WO2018040174A1

WO2018040174A1 - Method and apparatus for setting preview resolution, and terminal

Info

Publication number: WO2018040174A1
Application number: PCT/CN2016/100682
Authority: WO
Inventors: 秦佳; 冯汝斌; 蔡恩祥
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2016-08-31
Filing date: 2016-09-28
Publication date: 2018-03-08
Also published as: CN106293589A; CN106293589B

Abstract

A method and apparatus for setting a preview resolution, and a terminal, wherein same relate to the technical field of communications and can solve the problem of the high power consumption of a mobile phone due to an extremely high preview resolution. The method comprises: acquiring a screen resolution of a terminal and an initial preview resolution during a photographing process of the terminal (101), wherein the initial preview resolution is the same as the resolution of a camera of the terminal; if the initial preview resolution is higher than the screen resolution (102), determining a preview proportion according to a perpendicular pixel number ratio of the initial preview resolution to the screen resolution and a horizontal pixel number ratio of the initial preview resolution to the screen resolution (103); and adjusting the preview resolution during the photographing process of the terminal from the initial resolution to a current preview resolution according to the preview proportion (104), wherein the current preview resolution is lower than the initial preview resolution. The method is applicable to the process of setting a preview resolution.

Description

Method, device and terminal for setting preview resolution

This application claims priority to Chinese Patent Application No. 201610790518.9, entitled "A Method, Apparatus and Terminal for Setting Preview Resolution", filed on August 31, 2016, the entire contents of which are hereby incorporated by reference. Combined in this application.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a terminal for setting a preview resolution.

Background technique

At present, the camera function has become one of the basic functions of electronic products such as mobile phones. Users have become accustomed to taking photos of their mobile phones to record what is happening in their lives. In the actual use process, the preview interface can present the picture currently captured by the camera, so that the user can adjust the shooting position according to the content displayed on the preview interface.

If the resolution of the preview interface is low, there may be a case where the preview effect is significantly different from the actual shooting effect. In order to make the preview effect close to the actual shooting effect, you can set the resolution of the preview interface and the resolution of the camera in the phone to the same resolution. For a camera with a higher resolution, the above implementation will result in a higher resolution of the preview interface. However, when the resolution of the preview interface reaches the maximum resolution that the display can support, the increase of the preview resolution does not improve the preview effect, and the higher preview resolution increases the real-time data generated during the user's shooting, thereby occupying A large amount of mobile phone memory and resources to increase mobile phone power consumption.

Summary of the invention

The invention provides a method, a device and a terminal for setting a preview resolution, which solves the problem that the terminal power consumption is large due to the high preview resolution.

To achieve the above objective, the embodiment of the present invention adopts the following technical solutions:

In a first aspect, the present invention provides a method for setting a preview resolution, the method comprising: acquiring a screen resolution of a terminal and an initial preview resolution during terminal shooting, the initial preview resolution and a camera resolution of the terminal The same; if the initial preview resolution is greater than the screen resolution, according to a ratio of the initial preview resolution to the number of vertical pixels of the screen resolution, and the initial preview resolution and the screen resolution The ratio of the number of horizontal pixels determines a preview ratio; according to the preview ratio, the preview resolution during the shooting of the terminal is adjusted from the initial resolution to the current preview resolution, and the current preview resolution is smaller than the initial Preview resolution.

In a second aspect, the present invention provides an apparatus for setting a preview resolution, the apparatus comprising: an acquisition module configured to acquire a screen resolution of the terminal and an initial preview resolution during terminal shooting, the initial preview resolution and The camera has the same resolution; the determining module is configured to: when the initial preview resolution acquired by the acquiring module is greater than the screen resolution acquired by the acquiring module, according to the initial preview resolution and the screen resolution a ratio of the number of pixels, and a ratio of the initial preview resolution to the number of horizontal pixels of the screen resolution determines a preview ratio; the adjustment module is configured to follow the preview ratio determined by the determining module, and the terminal is in the process of shooting The preview resolution is adjusted by the acquisition module to an initial resolution, and the current preview resolution is smaller than the initial preview resolution.

