CN108650462B - Shooting preview display method, device, terminal and storage medium - Google Patents

Abstract

The embodiment of the application discloses a shooting preview display method, a shooting preview display device, a terminal and a storage medium, wherein the shooting preview display method comprises the following steps: when the device is in a shooting state, determining whether a flash lamp needs to be started; if the flash lamp is determined to be required to be started, acquiring working parameters of the flash lamp; compensating the preview picture acquired by the camera according to the working parameters of the flash lamp to obtain a compensated preview picture; and displaying the compensated preview picture. According to the shooting preview display method, the shooting preview display device, the terminal and the storage medium, a user can know the effect of starting a flash lamp to shoot a photo before shooting, and the use experience of the user is improved.

Description

Shooting preview display method, device, terminal and storage medium

technical field

The embodiments of the present application relate to digital imaging technologies, and in particular, to a method, device, terminal, and storage medium for displaying a shooting preview.

Background technique

In order to improve the user experience, various terminal devices with a shooting function provide a shooting preview function. The user can preview the image captured by the camera on the terminal device, so as to determine the shooting effect before the official shooting, and can observe the changed shooting effect in the preview screen in real time after changing the shooting parameters of the camera, so that the user can shoot more for satisfactory photos or videos.

However, in the current terminal device, if the flash is turned on during shooting, the user can only know the effect of the shot after the shooting is completed, which affects the user's shooting experience.

SUMMARY OF THE INVENTION

The present application provides a shooting preview display method, device, terminal and storage medium, which are used to enable a user to know the effect of a photo shot with a flash turned on before shooting.

In a first aspect, an embodiment of the present application provides a method for displaying a shooting preview, including:

When shooting, determine whether to turn on the flash;

If it is determined that the flash needs to be turned on, obtain the working parameters of the flash;

Compensate the preview image collected by the camera according to the working parameters of the flash to obtain the compensated preview image;

The preview screen after compensation is displayed.

In a possible implementation manner of the first aspect, when in a shooting state, determining whether to turn on the flash includes:

When shooting, determine whether the flash needs to be turned on according to the brightness of the ambient light;

If it is determined that the flash needs to be turned on, obtain the working parameters of the flash, including:

If the brightness of the ambient light is lower than the preset brightness threshold, it is determined that the flash needs to be turned on, and the working parameters of the flash are obtained according to the corresponding relationship between the brightness of the ambient light and the working parameters of the flash.

In a possible implementation manner of the first aspect, when in a shooting state, determining whether to turn on the flash includes:

When in the shooting state, determine whether the manual flash switch is turned on;

If it is determined that the flash needs to be turned on, obtain the working parameters of the flash, including:

If the manual flash switch is turned on, it is determined that the flash needs to be turned on, and the working parameters of the flash are obtained according to the corresponding relationship between the brightness of the ambient light and the working parameters of the flash.

In a possible implementation manner of the first aspect, the preview image collected by the camera is compensated according to the working parameters of the flash, and the compensated preview image is obtained, including:

After adjusting the shooting parameters according to the working parameters of the flash, the preview image is collected and compensated to obtain the compensated preview image.

In a possible implementation manner of the first aspect, the working parameters of the flash include working time and brightness of the flash.

In a second aspect, an embodiment of the present application provides a shooting preview display device, including:

The flash opening determination module is used to determine whether the flash needs to be turned on when it is in the shooting state;

The flash parameter acquisition module is used to obtain the working parameters of the flash if it is determined that the flash needs to be turned on;

The preview image compensation module is used to compensate the preview image collected by the camera according to the working parameters of the flash to obtain the compensated preview image;

The preview screen display module is used to display the preview screen after compensation.

In a possible implementation manner of the second aspect, the flash activation determination module is specifically configured to determine whether the flash needs to be turned on according to the brightness of the ambient light when it is in a shooting state;

The flash parameter acquisition module is specifically used to determine that the flash needs to be turned on if the brightness of the ambient light is lower than the preset brightness threshold, and obtain the working parameters of the flash according to the corresponding relationship between the brightness of the ambient light and the working parameters of the flash.

