colored with a specific color. A screening tool is colored with a similar color to the color of the above specific color, or is attached with an object colored with the above color. An image photographing part photographs the subject and generates the first image. An image processing part comprises a subject image generation module generating a subject image by removing the colors of the first image, and the second image generation module generating the second image including the background image, and an image composition module generating the composed image by composing the first and the second image. And an output part outputs the above composed image.

Description

Wired / wireless transmission system with image chroma key function {WIRE / WIRELESS TRANSMITTING SYSTEM HAVING FUNCTION OF IMAGE CHROMA KEY}

The present invention relates to a wired / wireless transmission system having an image chroma key function, and in particular, is provided to a user in the form of a vending machine at an arbitrary place, and provides a screen of a specific color and a subject obscuring means of the same color to provide a subject. The present invention relates to a wired / wireless transmission system having an image chroma key function that synthesizes a photographed subject image by using a background image and chroma key technique.

Conventionally, vending machines, which allow users to take interesting pictures using digital cameras, pay a certain amount of cash (including postpaid payments), have been widely known to many people through vending machines for stickers.

The sticker photo vending machine selects a desired background from various wallpapers and takes a favorite scene while watching the user's reflection on the wallpaper. However, if you look at the background screen used in the sticker vending machine in more detail, you can see that the entire screen is not used as the background, but the background in which the space of the user's image is empty is used. That is, it can be seen that the background image is formed on the upper part, the lower part, or the side of the screen. Therefore, the user takes a picture in a state located in a space other than a background screen displayed on the screen.

Accordingly, the conventional sticker photo vending machine does not use a background screen covering the entire screen, there is a problem that the photographed picture is monotonous. In addition, there have been many attempts to synthesize a background screen and a photographed image to solve this problem, but it has been difficult to commercialize and commercialize it. This is because expensive equipment is required for image synthesis and it is difficult to process it in real time.

As a conventional image synthesis technique, there is a chroma keying technique. This technique combines two screens and inserts another screen into a designated color part that forms the background of the screen on which the subject is captured.

The chroma key technique takes a first visual source of a subject captured in front of screen imaging, which is made of a preset color and is of uniform brightness and is a clear and pure colored background, Another source, such as live video, digital computer images, photos, or movies, in such a way that the color of the background is omitted from the first source and the subject of the first source is superimposed on the second source to be inserted as the background. Nest above. The color of the screen is mainly blue or green.

In addition, the chroma key technique is based on a luminance key. Everything in the image above / below the set brightness level in the luminance key is output to the key and replaced by the color from the color generator or another image. In a chroma key, when the phase of the chroma signal corresponds to a photographic programmed state or states associated with a background color or color range behind the main subject, signals from other sources are inserted into the composite signal and appear at the output. Also, when the phase of the chroma signal deviates from that associated with the background color behind the main subject, video associated with the main subject appears in the output.

Chroma key techniques are widely used in tele-broadcasting such as tyle making, special effects and weather forecasting. In the case of weather forecasts, the viewer may appear to be standing in front of a large weather map, but in reality the forecaster is standing in front of a blue print, and the weather map consists of a separate screen. Chroma key technique replaces this blue part with weather map screen. That is, the weather map appears in the blue part and the original image appears in the part of the different color, that is, the video part of the forecaster.

The chroma key technique in television is realized in a hardware way.

A chroma key device is an electronic device that reads signals from a camera electronically and systematically removes certain components of an image to make them blank. This blank space is filled with video signals from other cameras to form an electronically combined screen from two cameras, creating a virtual video screen that does not actually exist.

The videoman has an adjustment in the adjustment table that adjusts the chroma key amplifier assigned to each particular camera. The adjustment is controlled by a phaser that sweeps the entire color spectrum 360 °, a clipper control that sets the rejection limit of the specified color within the video picture, and a gain control that adjusts the size of the signal by clipping and keying circuitry. It consists of a device (Gain Control). In fact, when you want to key out a part of a set to add color or brightness, the camera will illuminate that front. The videoman can make a keyout effect of any particular color by using the pager controls.

To perform this adjustment, the technical supervisor (TD) sets the program switcher so that the chroma key signal appears on the Effects Bus and the videoman monitors it. Here, another video signal source to be inserted into the area to be keyed out, which is the same effect as making a keyhole for the key to enter, is also concerned. TD sets a key to be used for broadcasting.