In a third aspect, the present invention provides a terminal, the terminal comprising at least the apparatus for setting a preview resolution according to the second aspect.

The method, device and terminal for setting preview resolution provided by the present invention, if the initial preview resolution obtained is greater than the screen resolution, the ratio of the vertical pixels according to the initial preview resolution and the screen resolution, and the horizontal pixels of the two The ratio of the number determines the preview ratio, and the preview resolution during the terminal shooting is adjusted from the initial preview resolution to the current preview resolution according to the preview ratio; otherwise, the initial preview resolution is still used as the preview resolution during the terminal shooting. Compared with the prior art, the preview resolution and the camera resolution are set to the same resolution. When the initial preview resolution is greater than the screen resolution, the initial adjustment resolution can be adjusted according to the ratio of the initial preview resolution to the screen resolution. Preview the resolution to get the current preview resolution that is less than the initial preview resolution. Since the current preview resolution is smaller than the initial preview resolution, the number of pixels of the current preview resolution is less than the number of pixels of the initial preview resolution. Therefore, in the process of previewing the terminal using the current preview resolution, the number of pixels that the terminal needs to update in real time is reduced, which reduces the power consumption of the terminal. Therefore, the present invention can solve the problem of large power consumption of the terminal due to excessive preview resolution.

DRAWINGS

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

FIG. 1 is a flowchart of a method for setting a preview resolution according to an embodiment of the present invention;

2 is a flowchart of another method for setting a preview resolution according to an embodiment of the present invention;

FIG. 3 is a flowchart of another method for setting a preview resolution according to an embodiment of the present invention;

4 is a flowchart of another method for setting a preview resolution according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an apparatus for setting a preview resolution according to an embodiment of the present invention;

FIG. 6 is a schematic block diagram of a structure of a terminal according to an embodiment of the present invention.

detailed description

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

The embodiment of the invention provides a method for setting a preview resolution, which can be applied to terminals such as mobile phones and tablet computers. As shown in FIG. 1 , the method process specifically includes:

101. Acquire a screen resolution of the terminal and an initial preview resolution during the terminal shooting.

Among them, the initial preview resolution is the same as the camera resolution of the terminal.

In practical applications, the user's shooting process involves three resolution parameters, including: camera resolution, screen resolution and preview resolution. In order to obtain pictures of different quality, you can select cameras with different resolutions to complete the image acquisition process. For example, the resolution of the camera with the size of 8M corresponds to 3264*2448, and the resolution of the camera with the size of 13M corresponds to 4208*. 3120. The resolution of the screen is determined by the hardware structure of the screen, such as the screen resolution of the FHD (English: Full High Definition) screen with a screen resolution of 1920*1080 and HD (English: High Definition) screen. The resolution is 1280*720. In order to guarantee the preview effect, the camera resolution is usually used as the preview resolution.

At present, due to the software part of the camera that implements the camera function, "preview" and "photographing" can be separately processed, that is, the preview uses a set of parameters, the camera uses another set of parameters, the parameters used in the preview process and the parameters used in the photographing process. Do not affect each other. Therefore, the change in preview resolution does not affect the quality of the image.

It should be noted that the user can select different camera resolutions according to his own needs, but when the camera of the terminal is fixed, the maximum resolution of the camera is the full-size resolution of the camera.

102. Determine if the initial resolution is greater than the screen resolution.

If the initial preview resolution is greater than the screen resolution, then

steps

103 and 104 are performed; otherwise, step 105 is performed.

103. Determine a preview ratio according to a ratio of an initial preview resolution to a vertical pixel number of the screen resolution, and a ratio of an initial preview resolution to a horizontal pixel number of the screen resolution.

When the initial preview resolution is greater than the screen resolution, the screen resolution becomes the main factor limiting the preview effect. At this time, the initial preview resolution is adjusted without affecting the preview effect. Therefore, the initial preview resolution can be reduced by the preview ratio.

