WO2021164162A1

WO2021164162A1 - Image photographing method and apparatus, and device

Info

Publication number: WO2021164162A1
Application number: PCT/CN2020/097476
Authority: WO
Inventors: 冯启哲
Original assignee: 深圳传音控股股份有限公司
Priority date: 2020-02-17
Filing date: 2020-06-22
Publication date: 2021-08-26
Also published as: CN111263063A

Abstract

Provided are an image photographing method and apparatus, and a device. The image photographing method is applied to an electronic device, wherein the electronic device is provided with a camera apparatus. The method comprises: after a camera apparatus is started, acquiring a first image captured by the camera apparatus, wherein the first image comprises a facial image; in the first image, determining the position of the facial image in the first image; according to the position of the facial image in the first image, processing the first image to obtain a second image, wherein the facial image is located at a first preset position in the second image; and outputting the second image. The quality of the photographed images is thus improved.

Description

Method, device and equipment for shooting images

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on February 17, 2020, the application number is 2020100962064, and the application name is "Methods, Apparatus and Equipment for Photographing Images", the entire contents of which are incorporated into this application by reference middle.

Technical field

The embodiments of the present application relate to the field of image capturing technologies, and in particular, to a method, device, and equipment for capturing images.

Background technique

At present, electronic devices such as mobile phones have the function of image shooting. The user can use the front camera of the electronic device to take a selfie.

In order to improve the quality of image shooting, the existing front camera devices generally provide the function of beautiful pictures, such as beautification or filters, which can allow users to adjust the color and contrast of the taken photos to make the photos more beautiful. In line with the public's aesthetics. However, the above method of making pictures only optimizes the color, whitening, microdermabrasion, etc., and improves the quality of the image to a limited extent. In addition, the general user does not have professional photography knowledge, and the composition of the image taken by the user is often not reasonable enough, resulting in the image The shooting quality is poor.

Summary of the invention

The embodiments of the present application provide a method, device, and equipment for shooting images, which improve the quality of image shooting.

In the first aspect, an embodiment of the present application provides a method for capturing an image, which is applied to an electronic device, and the electronic device is provided with a camera device, and the method includes:

After the camera device is started, acquiring a first image collected by the camera device, where the first image includes a human face image;

Determining the position of the face image in the first image in the first image;

Processing the first image according to the position of the face image in the first image to obtain a second image, where the face image is located at a first preset position in the second image;

The second image is output.

In a possible implementation manner, determining the position of the face image in the first image in the first image includes:

Performing face recognition on the first image to obtain the face image;

Determine the rectangular frame where the face image is located;

The position of the rectangular frame in the first image is determined as the position of the face image in the first image.

In a possible implementation manner, processing the first image to obtain the second image according to the position of the face image in the first image includes:

Determine the first area of the face image in the first image according to the position of the face image in the first image;

Determining a first preset position among a plurality of preset positions according to the first area;

According to the position of the face image in the first image and the first preset position, processing the first image to obtain a second image.

In a possible implementation manner, determining a first preset position among a plurality of preset positions according to the first area includes:

The first preset position is determined among the plurality of preset positions according to the first area and the preset correspondence, and the preset correspondence is the correspondence between the area and the preset location.

In a possible implementation manner, according to the position of the face image in the first image and the first preset position, processing the first image to obtain the second image includes:

Determining a cropping location and cropping size in the first image according to the position of the face image in the first image and the first preset position;

Processing the first image according to the trimming location and the trimming size to obtain a second image.

In a possible implementation manner, after outputting the second image, the method further includes:

Receive shooting instructions entered by the user;

According to the shooting instruction, the second image is determined to be a shooting image.

In a possible implementation manner, the method further includes:

Determining the ratio between the size of the face image and the size of the first image;

If the ratio is greater than or equal to the first threshold, generating and displaying first prompt information, where the first prompt information is used to prompt the user to stay away from the electronic device;

If the ratio is less than or equal to the second threshold, second prompt information is generated and displayed, and the second prompt information is used to prompt the user to approach the electronic device.

In a possible implementation manner, the method further includes:

Judging whether the face image is complete;

If not, then generate and display third prompt information, the third prompt information being used to prompt the user to stay away from the frame of the electronic device.

