WO2017016069A1

WO2017016069A1 - Photographing method and terminal

Info

Publication number: WO2017016069A1
Application number: PCT/CN2015/091344
Authority: WO
Inventors: 周渝东
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2015-07-28
Filing date: 2015-09-30
Publication date: 2017-02-02
Also published as: CN105578028A

Abstract

Disclosed are a photographing method and a terminal. The method comprises: receiving a photographing instruction, and acquiring a first image frame and a second image frame by using a front camera and a rear camera; obtaining person image areas in the first image frame and the second image frame, and using the person image areas as a first person image area and a second person image area respectively; adjusting the first person image area according to a length parameter and a width parameter of the second person image area, so that the first person image area matches the second person image area; and synthesizing the adjusted first person image area into the second image frame to generate a group photograph. By means of the embodiments of the present invention, a group photograph comprising a photographer can be rapidly obtained by using an image synthesis technology when a photograph is taken, so as to save a user's time. Moreover, a ratio of person images in the photograph can further be adjusted, so that the person images in the group photograph are more harmony and artistically appealing.

Description

Photographing method and terminal

Technical field

The present invention relates to the field of image processing, and in particular, to a photographing method and a terminal.

Background technique

With the continuous development of communication technology, the camera equipment installed on various communication terminals is more and more advanced, and has been developed from a single camera to a dual camera. In particular, the front and rear dual camera modes of a camera mounted on the front and back of the communication terminal enable users to take self-portraits or photograph scenes at any time and place, record and share their own living conditions and beautiful things around them, and are well received by users.

At present, the communication terminal can provide a mode for the user to take photos simultaneously with the front and rear dual cameras, and provide the user with a photo with a picture-in-picture effect, but does not further synthesize the photos collected by the front and rear cameras; in the actual photographing process, the user It is often the case that a picture of a companion needs to be taken in a particular scene, but no one else can help take a picture at this time, so the user needs to first take a picture of the companion and then take a picture of himself. The photo is then combined with the image processing software to synthesize the image of the character into the photo taken by the companion. This process is inferior in real time and the steps are cumbersome and time consuming.

Summary of the invention

The embodiment of the invention provides a photographing method and a terminal, which can quickly obtain a photograph of a photograph taken by a photographer through image synthesizing technology, save user time, and adjust the proportion of a person image in the photograph, so that the character image in the photograph is more Coordinated and beautiful.

An embodiment of the present invention provides a photographing method, and the method includes:

Receiving a photographing instruction, and acquiring the first image frame and the second image frame through the front camera and the rear camera;

Obtaining a person image area in the first image frame and the second image frame as a first person image area and a second person image area, respectively;

Adjusting the first person image area according to the long parameter and the wide parameter of the second person image area a field to match the first person image area with the second person image area;

The adjusted first person image region is synthesized into the second image frame to generate a combined image.

Correspondingly, an embodiment of the present invention provides a terminal, where the terminal includes:

The image frame collecting unit is configured to receive a photographing instruction, and collect the first image frame and the second image frame through the front camera and the rear camera;

a person image acquiring unit, configured to acquire a person image area in the first image frame and the second image frame as a first person image area and a second person image area, respectively;

An image parameter adjustment unit, configured to adjust the first person image region according to the long parameter and the wide parameter of the second person image region, so that the first person image region matches the second person image region;

The illuminating image synthesizing unit is configured to synthesize the adjusted first person image region into the second image frame to generate a illuminating image.

In the embodiment of the present invention, the first image frame and the second image frame may be acquired by the front camera and the rear camera when receiving the photographing instruction; and the first image frame and the second image frame may also be acquired. a person image area, respectively, as a first person image area and a second person image area; and further adjusting the first person image area according to the long parameter and the wide parameter of the second person image area, so that the first person The image area is matched with the second person image area; finally, the adjusted first person image area is synthesized into the second image frame to generate a combined image, and the photo-synthesis technique can be used to quickly obtain the photo of the photographer. The photo saves user time, and can also adjust the proportion of the person image in the photo, so that the image of the person in the photo is more harmonious and beautiful.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the present invention. For the ordinary technicians, other drawings can be obtained based on these drawings without any creative work.