The preview ratio can be determined by the ratio of the initial preview resolution to the number of vertical pixels of the screen resolution, and the ratio of the initial preview resolution to the number of horizontal pixels of the screen resolution. For example, the initial preview resolution is 3264*2448, the screen resolution is 1920*1080, the ratio of the initial preview resolution to the vertical resolution of the screen resolution is 3264/1920, and the initial preview resolution and the screen resolution are the number of horizontal pixels. The ratio is 2448/1080, and the preview ratio can be determined according to the ratio of the number of vertical pixels to 3264/1920 and the ratio of the horizontal pixels to 2448/1080. The specific determination method will be proposed later, and will not be described here.

104. According to the preview ratio, the preview resolution during the terminal shooting is adjusted from the initial resolution to the current preview resolution.

In the embodiment of the present invention, the current preview resolution is smaller than the initial preview resolution, which means that the initial preview resolution is reduced according to the preview ratio, and a current preview resolution smaller than the initial preview resolution can be obtained.

105. Set the initial resolution to the current preview resolution.

When the initial preview resolution is less than or equal to the screen resolution, the initial preview resolution is the main factor determining the preview effect. Adjusting the initial preview resolution may affect the preview effect. Therefore, in order to avoid the influence on the preview effect, the initial preview resolution is set to the current preview resolution, that is, the preview resolution during the terminal shooting is not adjusted.

A method for setting a preview resolution provided by an embodiment of the present invention, if the obtained initial preview resolution is greater than the screen resolution, the ratio of the vertical pixels according to the initial preview resolution and the screen resolution, and the number of horizontal pixels of the two Compared with determining the preview ratio, the preview resolution during terminal shooting is adjusted from the initial preview resolution to the current preview resolution according to the preview ratio; otherwise, the initial preview resolution is still used as the preview resolution during the terminal shooting. Compared with the prior art, the preview resolution and the camera resolution are set to the same resolution. When the initial preview resolution is greater than the screen resolution, the present invention can adjust the terminal according to the ratio of the initial preview resolution to the screen resolution. The preview ratio during shooting. Since the current preview resolution obtained after the adjustment is smaller than the initial preview resolution, the number of pixels of the current preview resolution is smaller than the number of pixels of the initial preview resolution. Therefore, in the process of previewing the terminal using the current preview resolution, the number of pixels that the terminal needs to update in real time is reduced, which reduces the power consumption of the terminal. Therefore, the present invention can solve the problem of large power consumption of the terminal due to excessive preview resolution.

In an implementation manner of the embodiment of the present invention, the number of vertical pixels of the initial preview resolution is greater than the number of vertical pixels of the screen resolution, and the horizontal pixels of the initial preview resolution are used to reduce the influence of the preview resolution. When the number of horizontal pixels is larger than the screen resolution, the preview resolution needs to be adjusted. Therefore, on the basis of the implementation shown in FIG. 1, an implementation as shown in FIG. 2 can also be implemented. The step 102 determines whether the initial resolution is greater than the screen resolution, and may be specifically implemented as steps 1021 to 1024:

1011: Determine whether the number of vertical pixels of the initial preview resolution is greater than the number of vertical pixels of the screen resolution.

If the number of vertical pixels of the initial preview resolution is greater than the number of vertical pixels of the screen resolution, step 1022 is performed; otherwise, step 1024 is performed.

1022. Determine whether the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution.

If the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution, step 1023 is performed; otherwise, step 1024 is performed.