In a second aspect, an embodiment of the present application provides a device for capturing images, which is applied to an electronic device, and the electronic device is provided with a camera device, and the device includes:

An obtaining module, configured to obtain a first image collected by the camera device after the camera device is started, the first image including a face image;

A determining module, configured to determine the position of the face image in the first image in the first image;

A processing module, configured to process the first image to obtain a second image, and the face image is located at a first preset position in the second image;

The output module is used to output the second image.

In a possible implementation manner, the determining module is specifically configured to:

Performing face recognition on the first image to obtain the face image;

Determine the rectangular frame where the face image is located;

In a possible implementation manner, the processing module is specifically configured to:

In a possible implementation manner, the device further includes a receiving module:

The receiving module is configured to receive a shooting instruction input by a user;

The determining module is further configured to determine the second image as a captured image according to the shooting instruction.

In a possible implementation manner, the determining module is further configured to:

In a possible implementation manner, the device further includes a judgment module:

The judgment module is used to judge whether the face image is complete;

In a third aspect, an embodiment of the present application provides an image capturing apparatus, including: at least one processor and a memory;

The memory is used to store computer program instructions;

The at least one processor is configured to execute computer program instructions stored in the memory, so that the at least one processor executes the method for capturing an image according to any one of the first aspect.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having computer program instructions stored in the computer-readable storage medium, and when a processor executes the computer program instructions, any item as in the first aspect is implemented The described method of taking images.

According to the method, equipment and device for shooting images provided by the embodiments of the present application, when the user needs to shoot an image with a reasonable composition through the electronic device, the user can start the camera device in the electronic device, and the electronic device acquires the camera device during the shooting and framing process. The first image is collected, the first image includes a face image; the position of the face image in the first image is determined in the first image; the first image is processed according to the position of the face image in the first image The second image, the face image is located at the first preset position in the second image; the second image is output on the display screen of the electronic device, so that the user can obtain a reasonable composition image during the shooting and framing, which improves the image shooting the quality of.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic diagram of an application scenario of a method for photographing an image provided by an embodiment of the application;

FIG. 2 is a schematic flowchart of a method for capturing an image provided by an embodiment of the application;

FIG. 3 is a schematic diagram of determining the position of a face image in a first image according to an embodiment of the application;

Figure 4 is a schematic diagram of the golden composition rule provided by an embodiment of the application;

FIG. 5 is a schematic diagram of an image capturing process provided by an embodiment of the application;

FIG. 6 is a schematic flowchart of another method for photographing an image provided by an embodiment of the application;

FIG. 7 is a schematic diagram of determining the ratio between the size of a face image and the size of a first image provided by an embodiment of the application;

FIG. 8 is a schematic diagram of a process of judging whether a face image is complete according to an embodiment of the application;

FIG. 9 is a schematic structural diagram of an image capturing apparatus provided by an embodiment of the application;

FIG. 10 is a schematic structural diagram of another image capturing apparatus provided by an embodiment of the application;

FIG. 11 is a schematic structural diagram of yet another image capturing apparatus provided by an embodiment of the application;

FIG. 12 is a schematic diagram of the hardware structure of an image capturing apparatus provided by an embodiment of the application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

FIG. 1 is a schematic diagram of an application scenario of a method for capturing an image provided by an embodiment of the application. Please refer to Figure 1, including electronic device 101 and user 102. The electronic device 101 may be an electronic device with an image capturing function. For example, the electronic device 101 may include, but is not limited to, electronic devices such as smart phones, tablet computers, cameras, and personal digital assistants. An imaging device 103 is provided in the electronic device 101. The camera 103 may include a front camera and a rear camera. The number of the camera 103 can be one or more. The camera 103 can have multiple types. For example, the camera 103 can include a wide-angle camera and a macro camera. Device, telephoto camera, etc. The user 102 can collect an image through the camera 103. In the prior art, the electronic device 101 can collect the image through the camera 103, and process the facial image in the image by using the beauty function such as beautification or filters to obtain Higher quality image. However, this process only optimizes the color, whitening, microdermabrasion, etc., and does not consider the rationality of the composition of the image taken by the user. In this regard, this application improves the processing process of the image optimization.

In this application, when the user needs to take high-quality images through the electronic device 101, the user can start the camera device in the electronic device 101. In the process of shooting and framing, the electronic device can obtain the image including the face image through the camera device. The first image is processed according to the position of the face image in the first image to obtain a second image with a reasonable frame composition, so that the electronic device 101 can output the second image with a reasonable composition on its screen. In the above process, the electronic device 101 can process the image according to the position of the face image in the image, so as to obtain an image with a reasonable composition, so that the quality of the image taken by the user is higher.