In a possible implementation manner of the second aspect, the flash activation determination module is specifically configured to determine whether the manual flash switch is turned on when it is in a shooting state;

The flash parameter acquisition module is specifically used to determine that the flash needs to be turned on if the manual flash switch is turned on, and obtain the working parameters of the flash according to the corresponding relationship between the brightness of the ambient light and the working parameters of the flash.

In a third aspect, an embodiment of the present application provides a terminal, including:

A memory, a processor, and a computer program stored in the memory and running on the processor, when the processor executes the program, to implement the method for displaying a shooting preview in any possible implementation manner of the first aspect.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, realizes the shooting preview display as in any possible implementation manner of the first aspect method.

In the shooting preview display method, device, terminal and storage medium provided by the embodiments of the present application, when in the shooting state, it is determined whether the flash needs to be turned on, and if it is determined that the flash needs to be turned on, the working parameters of the flash are obtained, and the camera The collected preview image is compensated, the compensated preview image is obtained, and the compensated preview image is displayed, so that the user can know the effect of the photo taken with the flash before shooting, so as to avoid the user being dissatisfied with the photo after the flash is turned on. The shooting situation improves the user experience.

Description of drawings

FIG. 1 is a flowchart of Embodiment 1 of a shooting preview display method provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of Embodiment 1 of a shooting preview display device provided by an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed ways

The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all the structures related to the present application.

With the development of hardware integration technology and optical technology, the volume of the camera module has been developed to a very small size. At present, various smart terminals are equipped with at least one camera module to provide users with the function of taking pictures or video. Various terminal devices with shooting functions, such as digital cameras, digital video cameras, smart phones, tablet computers, etc., all have shooting preview functions. When using the terminal device to take pictures or videos, the user can observe the picture obtained by the camera in real time on the display screen of the terminal device, which provides great convenience for the user's shooting, and enables the user to shoot better and more satisfied. photos or videos.

In order to improve the effect of taking pictures when the light is low, a flash is often used when taking pictures on a terminal device. The flash is a light source that can emit bright light in a short period of time, and is generally configured near the camera module of the terminal device. Turning on the flash to take a photo when the light is dim can improve the brightness of the subject in the photo and improve the shooting effect of the photo. However, since the flash only fires when the user presses or touches the camera button, the photo effect after adding the flash can only be known after the shooting is completed. If the shooting effect is not good, it needs to be taken again.

FIG. 1 is a flowchart of Embodiment 1 of a shooting preview display method provided by an embodiment of the present application. As shown in FIG. 1 , the method provided by this embodiment includes:

Step 101, when in the shooting state, determine whether the flash needs to be turned on.

The shooting preview display method provided by the embodiments of the present application is applicable to any terminal device including a camera or a camera module, capable of shooting photos or videos, and having a display screen, which can display a shooting preview on the display screen. Such as digital cameras, digital video cameras, smart phones, tablet computers, etc. In addition, the terminal device is equipped with a flash, which can be manually turned on by the user or automatically turned on by detecting ambient light, and completes shooting with the camera module.

When a user needs to use a terminal device to take a picture, first, the terminal device needs to be in a shooting state, that is, enter a shooting mode. After entering the shooting mode, the user can manually turn on the flash to force the flash to work, that is, the manual flash mode; or can also set the automatic flash mode, by collecting the ambient light brightness, when the ambient light brightness is lower than the preset brightness threshold, the terminal device That is, confirm to turn on the flash.

Step 102: If it is determined that the flash needs to be turned on, the working parameters of the flash are acquired.

The flash is actually a light source that can be lit for a short time. In order to make the flash work, after it is determined that the flash needs to be turned on, it is necessary to determine the working parameters of the flash. The working parameters of the flash include but are not limited to the working time and brightness of the flash, wherein the brightness of the flash can be adjusted by the working power of the flash. Flashes with different working parameters have different effects on the photos taken by the camera module.