1 is a schematic flowchart of a photographing method according to an embodiment of the present invention;

2 is a schematic flow chart of another photographing method according to an embodiment of the present invention;

3 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

4 is a schematic structural diagram of an image parameter adjustment unit according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a combined image synthesizing unit according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In a specific implementation, the terminal mentioned in the embodiment of the present invention includes, but is not limited to, an electronic device such as a smart phone (such as an Android mobile phone or an IOS mobile phone), a tablet computer, a notebook computer, a palmtop computer, and a wearable smart device. The method described in the present invention is performed by a set of code stored in a memory that is executed in a computer system based on the von Neumann system.

A photographing method and terminal provided by the embodiment of the present invention will be specifically described below with reference to FIG. 1 to FIG.

FIG. 1 is a schematic flowchart of a photographing method according to an embodiment of the present invention. The photographing method shown in the figure may include the following steps:

S101. Receive a photographing instruction, and collect the first image frame and the second image frame by using the front camera and the rear camera.

In a specific implementation, after the camera application in the terminal is started to activate the photographing function, pressing the shutter button is regarded as inputting a photographing instruction by the user, and the photographing instruction is usually input by the user through an input device (physical keyboard or touch screen) of the terminal.

The camera mentioned in this embodiment may be a built-in camera of the terminal, such as a mobile phone with a front camera and a rear camera; this step starts the simultaneous acquisition of the front camera and the rear camera when the terminal receives the camera instruction. An image frame and a second image frame. If the terminal does not include a built-in camera, but is connected to an external camera, such as a PC (Personal Computer), the camera is not set in the PC, but the PC is connected to two external cameras (one is the front camera, the other is the other For the rear camera); this step starts the camera connected to the PC when receiving the camera instruction, and simultaneously acquires the first image frame and the second image frame acquired by the camera.

It should be noted that, in the embodiment of the present invention, the second image frame is a background image frame, and the first image frame is a bitmap image frame, so the image area of the person in the first image frame needs to be acquired, and The person image area in the first image frame is adjusted according to the person image area in the second image frame, and then the person image area in the adjusted first image frame is synthesized into the second image frame. Thus the background of the last generated composite image is the background in the second image frame, and the character includes the first image frame and the person captured in the second image frame.

Optionally, the step S101 may specifically include: receiving a photographing instruction, respectively acquiring a forward image frame and a back image frame by using a front camera and a rear camera; and setting the forward image frame as the first image frame, And setting the back image frame as a second image frame.

In the specific implementation, the rear camera usually takes more landscapes and can adjust the distance from the photographer arbitrarily, so that the whole body or the majority of the body of the photographer can be photographed; and the front camera is usually at a distance from the photographer. Closer, only the part of the photographer's head and shoulders can be captured and occupy more image areas in the image frame, so that the landscape area is smaller. Therefore, setting the image frame acquired by the rear camera as the second image frame can provide more background position to the image area of the person in the first image frame, and avoid the image area of the person in the two image frames during image synthesis. Severe overlapping intersections occur and more landscape areas can be preserved, making the resulting combined image more aesthetically pleasing.

Optionally, the step S101 may specifically include: receiving a photographing instruction, respectively acquiring a forward image frame and a back image frame by the front camera and the rear camera; and receiving the frame for the foreground image and the frame of the back image The first image frame confirmation command input by the target image frame sets the target image frame as a first image frame and another image frame as a second image frame.

In a specific implementation, the terminal may provide the user with the function of randomly selecting an image frame that needs to retain the background as the second image frame. The user may select an image frame as the second image frame according to the intention of the front camera and the rear camera respectively in the foreground image and the back image frame respectively collected by the front camera and the rear camera, and the other image frame is the first image frame. Image frame.