The videoman monitoring the effect bus containing the composite key signal adjusts the phaser for precise color rejection of the keyed out part, and clipping of the keyed part provides maximum effect and minimum noise. Or adjust the clipper and gain control to have image distortion. Note that the TD switcher also has another clipper (controller) that can perform the final manual adjustment if the TD requires a chroma key picture while broadcasting.

Most chromakey amplifiers have a timing adjuster that fine tunes the relationship between the two video signal sources used in the dual screen combination. There is a video hole in the screen of the keyed camera, in which the image from the secondary signal sources is inserted. In order for the two signals to be adjusted so that the inserted image does not overlap or deviate from the hole, the chroma key amplifier has a timing adjuster that allows fine adjustment of the hole to the right or left. Adjustments are always made while viewing the image as the final form on the effect bus, and adjustments minimize the occurrence of borders or overlaps around visually inserted visual effects.

However, this type of chroma key requires at least two cameras and three to four people. In addition, combining a synthesizer and other equipment for synthesizing a video signal in the middle requires too much cost, making it difficult for general users to use.

In order to solve this problem, a method of realizing the chroma key technique in software has emerged. This method can implement chroma key with only one camera and computer / program and is suitable for chroma key of still image rather than video. To this end, a computer system, a camera, a capture card, and a program are required.

First, the subject (user) is placed before printing of the color specified in the program. The camera then captures the still image with the capture card. In this image, the background and the subject of a specific color are separated. The subject is removed from the two separated images, that is, the background is discarded. Therefore, an image of a subject having an empty background can be obtained, and the image obtained from the predetermined background image is synthesized.

Important technologies used at this time include a technique of separating a subject from a background of a specific color and a technique of synthesizing an image of a separated subject with a background.

The technology of separating the subject and the background of a specific color is similar to that of Magic Wand Tool in general image editing programs such as Adobe's Photoshop, and the following process is performed.

The program can express each color as a number. Use this to set a value that is key to a particular color. If a color with that key value is found, the color is removed. This removed portion becomes blank, or transparent. In this way, the background image and the image of the subject which can be synthesized are obtained.

Several rules apply to compose a background image and a subject image. First, the horizontal and vertical sizes of the subject image and the background image should be the same. In addition, the image quality may be degraded as the synthesis is performed, so the image quality should be good.

When the subject image is raised while the background image created by such a rule is placed, only a background image of the transparent portion of the background image behind the subject image is visible because a specific portion of the subject image is transparent. This completes the chroma key synthesis of the image.

An example of image synthesis by a conventional chroma key technique is shown in FIG. 1. As shown in FIG. 1, the image of the subject and the background image may be synthesized using a conventional chroma key technique.

As described above, the background is removed from the first image 10 including the subject 14 and the background 12 of a specific color to generate an image of only the subject. Subsequently, the synthesized image 40 is generated by combining the second image 30 including the background image to be inserted with the subject image.

In this case, when the alpha image is to be synthesized, the alpha channel 25 obtained by extracting the outline 22 of the alpha image is generated, and the second image 30 is generated by combining with the background image. The second image 30 is a form in which the original background image 32 and the alpha image 34 are synthesized. The generated second image is synthesized with the subject image.

Therefore, the composite image 40 includes a background 42, a subject image 44, and an alpha image 46 of the second image 30.

However, in the case of image synthesis using the conventional chroma key technique, only the subject and the background image are synthesized. Therefore, there is a problem that does not satisfy the changing user needs.

In addition, since the chroma key technique is not applied in a form such that a sticker photo vending machine can be easily accessed and used by a general user, a demand for providing a vending machine using the chroma key technique is increasing.

Accordingly, an object of the present invention is to solve the problems of the prior art, the image chroma key function for synthesizing the background image and the photographed subject image in real time and the body part of the photographer (subject) as a background image It is to provide a wired and wireless transmission system.

1 is an exemplary diagram of image synthesis by a conventional chroma key technique.

2 is a schematic diagram of a system according to the present invention;

3 is a flowchart of a process of generating a synthesized image.