If it is determined that the manual flash switch is turned on in the manual flash mode, the terminal device determines that the flash needs to be turned on, and then obtains the working parameters of the flash; if in the automatic flash mode, according to when the ambient light brightness is lower than the preset brightness threshold It is determined that the flash needs to be turned on, and then the working parameters of the flash are obtained.

Step 103: Compensate the preview image collected by the camera according to the working parameters of the flash to obtain the compensated preview image.

After the terminal device enters the photographing state, if the terminal device has a photographing preview function, the image captured by the camera, that is, the preview image, can be displayed in real time on the display screen of the terminal device. The user can determine whether the shooting requirements are met by viewing the preview image. In the prior art, the content displayed on the preview image is the image obtained by the camera in real time, and is only determined according to the physical parameters of the camera. In the embodiment of the present application, if it is determined that the flash needs to be turned on after the terminal device enters the shooting state, the image obtained by the camera is not displayed in the preview screen first, but the working parameters of the flash are used after the working parameters of the flash are determined. Compensate the preview image collected by the camera to obtain the compensated preview image.

The function of the flash is to improve the brightness of the ambient light during shooting. Therefore, using the working parameters of the flash to compensate the preview image captured by the camera is to compensate the brightness of the preview image, that is, to increase the brightness in the preview image. The compensation amount for compensating the preview screen is determined according to the working parameters of the flash. The compensation amount corresponding to different working parameters can be preset, or the compensation amount can be calculated in real time according to the working parameters of the flash. After adjusting the preview image according to the compensation amount, the obtained preview image after compensation is consistent with the photo effect after the photo is taken with the flash turned on.

Further, when the terminal device is shooting, if the flash is turned on, the shooting parameters of the camera will also be adjusted accordingly due to changes in brightness. During the shooting preview, although the actual shooting has not been carried out, in order to keep the preview image consistent with the actual shooting photo, after the working parameters of the flash are determined, the camera can be controlled to perform slave adjustment according to the working parameters of the flash. The specific method of adjusting the camera is the same as the adjustment method during actual shooting, the only difference is that during actual shooting, the camera adjusts the shooting parameters according to the current brightness after the camera actually detects the flash. However, in the embodiment of the present application, the acquired working parameters of the flash are directly sent to the camera, and the camera compensates and adjusts the original shooting parameters according to the working parameters of the flash. After adjusting the shooting parameters of the camera, the preview image collected by the camera is more in line with the actual shooting state. Therefore, after the preview image is compensated according to the working parameters of the flash, the compensated preview image is closer to the actual shooting. photo.

Step 104, displaying the preview screen after compensation.

After the preview picture is compensated, the compensated preview picture can be displayed on the display screen of the terminal device. Since the compensated preview picture is compensated according to the working parameters of the flash, the compensated preview picture is the same as the actual flash shooting. After the photos are the same, the user can know in the preview screen whether the photos taken after turning on the flash are satisfactory or not, and then take the actual photos after they are satisfied, so as to avoid unnecessary shooting by the user.

In the shooting preview display method provided by the embodiment of the present application, when in the shooting state, it is determined whether the flash needs to be turned on, and if it is determined that the flash needs to be turned on, the working parameters of the flash are obtained, and the preview image collected by the camera is compensated according to the working parameters of the flash, The preview screen after compensation is obtained, and the preview screen after compensation is displayed, so that the user can know the effect of the photo taken with the flash turned on before shooting, which avoids the situation that the user is dissatisfied with the photo after turning on the flash to take a photo and then retakes the photo, which improves the user experience. user experience.

FIG. 2 is a schematic structural diagram of Embodiment 1 of a shooting preview display device provided by an embodiment of the present application. As shown in FIG. 2 , the shooting preview display device provided by this embodiment includes:

The flash activation determination module 21 is used for determining whether to activate the flash when in the shooting state.