Hereinafter, the technical solution shown in the present application will be described in detail through specific embodiments. It should be noted that the following specific embodiments can be combined with each other, and the same or similar content will not be repeated in different embodiments.

FIG. 2 is a schematic flowchart of a method for capturing an image provided by an embodiment of the application. See Figure 2. The method can include:

S201: After the camera device is started, a first image collected by the camera device is acquired.

The execution subject of the embodiments of the present application may be an electronic device, or may be an image capturing device provided in the electronic device. Optionally, the electronic device may be an electronic device with an image capturing function. For example, the electronic device may include, but is not limited to, electronic devices such as smart phones, tablet computers, cameras, and personal digital assistants. The electronic equipment is provided with a camera device. The camera device can include a front camera device and a rear camera device. The number of camera devices can be one or more. There can be multiple types of camera devices. For example, the camera device can include a wide-angle camera device. , Macro camera device, telephoto camera device, etc., this embodiment of the present application does not specifically limit it.

The first image may be an image obtained by an electronic device through a camera device. In the embodiment of the present application, the image may include a face image. Specifically, the number of face images may be one.

In the actual application process, when the user needs to obtain an image with a reasonable composition through the electronic device, the user can turn on the camera device of the electronic device. Optionally, the user can switch the front camera device or the rear camera device according to actual needs. After the camera device is started, the user can adjust the angle and position of the camera device to obtain the image to be collected in real time. The electronic device can be provided with a display screen, and the image collected by the camera device can be output on the display screen of the electronic device in real time.

Optionally, an option of a composition optimization function can be set in the electronic device. Before acquiring the first image, the user can choose whether to optimize the composition according to his own preferences.

S202: Determine the position of the face image in the first image in the first image.

Optionally, the position of the face image in the first image can be determined in the first image through the following feasible implementations: perform face recognition on the first image to obtain the face image; determine the rectangular frame where the face image is located ; Determine the position of the rectangular frame in the first image as the position of the face image in the first image.

In the following, with reference to FIG. 3, the above process of determining the position of the face image in the first image will be described in detail through a specific embodiment.

Fig. 3 is a schematic diagram of determining the position of a face image in a first image provided by an embodiment of the application. Please refer to Figure 3, including page 3A and page 3B.

Please refer to page 3A. After the first image is captured by the camera device, face recognition is performed on the first image to obtain a face image. The process of performing face recognition on the first image can refer to the prior art, which will not be repeated in the embodiment of the present application.

Please refer to page 3B. After obtaining the face image, determine the rectangular frame where the face image is located, and determine the position of the rectangular frame in the first image as the position of the face image in the first image. Specifically, as shown in page 3B As shown, the position of the rectangular frame in the first image can be represented by the distance between the four sides of the rectangular frame and the four frames of the image.

S203: According to the position of the face image in the first image, process the first image to obtain a second image, and the face image is located at a first preset position in the second image.

The second image may be an image obtained after processing the first image according to a composition rule. The first preset position may be a position of a face image with a reasonable composition obtained according to the composition rule. The composition rule may include but is not limited to the golden composition rule, the frame composition rule, the cross-line rule, and the like. Among them, the golden composition rule may also be referred to as the nine-square lattice composition rule, and the embodiment of the present application takes the golden composition rule as an example for specific description. Below, in conjunction with Figure 4, the specific implementation process of the golden composition rule will be described.

Fig. 4 is a schematic diagram of a golden composition rule provided by an embodiment of the application. Please refer to Figure 4, the golden section rule approximately divides the image into three equal parts. Specifically, the image is divided into three equal parts from the horizontal and vertical directions to form a nine-square grid. The four points obtained by crossing can be used as gold. The dividing point, these four lines can be used as the golden section line. When the subject is just placed on the golden section point or line, the position of the subject and the ratio of the division to the remaining space will be more coordinated, which can create a sense of balance in the picture, enhance visual comfort, and reflect the sense of beauty.

Optionally, the first image can be processed to obtain the second image according to the position of the face image in the first image through the following feasible implementation methods: according to the position of the face image in the first image, it is determined that the face image is The first area in the first image; according to the first area, the first preset position is determined among a plurality of preset positions; according to the position of the face image in the first image and the first preset position, the first image The second image is obtained by processing.