4 is a flowchart in which a subject image generation process is performed;

5A to 5C are exemplary views of image synthesis according to the present invention.

*** Explanation of main parts of drawing ***

100: vending machine 105: cash input

110: card recognition unit 115: input processing unit

120: display unit 125: voice transmission unit

130: image recording unit 135: memory

140: image processing unit 145: output unit

150: control unit 155: communication unit

160: server

In order to achieve the above object, the wired / wireless transmission system having an image chroma key function according to the present invention is installed in an arbitrary place, and the first image and the user generated by photographing a subject disposed in front of a background screen of a specific color. A wired / wireless transmission system having an image chroma key function of multi-synthesizing and modifying a selected background image to provide a composite image, comprising: a background screen on which a specific color is painted and arranged behind a subject; A predetermined shielding tool in which a color of a similar color range of a specific color is painted in a predetermined region or the object to which the color is painted is attached; An image photographing unit configured to generate a first image by photographing a subject wearing a masking device; A subject image generation module for generating a subject image by removing a color of a specific color and a similar color range on the first image, a second image generation module for generating a second image including a background image, and a first image and a second image. An image processing unit having an image synthesizing module for synthesizing and generating a synthesized image; And an output unit for outputting the synthesized image.

In addition, in order to achieve the above object, another embodiment of the wired and wireless transmission system having a video chroma key function according to the present invention, the background screen is painted a specific color and disposed behind the subject; An image photographing unit photographing a subject to generate a first image; A transmissive region insertion module for inserting a color having a specific color and a similar color range into a predetermined area of the first image by a user's input, and a subject image generating a subject image by removing a color of the specific color and the similar color range on the first image. An image processing unit including a generation module, a second image generation module for generating a second image including a background image, and an image synthesis module for synthesizing the first and second images to generate a synthesis image; And an output unit for outputting the synthesized image.

Preferably, the communication unit for receiving the updated background image via the Internet or wired or wireless communication network; And a memory for storing the received background image, wherein the communication unit transmits the synthesized image and information about a transmission position input by the user to a server for transmitting the composite image to the transmission position. In addition, the transmission position is characterized in that the mobile phone number.

More preferably, the output unit is characterized in that it comprises an output port for storing the synthesized image in a predetermined storage medium provided by the user.

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

2 is a block diagram of a system according to the present invention. Referring to FIG. 2, the system according to the present invention includes a wired / wireless transmission having an image chroma key function of photographing a user (subject) and synthesizing a selected background image and a subject image by using a chroma key technique. The server 100 includes a server 160 for transmitting data such as a module or a background image necessary for the operation of the system 100 and the wired / wireless transmission system 100 having a video chroma key function. The wired / wireless transmission system (hereinafter, referred to as a 'vending machine') having an image chroma key function according to the present invention is installed in an arbitrary place to provide a composite image to a user, and is preferably provided in the form of a vending machine.

The vending machine 100 according to the present invention selects a background image by a user's selection, photographs a user (subject) located in front of a background of a specific color, generates a subject image from which the background is removed, and synthesizes it with the background image to provide the user. do. In addition, when photographing the user, the user attaches an object painted with a specific color or a color similar to the specific color (hereinafter, referred to as 'similar color'), or wears a screening tool with a similar color painted in a certain area. As a result, when the image is synthesized, the user's body part may be synthesized as a background image to obtain an effect. In addition, similar color can be inserted by setting the size, position and shape of the area (hereinafter referred to as 'transmission area') where the user wants to achieve the same effect as the image penetrated in the captured image without using the obscurity tool. have. In this case, the same effect can be obtained by regenerating the image with a similar color inserted into the transmission region, and removing the background and the transmission region of the reproduced image and then combining the image with the background image.

The vending machine 100 according to the present invention includes a cash input unit 105 through which a user inputs cash for use of the vending machine 100, a credit card, etc., which the user inputs as a payment means for use of the vending machine 100. A card recognizing unit 110 for reading card information and performing payment processing, an input processing unit 115 for processing a user input, and a display unit for displaying information necessary for proceeding a processing process and a background image to be selected; 120), a voice output unit 125 for outputting a guide or a warning sound as a voice, an image photographing unit 130 for photographing a user (subject), a module for controlling and synthesizing the vending machine 100, an alpha image and a background Memory 135 for storing an image, the image processing unit 140 for synthesizing the background image selected by the user and the subject image photographed through the image photographing unit 130, an output unit for outputting the composite image ( 145), keyboard And a communication unit 155 that support data transfer with the controller 150 and a server 160 for controlling the operation of the system 100.