The flash parameter obtaining module 22 is configured to obtain the working parameters of the flash if it is determined that the flash needs to be turned on.

The preview image compensation module 23 is used for compensating the preview image collected by the camera according to the working parameters of the flash to obtain the compensated preview image.

The preview image display module 24 is used for displaying the compensated preview image.

The shooting preview display device provided by the embodiment of the present application can execute the shooting preview display method provided by the embodiment shown in FIG. 1 , and has functional modules and beneficial effects corresponding to the execution method.

Further, on the basis of the embodiment shown in FIG. 2 , the flash light activation determination module 21 is specifically used to determine whether the flash light needs to be turned on according to the brightness of the ambient light when it is in a shooting state; the flash light parameter acquisition module 22 is specifically used if the environment When the brightness of the light is lower than the preset brightness threshold, it is determined that the flash needs to be turned on, and the working parameters of the flash are obtained according to the corresponding relationship between the brightness of the ambient light and the working parameters of the flash.

Further, on the basis of the embodiment shown in FIG. 2 , the flash activation determination module 21 is specifically used to determine whether the manual flash switch is turned on when in the shooting state; the flash parameter acquisition module 22 is specifically used if the manual flash switch is turned on. If it is turned on, it is determined that the flash needs to be turned on, and the working parameters of the flash are obtained according to the corresponding relationship between the brightness of the ambient light and the working parameters of the flash.

Further, on the basis of the embodiment shown in FIG. 2 , the preview image compensation module 23 is specifically used to control the camera to adjust the shooting parameters according to the working parameters of the flash, and then collect the preview image and compensate the preview image to obtain the compensated preview. screen.

Further, on the basis of the embodiment shown in FIG. 2 , the working parameters of the flashlight include the working time and brightness of the flashlight.

FIG. 3 is a schematic structural diagram of a terminal provided by an embodiment of the present application. As shown in FIG. 3 , the terminal includes a processor 31, a memory 32, a camera assembly 33, and a display screen 34; the number of processors 31 in the terminal may be one or more, a processor 31 is taken as an example in FIG. 3; the processor 31, the memory 32, the camera assembly 33 and the display screen 34 in the terminal; can be connected by a bus or other means, and the connection by a bus is taken as an example in FIG. 3 .

As a computer-readable storage medium, the memory 32 can be used to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to the shooting preview display method in the embodiment of FIG. 1 of the present application (for example, a shooting preview display device). The flash light on determination module 21, the flash parameter acquisition module 22, the preview screen compensation module 23, and the preview screen display module 24). The processor 31 executes the software programs, instructions, and modules stored in the memory 32 to implement various functional applications and data processing of the terminal, that is, to implement the above-mentioned shooting preview display method.

The memory 32 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Additionally, memory 32 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

The number of camera components 33 can be one or more, and can be any form of camera or camera module, which can capture images under the control of the processor 31 and display the preview image on the display screen. The display screen 34 may be a display device or display module in any form, and can display a preview image captured by a camera built in the terminal device or outside.

Embodiments of the present application further provide a storage medium containing computer-executable instructions, when the computer-executable instructions are executed by a computer processor for executing a shooting preview display method, the method includes:

When shooting, determine whether to turn on the flash;

If it is determined that the flash needs to be turned on, obtain the working parameters of the flash;

Compensate the preview image collected by the camera according to the working parameters of the flash to obtain the compensated preview image;

The preview screen after compensation is displayed.

Of course, a storage medium containing computer-executable instructions provided by the embodiments of the present application, the computer-executable instructions of the storage medium are not limited to the above-mentioned method operations, and can also execute any of the shooting preview display methods provided in any of the embodiments of the present application. related operations.

