CN108156366A - A kind of image capturing method and mobile device based on dual camera - Google Patents

本发明实施例提供了一种基于双摄像头的图像拍摄方法和移动装置，所述双摄像头包括第一摄像头，以及第二摄像头；所述的方法包括：当接收到拍摄指令时，所述第一摄像头拍摄第一图像，所述第二摄像头拍摄第二图像；获取所述第一图像的主体区域图像以及所述第二图像的背景区域图像；将所述主体区域图像与所述背景区域图像结合，生成目标图像；展示所述目标图像。本发明实施例解决了现有技术中在主体和背景光线不均衡的情况下，拍摄得到的图像中主体区域曝光量不够/过量，或者背景区域曝光量过量/不够的问题。

Embodiments of the present invention provide an image shooting method and mobile device based on dual cameras, the dual cameras include a first camera and a second camera; the method includes: when receiving a shooting instruction, the first The first image is captured by the camera, and the second image is captured by the second camera; the subject area image of the first image and the background area image of the second image are acquired; the subject area image is combined with the background area image , generate the target image; display the target image. The embodiment of the present invention solves the problem in the prior art that the exposure of the subject area in the captured image is insufficient/overexposed or the exposure of the background area is over/underexposure in the case of unbalanced light between the subject and the background.

一种基于双摄像头的图像拍摄方法和移动装置A kind of image shooting method and mobile device based on dual cameras

技术领域technical field

本发明涉及信息处理技术领域，特别是涉及一种基于双摄像头的图像拍摄方法和一种基于双摄像头的图像拍摄装置。The present invention relates to the technical field of information processing, in particular to an image capturing method based on dual cameras and an image capturing device based on dual cameras.

背景技术Background technique

科技的进步，使得智能移动终端的功能越来越丰富，现在的智能移动终端除了具备基础的通讯功能，比如打电话、发短信之外，还具备娱乐、影音、拍照等功能。The advancement of science and technology has made the functions of smart mobile terminals more and more abundant. In addition to basic communication functions, such as making calls and sending text messages, today's smart mobile terminals also have entertainment, audio-visual, and photo-taking functions.

市面上现有的部分智能移动终端都只采用一颗摄像头进行拍照，这样在主体和背景光线均衡的情况下，拍摄出来的图像主体和背景的曝光量也都是正常的，即图像中的主体和背景都是彩色的。但是在主体和背景光线不均衡的情况下，比如在逆光的情况下，拍摄出来的图像就会出现主体几乎是黑白、背景是彩色的效果。如果想拍出主体是彩色的效果，那么在拍摄时，就需要基于主体进行曝光，但是这样拍摄出来图像虽然主体是彩色的，但是背景的色彩就会因为曝光量不正常而出现不正常的情况。Some existing smart mobile terminals on the market only use one camera to take pictures. In this way, when the light of the subject and the background is balanced, the exposure of the subject and the background of the captured image is also normal, that is, the subject in the image and background are colored. However, when the light between the subject and the background is unbalanced, such as in the case of backlighting, the captured image will have the effect that the subject is almost black and white and the background is colored. If you want to shoot the effect that the subject is in color, then you need to perform exposure based on the subject when shooting. However, although the subject is in color in the image taken in this way, the color of the background will be abnormal due to the abnormal exposure. .

虽然市面上也有部分智能移动终端采用两颗摄像头进行拍照，但是也只是将两颗摄像头拍摄的图像进行简单的色温叠加，在主体和背景光线不均衡的情况下，拍摄的图像依然会出现上述问题。Although some smart mobile terminals on the market use two cameras to take pictures, they only simply superimpose the color temperature of the images taken by the two cameras. When the light of the subject and the background is unbalanced, the above-mentioned problems will still appear in the captured images. .

发明内容Contents of the invention

鉴于上述问题，本发明实施例提出了一种基于双摄像头的图像拍摄方法和相应的一种基于双摄像头的图像拍摄移动装置，以解决在主体和背景光线不均衡的情况下，拍摄的图像曝光不足的问题。In view of the above problems, the embodiment of the present invention proposes a dual-camera-based image capture method and a corresponding dual-camera image capture mobile device to solve the problem of exposure of captured images when the subject and background light are unbalanced. Insufficient problem.