The vending machine 100 may photograph and provide a video in addition to a still image such as a photograph.

In addition, the vending machine 100 provides a multi-synthesis of synthesizing other images such as alpha images together, instead of synthesizing only the image of the subject and the background image in image synthesis. Therefore, more various composite images can be provided to the user. The synthesized image can be immediately modified by the user's selection. That is, by viewing the displayed composite image, when the user selects the correction, the correction may be applied to the composite image. In addition, when the user inputs the synthesized image to the vending machine and selects the correction of the synthesized image, the input synthesized image may be modified.

In addition, the vending machine 100 is provided in the rear where the user is located for shooting, the screen or printing (not shown, hereinafter referred to as the "background screen") that the specific color is painted, and the specific color or similar color area That is, it includes a masking tool (not shown) to which an object painted in the transmissive area or painted with similar colors is attached. The masking tool is provided to the user, and the user wears the masking tool when shooting.

In addition, the vending machine 100 may further include an advertisement display unit (not shown) for displaying an advertisement preset to the user. The advertisement display unit may be provided in the form of an advertisement tower and may display a still image or a video captured by the vending machine.

The input processing unit 115 according to the present invention is a means for receiving and processing input from a user. As the input processing unit 115, a conventional input means, that is, a keypad or a mouse may be used, and a touch screen may be used.

The display unit 120 according to the present invention displays the information necessary to proceed with the processing and the background image to be selected. That is, information for guiding the process to the user, a menu, and a background image selectable by the user are displayed.

The image capturing unit 130 according to the present invention photographs a user (subject) positioned in front of a background of a specific color to generate a first image including a background of a specific color and a subject image. Since the image capturing unit 130 needs to generate an image file, it uses equipment such as a digital camera. The specific color is a color of the background to be removed when the image processor 140 generates the subject image, and is a preset value. In addition, the similar color is a color within a preset range with a color similar to the specific color, and is recognized as being the same color as the specific color. Since the color can be represented in the form of numbers like 256 colors, the color is set as a number for the color.

As described above, the image capturing unit 130 may capture a still image or a moving image. In the case of a moving image, as in the case of a still image, the subject located in front of the background screen is photographed.

The memory 135 according to the present invention stores a module, a background image, an alpha image, and the like for controlling and synthesizing the vending machine 100. The background image is what the user chooses to composite with the subject. Data such as a module and a background image stored in the memory 135 may be updated by being transmitted from the server 160.

The alpha image is a different image from the background image, and is synthesized with the background image through the alpha channel generated through the outline extraction process. In this case, the subject may be synthesized on a screen produced as a background, and may be generated in a three-layered manner in which the subject is as if the subject exists between the background and the image of the alpha channel.

The image processor 140 according to the present invention synthesizes the subject image photographed by the image capturing unit 130 and the background image selected by the user using a chroma key technique to generate a synthesized image. The image processor 140 removes a background of a specific color from the first image to generate a subject image, extracts an outline except for the background of the alpha image, generates an alpha channel, and inserts an alpha image into the background image. A second image generating module for generating a second image and an image synthesizing module for synthesizing the second image with the subject image. If the alpha image is not inserted, the second image generating module generates a second image including only the background image. The generation of the alpha channel may be performed by the subject image generation module. The subject image generation process and the alpha channel generation process are similar.

An image synthesis process by the image processor 140 will be described in detail with reference to FIGS. 3 and 4.

The output unit 145 according to the present invention outputs a composite image. The output unit 145 prints the synthesized image or stores the synthesized image in a storage medium provided by the user. If the composite image is a still image, it is printed and provided on photo paper or printing paper by the user's selection. In addition, when the composite image is a still image or a moving image, the synthesized image may be stored in a storage medium provided by the user or a terminal equipped with the storage medium. In this case, the output unit 145 is made through an output port additionally provided.

In addition, the composite image may be transmitted to a location designated by the user. Transmission of the composite image is performed by the communication unit 155.