Wherein, the first area may be an area where the rectangular frame in the first image is located. The preset position can be the golden section point determined according to the composition rule. The number of preset positions can be multiple. Specifically, the preset positions can include: upper left third, upper right third, lower left third, and right Next three points. The first preset position may be a preset position closest to the first area, and the second image may be an image with a reasonable composition after processing the first image.

Optionally, the first preset position may be determined in a plurality of preset positions according to the first area through the following feasible implementation manners: the first preset position may be determined in the plurality of preset positions according to the corresponding relationship between the first area and the preset. Preset location.

Wherein, the preset correspondence relationship is the correspondence relationship between the area and the preset location. The first preset correspondence relationship may be the correspondence relationship between the preset location closest to the first area among the plurality of preset locations and the first area. For example, when the first area is the upper right corner area, the first preset correspondence may be The first area corresponds to the upper right third point. It should be noted that the foregoing is only illustrative of the correspondence between the region and the preset position in the form of an example. Of course, there may be other forms of indicating the correspondence between the region and the preset position.

Optionally, the first image can be processed to obtain the second image according to the position of the face image in the first image and the first preset position through the following feasible implementation modes: according to the position of the face image in the first image And the first preset position, determining the cropping location and cropping size in the first image; processing the first image according to the cropping location and cropping size to obtain a second image. It should be noted that before processing the first image, the first image is enlarged according to the ratio of the original image according to the trimming position and the trimming size, so that the processed second image has the same size as the first image.

In the actual application process, for example, when the face image is at the upper left corner of the first image, correspondingly, the position of the rectangular frame is also at the upper left corner of the first image. Therefore, it can be determined that the face image is at the upper left corner of the first image. The first area in the first image is the upper left corner area. According to the corresponding relationship between the first area and the preset, the first preset position can be determined as the upper left third point from a plurality of preset positions. Move the first image so that the position of the face image in the first image coincides with the first preset position. Specifically, the center of the rectangular frame coincides with the first preset position, and at the same time, perform the operation on the moved first image. Enlargement, so that the enlarged first image can include all the original first image, and according to the size of the original first image, the trimming position and trimming size of the moved first image are determined. The first image after the movement is processed according to the trimming position and the trimming size to obtain a second image with the same size as the first image.

S204. Output the second image.

The electronic device outputs the processed second image on its display screen.

Optionally, after outputting the second image, it may further include: receiving a photographing instruction input by the user; and determining the second image as a photographed image according to the photographing instruction.

In the actual application process, the user can see the second image with a reasonable composition through the display screen of the electronic device in real time during the shooting and framing process, and click the shooting button of the electronic device when he sees the second image that he is satisfied with. After the electronic device receives the photographing instruction input by the user, the second image is determined as the photographed image and saved in the electronic device.

On the basis of the foregoing embodiment, the process of capturing an image shown in the embodiment of the present application will be described in detail below with reference to FIG. 5 through a specific example.

FIG. 5 is a schematic diagram of an image capturing process provided by an embodiment of the application. In this example, the camera is a front camera as an example. See Figure 5, including page 5A-page 5F.

Please refer to page 5A. When the user needs to take an image with a reasonable composition through the electronic device, the user can turn on the camera device of the electronic device. And output the first image in real time on the display screen of the electronic device.

Please refer to page 5B. During the shooting and framing process, after acquiring the first image, the electronic device can perform face recognition on the first image to obtain a face image, determine the size of the rectangular frame according to the size of the face image, and combine the person The face image is placed in the rectangular frame, so that the face image fits within the rectangular frame. The position of the rectangular frame in the first image is determined as the position of the face image in the first image. Specifically, the center point of the rectangular frame is determined as the position of the face image in the first image.

Please refer to page 5C. According to the above composition rules, the image is divided into three equal parts from the horizontal and vertical directions to form a nine-square grid. Multiple preset positions are the golden section points obtained by crossing, respectively: the upper left third Point, upper right third, lower left third, lower right third. According to the position of the face image in the first image, it can be determined that the first area of the face image in the first image is the upper right corner, and according to the position of the first area, it can be determined that the first preset is among multiple preset positions The position is the upper right third point.