为了解决上述问题，本发明实施例公开了一种基于双摄像头的图像拍摄方法，应用于移动装置，所述双摄像头包括第一摄像头，以及第二摄像头；所述的方法包括：In order to solve the above problems, an embodiment of the present invention discloses an image capturing method based on a dual camera, which is applied to a mobile device. The dual camera includes a first camera and a second camera; the method includes:

当接收到拍摄指令时，所述第一摄像头拍摄第一图像，所述第二摄像头拍摄第二图像；When a shooting instruction is received, the first camera takes a first image, and the second camera takes a second image;

获取所述第一图像的主体区域图像以及所述第二图像的背景区域图像；acquiring a subject area image of the first image and a background area image of the second image;

将所述主体区域图像与所述背景区域图像结合，生成目标图像；combining the subject area image with the background area image to generate a target image;

展示所述目标图像。Display the target image.

相应的，本发明实施例公开了一种基于双摄像头的图像拍摄移动装置，所述双摄像头包括第一摄像头，以及第二摄像头；所述的移动装置包括：Correspondingly, the embodiment of the present invention discloses an image capture mobile device based on dual cameras, the dual cameras include a first camera and a second camera; the mobile device includes:

当接收到拍摄指令时，所述第一摄像头用于拍摄第一图像，所述第二摄像头用于拍摄第二图像；When a shooting instruction is received, the first camera is used to take a first image, and the second camera is used to take a second image;

获取模块，用于获取所述第一图像的主体区域图像以及所述第二图像的背景区域图像；an acquisition module, configured to acquire a subject area image of the first image and a background area image of the second image;

生成模块，用于将所述主体区域图像与所述背景区域图像结合，生成目标图像；A generating module, configured to combine the subject area image with the background area image to generate a target image;

展示模块，用于展示所述目标图像。A display module, configured to display the target image.

本发明实施例包括以下优点：Embodiments of the present invention include the following advantages:

在本发明实施例中，智能移动终端具有第一摄像头，以及第二摄像头，当智能移动终端接收到拍摄指令时，控制第一摄像头拍摄第一图像，第二摄像头拍摄第二图像，然后获取第一图像的主体区域，以及，第二图像的背景区域，再将所述主体区域与所述背景区域结合，生成目标图像，最后展示所述目标图像。这样，在主体和背景光线不均衡的情况下，拍摄得到的图像中主体区域和背景区域依然都有正常的曝光量，从而解决了现有技术中在主体和背景光线不均衡的情况下，拍摄得到的图像中主体区域曝光量不够/过量，或者背景区域曝光量过量/不够的问题。In the embodiment of the present invention, the smart mobile terminal has a first camera and a second camera. When the smart mobile terminal receives a shooting instruction, it controls the first camera to take a first image, the second camera to take a second image, and then obtains the second image. The main body area of the first image, and the background area of the second image, and then combine the main body area and the background area to generate a target image, and finally display the target image. In this way, in the case of unbalanced subject and background light, both the subject area and the background area of the captured image still have normal exposure, thus solving the problem of shooting under the condition of unbalanced subject and background light in the prior art. In the resulting image, the subject area is under/overexposed, or the background area is over/underexposed.

附图说明Description of drawings

图1是本发明的一种基于双摄像头的图像拍摄方法实施例的步骤流程图；Fig. 1 is a flow chart of the steps of an embodiment of an image capturing method based on dual cameras of the present invention;

图2是本发明的一种基于双摄像头的图像拍摄移动装置实施例的结构框图。FIG. 2 is a structural block diagram of an embodiment of an image capture mobile device based on dual cameras of the present invention.

具体实施方式Detailed ways

为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

参照图1，示出了本发明的一种基于双摄像头的图像拍摄方法实施例的步骤流程图，所述方法应用于移动装置，所述双摄像头包括第一摄像头，以及第二摄像头。Referring to FIG. 1 , it shows a flow chart of steps of an embodiment of an image capturing method based on dual cameras of the present invention, the method is applied to a mobile device, and the dual cameras include a first camera and a second camera.