S102. Acquire a person image area in the first image frame and the second image frame as a first person image area and a second person image area, respectively.

In a specific implementation, the image area of the person in the first image frame and the second image frame may be acquired by an image recognition technology, where the character image area includes an avatar area of the character and the photographed body area. In order to obtain a more accurate image area of the person (including only the character part), the edge detection technique may be further combined to determine the outline of the person image, and the image area within the outline is set as the person image area.

S103. Adjust the first character according to the long parameter and the wide parameter of the second person image area. An image area to match the first person image area with the second person image area.

In a specific implementation, the long parameter and the wide parameter of the first person image area and the second person image area may be first acquired, wherein the long parameter refers to the maximum length of the height direction of the person image area, and the wide parameter refers to the shoulder width direction of the image area of the person. The maximum length.

In actual shooting, since the front camera is close to the photographer, the image area of the person in the captured image frame can only capture the head and shoulder portions, and occupy most of the image frame (larger parameter); The camera can capture the half body or the whole body of the subject because the distance is far from the photographer, and the image area of the person occupies a small area in the image frame (the long parameter is large). If the person image area in the first image frame is directly acquired into the second image frame, each character in the person image area in the last synthesized combined image may appear to be particularly uncoordinated. Therefore, the long parameter and the parameter of the first image region can be adjusted according to the long parameter and the wide parameter of the second person image region, so that the first person image region and the second person image region appear more harmonious and beautiful. For example, the long parameter and the wide parameter of the first person image region may be respectively adjusted to be the same as the first person image region long parameter and the wide parameter, and the aspect ratio value (long parameter and wide parameter) of the first person image region may also be The scale value is adjusted to be the same as the aspect ratio value of the second person image area.

S104. Synthesize the adjusted first person image region into the second image frame to generate a combined image.

In a specific implementation, when performing image synthesis, first, a composite position area of the first person image area in the second image frame (the combined position area is the same as the contour and size of the first person image area) may be determined, and the synthesis is performed. The pigmentation of the location area is then faded to the adjusted first person image area to the location; alternatively, the first person image area can be directly overlaid to the location.

Optionally, the step S104 may specifically include: determining a composite location area of the first person image region in the second image frame; and synthesizing the first character image region and synthesizing into the composite location region to generate a combined image .

In a specific implementation, an area having the same size and contour as the first person image area may be acquired as a composite position area at a position adjacent to and not intersecting the second person image area in the second image frame. Or providing the user with the function of arbitrarily selecting the composite location area, the user can freely select a certain area as the composite location area in the second image frame, for example, the user inputs a closed sliding track in the second image frame through the touch screen of the terminal, The closed sliding track contains the image area as the center, and the area having the same size and contour as the first person image area is the composite position area.

In the embodiment of the present invention, the first image frame and the second image frame may be acquired by the front camera and the rear camera when receiving the photographing instruction; and the first image frame and the second image frame may also be acquired. a person image area, respectively, as a first person image area and a second person image area; and further adjusting the first person image area according to the long parameter and the wide parameter of the second person image area, so that the first person The image area is matched with the second person image area; finally, the adjusted first person image area is synthesized into the second image frame to generate a combined image, and the photographed photo can be quickly obtained by the image synthesis technology. It saves user time, and can also adjust the proportion of the characters in the photo, so that the image of the person in the photo is more harmonious and beautiful.

FIG. 2 is a schematic flowchart of another photographing method according to an embodiment of the present invention. The photographing method shown in the figure may include the following steps:

S201. Receive a photographing instruction, and collect the first image frame and the second image frame by using a front camera and a rear camera.

In a specific implementation, after the camera application in the terminal is started to activate the photographing function, pressing the shutter button is regarded as inputting a photographing instruction by the user, and the photographing instruction is usually input by the user through an input device (physical keyboard or touch screen) of the terminal. Upon receiving the photographing instruction, the terminal simultaneously starts the front camera and the rear camera to acquire the first image frame and the second image frame.