Please refer to page 5D, move the first image, and align the center point of the rectangular frame where the face image in the first image is located with the upper right third point. At this time, a blank area will appear in the upper part of the first image. The image is enlarged. Specifically, it is enlarged according to the ratio of the original first image, so that the blank area formed by the movement of the first image can be just removed. After the first image is enlarged, the trimming location and trimming size (shown in gray on page 5D) are determined in the first image, so that the trimmed second image has the same size as the first image.

Please refer to page 5E to crop the first image so that the second image can be completely output on the display screen of the electronic device. During the shooting and framing, the user can see the second image with optimized composition through the display screen in real time.

Please refer to page 5F. Optionally, after the electronic device outputs the second image, the user can shoot according to his own needs. After the electronic device receives the shooting instruction input by the user, the second image is determined as a captured image and saved in In electronic equipment, as shown on page 5F.

According to the method, equipment and device for shooting images provided by the embodiments of the present application, when the user needs to shoot an image with a reasonable composition through the electronic device, the user can start the camera device in the electronic device, and the electronic device acquires the camera device during the shooting and framing process. The first image is collected, the first image includes a face image; the position of the face image in the first image is determined in the first image; the first image is processed according to the position of the face image in the first image The second image, the face image is located at the first preset position in the second image; the second image is output on the display screen of the electronic device, so that a reasonable composition image can be obtained during the shooting and framing process, which improves the image shooting quality.

On the basis of the above-mentioned embodiment, the above-mentioned method of photographing an image will be described in further detail below through the embodiment shown in FIG. 6.

FIG. 6 is a schematic flowchart of another method for capturing an image provided by an embodiment of the application. Referring to Figure 6, the method may include:

S601. After the camera device is started, acquire a first image collected by the camera device.

It should be noted that the execution process of S601 can be referred to the execution process of S201, which will not be repeated here.

S602: Determine the position of the face image in the first image in the first image.

It should be noted that, for the execution process of S602, refer to the execution process of S202, which will not be repeated here.

S603: Determine the ratio between the size of the face image and the size of the first image.

Optionally, if the ratio is greater than or equal to the first threshold, first prompt information is generated and displayed. The first prompt information is used to prompt the user to stay away from the electronic device. For example, when the face image in the first image is large, specifically, When the ratio of the size of the face image to the size of the first image is greater than or equal to the first threshold, the first prompt information may be displayed on the display screen of the electronic device. For example, the first prompt information may include but is not limited to: "Please stay away Camera".

If the ratio is less than or equal to the second threshold, a second prompt message is generated and displayed. The second prompt message is used to prompt the user to approach the electronic device. For example, when the face image in the first image is small, specifically, the face image When the ratio of the size to the size of the first image is less than or equal to the second threshold, the second prompt information may be displayed on the display screen of the electronic device. For example, the second prompt information may include but is not limited to: "please approach the camera".

If the ratio is greater than the second threshold and less than the first threshold, it indicates that the ratio between the size of the face image and the size of the first image is within the normal shooting range, and the electronic device can perform a measurement on the first image displayed in this range Composition optimization processing.

In the following, with reference to FIG. 7, the process of determining the ratio between the size of the face image and the size of the first image shown in the embodiment of the present application will be described in detail through a specific example.

FIG. 7 is a schematic diagram of determining the ratio between the size of the face image and the size of the first image provided by an embodiment of the application. See Figure 7, including page 7A-page 7D.

Please refer to

pages

7A and 7B. When the face image in the first image is large, specifically, when the ratio of the size of the face image to the size of the first image is greater than or equal to the first threshold, the display screen of the electronic device can The first prompt message "please stay away from the camera" is displayed, and the user can move away from the camera device according to the prompt message.

Please refer to page 7C and page 7D. When the face image in the first image is small, specifically, when the ratio of the size of the face image to the size of the first image is less than or equal to the second threshold, the display screen of the electronic device can The second prompt message "Please approach the camera" is displayed. The user can approach the camera device according to the prompt information.

S604: Determine whether the face image is complete.

Optionally, if the ratio between the size of the face image and the size of the first image is greater than the second threshold and less than the first threshold, that is, the ratio between the size of the face image and the size of the first image is in the normal shooting range When it is within, it can be further judged whether the face image is complete.

Optionally, the following feasible implementations can be used to determine whether the face image is complete: when the face is at any one of the four frame positions of the first image, or when the face is at the four corners of the first image, the face If it cannot be displayed completely on the screen, it can be judged that the face image is incomplete.

