WO2019071548A1

WO2019071548A1 - Terminal photograph capturing control method, mobile terminal, and readable storage medium

Info

Publication number: WO2019071548A1
Application number: PCT/CN2017/105969
Authority: WO
Inventors: 张学熙
Original assignee: 深圳传音通讯有限公司
Priority date: 2017-10-13
Filing date: 2017-10-13
Publication date: 2019-04-18
Also published as: CN111213363A

Abstract

Disclosed are a terminal photograph capturing control method, a mobile terminal, and a readable storage medium. The terminal photograph capturing control method comprises the following steps: detecting whether a mode switching instruction inputted by a user is received by a terminal; if the mode switching instruction is received by the terminal, shielding a preset peripheral area of a preview image buffered in the terminal; when a photograph capturing instruction is received, cropping the preset peripheral area in the preview image so as to acquire a target photograph corresponding to the mode switching instruction. The present invention is such that, first, a preview image of an original size is shielded to form a new preview image when the user switches to a square photographing mode, then, the preview image is cropped and saved in a specific format to produce a photograph. The present invention, by performing processing such as cropping of a preview image, produces a photograph identical in terms of aspect ratio to a photograph capturing mode, thus preventing lagging caused by the reloading of the preview image, implementing smooth operation of the mobile terminal when switching photograph modes, and enhancing user experience.

Description

Terminal photographing control method, mobile terminal and readable storage medium

Technical field

The present invention relates to the field of image processing technologies, and in particular, to a terminal photographing control method.

Background technique

At present, the camera function of the mobile terminal is one of the most commonly used functions of the user, and the special wide and high ratio camera mode such as the square photo is obviously different from the photo effect taken by the current mainstream 16:9 or 4:3 size photo mode. To make the user experience higher. However, when setting a square photo mode, firstly, the preview image stored in the mobile terminal cache needs to be reloaded to adjust the aspect ratio of the preview image, and the process of reloading the preview image will produce an obvious jam, especially When the user takes a photo using the no-delay mode, the normal use of the user is adversely affected, thereby reducing the user experience.

Summary of the invention

The main purpose of the present invention is to provide a terminal photographing control method, which aims to solve the problem of jamming caused by the need to reload the preview image when the photographing mode is switched when the photographing is performed using the mobile terminal.

To achieve the above objective, the present invention provides a terminal photographing control method, and the terminal photographing control method includes the following steps:

Detecting a mode switching instruction of a user input received by the terminal;

If the terminal receives the mode switching instruction, the preset image edge region of the preview image in the terminal buffer is occluded;

When receiving the photographing instruction, the preset edge area in the preview image is cropped to obtain the target photo corresponding to the mode switching instruction.

Optionally, if the terminal receives the mode switching instruction, the step of occluding the preview image preset edge region stored in the terminal cache includes:

If the terminal receives the mode switching instruction, the shooting parameter of the terminal photographing mode is updated according to the mode switching instruction;

According to the aspect ratio in the updated shooting parameters, the preset edge area in the preview image in the terminal buffer is determined, and the preview image preset edge area is occluded.

Optionally, the determining, according to the aspect ratio in the updated shooting parameters, the determining the preset edge region in the preview image in the terminal cache includes:

Determining the geometric center of the preview image by the intersection of the diagonal lines;

Using the geometric center as a geometric center, generating a geometric shape in which the width of the preview image is a width and the length satisfies the aspect ratio of the shooting;

The generated geometry is compared with the preview image, and the area in which the preview image is not in the geometry is set as the preset edge area.

Optionally, the comparing the generated geometric figure with the preview image, and the step of the preview image not being in the geometric figure being the preset edge area comprises:

By setting the brightness of the preset edge area to zero, the edge area is not displayed when it is displayed.

Optionally, when the photographing instruction is received, the step of cutting the preset edge region in the preview image to obtain the target photo corresponding to the mode switching instruction includes:

If the photographing instruction is received, the aspect ratio of the preview image is made to satisfy the aspect ratio of the target photograph by trimming the preset edge region.

Optionally, the step of trimming the preset edge region such that the aspect ratio of the preview image satisfies the aspect ratio of the target photo includes:

Compress the cropped preview image to generate a target photo in a preset format and save it.

Optionally, the step of compressing the trimmed preview image to generate a target photo in a preset format and saving the method includes:

Detecting whether a processing request from a third-party application is received;

If a processing request from a third-party application is detected, the target photo is sent to a third-party application for processing and the returned photo is saved.

In addition, in order to achieve the above object, the present invention further provides a mobile terminal, where the mobile terminal includes: a memory, a processor, and a terminal photographing control method program stored on the memory and operable on the processor, where The steps of the terminal photographing control method method as described above are implemented when the terminal photographing control method program is executed by the processor.

In addition, in order to achieve the above object, the present invention further provides a computer readable storage medium, the terminal photographing control method program stored on the computer readable storage medium, and the terminal photographing control method program is implemented by the processor as described above The steps of the method for controlling the terminal photographing method.