S202. Acquire a person image area in the first image frame and the second image frame as a first person image area and a second person image area, respectively.

S203. Acquire long parameters and wide parameters of the first person image region and the second person image region.

In a specific implementation, the long parameter refers to the maximum length in the height direction of the image area of the person, and the wide parameter refers to the maximum length in the shoulder width direction of the image area of the person.

S204. Determine whether an aspect ratio value of the first person image region is greater than or equal to a length to width ratio value of the second person image region, and the aspect ratio value is a value of a long parameter ratio width parameter.

In the specific implementation, the aspect ratio value refers to the ratio of the long parameter and the wide parameter, when the character image area When the aspect ratio of the domain is large, the length of the person's height direction or the length of the shoulder width direction is small, and the entire character is relatively thin in terms of image effect; When the aspect ratio value is small, the length of the person's height direction photographed on the representative image area is small or the length of the shoulder width direction is large, and the entire character is relatively fat in terms of image effect.

Therefore, when the aspect ratio value of the first person image region is greater than or equal to the aspect ratio value of the second person image region, the person in the first person image region as a whole is thinner than the person in the second person image region. Step S205 is executed to keep the width parameter of the first person image region unchanged, and adjust the long parameter of the first person image region such that the aspect ratio values of the first person image region and the second person image region are equal. At this time, the characters in the first person image area and the second person image area appear to be relatively fat and thin as a whole.

When the aspect ratio value of the first person image region is smaller than the aspect ratio value of the second person image region, it is indicated that the character in the first person image region is generally fatter than the person in the second person image region, and step S206 may be performed. Go to step S208 to adjust the first person image area.

S205. If yes, adjust the long parameter of the first person image area such that the aspect ratio values of the first person image area and the second person image area are equal.

S206. If not, acquiring the character avatar area in the first person image area and the second person image area as the first avatar area and the second avatar area, respectively.

S207. Adjust the long parameter and the wide parameter of the first avatar area to be the same as the long parameter and the wide parameter of the second avatar area.

S208. Acquire a body region in the second person image region, and replace the first person image region by combining the adjusted first avatar region with the body region in the second person image region.

In a specific implementation, when the result of the determination in step S204 is NO, it is indicated that the character in the first person image region is generally fatter than the person in the second person image region, and is likely to be photographed in the first image region at this time. The length in the height direction is small, that is, the first image area may only capture the head and shoulders, and the second person image area is likely to take more than half of the body or the whole body. At this time, directly synthesizing the first person image region into the second image frame may cause the first person image region and the second person image region to be very uncoordinated, and the first person image region may completely cover the second person image region.

Therefore, the first person image area and the character avatar area in the second person image area are obtained as the first avatar area and the second avatar area, respectively, and the first avatar area is acquired by step S206. The long and wide parameters of the domain and the second avatar area. Then, the long parameter and the wide parameter of the first avatar area are respectively adjusted to be the same as the long parameter and the wide parameter of the second avatar area by step S207, so that the first avatar area and the second avatar area appear to be the same size. Further, the body region in the second person image region and the adjusted first avatar region are combined in step S208, and the previously acquired first person image is replaced, so that the first person image region and the second person image region are The image of the character has the same body area and different avatars. It looks more beautiful and harmonious, and has certain interest.

S209. Synthesize the adjusted first person image region into the second image frame to generate a combined image.