In addition, when the synthesized video is a moving picture, a CD in which the synthesized video is stored may be produced and provided. In the case of a video, the capacity is large, and thus there is a limit in storing in a transmission or storage medium.

The communication unit 155 according to the present invention supports data transmission with the server 160. The communication unit 155 is a means for supporting transmission and reception of data through the Internet or a wired or wireless communication network. When the user inserts a credit card for payment, the communication unit 155 transmits and receives data for payment processing and receives an updated module or background image from the server 160.

In addition, the communication unit 155 transmits the synthesized image to a location designated by the user. Transmission of the composite image is classified into a wired transmission to an e-mail or a wired terminal and a wireless transmission to a wireless terminal such as a mobile phone. In particular, in the case of a mobile phone, a composite image can be received and used as a background.

Transmission of the synthesized image may be made through the server 160. That is, the communication unit 155 transmits the composite image file and the information about the transmission position input by the user to the server 160, and the server 160 transmits the composite image file received to the transmission position. In this case, it is possible to prevent the configuration of the vending machine 100 from being complicated for file transfer.

The server 160 according to the present invention transmits data such as an updated module, a background image, or an alpha image to the vending machine 100 through the Internet or a wired or wireless communication network. The updated module includes a module for controlling the operation of the vending machine 100 and a module for image synthesis. In addition, when receiving the card information, such as a credit card entered by the user from the vending machine 100 and the payment processing request, it transmits the information to the corresponding institution and transmits the processed result to the vending machine 100. Also, the composite image file and the transmission position information are received from the vending machine 100, and the received composite image file is transmitted to the transmission position.

3 is a flowchart of a process of generating a synthesized image. Referring to FIG. 3, the process of generating a synthesized image has the following flow.

In generating a subject image, a color (specific color) of a background to be removed is set. The specific color is set in advance in the object image generating module of the image processor 140 and is set to a number for the specific color. In addition, a range of similar colors is set at the time of setting a specific color, so that the colors of the range of similar colors are recognized in the same way as the specific color, so that similar color portions are also removed.

The background image to be synthesized with the subject image is selected by the user (step S210). The background image is stored in the memory 135 of the vending machine 100 and is selected by the user.

In step S220, a user is selected to synthesize an alpha image.

If the user selects the synthesis of the alpha image in step S220, the alpha image is selected by the user (step S230).

The second image generating module of the image processor 140 generates an alpha channel for the selected alpha image (step S240), and generates a second image by synthesizing the background image and the alpha image (step S250). The composition of images is synthesized by an overlay method in which a specific image layer having a transparent background is placed on one background. In contrast, the subject image and the background image are synthesized by using the chroma key technique to image the subject and the background as one image.

If the user does not select the composition of the alpha image in step S220, generates a second image consisting of only the background image.

If the user does not select the synthesis of the alpha image in step S220, or if a second image in which the alpha image is synthesized is generated, the first image is generated (step S260). The first image includes a subject image and a specific color. It is made of a background, it is generated by the image capturing unit 130. That is, the first image is generated by positioning and photographing the user (subject) in front of the background screen of a specific color in step S200.

In this case, the user may be provided with and wear a shielding tool to which a specific color and similar color are painted in a predetermined region or to which an object in which the similar color is painted is attached. That is, an object painted with a color belonging to a similar color range of a specific color may be positioned on a part of the user's body. Therefore, the part where the similar color is located (hereinafter referred to as a 'transmission area') is removed together, and the background image is also synthesized as the transmission area, so that a user's body part is penetrated.

In addition, the generated first image may be displayed on the display 120, and the user may insert a similar color by selecting a position, a size, or a shape of the transmission area on the screen. When the user finishes inputting the position, size or shape of the transmission region, the first image with the similar color inserted according to the selection is reproduced. The regeneration process of the first image is performed by the transmission region insertion module of the image processor 140. In this case, the user can freely adjust the position, size, and shape of the transmission area, and accurately reflect the user's selection, compared to wearing the screening tool.