本申请中的双摄像头指的是智能移动终端中的双摄像头，在本申请中，智能移动终端可以具有如下特点：The dual cameras in this application refer to the dual cameras in the smart mobile terminal. In this application, the smart mobile terminal may have the following characteristics:

(1)在硬件体系上，设备具备中央处理器、存储器、输入部件和输出部件，也就是说，设备往往是具备通信功能的微型计算机设备。另外，还可以具有多种输入方式，诸如键盘、鼠标、触摸屏、送话器和摄像头等，并可以根据需要进行调整输入。同时，设备往往具有多种输出方式，如受话器、显示屏等，也可以根据需要进行调整；(1) In terms of hardware system, the device has a central processing unit, memory, input components and output components, that is to say, the device is often a microcomputer device with communication functions. In addition, it can also have a variety of input methods, such as keyboard, mouse, touch screen, microphone and camera, etc., and the input can be adjusted according to needs. At the same time, equipment often has multiple output methods, such as receivers, display screens, etc., which can also be adjusted according to needs;

(2)在软件体系上，设备必须具备操作系统，如Windows Mobile、Symbian、Palm、Android、iOS等。同时，这些操作系统越来越开放，基于这些开放的操作系统平台开发的个性化应用程序层出不穷，如通信簿、日程表、记事本、计算器以及各类游戏等，极大程度地满足了个性化用户的需求；(2) In terms of software system, the device must have an operating system, such as Windows Mobile, Symbian, Palm, Android, iOS, etc. At the same time, these operating systems are becoming more and more open, and personalized applications developed based on these open operating system platforms emerge in an endless stream, such as address books, calendars, notepads, calculators, and various games, which greatly satisfy the needs of individual users. Customize the needs of users;

(3)在通信能力上，设备具有灵活的接入方式和高带宽通信性能，并且能根据所选择的业务和所处的环境，自动调整所选的通信方式，从而方便用户使用。设备可以支持GSM、WCDMA、CDMA2000、TDSCDMA、Wi-Fi以及WiMAX等，从而适应多种制式网络，不仅支持语音业务，更支持多种无线数据业务；(3) In terms of communication capabilities, the device has flexible access methods and high-bandwidth communication performance, and can automatically adjust the selected communication method according to the selected business and the environment, so that it is convenient for users to use. The device can support GSM, WCDMA, CDMA2000, TDSCDMA, Wi-Fi and WiMAX, etc., so as to adapt to various standard networks, not only support voice services, but also support various wireless data services;

(4)在功能使用上，设备更加注重人性化、个性化和多功能化。随着计算机技术的发展，设备从“以设备为中心”的模式进入“以人为中心”的模式，集成了嵌入式计算、控制技术、人工智能技术以及生物认证技术等，充分体现了以人为本的宗旨。由于软件技术的发展，设备可以根据个人需求调整设置，更加个性化。同时，设备本身集成了众多软件和硬件，功能也越来越强大。(4) In terms of functional use, the equipment pays more attention to humanization, personalization and multi-function. With the development of computer technology, the equipment has entered the "human-centered" mode from the "equipment-centric" mode, integrating embedded computing, control technology, artificial intelligence technology and biometric authentication technology, which fully embodies the purpose of people-oriented . Thanks to the development of software technology, the device can be adjusted according to individual needs and more personalized. At the same time, the device itself integrates a lot of software and hardware, and its functions are becoming more and more powerful.

另外，在本申请中，所述智能移动终端具有第一摄像头和第二摄像头。其中，第一摄像头和第二摄像头位于同一个平面，例如同时位于移动终端背面。但是，哪个摄像头是第一摄像头，哪个摄像头是第二摄像头本申请并不作限制，例如，移动终端有A、B两个摄像头，可以将A作为第一摄像头，B作为第二摄像头，也可以将A作为第二摄像头，将B作为第一摄像头。In addition, in this application, the smart mobile terminal has a first camera and a second camera. Wherein, the first camera and the second camera are located on the same plane, for example, they are located on the back of the mobile terminal at the same time. However, this application does not limit which camera is the first camera and which camera is the second camera. A is used as the second camera, and B is used as the first camera.

在本发明一种优选实施例中，所述第一摄像头为彩色摄像头，所述第二摄像头为黑白摄像头，In a preferred embodiment of the present invention, the first camera is a color camera, and the second camera is a black and white camera,

或，or,

所述第一摄像头为彩色摄像头，所述第二摄像头为彩色摄像头。The first camera is a color camera, and the second camera is a color camera.

所谓黑白摄像头，指的是拍摄的图像是黑白的，所谓彩色摄像头，指的是拍摄的图像是彩色的。The so-called black-and-white camera means that the captured images are in black and white, and the so-called color camera means that the captured images are in color.