If the number of vertical pixels of the initial preview resolution is less than or equal to the number of vertical pixels of the screen resolution, indicating that the initial preview resolution is the main factor affecting the preview effect in the vertical direction, adjusting the initial preview resolution may affect the preview effect. . If the number of horizontal pixels of the initial preview resolution is less than the number of horizontal pixels of the screen resolution, indicating that the initial preview resolution is the main factor affecting the preview effect in the horizontal direction, adjusting the initial preview resolution at this time may affect the preview effect. Therefore, in the embodiment of the present invention, in order to reduce the influence on the preview effect, when the number of vertical pixels of the initial preview resolution is less than or equal to the number of vertical pixels of the screen resolution or the number of horizontal pixels of the initial preview resolution is less than or the screen resolution When the number of horizontal pixels is the rate, it is determined that the initial preview resolution is less than or equal to the screen resolution. When the initial pixel number of the initial preview resolution is greater than the number of vertical pixels of the screen resolution, and the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution, it is determined that the initial preview resolution is greater than the screen resolution. For example, when the initial preview resolution is 3264*2448 and the screen resolution is 1920*1080, it is determined that the initial preview resolution is greater than the screen resolution; when the initial preview resolution is 1280*960 and the screen resolution is 1920*1080, Make sure the initial resolution is less than or equal to the screen resolution.

1023. Determine that the initial preview resolution is greater than the screen resolution.

1024. Determine that the initial preview resolution is less than or equal to the screen resolution.

It should be noted that the present invention is not limited to the order of comparison of the number of vertical pixels and the comparison process of the number of horizontal pixels.

The method for setting a preview resolution provided by the embodiment of the present invention, if the number of vertical pixels of the initial preview resolution is greater than the number of vertical pixels of the screen resolution, and the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution, then Determine that the initial preview resolution is greater than the screen resolution; otherwise determine that the initial preview resolution is less than or equal to the screen resolution. Compared with the prior art, the preview resolution and the camera resolution are set to the same resolution, and the present invention solves the problem of large power consumption of the terminal due to excessive preview resolution, only when the initial preview resolution is When the number of vertical pixels is greater than the number of vertical pixels of the screen resolution, and the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution, it is determined that the initial preview resolution is greater than the screen resolution, thereby avoiding the initial preview resolution adjustment. Reasonable, the impact on the preview effect.

In an implementation manner of the embodiment of the present invention, a smaller value of the ratio of the number of vertical pixels to the number of horizontal pixels is used as the preview ratio. Therefore, on the basis of the implementation shown in FIG. 1, an implementation as shown in FIG. 3 can also be implemented. The step 103 determines the preview ratio according to the ratio of the initial preview resolution to the vertical pixel number of the screen resolution and the ratio of the initial preview resolution to the horizontal pixel number of the screen resolution, which may be specifically implemented as steps 1031 to 1033:

1031. Determine whether the ratio of the number of vertical pixels is greater than the ratio of the number of horizontal pixels.

If the ratio of the number of vertical pixels is greater than the ratio of the number of horizontal pixels, step 1032 is performed; otherwise, step 1033 is performed.

In order to prevent the adjusted initial preview resolution from being smaller than the screen resolution, thereby affecting the preview effect, the smaller of the ratio of the horizontal pixel number to the vertical pixel number is determined as the preview ratio. For example, the initial preview resolution is 3264*2448, the screen resolution is 1920*1080, the ratio of vertical pixels is 3264/1920 is less than the ratio of horizontal pixels to 2448/1080, and the ratio of the number of vertical pixels is determined as the preview ratio; initial preview The resolution is 3264*2448, the screen resolution is 1280*1024, the ratio of vertical pixels is 3264/1280 is greater than the ratio of horizontal pixels to 2448/1024, and the ratio of the number of horizontal pixels is determined as the preview ratio.

1032. Determine the ratio of the number of horizontal pixels as the preview ratio.

1033. Determine the ratio of the number of vertical pixels as the preview ratio.

The method for setting the preview resolution provided by the embodiment of the present invention, the ratio of the preview resolution to the vertical pixel number of the screen resolution, and the smaller one of the ratio of the preview resolution to the horizontal pixel number of the screen resolution is used as the preview ratio. Compared with the prior art, the preview resolution and the camera resolution are set to the same resolution, and the present invention solves the problem that the terminal power consumption is large due to the excessive preview resolution, by using the preview resolution and The ratio of the vertical pixel count of the screen resolution and the smaller of the ratio of the preview resolution to the horizontal pixel number of the screen resolution as the preview ratio ensures that the adjusted initial preview resolution is still greater than the screen resolution, thereby The initial preview resolution is adjusted without affecting the preview.