The subject image generating module of the image processor 140 generates a subject image by removing a background of a specific color from the first image. (Step S270) The user wears a masking tool having a transmission area painted therein and shoots the image on the first image. When the transmission region is set, the set transmission region is also removed. The process of removing a background and a transmission region of a specific color may include dividing the first image into predetermined area units, sequentially reading the divided regions, calculating color values, and calculating a color value in the same or similar color range as the set specific color value. If included, this is done by repeating the process. A process of generating the subject image will be described in detail with reference to FIG. 4.

The image synthesizing module of the image processor 140 generates a synthesized image by synthesizing the subject image and the second image (S280).

The output unit 145 outputs the synthesized image (step S290). The output of the synthesized image may be performed by printing, CD production, transmission, or storage in a storage medium according to a user's selection.

4 is a flowchart of a process of generating a subject image. Referring to FIG. 4, the process of generating a subject image has the following flow. As described above, the alpha channel generation process for the alpha image is also performed by the following process. In addition, the following process is performed by the subject image generating module of the image processor 140.

The first image is divided into predetermined area units (step S300). As the size of the area decreases, the accuracy of the subject image increases, so it is preferably divided into the minimum readable area.

The divided areas are sequentially read (step S310), and the color values of the read areas are calculated (step S320). The color values are numerical values for colors such as 256 colors, for the color of the corresponding areas. In addition, when the color of the read area is not a single color but a plurality of colors, the dominant color is used as the color value. That is, the color value of the widest color area is used. In this case, the average value of the colors may be obtained by giving a weight according to the area occupied by each color. Minimizing the size of the area in step S300 is to minimize the number of areas containing a plurality of colors.

The calculated color value is compared with the set color (step S330). That is, it is determined whether the color value of the corresponding area is the same as or in the range of similar colors.

If it is the same as the specific color or included in the range of similar colors in step S330, the corresponding area is removed (step S340). Through this process, the background and the transmission area of the specific color or similar color are removed.

If it is different from the specific color and is not included in the range of similar colors in step S330, it is determined whether the entire area has been processed (step S350).

If there is an unprocessed area in step S350, the process proceeds to the next area (step S360).

When the processing of the entire area is performed in step S350, a subject image is generated (step S370). That is, the subject image is an image including only regions that are not removed.

5A to 5C are exemplary views of image synthesis according to the present invention.

FIG. 5A illustrates a composite image 40 generated by combining a first image 10 having a transmission region added to a subject and a second image 30 having an alpha image synthesized with a background image.

The first image 10 is generated by adding the transmission region 16 to a portion of the subject 14 positioned on the background 12 having a specific color, and is generated by the image capturing unit 130 and the image processing unit 140. do. The image capturing unit 130 generates an image composed of the background 12 and the subject 14, and the image processing unit 140 adds the transmission region 16 to the image generated by the image capturing unit 130.

The second image 30 is generated by synthesizing the alpha image 20 and the background image selected by the user, and generated by the second image generating module. Therefore, the second image 30 includes a background image 32 and an alpha image 34. When the user does not select the alpha image 20, the second image 30 is composed of only the background image 32.

The first image 10 and the second image 30 are synthesized by the image synthesizing module of the image processor 140, and a synthesized image 40 is generated. The synthesized image 40 includes a background image 42 synthesized at a position of a specific color background, a subject image 44, an alpha image 46, and a background image 48 synthesized at a position of a transmission region.

FIG. 5B is a first image photographed while a user (subject) 14 attaches a screening tool 18 having a similar color or a screening tool 18 to which an object having a similar color is attached to the transmission region 16. The image 10 and the second image 30 are combined.

The first image 10 is generated by the image capturing unit 130 photographing a user (subject) wearing a masking tool having a transparent area painted or attached with a similar color, and positioned in front of a background screen of a specific color. . Accordingly, the first image 10 includes an image of the masking tool 18 to which the background 12 of the specific color, the user (subject) image 14, and the transmission region 16 are painted or attached.

The second image 30 is a composite of the alpha image 34 and the background image 32 selected by the user and is generated by the second image generating module of the image processor 140. The alpha image selected by the user is synthesized with the background image through the alpha channel 25 generation process. The alpha channel 25 is generated by extracting the outline 22 of the alpha image, and is performed by the object image generating module or the second image generating module of the image processor 140.