所述的方法具体可以包括如下步骤：Described method specifically can comprise the steps:

步骤101，当接收到拍摄指令时，所述第一摄像头拍摄第一图像，所述第二摄像头拍摄第二图像；Step 101, when a shooting instruction is received, the first camera shoots a first image, and the second camera shoots a second image;

当智能移动终端处于拍摄模式时，用户可以通过智能移动终端的实体按键，例如拍摄按钮，进行拍摄，也可以通过虚拟按钮，例如屏幕上的拍摄按钮，进行拍摄。When the smart mobile terminal is in the shooting mode, the user can take a picture through a physical button of the smart mobile terminal, such as a shooting button, or through a virtual button, such as a shooting button on the screen.

当用户按下拍摄按钮后，智能移动终端的中央处理器就会同时发送拍摄指令给第一摄像头和第二拍摄头，第一摄像头接收到拍摄指令后，就会拍摄一张第一图像，第二摄像头接收到拍摄指令后，就会拍摄一张第二图像。When the user presses the shooting button, the central processing unit of the smart mobile terminal will send a shooting instruction to the first camera and the second camera at the same time. After the first camera receives the shooting instruction, it will take a first image. After receiving the shooting instruction, the second camera will take a second image.

在本发明一种优选实施例中，所述第一摄像头采集第一图像，所述第二摄像头采集第二图像的步骤包括：In a preferred embodiment of the present invention, the first camera captures a first image, and the second camera captures a second image comprising:

所述第一摄像头生成预览图像；The first camera generates a preview image;

识别所述预览图像是否包含人脸；identifying whether the preview image contains a human face;

若是，则将包含人脸的区域作为所述预览图像中的主体区域；If so, the area containing the human face is used as the subject area in the preview image;

基于所述主体区域进行曝光，拍摄第一图像；performing exposure based on the subject area, and taking a first image;

将除所述主体区域以外的区域作为所述预览图像中的背景区域；using an area other than the subject area as a background area in the preview image;

所述第二摄像头基于所述背景区域进行曝光，拍摄第二图像。The second camera performs exposure based on the background area, and takes a second image.

具体的，在本发明实施例中，第一摄像头是可以进行人脸识别的，第二摄像头是无法进行人脸识别的。因为第一摄像头通过人脸识别就可以判断出预览图像中是否包含人脸，若是，则将预览图像中包含人脸的区域作为主体区域，所以，第二摄像头与第一摄像头进行数据交互就可以得知预览图像中的主体区域以外的背景区域在哪里，也就不需要通过人脸识别来判断背景区域了。Specifically, in the embodiment of the present invention, the first camera can perform face recognition, and the second camera cannot perform face recognition. Because the first camera can judge whether the preview image contains a human face through face recognition, and if so, use the area containing the human face in the preview image as the main area, so the data interaction between the second camera and the first camera can Knowing where the background area other than the subject area in the preview image is, there is no need to judge the background area through face recognition.

其中，预览图像指的是在图像拍摄完成之前，用户在取景框里可以看到的图像。例如在智能移动终端中，用户打开相机后，在按下拍摄按钮之前，通过屏幕看到的图像。Wherein, the preview image refers to the image that the user can see in the viewfinder frame before the image shooting is completed. For example, in a smart mobile terminal, after the user turns on the camera, before pressing the shooting button, the image seen through the screen.

当第一摄像头确定了预览图像中的主体区域后，则基于主体区域进行曝光，拍摄第一图像。这样，第一图像中的人物的曝光量是正常的，因此人物的色彩也是正常的，而背景区域的曝光量则可能不够或者过量，因此背景区域的色彩可能偏白或者偏黑。After the first camera determines the subject area in the preview image, exposure is performed based on the subject area, and the first image is captured. In this way, the exposure of the person in the first image is normal, so the color of the person is also normal, but the exposure of the background area may be insufficient or excessive, so the color of the background area may be white or black.

第一摄像头确定了预览图像的主体区域后，通知第二摄像头，这样第二摄像头就能确定预览图像中的背景区域，然后基于背景区域进行曝光，拍摄第二图像。因为是基于背景区域进行曝光，所以第二图像中人物可能会是黑白的，或者近乎是黑白的，但是背景是彩色的，也就是剪影的效果。After the first camera determines the subject area of the preview image, it notifies the second camera, so that the second camera can determine the background area in the preview image, and then perform exposure based on the background area to capture the second image. Because the exposure is based on the background area, the characters in the second image may be black and white, or almost black and white, but the background is colored, which is the silhouette effect.

