CN107343144A - Dual camera switching processing method, device and equipment thereof - Google Patents

Abstract

The invention discloses a method, a device and equipment for switching and processing double cameras, wherein the method comprises the following steps: receiving a camera switching instruction, performing Gaussian blur processing on the preview image, and covering brightness jump and color jump of the preview image in the switching process; and receiving a camera switching completion instruction, and stopping image processing and displaying the switched preview image. Therefore, when the camera is switched, the brightness jump and the color jump of the preview image in the switching process are covered through Gaussian blur processing, the visual perception of a user is improved, and the experience is improved.

Description

Dual camera switching processing method, device and equipment thereof

technical field

The present invention relates to the technical field of photographing, in particular to a dual camera switching processing method, device and equipment thereof.

Background technique

At present, in order to meet the shooting needs of users, the terminal device is equipped with dual cameras. Usually, when dual cameras are forced to switch cameras instantly, such as when switching from camera A to camera B instantaneously, due to the differences between the two cameras themselves, in the same environment, AWB (Automatic White Balance, automatic white balance) and AEC ( Automatic Exposure Control, automatic exposure control) is difficult to keep consistent, resulting in a jump in brightness and color at the moment of forced switching.

Contents of the invention

Embodiments of the present invention provide a dual-camera switching processing method, device and equipment thereof to solve the problem of brightness and Problems such as color jumps.

An embodiment of the present invention provides a dual-camera switching processing method, comprising the following steps: receiving a camera switching instruction, performing Gaussian blur processing on the preview image, covering the brightness jump and color jump of the preview image during the switching process; receiving the camera switching completion instruction , stop image processing and display the preview image after switching.

Another embodiment of the present invention provides a dual-camera switching processing device, including a receiving module for receiving a camera switching instruction; a processing module for performing Gaussian blur processing on the preview image, covering the brightness jump and the brightness of the preview image during the switching process The color jumps; the stop display module is used to receive a camera switching completion instruction, stop image processing and display a preview image after switching.

Yet another embodiment of the present invention provides a terminal device, including: including one or more of the following components: a housing, a processor located in the housing, and a memory, wherein the processor reads the The executable program code is used to run the program corresponding to the executable program code, so as to execute the dual camera switching processing method as described in the first aspect.

Still another embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, and it is characterized in that, when the computer program is executed by a processor, the dual-camera switching process as described in the first aspect is implemented. method.

The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

When the camera is switched, Gaussian blur processing is used to cover the brightness jump and color jump of the preview image during the switching process, so as to improve the user's visual experience, thereby improving the experience.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

FIG. 1 is a schematic flow diagram of a dual camera switching processing method according to an embodiment of the present invention;

FIG. 2 is a schematic flowchart of a method for switching between dual cameras according to another embodiment of the present invention;

3 is a schematic structural diagram of a dual-camera switching processing device according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a processing module according to an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

The following describes the dual camera switching processing method, device and equipment according to the embodiments of the present invention with reference to the accompanying drawings.

At present, due to the differences between the two cameras of the dual camera, in the same environment, when the camera is forced to switch, it is difficult to keep the automatic white balance and automatic exposure control consistent, which will cause the brightness and color of the image to jump at the moment of forced switching .

In order to solve the above-mentioned technical problems, the present invention proposes a dual-camera switching processing method, which improves the user's visual experience by covering the brightness jump and color jump of the preview image during the switching process through Gaussian blur processing when switching cameras, thereby Enhance the experience. details as follows:

FIG. 1 is a schematic flowchart of a method for processing dual camera switching according to an embodiment of the present invention.

As shown in Figure 1, the dual camera switching processing method includes:

Step 101, receiving a camera switching instruction, performing Gaussian blur processing on the preview image, covering the brightness jump and color jump of the preview image during the switching process.

Step 102, receiving a camera switching completion instruction, stopping image processing and displaying a preview image after switching.

Specifically, in practical applications, the device is equipped with dual cameras, and the camera switching command can be triggered in many ways. As an example, the camera switching command is automatically triggered when the focal length is set to the preset focal length; as another example, the user manually presses the Relevant keys and other methods automatically trigger camera switching instructions and so on. It can be selected and set according to actual application needs.

Further, upon receiving the camera switching instruction, Gaussian blur processing is performed on the preview image to cover the brightness jump and color jump of the preview image during the switching process. It can be understood that the preview image may be generated according to at least one of the preview image data acquired by the two cameras, wherein the preview image data may be the data of the subject being imaged by the camera.