The terminal photographing control method proposed by the invention can process the squared mode aspect ratio by occluding the already stored preview image in the cache when the user is in the no-delay photographing mode and switching the square mode. Instead of reloading the preview image of the square mode aspect ratio, the mobile terminal does not cause a jam due to reloading the preview image, and the user is photographed by cropping and adjusting the preview image to the square mode configuration. The square photo allows the user to use the square photo more smoothly and smoothly, which improves the user experience.

DRAWINGS

1 is a schematic structural diagram of a terminal/device in a hardware operating environment according to an embodiment of the present invention;

2 is a schematic flowchart of an embodiment of a method for controlling a terminal of a terminal according to an embodiment of the present invention;

3 is a schematic flowchart of the steps of the step S20 in another embodiment of the terminal photographing control method according to the present invention;

FIG. 4 is a schematic diagram of a scene for cropping a preview image according to a terminal photographing control method of the present invention.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

Detailed ways

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in FIG. 1, FIG. 1 is a schematic structural diagram of a terminal in a hardware operating environment according to an embodiment of the present invention.

The terminal of the embodiment of the invention may also be a smart phone, a tablet computer, an e-book reader, and an MP3 (Moving Picture) Experts Group Audio Layer III, Motion Picture Expert Compress Standard Audio Level 3) Player, MP4 (Moving Picture Experts Group Audio Layer IV, dynamic video experts compress standard audio layers 3) Players, portable computers and other portable terminal devices with display functions.

As shown in FIG. 1, the terminal may include a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to implement connection communication between these components. The user interface 1003 can include a display, an input unit such as a keyboard, and the optional user interface 1003 can also include a standard wired interface, a wireless interface. The network interface 1004 can optionally include a standard wired interface, a wireless interface (such as a WI-FI interface). The memory 1005 may be a high speed RAM memory or a stable memory (non-volatile) Memory), such as disk storage. The memory 1005 can also optionally be a storage device independent of the aforementioned processor 1001.

Optionally, the terminal may further include a camera, RF (Radio) Frequency, RF) circuits, sensors, audio circuits, WiFi modules, and more. Among them, sensors such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display according to the brightness of the ambient light, and the proximity sensor may turn off the display and/or when the mobile terminal moves to the ear. Backlighting. As a kind of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (usually three axes), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, Related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; of course, the mobile terminal can also be equipped with other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. No longer.

It will be understood by those skilled in the art that the terminal structure shown in FIG. 1 does not constitute a limitation to the terminal, and may include more or less components than those illustrated, or a combination of certain components, or different component arrangements.

As shown in FIG. 1, a memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a square mode photographing program.

In the terminal shown in FIG. 1, the network interface 1004 is mainly used to connect to the background server and perform data communication with the background server; the user interface 1003 is mainly used to connect the client (user end), and perform data communication with the client; and the processor 1001 can be used to call a square mode photographing program stored in the memory 1005 and perform the following operations:

Detecting whether a received photo mode switching instruction of the user input is received;

If the photo mode switching instruction is received, the preview image stored in the cache is occluded;

When a photo command is received, the preview image is cropped and saved.

Further, the processor 1001 can call the square mode photographing program stored in the memory 1005, and also perform the following operations:

The determining, according to the aspect ratio in the updated shooting parameters, the determining the preset edge region in the preview image in the terminal cache includes:

The comparing the generated geometric figure with the preview image, and the step of the preview image not being in the geometric figure is set as the preset edge area, and the following steps are:

The step of trimming the preset edge region such that the aspect ratio of the preview image satisfies the aspect ratio of the target photo includes:

The step of compressing the trimmed preview image to generate a target photo in a preset format and saving the method includes:

The step of detecting whether a processing request sent by a third-party application is received includes:

If the processing request of the third-party application is not detected, the target photo file is saved locally according to the preset path.

Referring to FIG. 2, a first embodiment of the present invention provides a terminal photographing control method, where the terminal photographing control method includes:

Step S10, detecting a mode switching instruction of the user input received by the terminal;

Specifically, in general, the size ratio of the default photo mode of the mobile terminal is 16:9 or 4:3 (the size ratio of some large-screen mobile terminals is also close to 2:1), and now due to the development and improvement of the photographing technology, More and more special proportion photos have been used, including square photos with an aspect ratio of 1:1, and users can switch the camera mode according to their own preferences and needs during the photo process. When the photographing mode is switched, the user inputs a switching instruction by selecting a photographing mode or the like to control the switching of the photographing mode by the mobile terminal.

Step S20: If the terminal receives the mode switching instruction, the preset image edge region of the preview image in the terminal buffer is occluded;

Specifically, after receiving the switching instruction of the photographing mode, the preview image stored in the cache also needs to be correspondingly performed, and then since the switching of the photographing mode is only the adjustment of the aspect ratio, the content does not substantially change, and the conventional The way to cache the content is to reload the preview image, but the reloading is too large, which will cause obvious jamming. Therefore, the present invention uses the occlusion processing of the cached image, and the preview image aspect ratio after occlusion is blocked. It is consistent with the aspect ratio of the photo mode, and the photo content is clearly different.