若所述预览图像不包括人脸，则采用所述第一摄像头和所述第二摄像头分别获取所述预览图像的景深信息；If the preview image does not include a human face, then using the first camera and the second camera to respectively acquire the depth of field information of the preview image;

将景深小的区域作为所述预览图像中的主体区域；Taking an area with a small depth of field as the main body area in the preview image;

基于所述主体区域进行曝光，拍摄第一图像；performing exposure based on the subject area, and taking a first image;

将所述景深大的区域作为所述预览图像中的背景区域；Using the region with a large depth of field as a background region in the preview image;

所述第二摄像头基于所述背景区域进行曝光，拍摄第二图像。The second camera performs exposure based on the background area, and takes a second image.

具体的，若第一摄像头没有识别到人脸，则采用第一摄像头和第二摄像头获取预览图像的景深。因为智能移动终端具有两颗摄像头，两颗摄像头位于同一平面，而且两颗摄像头之间有一定的距离，所以，两颗摄像头和拍摄的物体就形成了一个三角形，这样，就可以通过这个三角形计算出预览图像的景深，然后将景深浅的区域作为所述预览图像中的主体区域，将所述景深深的区域作为所述预览图像中的背景区域，接着第一摄像头就可以基于所述主体区域进行曝光，拍摄第一图像，第二摄像头基于所述背景区域进行曝光，拍摄第二图像。Specifically, if the first camera does not recognize a human face, the first camera and the second camera are used to acquire the depth of field of the preview image. Because the smart mobile terminal has two cameras, the two cameras are located on the same plane, and there is a certain distance between the two cameras, so the two cameras and the object to be photographed form a triangle, so that you can use this triangle to calculate The depth of field of the preview image is obtained, and then the area with a shallow depth of field is used as the main body area in the preview image, and the area with the deep field is used as the background area in the preview image, and then the first camera can be based on the main area Exposure is performed to capture a first image, and the second camera performs exposure based on the background area to capture a second image.

需要说明的是，第一摄像头通过人脸识别来确定预览图像的主体区域和背景区域，以及通过采用所述第一摄像头和所述第二摄像头获取所述预览图像的景深来确定预览图像的主体区域和背景区域都是在用户按下拍摄按钮之前就可以确定的，所以，在拍摄的时候，第一摄像头与第二摄像头是可以同时进行拍摄的。It should be noted that the first camera determines the main body area and the background area of the preview image through face recognition, and determines the main body of the preview image by using the first camera and the second camera to obtain the depth of field of the preview image. Both the area and the background area can be determined before the user presses the shooting button, so when shooting, the first camera and the second camera can simultaneously shoot.

步骤102，获取所述第一图像的主体区域图像以及所述第二图像的背景区域图像；Step 102, acquiring a subject area image of the first image and a background area image of the second image;

在本发明一种优选实施例中，获取所述第一图像的主体区域，以及，所述第二图像的背景区域的步骤包括：In a preferred embodiment of the present invention, the step of acquiring the subject area of the first image and the background area of the second image includes:

获取所述第一图像中包含主体区域的图层；Obtain a layer containing a subject area in the first image;

获取所述第二图像中包含背景区域的图层。A layer containing a background area in the second image is acquired.

具体的，确定出第一图像中的第一主体区域后，就需要将主体区域之外的图像去掉，例如，可以通过抠图的方式将主体区域从第一图像中抠出来，这样就得到了包含主体区域的图层，图层中除主体区域外的区域则是透明的；相应的，也可以使用同样的方式获取第二图像包含背景区域的图层，图层中除背景区域外的区域也是透明的。Specifically, after the first subject area in the first image is determined, the images outside the subject area need to be removed. For example, the subject area can be cut out from the first image by means of image matting, thus obtaining For the layer containing the main body area, the area in the layer except the main area is transparent; correspondingly, the same method can also be used to obtain the layer containing the background area of the second image, and the area in the layer except the background area It is also transparent.

当然，除上了述方法获取第一图像的主体区域，以及获取第二图像的背景区域外，也可以使用其它方法获取，本发明实施例对此不作限制。Of course, in addition to the above method to obtain the subject area of the first image and the background area of the second image, other methods may also be used, which are not limited in this embodiment of the present invention.

步骤103，将所述主体区域图像与所述背景区域图像结合，生成目标图像；Step 103, combining the subject area image with the background area image to generate a target image;

在本发明一种优选实施例中，所述将所述主体区域图像与所述背景区域图像结合的步骤包括：所述将所述主体区域图层与所述背景区域图层结合。In a preferred embodiment of the present invention, the step of combining the subject area image with the background area image includes: combining the subject area layer with the background area layer.