If not, the electronic device generates and displays the third prompt message, which is used to prompt the user to stay away from the frame of the electronic device. For example, the third prompt message may include but is not limited to: "Please stay away from the frame or adjust the camera position" .

In the following, with reference to FIG. 8, the process of judging whether the face image shown in the embodiment of the present application is complete will be described in detail through a specific example.

FIG. 8 is a schematic diagram of a process of judging whether a face image is complete according to an embodiment of the application. See Figure 8, including page 8A-page 8B.

Please refer to page 8A-page 8B. For example, when the face is in any one of the four border positions of the first image, the face cannot be displayed completely on the display screen, and it can be judged that the face image is incomplete. At this time, the electronic device may generate and display the third prompt message "Please stay away from the frame or adjust the position of the camera".

S605. Process the first image according to the position of the face image in the first image to obtain a second image, where the face image is located at a first preset position in the second image.

It should be noted that the execution process of S605 can be referred to the execution process of S203, which will not be repeated here.

S606. Output the second image.

It should be noted that, for the execution process of S606, refer to the execution process of S204, which will not be repeated here.

In the method, equipment and device for shooting images provided by the embodiments of the present application, when a user needs to take an image with a reasonable composition through an electronic device, the user can start the camera device in the electronic device, and the electronic device acquires the camera device during the shooting and framing process. The first image acquired, the first image includes a face image; the position of the face image in the first image is determined in the first image; the first image is processed according to the position of the face image in the first image The second image, the face image is located at the first preset position in the second image; the second image is output on the display screen of the electronic device, so that a reasonable composition image can be obtained during the shooting and framing process, which improves the image shooting quality.

FIG. 9 is a schematic structural diagram of an image capturing apparatus provided by an embodiment of the application. Referring to FIG. 9, the device 10 includes:

The acquiring module 11 is configured to acquire a first image collected by the camera device after the camera device is started, and the first image includes a face image;

The determining module 12 is configured to determine the position of the face image in the first image in the first image;

The processing module 13 is configured to process the first image according to the position of the face image in the first image to obtain a second image, and the face image is located in the first preset of the second image. Set location

The output module 14 is used to output the second image.

An image capturing apparatus provided in an embodiment of the present application can execute the technical solutions shown in the foregoing method embodiments, and its implementation principles and beneficial effects are similar, and details are not described herein again.

In another possible implementation manner, the determining module is specifically configured to:

Performing face recognition on the first image to obtain the face image;

Determine the rectangular frame where the face image is located;

In another possible implementation manner, the processing module 13 is specifically configured to:

In another possible implementation manner, the determining module 12 is specifically configured to:

FIG. 10 is a schematic structural diagram of another image capturing apparatus provided by an embodiment of the application. Based on the embodiment shown in FIG. 7, referring to FIG. 10, the device 10 further includes a receiving module 15:

The receiving module 15 is configured to receive a shooting instruction input by a user;

The determining module 12 is further configured to determine the second image as a captured image according to the shooting instruction.

In another possible implementation manner, the determining module 12 is further configured to:

FIG. 11 is a schematic structural diagram of another image capturing apparatus provided by an embodiment of the application. Based on the embodiment shown in FIG. 10, referring to FIG. 11, the device 10 further includes a judgment module 16:

The judgment module 16 is used to judge whether the face image is complete;

The image capturing apparatus provided in the embodiments of the present application can execute the technical solutions shown in the foregoing method embodiments, and the implementation principles and beneficial effects are similar, and details are not described herein again.

FIG. 12 is a schematic diagram of the hardware structure of an image capturing apparatus provided by an embodiment of the application. As shown in FIG. 12, the image capturing apparatus 20 includes: at least one processor 21 and a memory 22. Among them, the processor 21 and the memory 22 are connected by a bus 23.

In a specific implementation process, at least one processor 21 executes the computer-executable instructions stored in the memory 22, so that the at least one processor 21 executes the above method for capturing images.

For the specific implementation process of the processor 21, refer to the foregoing method embodiments, and the implementation principles and technical effects are similar, and will not be repeated here in this embodiment.

In the embodiment shown in FIG. 12 above, it should be understood that the processor may be a central processing unit (English: Central Processing Unit, abbreviated as: CPU), and may also be other general-purpose processors or digital signal processors (English: Digital Signal Processor). Processor, referred to as DSP), application specific integrated circuit (English: Application Specific Integrated Circuit, referred to as ASIC), etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in combination with the invention can be directly embodied as executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.