From the above description of the embodiments, those skilled in the art can clearly understand that the present application can be implemented by means of software and necessary general-purpose hardware, and of course can also be implemented by hardware, but in many cases the former is a better implementation manner . Based on this understanding, the technical solutions of the present application can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products can be stored in a computer-readable storage medium, such as a floppy disk of a computer , read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), flash memory (FLASH), hard disk or CD, etc., including several instructions to make a computer device (which can be a personal computer, A server, or a network device, etc.) executes the methods described in the various embodiments of the present application.

It is worth noting that, in the above embodiments of the search device, the units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, each function The specific names of the units are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application.

Note that the above are only preferred embodiments of the present application and applied technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present application. The scope is determined by the scope of the appended claims.

Claims (10)

1. a shooting preview display method, is characterized in that, comprises: When shooting, determine whether to turn on the flash; If it is determined that the flash needs to be turned on, obtain the working parameters of the flash; Compensate the brightness of the preview image collected by the camera according to the working parameters of the flash to obtain the compensated preview image; The preview screen after compensation is displayed. 2. The method according to claim 1, wherein, when in a shooting state, determining whether to turn on the flash light is required, comprising: When shooting, determine whether the flash needs to be turned on according to the brightness of the ambient light; If it is determined that the flash needs to be turned on, the working parameters of the flash are obtained, including: If the brightness of the ambient light is lower than the preset brightness threshold, it is determined that the flash needs to be turned on, and the working parameters of the flash are obtained according to the corresponding relationship between the brightness of the ambient light and the working parameters of the flash. 3. The method according to claim 1, wherein, when in the shooting state, determining whether to turn on the flash light, comprising: When in the shooting state, determine whether the manual flash switch is turned on; If it is determined that the flash needs to be turned on, the working parameters of the flash are obtained, including: If the manual flash switch is turned on, it is determined that the flash needs to be turned on, and the working parameters of the flash are obtained according to the corresponding relationship between the brightness of the ambient light and the working parameters of the flash. 4. The method according to any one of claims 1 to 3, wherein the compensating the collected preview picture according to the working parameters of the flash to obtain the compensated preview picture, comprising: After adjusting the shooting parameters according to the working parameters of the flash, the preview image is collected and compensated to obtain the compensated preview image. 5. The method according to any one of claims 1 to 3, wherein the working parameters of the flashlight include the working time and brightness of the flashlight. 6. A photographing preview display device, characterized in that, comprising: The flash opening determination module is used to determine whether the flash needs to be turned on when it is in the shooting state; The flash parameter acquisition module is used to obtain the working parameters of the flash if it is determined that the flash needs to be turned on; a preview image compensation module, used for compensating the brightness of the preview image collected by the camera according to the working parameters of the flash to obtain a compensated preview image; The preview screen display module is used to display the preview screen after compensation. 7 . The device according to claim 6 , wherein the flashing light is turned on determining module, which is specifically used for determining whether to turn on the flashing light according to the brightness of ambient light when in a shooting state; 7 . The flash parameter obtaining module is specifically configured to determine that the flash needs to be turned on if the brightness of the ambient light is lower than the preset brightness threshold, and obtain the working parameters of the flash according to the corresponding relationship between the brightness of the ambient light and the working parameters of the flash. 8 . The device according to claim 6 , wherein the flash light is turned on determination module, which is specifically used to determine whether a manual flash switch is turned on when in a shooting state; 8 . The flash parameter obtaining module is specifically configured to determine that the flash needs to be turned on if the manual flash switch is turned on, and obtain the working parameters of the flash according to the corresponding relationship between the brightness of the ambient light and the working parameters of the flash. 9. A terminal, characterized in that it comprises: a memory, a processor and a computer program stored in the memory and running on the processor, when the processor executes the program, the program according to claims 1 to 5 is implemented. The shooting preview display method described in any one of the above. 10 . A computer-readable storage medium on which a computer program is stored, wherein when the computer program is executed by a processor, the method for displaying a shooting preview according to any one of claims 1 to 5 is implemented. 11 .

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