具体的，因为包含主体区域的图层中，除主体区域外的区域则是透明的，而包含背景区域的图层中，除背景区域外的区域也是透明的，因此，将二者进行叠加，就可以形成一张既有主体区域，又有背景区域的图像了。Specifically, because in the layer containing the subject area, the area except the subject area is transparent, and in the layer containing the background area, the area except the background area is also transparent, so the two are superimposed, An image with both a subject area and a background area can be formed.

步骤104，展示所述目标图像。Step 104, displaying the target image.

将生成的目标图像展示给用户。对用户而言，用户看到的就是一张生成后的图像，并不会知道两颗摄像头分别拍摄了两张图像，然后对两张图像分别进行处理得到目标图像。这样，用户拍摄得到的图像中，主体区域的曝光量是正常的，背景区域的曝光量也是正常的，即使是在主体和背景光线不均衡的情况下，拍摄的图像中主体和背景也都依然是鲜艳明亮的。Display the generated target image to the user. For the user, what the user sees is a generated image, and does not know that the two cameras have captured two images, and then processed the two images separately to obtain the target image. In this way, in the image captured by the user, the exposure of the main body area is normal, and the exposure of the background area is also normal. It is colorful and bright.

当然，在第一摄像头为彩色摄像头，第二摄像头也为彩色摄像头的情况下，才可以实现上述效果。如果当第一摄像头为彩色摄像头，第二摄像头为黑白摄像头时，那么在主体和背景光线不均衡的情况下，可以拍摄出主体色彩鲜艳明亮，背景黑白的图像，而这种效果是现有的单摄像头，以及双摄像头在拍摄时无法实现的，只能通过拍摄完成后通过算法来调整图像色彩的灰度值，而这种方法是以牺牲图像质量为代价的。Of course, the above effect can only be realized when the first camera is a color camera and the second camera is also a color camera. If the first camera is a color camera and the second camera is a black-and-white camera, then in the case of unbalanced light between the subject and the background, images with bright and bright colors of the subject and black and white background can be captured, and this effect is existing What cannot be achieved with a single camera, or with dual cameras, can only be adjusted by an algorithm to adjust the grayscale value of the image color after the shooting is completed, and this method is at the expense of image quality.

在本发明实施例中，智能移动终端具有第一摄像头，以及第二摄像头，当智能移动终端接收到拍摄指令时，控制第一摄像头拍摄第一图像，第二摄像头拍摄第二图像，然后获取第一图像的主体区域，以及，第二图像的背景区域，再将所述主体区域与所述背景区域结合，生成目标图像，最后展示所述目标图像。这样，在主体和背景光线不均衡的情况下，拍摄得到的图像中主体区域和背景区域依然都有正常的曝光量，从而解决了现有技术中在主体和背景光线不均衡的情况下，拍摄得到的图像中主体区域曝光量不够/过量，或者背景区域曝光量过量/不够的问题。In the embodiment of the present invention, the smart mobile terminal has a first camera and a second camera. When the smart mobile terminal receives a shooting instruction, it controls the first camera to take a first image, the second camera to take a second image, and then obtains the second image. The main body area of the first image, and the background area of the second image, and then combine the main body area and the background area to generate a target image, and finally display the target image. In this way, in the case of unbalanced subject and background light, both the subject area and the background area of the captured image still have normal exposure, thus solving the problem of shooting under the condition of unbalanced subject and background light in the prior art. In the resulting image, the subject area is under/overexposed, or the background area is over/underexposed.

需要说明的是，对于方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明实施例并不受所描述的动作顺序的限制，因为依据本发明实施例，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作并不一定是本发明实施例所必须的。It should be noted that, for the method embodiment, for the sake of simple description, it is expressed as a series of action combinations, but those skilled in the art should know that the embodiment of the present invention is not limited by the described action sequence, because According to the embodiment of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

参照图2，示出了本发明的一种基于双摄像头的图像拍摄移动装置实施例的结构框图，所述双摄像头包括第一摄像头，以及第二摄像头；具体可以包括如下模块：Referring to FIG. 2 , it shows a structural block diagram of an embodiment of an image capture mobile device based on dual cameras of the present invention. The dual cameras include a first camera and a second camera; specifically, the following modules may be included:

当接收到拍摄指令时，所述第一摄像头201用于拍摄第一图像，所述第二摄像头202用于拍摄第二图像；When a shooting instruction is received, the first camera 201 is used to take a first image, and the second camera 202 is used to take a second image;

获取模块203，用于获取所述第一图像的主体区域图像以及所述第二图像的背景区域图像；An acquisition module 203, configured to acquire a subject area image of the first image and a background area image of the second image;

生成模块204，用于将所述主体区域图像与所述背景区域图像结合，生成目标图像；A generating module 204, configured to combine the subject area image with the background area image to generate a target image;

展示模块205，用于展示所述目标图像。A display module 205, configured to display the target image.