As a possible implementation form, the current preview image data is respectively obtained according to the dual cameras, the first depth of field information of the foreground area and the second depth of field information of the background area in the current preview image are determined, and the virtual image is obtained according to the first depth of field information and the second depth of field information. According to the basic value of blur degree, the preview image will be Gaussian blurred.

Further, after receiving the camera switching completion instruction, no Gaussian blur processing is performed, and the switched preview image is displayed.

To sum up, the dual-camera switching processing method of the embodiment of the present invention improves the user's visual experience by covering the brightness jump and color jump of the preview image during the switching process through Gaussian blur processing when switching cameras, thereby improving the user experience. .

Based on the above embodiments, it can be understood that Gaussian blur processing is performed when the dual camera is switched, and the brightness jump and color jump of the preview image during the switching process can be covered. In order to make it clearer for those skilled in the art how to perform Gaussian blur processing on the preview image, cover switching The brightness jump and color jump of the preview image during the process are described in detail in conjunction with Figure 2 below:

Fig. 2 is a schematic flowchart of a method for processing switching between dual cameras according to another embodiment of the present invention.

As shown in Figure 2, the dual camera switching processing method includes:

Step 201: Acquiring the current preview image data respectively according to the dual cameras, and determining the first field depth information of the foreground area and the second field depth information of the background area in the current preview image.

Specifically, the dual-camera device has two cameras, and the preview image data may be the data of the subject being imaged by the cameras. The current preview image is generated according to at least one of the preview image data acquired by the two cameras. Depth of field information refers to the distance from the closest point to the farthest point that makes the subject produce a clearer image, that is, the spatial depth at which the subject can be clearly imaged. The depth of field information corresponding to each image point in the preview image can be obtained by querying the phase difference of the image point in the preview image data acquired by the two cameras.

Specifically, since the positions of the two cameras are not the same, there is a certain angle difference and distance difference between the two cameras relative to the shooting object, and therefore there is also a certain phase difference in the corresponding preview image data.

For example, for point A on the shooting target, in the preview image data of camera 1, the pixel coordinates corresponding to point A are (35, 60), and in the preview image data of camera 2, the pixel corresponding to point A is The coordinates of the point are (35, 55), and the phase difference between the pixels corresponding to the point A in the two preview image data is 60-55=5.

It can be understood that the relationship between the depth of field information and the phase difference can be established in advance according to the experimental data or camera parameters, and then the corresponding depth of field information can be found according to the phase difference of each image point in the preview image in the preview image data acquired by the two cameras . For example, for the above-mentioned phase difference corresponding to point A of 5, if the corresponding depth of field is found to be 3 meters according to the preset correspondence, then the depth of field information corresponding to point A in the preview image is 3 meters. Thus, the depth information of each pixel in the current preview image can be obtained.

Further, after obtaining the depth of field information of each image point in the current preview image, the first depth of field information of the foreground area in the current preview image can be further determined, and the depth of field information of the area other than the first depth of field information of the foreground area is the background area The second depth of field information.

Step 202: Acquire a basic value of the degree of blurring according to the first depth of field information and the second depth of field information.

It can be understood that the basic value of the degree of blurring is a benchmark value of the degree of blurring, and the blurring coefficient can be obtained by performing calculations on the basis of the basic value of the degree of blurring, and the background area can be blurred according to the blurring coefficient .

Specifically, many ways can be used to obtain the basic value of the blur degree according to the first depth of field information and the second depth of field information. For example, the representative value of the first depth of field information and the representative value of the second depth of field information can be determined respectively, and then according to The representative value of the depth of field information and the representative value of the second depth of field information are calculated to obtain the basic value of the blurring degree. Wherein, the representative value may include but not limited to the average value, sampling value and the like. The calculation method used to obtain the basic value of the degree of blurring may include but not limited to calculating a ratio, a difference, or further multiplying or adding a preset value based on the ratio or difference.

As an example, a first average value of the first depth of field information and a second average value of the second depth of field information are obtained, and a ratio of the first average value to the second average value is calculated to obtain a basic value of the blurring degree.

Step 203, performing Gaussian blur processing on the preview image according to the basic value of the degree of blurring.

Specifically, Gaussian blur processing can be performed on the preview image according to the basic value of the degree of blur in many ways. As an example, according to the basic value of the degree of blur and the first depth information of the foreground area, each The blur coefficient of the pixel. According to the blur coefficient of each pixel in the foreground area, Gaussian blur processing is performed on the foreground area. Gaussian blur processing is performed on the background area according to the blur coefficient of each pixel in the background area.