In an implementation manner of the embodiment of the present invention, the number of vertical pixels and the number of vertical pixels of the initial resolution are respectively adjusted according to a certain ratio in order to ensure that the preview interface is not deformed after the preview resolution is adjusted. Therefore, on the basis of the implementation shown in FIG. 1, an implementation as shown in FIG. 4 can also be implemented. The step 104 adjusts the preview resolution during the terminal shooting from the initial resolution to the current preview resolution according to the preview ratio, which may be specifically implemented as steps 1041 to 1043:

1041. Decrease the number of vertical pixels and horizontal pixels of the initial preview resolution according to the preview ratio.

1042. Set the number of vertical pixels and horizontal pixels of the reduced initial preview resolution to the number of vertical pixels and horizontal pixels of the current preview resolution.

1043. Adjust the preview resolution during the terminal shooting to the current preview resolution.

For example, the initial preview resolution is 3264*2448, the screen resolution is 1920*1080, and the initial pixel number of the initial preview resolution is 3264, which is adjusted according to the preview ratio 3264/1920, and the number of vertical pixels of the current preview resolution is 3264/ (3264/1920)=1920; the number of horizontal pixels of the initial preview resolution is 2448, adjusted according to the preview ratio 3264/1920, and the horizontal resolution of the current preview resolution is 2448/(3264/1920)=1440, which is the current preview. The resolution is 1920*1440. At this time, the preview resolution during terminal shooting can be adjusted from 3264*2448 to 1920*1440.

It should be noted that when the initial preview resolution is 3264*2448 and the screen resolution is 1920*1080, if the preview ratio is determined to be 2448/1080, the number of vertical pixels of the current preview resolution is 1440, and the number of horizontal pixels is 1080, it can be seen that the current preview resolution of the number of vertical pixels 1440 is less than the vertical resolution of the screen resolution of 1920, which will affect the preview effect.

The method for setting the preview resolution provided by the embodiment of the present invention adjusts the number of vertical pixels and the number of horizontal pixels of the initial preview resolution according to the preview ratio, and distinguishes the number of vertical pixels and the number of horizontal pixels of the current preview resolution, and shoots the terminal. The preview resolution in the process is adjusted to the current preview resolution. Compared with the prior art, the preview resolution and the camera resolution are set to the same resolution, and the present invention solves the problem of large power consumption of the terminal due to excessive preview resolution, and the initial preview resolution. The number of vertical pixels and the number of horizontal pixels are adjusted in the same proportion to ensure that the preview interface does not deform relative to the image captured by the camera.

The embodiment of the present invention further provides an apparatus 20 for setting a preview resolution. As shown in FIG. 5, the apparatus 20 is configured to perform any method flow as shown in FIG. 1 to FIG.

The obtaining module 21 is configured to acquire the screen resolution of the terminal and the initial preview resolution during the terminal shooting, and the initial preview resolution is the same as the camera resolution of the terminal.

The determining module 22 is configured to, when the initial preview resolution acquired by the obtaining module 21 is greater than the screen resolution acquired by the obtaining module 21, the ratio of the initial preview resolution to the vertical pixel number of the screen resolution, and the initial preview resolution and the screen The ratio of the number of horizontal pixels of the resolution determines the preview ratio.

The adjustment module 23 is configured to adjust the initial resolution acquired by the acquisition module 21 to the current preview resolution according to the preview ratio determined by the determination module 22, and the current preview resolution is smaller than the initial preview resolution.

In an implementation manner of the embodiment of the present invention, the device 20 further includes:

The determining module 24 is configured to determine whether the number of vertical pixels of the initial preview resolution acquired by the obtaining module 21 is greater than the number of vertical pixels of the screen resolution acquired by the acquiring module 21; and when the number of vertical pixels of the initial preview resolution is greater than the screen resolution When the number of vertical pixels is used, it is judged whether the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution.

The determining module 22 is further configured to determine that the initial preview resolution is greater than the screen resolution when the determining module 24 determines that the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution.