在本发明一种优选实施例中，所述第一摄像头包括：In a preferred embodiment of the present invention, the first camera includes:

预览图像生成子模块，用于生成预览图像；A preview image generation submodule is used to generate a preview image;

识别子模块，用于识别预览图像是否包含人脸；A recognition sub-module is used to recognize whether the preview image contains a human face;

确定子模块，用于将包含人脸的区域作为所述预览图像中的主体区域；Determining a submodule, configured to use an area containing a human face as the subject area in the preview image;

第一拍摄子模块，用于基于所述主体区域进行曝光，拍摄第一图像；The first photographing submodule is configured to perform exposure based on the subject area, and photograph a first image;

背景区域确定子模块，用于将除所述主体区域以外的区域作为所述预览图像中的背景区域；A background area determining submodule, configured to use an area other than the subject area as the background area in the preview image;

所述第二摄像头包括：The second camera includes:

第二拍摄子模块，用于基于所述背景区域进行曝光，拍摄第二图像。The second photographing submodule is configured to perform exposure based on the background area, and photograph a second image.

在本发明一种优选实施例中，还包括：In a preferred embodiment of the present invention, it also includes:

景深信息获取模块，用于若所述预览图像不包括人脸，则采用所述第一摄像头和所述第二摄像头分别获取所述预览图像的景深信息；A depth-of-field information acquisition module, configured to use the first camera and the second camera to respectively acquire the depth-of-field information of the preview image if the preview image does not include a human face;

主体区域确定模块，用于将景深小的区域作为所述预览图像中的主体区域；A main body area determination module, configured to use an area with a small depth of field as the main body area in the preview image;

所述第一摄像头，还用于基于所述主体区域进行曝光，拍摄第一图像；The first camera is also used to perform exposure based on the subject area and take a first image;

背景区域确定模块，用于将所述景深大的区域作为所述预览图像中的背景区域；A background area determination module, configured to use the area with a large depth of field as the background area in the preview image;

所述第二摄像头，还用于所述第二摄像头基于所述背景区域进行曝光，拍摄第二图像。The second camera is also used for the second camera to perform exposure based on the background area and take a second image.

在本发明一种优选实施例中，获取模块包括：In a preferred embodiment of the present invention, the acquisition module includes:

第一图层获取子模块，用于获取所述第一图像中包含主体区域的图层；The first layer acquisition submodule is used to acquire the layer containing the subject area in the first image;

第二图层获取子模块，用于获取所述第二图像中包含背景区域的图层；The second layer acquisition submodule is used to acquire the layer containing the background area in the second image;

所述生成模块包括：The generating modules include:

图层结合子模块，用于所述将所述主体区域图层与所述背景区域图层结合。The layer combination sub-module is used for combining the layer of the subject area with the layer of the background area.

在本发明一种优选实施例中，所述第一摄像头为彩色摄像头，所述第二摄像头为黑白摄像头，In a preferred embodiment of the present invention, the first camera is a color camera, and the second camera is a black and white camera,

或，or,

所述第一摄像头为彩色摄像头，所述第二摄像头为彩色摄像头。The first camera is a color camera, and the second camera is a color camera.

对于装置实施例而言，由于其与方法实施例基本相似，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

本领域内的技术人员应明白，本发明实施例的实施例可提供为方法、装置、或计算机程序产品。因此，本发明实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, devices, or computer program products. Accordingly, embodiments of the invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

本发明实施例是参照根据本发明实施例的方法、终端设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理终端设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理终端设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。Embodiments of the present invention are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor or processor of other programmable data processing terminal equipment to produce a machine such that instructions executed by the computer or processor of other programmable data processing terminal equipment Produce means for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理终端设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the The instruction means implements the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

这些计算机程序指令也可装载到计算机或其他可编程数据处理终端设备上，使得在计算机或其他可编程终端设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程终端设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded into a computer or other programmable data processing terminal equipment, so that a series of operational steps are performed on the computer or other programmable terminal equipment to produce computer-implemented processing, thereby The instructions executed above provide steps for implementing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

尽管已描述了本发明实施例的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明实施例范围的所有变更和修改。Having described preferred embodiments of embodiments of the present invention, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the embodiments of the present invention.