In the embodiment of the present invention, when the photographing instruction is received, the first image frame and the second image frame are collected by the front camera and the rear camera, and then the first person image region is adjusted according to the length and width ratio of the second person image region. The aspect ratio value. And compressing the first person image region when the person in the first person image region is thinner than the person in the second person image region, so that the person in the first person image region becomes fat, and then synthesizing into the second image frame to generate a photo Image; when the person in the image area of the first person is thicker than the person in the image area of the second person, it is very likely that the character in the image area of the first person only captures a small part of the upper body of the character, thus acquiring the first person a first avatar area in the image area and a body area in the second person image area, and combining the first avatar area with the body area in the second person image area, and then synthesizing into the second image frame to generate a photographic image, The photographing is quickly obtained by the image synthesizing technology to capture the photograph of the photograph taken by the photographer, saving the user's time, and also adjusting the proportion of the person image in the photograph, so that the image of the person in the photograph is more harmonious and beautiful.

Referring to FIG. 3, a schematic diagram of a terminal structure is provided in the embodiment of the present invention. As shown in the figure, the terminal may include at least an image frame acquiring unit 301, a character image acquiring unit 302, an image parameter adjusting unit 303, and a combined image synthesizing unit 304.

The image frame collecting unit 301 is configured to receive a photographing instruction, and collect the first image frame and the second image frame through the front camera and the rear camera.

The camera mentioned in this embodiment can be a built-in camera of the terminal, such as a front camera and a rear camera. The mobile phone of the camera is set; in this step, when the image frame acquisition unit 301 receives the photographing instruction, the first image frame and the second image frame simultaneously acquired by the front camera and the rear camera are activated. If the terminal does not include a built-in camera, but is connected to an external camera, such as a PC (Personal Computer), the camera is not set in the PC, but the PC is connected to two external cameras (one is the front camera, the other is the other For the rear camera); this step starts the camera connected to the PC when receiving the camera instruction, and simultaneously acquires the first image frame and the second image frame acquired by the camera.

It should be noted that, in the embodiment of the present invention, the second image frame is a background image frame, and the first image frame is a bitmap image frame, so the image area of the person in the first image frame needs to be acquired, and according to the second The person image area in the image frame adjusts the person image area in the first image frame, and then the character image area in the adjusted first image frame is synthesized into the second image frame. Thus the background of the last generated composite image is the background in the second image frame, and the character includes the first image frame and the person captured in the second image frame.

Further, the image frame collection unit 301 in this embodiment may be specifically configured to: receive a photographing instruction, and respectively acquire a pre-shooting image frame and a post-shooting image frame through a front camera and a rear camera; and set the proactive image frame It is a first image frame, and the back image frame is set as a second image frame.

Further, the image frame collection unit 301 in this embodiment may be specifically configured to: receive a photographing instruction, and respectively acquire a proactive image frame and a post-image frame by using a front camera and a rear camera; and receive a frame for the proactive image And a first image frame confirmation instruction inputting the target image frame in the back image frame, setting the target image frame as a first image frame and setting another image frame as a second image frame.

In a specific implementation, the terminal may provide the user with the function of randomly selecting an image frame that needs to retain the background as the second image frame. The user may select an image frame as the second image frame according to the intention of the terminal in the forward image frame and the back image frame respectively collected by the front camera and the rear camera according to the prompt of the terminal. Then another image frame is the first image frame.

The character image obtaining unit 302 is configured to acquire the person image regions in the first image frame and the second image frame as the first person image region and the second person image region, respectively.

In a specific implementation, the character image acquiring unit 302 may acquire a person image region in the first image frame and the second image frame by using an image recognition technology, where the character image region includes an avatar region of the character and the photographed body region. . In order to obtain a more accurate image area of the person (including only the character part), the edge detection technique may be further combined to determine the outline of the person image, and the image area within the outline is set as the person image area.

The image parameter adjustment unit 303 is configured to adjust the first person image region according to the long parameter and the wide parameter of the second person image region to match the first person image region with the second person image region.