The synthesized image 40 is generated by combining the first image 10 and the second image 30 by the image combining module of the image processor 140. The synthesized image 40 includes a background image 42 synthesized at a position of a specific color background, a subject image 44, an alpha image 46, and a background image 48 synthesized at a position of a transmission region.

FIG. 5C is a diagram illustrating a method in which a user (subject) 14 inputs a transmission region 16 of similar color to a first image photographed to reproduce a first image, and synthesizes the second image to generate a synthesized image. .

The first image 10 captures the image of the user (subject) positioned in front of a background screen of a specific color by the image capturing unit 130, and transmits the transmissive region 16 of similar color according to the user's input to the captured image. Created by inserting The transmission region 16 may be adjusted in position, size, shape, etc. according to a user's input, and is inserted by the image processor 140. Accordingly, the first image 10 includes a background 12 of a specific color, a user (subject) image 14, and a transmission region 16 of a similar color.

The second image 30 is a composite of the alpha image 34 and the background image 32 selected by the user, and is generated by the second image generating module of the image processor 140.

The synthesized image 40 is generated by combining the first image 10 and the second image 30 by the image combining module of the image processor 140. The synthesized image 40 includes a background image 42 synthesized at a position of a specific color background, a subject image 44, an alpha image 46, and a background image 48 synthesized at a position of a transmission region.

As described above, the present invention can synthesize the background image and the subject image in real time, and can obtain the same effect as the body part of the subject is synthesized through the background image to solve the monotony of the conventional vending machine. There is a significant effect.

In addition, the application of the image synthesis technology, which was difficult for the general public to use due to cost and location constraints, can provide a more precise and realistic composite picture to the user.

In addition, by updating the background image and the alpha image used for the synthesis online, it is possible to widen the user's choice and provide a variety of composite image.

In addition, by providing the composite image to the user in various ways such as printing, CD production, transmission and storage, it is possible to widen the use of the composite image of the user.

While preferred embodiments of the invention have been described using specific terms, such descriptions are for illustrative purposes only and it is understood that various changes and modifications may be made therein without departing from the spirit and scope of the following claims. You must lose.

Claims (6)

Wired / wireless transmission with video chroma key that is installed at any place and provides a composite image by multi-compositing and modifying the first image created by photographing a subject placed in front of a background screen of a specific color and a user selected background image. As a system, A background screen on which the specific color is painted and disposed behind the subject; A predetermined shielding tool in which a color of the similar color range of the specific color is painted in a predetermined region or the object to which the color is painted is attached; An image photographing unit configured to generate the first image by photographing the subject wearing the masking tool; A subject image generation module for generating a subject image by removing the color of the specific color and the similar color range on the first image, a second image generation module for generating a second image including the background image, and the first image And an image processing module including an image synthesizing module for synthesizing the second image and generating the synthesized image. And Wire and wireless transmission system having an image chroma key function characterized in that it comprises an output unit for outputting the composite image. Wired / wireless transmission with video chroma key function installed at any place and providing composite image by multi-compositing and modifying the first image created by taking a picture of the subject placed in front of the background screen of a specific color and the background image selected by the user As a system, A background screen on which the specific color is painted and disposed behind the subject; An image photographing unit which photographs the subject to generate the first image; A transmissive region insertion module for inserting a color of the specific color and a similar color range into a predetermined area of the first image by an input of the user, and removing the color of the specific color and the similar color range from the first image A subject image generation module for generating an image, a second image generation module for generating a second image including the background image, and an image synthesis module for synthesizing the first image and the second image to generate the synthesized image; An image processor; And Wire and wireless transmission system having an image chroma key function characterized in that it comprises an output unit for outputting the composite image. The method according to claim 1 or 2, Communication unit for receiving the updated background image through the Internet or wired or wireless communication network; And Wire and wireless transmission system having a video chroma key function characterized in that it further comprises a memory for storing the received background image. The method of claim 3, wherein The communication unit, Wired / wireless transmission system having a video chroma key function characterized in that for transmitting the composite image and the information about the transmission position input by the user to the server for transmitting the composite image to the transmission position. The method of claim 4, wherein Wired and wireless transmission system having a video chroma key function, characterized in that the transmission location is a mobile phone number. The method according to claim 1 or 2, The output unit, And an output port configured to store the synthesized image in a predetermined storage medium provided by the user.