Wherein, the blurring coefficient represents the blurring degree of the background area, and the larger the blurring coefficient is, the higher the blurring degree of the background area is.

Specifically, many ways can be used to determine the blur coefficient of each pixel in the foreground area according to the basic value of the blur level and the first depth information of the foreground area. As an example, the basic value of the blur level and the foreground The product of the first field depth information of each pixel in the area obtains the blur coefficient of each pixel in the foreground area.

Specifically, many ways can be used to determine the blur coefficient of each pixel in the background area according to the basic value of the blur level and the second depth information of the background area. As an example, the calculation of the basic value of the blur level and the background The product of the second field depth information of each pixel in the area obtains the blur coefficient of each pixel in the background area.

In summary, the dual-camera switching processing method in the embodiment of the present invention determines the first depth of field information of the foreground area and the second depth of field information of the background area in the current preview image by respectively obtaining the current preview image data according to the dual cameras, and then according to The first depth of field information and the second depth of field information obtain the basic value of the degree of blur, and finally perform Gaussian blur processing on the preview image according to the basic value of the degree of blur, so as to cover the brightness jump and color jump of the preview image during the switching process and improve The user's visual perception, thereby enhancing the experience.

In order to achieve the above object, the present invention also proposes a dual-camera switching processing device.

Fig. 3 is a schematic structural diagram of a dual camera switching processing device according to an embodiment of the present invention. As shown in Figure 3, the dual-camera switching processing device includes: a receiving module 11, a processing module 12 and a stop display module 13

Wherein, the receiving module 11 is configured to receive a camera switching instruction.

The processing module 12 is configured to perform Gaussian blur processing on the preview image, covering the brightness jump and color jump of the preview image during the switching process.

The stop display module 13 is configured to receive a camera switching completion instruction, stop image processing and display the switched preview image.

Further, in a possible implementation form of the present invention, as shown in FIG. 4 , the processing module 12 includes: a determination unit 121 , an acquisition unit 122 and a processing unit 123 .

Wherein, the determining unit 121 is configured to determine the first field depth information of the foreground area and the second field depth information of the background area in the current preview image according to the current preview image data respectively obtained by the dual cameras.

The obtaining unit 122 is configured to obtain a basic value of the degree of blurring according to the first depth of field information and the second depth of field information.

The processing unit 123 is configured to perform Gaussian blur processing on the preview image according to the basic value of the blur degree.

Further, the acquisition unit 122 is specifically configured to acquire the first average value of the first depth of field information and the second average value of the second depth of field information, and calculate the ratio of the first average value to the second average value to obtain the basic value of the degree of blur .

Further, the processing unit 123 is specifically configured to determine the blur coefficient of each pixel in the foreground area according to the basic value of the blur degree and the first field depth information of the foreground area, and to determine the blur coefficient of each pixel in the foreground area according to the Gaussian blur processing is performed on the foreground area, and the blur coefficient of each pixel in the background area is determined according to the basic value of the blur degree and the second depth of field information in the background area, and the background area is blurred according to the blur coefficient of each pixel in the background area. Gaussian blurring.

Among them, according to the basic value of the degree of blur and the first depth of field information of the foreground area, determine the blur coefficient of each pixel in the foreground area, including: calculating the basic value of the degree of blur and the first depth of field of each pixel in the foreground area The product of information to obtain the blur coefficient of each pixel in the foreground area.

Wherein, according to the basic value of the degree of blur and the second depth of field information of the background area, the blur coefficient of each pixel in the background area is determined, including: calculating the basic value of the degree of blur and the second depth of field of each pixel in the background area The product of the information to get the blur coefficient for each pixel in the background area.

It should be noted that the aforementioned explanations on the dual-camera switching processing method are also applicable to the dual-camera switching processing device in the embodiment of the present invention, and the implementation principles thereof are similar, so details are not repeated here.

To sum up, the dual-camera switching processing method of the embodiment of the present invention improves the user's visual experience by covering the brightness jump and color jump of the preview image during the switching process through Gaussian blur processing when switching cameras, thereby improving the user experience. .

In order to implement the above embodiments, the present invention also proposes a terminal device, and FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. As shown in FIG. 5 , the terminal device 1000 includes: a housing 1100 , a processor 1110 and a memory 1120 located in the housing 1100 , wherein the processor 1110 runs and can read the executable program code stored in the memory 1120 Executing the program corresponding to the program code is used to execute the dual camera switching processing method described in the above embodiment.