In actual shooting, since the front camera is close to the photographer, the image area of the person in the captured image frame can only capture the head and shoulder portions, and occupy most of the image frame (larger parameter); The camera can capture the half body or the whole body of the subject because the distance is far from the photographer, and the image area of the person occupies a small area in the image frame (the long parameter is large). If the person image area in the first image frame is directly acquired into the second image frame, each character in the person image area in the last synthesized combined image may appear to be particularly uncoordinated. Therefore, the image parameter adjustment unit 303 can adjust the long parameter and the section parameter of the first image region according to the long parameter and the wide parameter of the second person image region, so that the first person image region and the second person image region appear more harmonious and beautiful. For example, the long parameter and the wide parameter of the first person image region may be respectively adjusted to be the same as the first person image region long parameter and the wide parameter, and the aspect ratio value (long parameter and wide parameter) of the first person image region may also be The scale value is adjusted to be the same as the aspect ratio value of the second person image area.

Further, referring to FIG. 4, a schematic structural diagram of an image parameter adjustment unit according to an embodiment of the present invention, the parameter adjustment unit 303 in the embodiment shown in the figure may include: a parameter acquisition subunit 3301, a parameter determination subunit 3302, and Parameter adjustment subunit 3303.

a parameter obtaining subunit 3301, configured to acquire long parameters and wide parameters of the first person image region and the second person image region;

The parameter determining sub-unit 3302 is configured to determine whether the aspect ratio value of the first person image area is greater than or equal to a length-to-width ratio value of the second person image area, and the aspect ratio is a long parameter ratio parameter Value

a parameter adjustment subunit 3303, configured to adjust a long parameter of the first person image region when the determination result of the parameter determination subunit is YES, such that the first person image region and the second person image region The length to width ratio values are equal.

In the specific implementation, the aspect ratio refers to the ratio of the long parameter and the wide parameter. When the aspect ratio of the image area of the person is large, the length of the person's height direction or the shoulder width of the person image area is larger. The length of the direction is small, and the whole character is relatively thin in terms of image effect; and when the aspect ratio of the image area of the person is small, the length of the person's height direction photographed on the representative image area is small or the shoulder width direction is small. The length is large, and the whole character is fatter in terms of image effect.

Therefore, when the determination result of the parameter determination sub-unit 3302 is YES: the aspect ratio value of the first person image region is greater than or equal to the aspect ratio value of the second person image region, indicating that the person in the first person image region as a whole It is thinner than the character in the image area of the second person. The parameter adjustment sub-unit 3303 keeps the width parameter of the first person image region unchanged, and adjusts the long parameter of the first person image region such that the aspect ratio values of the first person image region and the second person image region are equal. At this time, the characters in the first person image area and the second person image area appear to be relatively fat and thin as a whole.

The illuminating image synthesizing unit 304 is configured to synthesize the adjusted first person image region into the second image frame to generate a illuminating image.

In a specific implementation, when performing image synthesis, the combined image synthesizing unit 304 may first determine a composite position region of the first person image region in the second image frame (the composite position is an area having the same contour and size as the first person image region) And dimming the pigment of the composite position area and then synthesizing the adjusted first person image area to the position; or, the first person image area may be directly covered to the position.

Further, referring to FIG. 5, a schematic structural diagram of a combined image synthesizing unit provided by an embodiment of the present invention, the combined image synthesizing unit 304 in the present embodiment as shown in the figure may include: a position determining subunit 3401 and a combined synthesizing subunit 3402. .

a location determining sub-unit 3401, configured to determine a composite location area of the first person image region in the second image frame;

a composite synthesis sub-unit 3402 for synthesizing the first person image region and synthesizing to the composite bit Set the area to generate a composite image.

In a specific implementation, the position determining sub-unit 3401 may select, as the composite position area, an area having the same size and contour as the first person image area at a position adjacent to the left and right of the second person image area and not intersecting in the second image frame. Or providing the user with the function of randomly selecting the composite location area, the user can freely select a certain area as the composite location area in the second image frame, for example, the user inputs a closed sliding track in the second image frame through the touch screen of the terminal, the position The determining sub-unit 3401 is centered on the image area included in the closed sliding track, and acquires an area of the same size and contour as the first person image area as a combined position area.