The memory may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory.

The bus can be an Industry Standard Architecture (ISA) bus, Peripheral Component (PCI) bus, or Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, the buses in the drawings of this application are not limited to only one bus or one type of bus.

The present application also provides a computer-readable storage medium in which computer-executable instructions are stored. When the processor executes the computer-executable instructions, the method for capturing images as described above is implemented.

The above-mentioned computer-readable storage medium, the above-mentioned readable storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable and removable Programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. A readable storage medium may be any available medium that can be accessed by a general purpose or special purpose computer.

An exemplary readable storage medium is coupled to the processor, so that the processor can read information from the readable storage medium and can write information to the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may be located in Application Specific Integrated Circuits (ASIC for short). Of course, the processor and the readable storage medium may also exist in the device as discrete components.

The division of the units is only a logical function division, and there may be other divisions in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .

A person of ordinary skill in the art can understand that all or part of the steps in the foregoing method embodiments can be implemented by a program instructing relevant hardware. The aforementioned program can be stored in a computer readable storage medium. When the program is executed, it executes the steps including the foregoing method embodiments; and the foregoing storage medium includes: ROM, RAM, magnetic disk, or optical disk and other media that can store program codes.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. Scope.

Claims

A method for photographing an image, which is applied to an electronic device in which a camera device is provided, and the method includes:

After the camera device is started, acquiring a first image collected by the camera device, where the first image includes a human face image;

Determining the position of the face image in the first image in the first image;

Processing the first image according to the position of the face image in the first image to obtain a second image, where the face image is located at a first preset position in the second image;

The second image is output.
The method according to claim 1, wherein determining the position of the face image in the first image in the first image comprises:

Performing face recognition on the first image to obtain the face image;

Determine the rectangular frame where the face image is located;

The position of the rectangular frame in the first image is determined as the position of the face image in the first image.
The method according to claim 1, wherein processing the first image to obtain the second image according to the position of the face image in the first image comprises:

Determine the first area of the face image in the first image according to the position of the face image in the first image;

Determining a first preset position among a plurality of preset positions according to the first area;

According to the position of the face image in the first image and the first preset position, processing the first image to obtain a second image.
The method according to claim 3, wherein, according to the first area, determining the first preset position among a plurality of preset positions comprises:

The first preset position is determined among the plurality of preset positions according to the first area and the preset correspondence, and the preset correspondence is the correspondence between the area and the preset location.
The method according to claim 3, wherein, according to the position of the face image in the first image and the first preset position, processing the first image to obtain the second image comprises:

Determining a cropping location and cropping size in the first image according to the position of the face image in the first image and the first preset position;

Obtain a second image from the first image according to the trimming location and the trimming size.
The method according to claim 1, wherein after outputting the second image, further comprising:

Receive shooting instructions entered by the user;

According to the shooting instruction, the second image is determined to be a shooting image.
The method according to claim 1, wherein the method further comprises:

Determining the ratio between the size of the face image and the size of the first image;

If the ratio is greater than or equal to the first threshold, generating and displaying first prompt information, where the first prompt information is used to prompt the user to stay away from the electronic device;

If the ratio is less than the second threshold, second prompt information is generated and displayed, and the second prompt information is used to prompt the user to approach the electronic device.
The method according to claim 1, wherein the method further comprises:

Judging whether the face image is complete;

If not, then generate and display third prompt information, the third prompt information being used to prompt the user to stay away from the frame of the electronic device.
An image capturing device, wherein the device includes:

An acquiring module to acquire a first image including a face image;

A determining module to determine the position of the face image in the first image;

The processing module is configured to process the first image to obtain a second image, and the face image is located at a first preset position in the second image.
The device according to claim 9, wherein the determining module is further configured to:

Determining the ratio between the size of the face image and the size of the first image;

If the ratio is greater than or equal to the first threshold, generating and displaying first prompt information, where the first prompt information is used to prompt the user to stay away from the electronic device;

If the ratio is less than or equal to the second threshold, second prompt information is generated and displayed, and the second prompt information is used to prompt the user to approach the electronic device.
A computer-readable storage medium, wherein computer program instructions are stored in the computer-readable storage medium, and when the processor executes the computer program instructions, the captured image according to any one of claims 1 to 8 is realized Methods.