In order to realize the above-mentioned embodiments, the present invention also proposes a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the dual-camera switching process as described in the above-mentioned embodiments can be realized method.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing custom logical functions or steps of a process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium, For use with instruction execution systems, devices, or devices (such as computer-based systems, systems including processors, or other systems that can fetch instructions from instruction execution systems, devices, or devices and execute instructions), or in conjunction with these instruction execution systems, devices or equipment used. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk case (magnetic device), random access memory (RAM), Read Only Memory (ROM), Erasable and Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. The program is processed electronically and stored in computer memory.

It should be understood that various parts of the present invention can be realized by hardware, software, firmware or their combination. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented by any one or a combination of the following techniques known in the art: a discrete Logic circuits, ASICs with suitable combinational logic gates, Programmable Gate Arrays (PGA), Field Programmable Gate Arrays (FPGA), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. A dual-camera switching processing method, characterized in that, comprising: Receive the camera switching command, perform Gaussian blur processing on the preview image, and cover the brightness jump and color jump of the preview image during the switching process; Receive a camera switching completion instruction, stop image processing and display a preview image after switching. 2. The method according to claim 1, wherein said performing Gaussian blur processing on the preview image to cover the brightness jump and color jump of the preview image during the switching process, comprising: Obtain the current preview image data respectively according to the dual cameras, and determine the first depth of field information of the foreground area and the second depth of field information of the background area in the current preview image; Acquiring a basic value of a blurring degree according to the first depth of field information and the second depth of field information; Perform Gaussian blur processing on the preview image according to the basic value of the blurring degree. 3. The method according to claim 2, wherein said obtaining the basic value of the degree of blurring according to the first depth of field information and the second depth of field information comprises: Acquiring a first average value of the first depth of field information and a second average value of the second depth of field information; calculating a ratio of the first average value to the second average value to obtain a basic value of the degree of blurring. 4. The method according to claim 2, wherein said performing Gaussian blur processing on the preview image according to the basic value of the degree of blurring comprises: Determining a blur coefficient for each pixel in the foreground area according to the basic value of the blur level and the first field depth information of the foreground area; performing Gaussian blur processing on the foreground area according to the blur coefficient of each pixel in the foreground area; determining a blur coefficient for each pixel in the background area according to the basic value of the blur level and the second depth of field information in the background area; Gaussian blur processing is performed on the background area according to the blur coefficient of each pixel in the background area. 5. The method according to claim 4, wherein, according to the basic value of the degree of blur and the first depth of field information of the foreground area, determining the blur coefficient of each pixel in the foreground area includes : calculating the product of the basic value of the degree of blurring and the first field depth information of each pixel in the foreground area, and obtaining the blurring coefficient of each pixel in the foreground area; The determining the blur coefficient of each pixel in the background area according to the basic value of the blur degree and the second depth of field information of the background area includes: Calculate the product of the basic value of the blurring degree and the second field depth information of each pixel in the background area to obtain a blurring coefficient of each pixel in the background area. 6. A dual-camera switching processing device, characterized in that, comprising: A receiving module, configured to receive a camera switching instruction; The processing module is used to perform Gaussian blur processing on the preview image, covering the brightness jump and color jump of the preview image during the switching process; The stop display module is used to receive a camera switching completion instruction, stop image processing and display a preview image after switching. 7. The device according to claim 6, wherein the processing module comprises: A determining unit, configured to obtain the current preview image data respectively according to the dual cameras, and determine the first depth of field information of the foreground area and the second depth of field information of the background area in the current preview image; An acquisition unit, configured to acquire a basic value of the degree of blurring according to the first depth of field information and the second depth of field information; A processing unit, configured to perform Gaussian blur processing on the preview image according to the basic value of the blur degree. 8. The device according to claim 7, wherein the acquiring unit is specifically configured to: Acquiring a first average value of the first depth of field information and a second average value of the second depth of field information; calculating a ratio of the first average value to the second average value to obtain a basic value of the degree of blurring. 9. A terminal device, characterized in that it includes one or more of the following components: a housing, a processor located in the housing, and a memory, wherein the processor reads the executable stored in the memory The program code is used to run a program corresponding to the executable program code, so as to execute the dual camera switching processing method according to any one of claims 1-5. 10. A non-transitory computer-readable storage medium, on which a computer program is stored, characterized in that, when the computer program is executed by a processor, it realizes the dual-camera switching process according to any one of claims 1-5 method.