Optionally, the person image acquiring unit 302 is further configured to: when the determining result of the parameter determining subunit is negative, acquiring the character avatar area in the first person image area and the second person image area, As the first avatar area and the second avatar area respectively;

The image parameter adjustment unit 303 is further configured to adjust the long parameter and the wide parameter of the first avatar area to be the same as the long parameter and the wide parameter of the second avatar area, respectively;

The character image obtaining unit 302 is further configured to acquire a body region in the second person image region;

Correspondingly, the terminal further includes:

The character image processing unit 305 is configured to replace the first person image area by combining the adjusted first avatar area with the body area of the second person image area.

In a specific implementation, when the determination result of the parameter determination sub-unit 3302 in the image parameter adjustment unit 303 is NO, it is indicated that the person in the first person image area is generally fatter than the person in the second person image area, and is It may be that the length of the height direction photographed in the first image area itself is small, that is, it is possible that the first image area only captures the head and the shoulder and the second person image area is likely to take more than half of the body or the whole body. At this time, directly synthesizing the first person image region into the second image frame may cause the first person image region and the second person image region to be very uncoordinated, and the first person image region may completely cover the second person image region.

Therefore, the person image acquisition unit 302 can acquire the first character image area and the character avatar area in the second person image area, respectively, as the first avatar area and the second avatar area, and acquire the first avatar area and the second Long and wide parameters of the avatar area. Then, the long parameter and the wide parameter of the first avatar area are respectively adjusted to be the same as the long parameter and the wide parameter of the second avatar area by the image parameter adjusting unit 303, so that the first avatar area and the second avatar area appear to be the same size. Pass through The character image processing unit 305 combines the body region in the second person image region and the adjusted first avatar region, and replaces the previously acquired first person image such that the first person image region and the second person image region The characters in the image have the same body area and different avatars, which look more beautiful and harmonious, and have a certain interest.

In the embodiment of the present invention, when the image frame acquiring unit 301 receives the photographing instruction, the first image frame and the second image frame are collected by the front camera and the rear camera; and the first image is acquired by the character image acquiring unit 302. The image frame and the person image area in the second image frame are respectively used as the first person image area and the second person image area; and further, the image parameter adjustment unit 303 is configured according to the long parameter and the wide parameter of the second person image area. Adjusting the first person image area to match the first person image area with the second person image area; finally, synthesizing the adjusted first person image area to the first by the combined image synthesizing unit 304 A composite image is generated in two image frames. The photo-synthesis technique can be used to quickly obtain a photo of the photographer, which saves the user's time, and can also adjust the proportion of the person image in the photo, so that the image of the person in the photo is more harmonious and beautiful.

For the foregoing various method embodiments, for the sake of brevity, they are all described as a series of action combinations, but those skilled in the art should understand that the present application is not limited by the described order of actions, because according to the present application, Some steps can be performed in other orders or at the same time. In the following, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and units involved are not necessarily required by the present application.

One of ordinary skill in the art can understand that all or part of the process of implementing the foregoing embodiments can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The photographing method and the terminal disclosed in the embodiments of the present invention are described in detail above. The above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto. Therefore, the present invention claims Equivalent changes made are still within the scope of the invention.

Claims

A photographing method, comprising:

Receiving a photographing instruction, and acquiring the first image frame and the second image frame through the front camera and the rear camera;

Obtaining a person image area in the first image frame and the second image frame as a first person image area and a second person image area, respectively;

And adjusting, according to the long parameter and the wide parameter of the second person image region, the first person image region to match the first person image region with the second person image region;

The adjusted first person image region is synthesized into the second image frame to generate a combined image.
The method according to claim 1, wherein the adjusting the first person image area according to the long parameter and the wide parameter of the second person image area comprises:

Obtaining a long parameter and a wide parameter of the first person image area and the second person image area;