In an implementation manner of the embodiment of the present invention, the determining module 22 is specifically configured to determine, when the ratio of the number of vertical pixels is greater than the ratio of the number of horizontal pixels, the ratio of the number of horizontal pixels is determined as a preview ratio; when the ratio of the number of vertical pixels is less than Or equal to the ratio of the number of horizontal pixels, the ratio of the number of vertical pixels is determined as the preview ratio.

In an implementation manner of the embodiment of the present invention, the adjusting module 23 is specifically configured to reduce the number of vertical pixels and the number of horizontal pixels of the initial preview resolution according to the preview ratio; the number of vertical pixels of the reduced initial preview resolution and The number of horizontal pixels, set to the number of vertical pixels and horizontal pixels of the current preview resolution; adjust the preview resolution during terminal shooting to the current preview resolution.

The determining module 22 is further configured to set the initial resolution to the current preview resolution when the initial resolution is less than or equal to the screen resolution.

The apparatus for setting a preview resolution provided by the embodiment of the present invention, if the obtained initial preview resolution is greater than the screen resolution, the ratio of the vertical pixels according to the initial preview resolution and the screen resolution, and the number of horizontal pixels of the two Compared with determining the preview ratio, the preview resolution during terminal shooting is adjusted from the initial preview resolution to the current preview resolution according to the preview ratio; otherwise, the initial preview resolution is still used as the preview resolution during the terminal shooting. Compared with the prior art, the preview resolution and the camera resolution are set to the same resolution. When the initial preview resolution is greater than the screen resolution, the present invention can adjust the terminal according to the ratio of the initial preview resolution to the screen resolution. The preview ratio during shooting. Since the current preview resolution obtained after the adjustment is smaller than the initial preview resolution, the number of pixels of the current preview resolution is smaller than the number of pixels of the initial preview resolution. Therefore, in the process of previewing the terminal using the current preview resolution, the number of pixels that the terminal needs to update in real time is reduced, which reduces the power consumption of the terminal. Therefore, the present invention can solve the problem of large power consumption of the terminal due to excessive preview resolution.

The embodiment of the present invention further provides a terminal, where the terminal is configured to execute the method flow shown in FIG. 1 to FIG. 4, and the terminal at least includes the apparatus for setting a preview resolution as shown in FIG. 5. The terminal provided by the embodiment of the present invention determines the preview ratio according to the ratio of the initial preview resolution to the vertical pixel number of the screen resolution and the ratio of the horizontal pixels of the two, if the obtained initial preview resolution is greater than the screen resolution. The preview resolution during terminal shooting is adjusted from the initial preview resolution to the current preview resolution according to the preview ratio; otherwise, the initial preview resolution is still used as the preview resolution during the terminal shooting. Compared with the prior art, the preview resolution and the camera resolution are set to the same resolution. When the initial preview resolution is greater than the screen resolution, the present invention can adjust the terminal according to the ratio of the initial preview resolution to the screen resolution. The preview ratio during shooting. Since the current preview resolution obtained after the adjustment is smaller than the initial preview resolution, the number of pixels of the current preview resolution is smaller than the number of pixels of the initial preview resolution. Therefore, in the process of previewing the terminal using the current preview resolution, the number of pixels that the terminal needs to update in real time is reduced, which reduces the power consumption of the terminal. Therefore, the present invention can solve the problem of large power consumption of the terminal due to excessive preview resolution.

Specifically, referring to FIG. 6, a schematic block diagram of a structure of a terminal 30 according to an embodiment of the present invention is shown. The terminal 30 in the embodiment of the present invention may be different types of electronic devices, such as: smart phones, tablet computers, palmtop computers, and mobile internet devices, personal digital assistants, media players, smart televisions, smart watches, smart glasses, smart hands. Ring and so on. As shown in FIG. 7, the terminal 30 in the embodiment of the present invention includes at least one processor 31, such as a CPU, at least one receiver 33, at least one memory 34, at least one transmitter 35, and at least one communication bus 32. The communication bus 32 is used to implement connection communication between these components. The receiver 33 and the transmitter 35 may be wired transmission ports or wireless devices, for example, including antenna devices for data communication with other devices. The memory 34 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.