最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者终端设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者终端设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的相同要素。Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

以上对本发明所提供的一种基于双摄像头的图像拍摄方法和一种基于双摄像头的图像拍摄移动装置，进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。The above is a detailed introduction of a dual-camera-based image capture method and a dual-camera image capture mobile device provided by the present invention. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; meanwhile, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.

1. A kind of 1. image capturing method based on dual camera, applied to mobile device, which is characterized in that the dual camera packet Include the first camera and second camera；The method includes：

   When receiving shooting instruction, first camera shoots the first image, and the second camera shoots the second image；

   Obtain the body region image of described first image and the background area image of second image；

   The body region image with the background area image is combined, generates target image；

   Show the target image.

2. 2. according to the method described in claim 1, it is characterized in that, first camera shoot the first image, described second The step of camera the second image of shooting, includes：

   First camera generates a preview image；

   Identify the preview image whether comprising face；

   If so, using the region comprising face as the body region in the preview image；

   It is exposed based on the body region, shoots the first image；

   Using the region in addition to the body region as the background area in the preview image；

   The second camera is exposed based on the background area, shoots the second image.

3. 3. it according to the method described in claim 2, it is characterized in that, further includes：

   If the preview image does not include face, obtained respectively using first camera and the second camera described The depth of view information of preview image；

   Using the small region of the depth of field as the body region in the preview image；

   It is exposed based on the body region, shoots the first image；

   Using the big region of the depth of field as the background area in the preview image；

   The second camera is exposed based on the background area, shoots the second image.

4. 4. according to the method described in claim 1, it is characterized in that, obtain body region image and the institute of described first image The step of background area image for stating the second image, includes：

   Obtain the figure layer for including body region in described first image；

   Obtain the figure layer for including background area in second image；

   Described the step of being combined the body region image with the background area image, includes：It is described by the body region Figure layer is combined with the background area figure layer.

5. 5. according to the method described in claim 1, it is characterized in that, first camera be colour imagery shot, described second Camera is black and white camera,

   Or,

   First camera is colour imagery shot, and the second camera is colour imagery shot.

6. 6. a kind of image taking mobile device based on dual camera, which is characterized in that the dual camera includes the first camera shooting Head and second camera；The mobile device includes：

   When receiving shooting instruction, for shooting the first image, the second camera is used to shoot first camera Second image；

   Acquisition module, for obtaining the Background regional image of the body region image of described first image and second image Picture；

   Generation module for the body region image to be combined with the background area image, generates target image；

   Display module, for showing the target image.

7. 7. mobile device according to claim 6, which is characterized in that first camera includes：

   Preview image generates submodule, for generating a preview image；

   Submodule is identified, for identifying preview image whether comprising face；

   Determination sub-module, for the region of face will to be included as the body region in the preview image；

   First shooting submodule is exposed for being based on the body region, shoots the first image；

   Background area determination sub-module, for will be except the region in addition to the body region is as the background in the preview image Region；

   The second camera includes：

   Second shooting submodule is exposed for being based on the background area, shoots the second image.

8. 8. mobile device according to claim 7, which is characterized in that further include：

   Depth of view information acquisition module, if not including face for the preview image, using first camera and described Second camera obtains the depth of view information of the preview image respectively；

   Body region determining module, for using the small region of the depth of field as the body region in the preview image；

   First camera is additionally operable to be exposed based on the body region, shoots the first image；

   Background area determining module, for using the big region of the depth of field as the background area in the preview image；

   The second camera is additionally operable to the second camera and is exposed based on the background area, shoots the second image.

9. 9. mobile device according to claim 6, which is characterized in that acquisition module includes：

   First figure layer acquisition submodule, for obtaining the figure layer that body region is included in described first image；

   Second figure layer acquisition submodule, for obtaining the figure layer for including background area in second image；

   The generation module includes：

   Figure layer combination submodule is combined the body region figure layer with the background area figure layer for described.

10. 10. mobile device according to claim 6, which is characterized in that first camera is colour imagery shot, described Second camera is black and white camera,

    Or,

    First camera is colour imagery shot, and the second camera is colour imagery shot.