Determining whether the aspect ratio value of the first person image region is greater than or equal to the aspect ratio value of the second person image region, and the aspect ratio value is a value of a long parameter ratio width parameter;

If so, the long parameter of the first person image area is adjusted such that the aspect ratio values of the first person image area and the second person image area are equal.
The method according to claim 2, wherein if the aspect ratio value of the first person image region is smaller than the aspect ratio value of the second person image region, the method further comprises:

Obtaining a character avatar area in the first person image area and the second person image area as a first avatar area and a second avatar area, respectively;

Adjusting the long parameter and the wide parameter of the first avatar area to be the same as the long parameter and the wide parameter of the second avatar area;

And acquiring the body region in the second person image region, and replacing the first person image region by combining the adjusted first avatar region with the body region in the second person image region.
The method according to claim 1, wherein the synthesizing the adjusted first person image region into the second image frame to generate a photographed image comprises:

Determining a composite location area of the first person image region in the second image frame;

The first person image area and the composite image area are combined to generate a combined image.
The method according to claim 1, wherein the receiving the photographing instruction, acquiring the first image frame and the second image frame by the front camera and the rear camera comprises:

Receiving a photographing instruction, respectively acquiring a forward image frame and a back image frame through the front camera and the rear camera;

Setting the proactive image frame as a first image frame and setting the post-image frame as a second image frame; or

Receiving a first image frame confirmation instruction for the target image frame input in the proactive image frame and the post-image frame, setting the target image frame as a first image frame, and setting another image frame as a first image frame Two image frames.
A terminal, comprising:

The image frame collecting unit is configured to receive a photographing instruction, and collect the first image frame and the second image frame through the front camera and the rear camera;

a person image acquiring unit, configured to acquire a person image area in the first image frame and the second image frame as a first person image area and a second person image area, respectively;

An image parameter adjustment unit, configured to adjust the first person image region according to the long parameter and the wide parameter of the second person image region, so that the first person image region matches the second person image region;

The illuminating image synthesizing unit is configured to synthesize the adjusted first person image region into the second image frame to generate a illuminating image.
The terminal according to claim 6, wherein the image parameter adjustment unit comprises:

a parameter obtaining subunit, configured to acquire long parameters and wide parameters of the first person image area and the second person image area;

a parameter determining subunit, configured to determine whether an aspect ratio value of the first person image region is greater than or equal to a length to width ratio value of the second person image region, and the aspect ratio is a long parameter ratio width parameter Value

a parameter adjustment subunit, configured to: when the determination result of the parameter determination subunit is YES, adjust a long parameter of the first person image area, so that the first person image area and the second person image area are long The width ratio values are equal.
The terminal according to claim 7, wherein the person image acquisition unit is further configured to acquire the first person image area and the second person when the determination result of the parameter determination subunit is negative a character avatar area in the image area, as a first avatar area and a second avatar area, respectively;

The image parameter adjustment unit is further configured to adjust the long parameter and the wide parameter of the first avatar area to be the same as the long parameter and the wide parameter of the second avatar area, respectively;

The character image obtaining unit is further configured to acquire a body region in the image area of the second person;

The terminal further includes:

The character image processing unit is configured to replace the first person image area by combining the adjusted first avatar area with the body area of the second person image area.
The terminal according to claim 6, wherein the combined image synthesizing unit comprises:

a position determining subunit, configured to determine a composite position area of the first person image area in the second image frame;

And a composite photo subunit for generating a photographed image by synthesizing the first person image region and synthesizing into the composite position region.
The terminal according to claim 6, wherein the image frame collection unit is specifically configured to:

Receiving a photographing instruction, respectively acquiring a forward image frame and a back image frame through the front camera and the rear camera;

Setting the proactive image frame as a first image frame and setting the post-image frame as a second image frame; or

Receiving a first image frame confirmation instruction for the target image frame input in the proactive image frame and the post-image frame, setting the target image frame as a first image frame, and setting another image frame as a first image frame Two image frames.