The processor 31 can execute the operating system of the terminal 30 and various installed application programs, program codes, and the like. For example, each module described above includes the acquiring module 21, the determining module 22, and the like.

Program code is stored in the memory 34, and the processor 31 can call the program code stored in the memory 34 via the communication bus 32 to perform related functions. For example, the various modules (e.g., the acquisition module 21, the determination module 22, etc.) described in FIG. 5 are program codes stored in the memory 34, and are executed by the processor 31, thereby implementing The functions of the various modules are implemented to implement a method of setting a preview resolution.

In one embodiment of the invention, the memory 34 stores a plurality of instructions that are executed by the processor 31 to implement a method of setting a preview resolution. Specifically, the performing, by the processor 31, the execution of the multiple instructions includes: acquiring a screen resolution of the terminal and an initial preview resolution during the terminal shooting, where the initial preview resolution is the same as the camera resolution of the terminal; If the initial preview resolution is greater than the screen resolution, a ratio of the initial preview resolution to the number of vertical pixels of the screen resolution, and a level of the initial preview resolution and the screen resolution The ratio of the number of pixels determines a preview ratio; according to the preview ratio, the preview resolution during the shooting of the terminal is adjusted from the initial resolution to a current preview resolution, and the current preview resolution is smaller than the initial preview resolution. rate.

In a further embodiment, after the initial preview resolution and the screen resolution of the acquiring terminal, the processor 31 further: determining whether the vertical pixel number of the initial preview resolution is greater than the vertical of the screen resolution. a number of pixels; if the number of vertical pixels of the initial preview resolution is greater than the number of vertical pixels of the screen resolution, determining whether the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution; If the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution, it is determined that the initial preview resolution is greater than the screen resolution.

In a further embodiment, the ratio of the initial preview resolution to the number of vertical pixels of the screen resolution, and the ratio of the initial preview resolution to the horizontal pixel number of the screen resolution determine a preview The ratio includes: if a ratio of the number of vertical pixels is greater than a ratio of the number of horizontal pixels, determining a ratio of the number of horizontal pixels as the preview ratio; if a ratio of the number of vertical pixels is less than or equal to the ratio The ratio of the number of horizontal pixels determines the ratio of the number of vertical pixels as the preview ratio.

In a further embodiment, the adjusting the initial preview resolution of the terminal to the current preview resolution according to the preview ratio comprises: reducing a vertical pixel number of the initial preview resolution according to the preview ratio The number of horizontal pixels; the number of vertical pixels and horizontal pixels of the reduced initial preview resolution, the number of vertical pixels and the number of horizontal pixels of the current preview resolution; and the preview resolution during the shooting of the terminal Adjust to the current preview resolution.

In a further embodiment, after the initial preview resolution and screen resolution of the acquisition terminal, the processor 31 sets the initial resolution if the initial resolution is less than or equal to the screen resolution. The current preview resolution.

For details, refer to the description of the related steps in the corresponding embodiment in FIG. 1-4, and the details are not described here.

The various embodiments in the specification are described in a progressive manner, and the same or similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (English: Read-Only Memory, ROM for short) or a random access memory (English: Random Access Memory, RAM for short).

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. All should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

A method for setting a preview resolution, the method comprising:

Obtaining a screen resolution of the terminal and an initial preview resolution during terminal shooting, the initial preview resolution being the same as the camera resolution of the terminal;

If the initial preview resolution is greater than the screen resolution, a ratio of the initial preview resolution to the number of vertical pixels of the screen resolution, and a level of the initial preview resolution and the screen resolution The ratio of the number of pixels determines the preview ratio;

According to the preview ratio, the preview resolution during the shooting of the terminal is adjusted from the initial resolution to the current preview resolution, and the current preview resolution is smaller than the initial preview resolution.
The method according to claim 1, wherein after the initial preview resolution and the screen resolution of the acquiring terminal, the method further comprises:

Determining whether the number of vertical pixels of the initial preview resolution is greater than the number of vertical pixels of the screen resolution;

If the number of vertical pixels of the initial preview resolution is greater than the number of vertical pixels of the screen resolution, determining whether the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution;

If the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution, it is determined that the initial preview resolution is greater than the screen resolution.
The method according to claim 1, wherein said ratio of said initial preview resolution to said vertical resolution of said screen resolution, and said initial preview resolution and said screen resolution level The ratio of the number of pixels determines the preview ratio, including:

If the ratio of the number of vertical pixels is greater than the ratio of the number of horizontal pixels, determining a ratio of the number of horizontal pixels as the preview ratio;

If the ratio of the number of vertical pixels is less than or equal to the ratio of the number of horizontal pixels, the ratio of the number of vertical pixels is determined as the preview ratio.
The method according to claim 1, wherein the adjusting the initial preview resolution of the terminal to the current preview resolution according to the preview ratio comprises:

Decreasing the number of vertical pixels and horizontal pixels of the initial preview resolution according to the preview ratio;

Setting the number of vertical pixels and horizontal pixels of the reduced initial preview resolution to the number of vertical pixels and horizontal pixels of the current preview resolution;

The preview resolution during the shooting of the terminal is adjusted to the current preview resolution.
The method according to any one of claims 1 to 4, further comprising: after the initial preview resolution and the screen resolution of the acquiring terminal,

If the initial resolution is less than or equal to the screen resolution, the initial resolution is set to the current preview resolution.
A device for setting a preview resolution, the device comprising:

Obtaining a module, configured to obtain a screen resolution of the terminal and an initial preview resolution during terminal shooting, the initial preview resolution being the same as the camera resolution of the terminal;

a determining module, configured to: when the initial preview resolution acquired by the acquiring module is greater than the screen resolution acquired by the acquiring module, according to a ratio of the initial preview resolution to the vertical pixel number of the screen resolution, and Determining a preview ratio by comparing a ratio of an initial preview resolution to a horizontal pixel number of the screen resolution;

And an adjustment module, configured to adjust, according to the preview ratio determined by the determining module, an initial resolution obtained by the acquiring module in a preview resolution during the shooting of the terminal to a current preview resolution, where the current preview resolution is smaller than The initial preview resolution.
The device according to claim 6, wherein the device further comprises:

a judging module, configured to determine whether the number of vertical pixels of the initial preview resolution acquired by the acquiring module is greater than the number of vertical pixels of the screen resolution acquired by the acquiring module; and when the number of vertical pixels of the initial preview resolution is greater than When the number of vertical pixels of the screen resolution is described, it is determined whether the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution;

The determining module is further configured to determine that the initial preview resolution is greater than the screen resolution when the determining module determines that the number of horizontal pixels of the initial preview resolution is greater than the number of horizontal pixels of the screen resolution.
The apparatus according to claim 6, wherein the determining module is specifically configured to determine, when the ratio of the number of vertical pixels is greater than a ratio of the number of horizontal pixels, determine a ratio of the number of horizontal pixels as Preview ratio

When the ratio of the number of vertical pixels is less than or equal to the ratio of the number of horizontal pixels, the ratio of the number of vertical pixels is determined as the preview ratio.
The apparatus according to claim 6, wherein the adjustment module is specifically configured to reduce the number of vertical pixels and the number of horizontal pixels of the initial preview resolution according to the preview ratio; and to reduce the initial preview The number of vertical pixels and the number of horizontal pixels of the resolution are set to the number of vertical pixels and the number of horizontal pixels of the current preview resolution; and the preview resolution during the shooting of the terminal is adjusted to the current preview resolution;

The determining module is further configured to set the initial resolution to a current preview resolution when the initial resolution is less than or equal to the screen resolution.
A terminal, characterized in that the terminal comprises at least the apparatus for setting a preview resolution according to any one of claims 6 to 9.