Step S30, when receiving the photographing instruction, trimming the preset edge region in the preview image to obtain the target photo corresponding to the mode switching instruction;

Specifically, when the user issues a photographing instruction, that is, the user wants to photograph the content of the current preview image. Therefore, the preview image is cropped (the occlusion is previewed, so the actual aspect ratio is not changed), the preview image is cropped to the same aspect ratio as the photo mode, and the preview image is compressed into a preset photo format by compression. Finally, save and complete the photo.

Nowadays people use mobile terminals to take pictures has become a habit in life, and with the rapid development of technology, the camera mode has become more abundant, different aspect ratios, and various parameter adjustments can make users aware. And get more photos for fun. Including zero-latency camera mode (ZSD), the biggest feature of the zero-latency camera mode is that it can quickly shoot continuously without beautifying and correcting the photos when shooting. Since the zero-latency photographing requires rapid continuous shooting, the user needs to judge whether to shoot according to the preview image. The preview image is the currently acquired scene of the camera, and can be roughly regarded as the currently photographable photo, since the preview image needs to be updated. , so the preview image is stored in the cache (because the cache is faster than other storage).

Due to the special photo mode such as square, the aspect ratio of the photo is different from the default aspect ratio of the mobile terminal (generally, the default ratio is 16:9 or 4:3), so when the square photo mode is selected, Need to adjust multiple parameters. The method used in the prior art is to set the aspect ratio of the preview and the photographing to a ratio of 1:1, and the process of switching the aspect ratio requires first closing the preview image of the original aspect ratio, and re-empting 1: 1 aspect ratio opens the preview image, but since the process of closing the original preview image to opening the new preview image has a large amount of calculation on the system, it will cause obvious jamming phenomenon when used, and the specific use is When the user switches the photo mode, he or she feels that there is a noticeable jam when switching, which greatly damages the user experience.

The switch between the aspect ratio of the photo, the actual problem is how to put the same content into different photos, and the aspect ratio indicates to some extent how much content the photo can be loaded, so the photo mode is switched, essentially taking pictures. The definition of the obtained screen content, assuming that the aspect ratio is 16:9, the user takes a picture of a certain camera setting (including the camera distance such as the focus distance and the aperture size) to obtain a 16-length, 9-meter-wide screen content. If the user switches to the square photo mode and shoots the same position with the same camera settings, the screen content will be 9 meters long. Changing the aspect ratio will also reduce the content acquired in the picture. Why do you still want to do this? For different devices, the larger the aspect ratio, the better. Because the maximum pixel of a device (image element, resolution size unit, higher bit pixel, the more swatch it has, the more it can express The realism of color.) is often fixed, and the larger the photo, the higher the requirements for the pixel, otherwise the picture will be blurred. Correspondingly, when the size ratio is correspondingly reduced, since the maximum pixel of the device is unchanged, the photographed picture can be made more realistic and clearer.

The aspect ratio switching also allows the user to take a photo that highlights a certain problem. For example, when a user takes a photo of a character, the character will be highlighted as much as possible, and one of the ways is to make the character occupy as much as possible. A lot of pictures, so that the main body of the picture is highlighted. But in most cases, for a variety of reasons (assuming the subject is a character, taking a certain distance to capture the panorama of the character, or need to reflect the background image of the person, etc., then the character can only occupy a small part of the picture ), so that when the photo is taken, the screen theme can only occupy a small part of the picture. Switching to a photo mode with a smaller aspect ratio can solve this problem to a certain extent, because the aspect ratio is reduced, so that the content acquired by the photo is correspondingly reduced, and since the size of the character is not reduced, the character is made This picture body is more prominent in the entire picture. Therefore, when shooting a character or having a specific theme, selecting a photo mode with a small aspect ratio helps to highlight the subject of the shot, while photographing the landscape has no obvious theme, and only to highlight the beautiful picture of the picture, it is better to choose the width. High ratio photo mode.

The invention does not close the data in the cache when switching the square photo mode, because the data stored in the buffer is the picture content when the width and height are relatively large, and when switching to the square photo mode, since the aspect ratio is The size of the screen will be reduced to a certain extent, so the image data stored in the cache (the photo with larger width and height) is a preview image (the photo with smaller width and height) after the aspect ratio is switched. Therefore, the present invention performs a certain cropping on the stored screen content in the cache, and displays the screen content in a switched proportion (a common schematic diagram of photo cropping is shown in FIG. 4), so that the user can quickly obtain the aspect ratio after switching. preview. Although the preview image after switching the aspect ratio is obtained by cropping the original preview image, the newly obtained preview image is not exactly the same (because some photo parameters may be adjusted, such as resolution, etc.), However, for the preview effect, there is no significant difference between the two, and the preview is only a means for the user to initially judge the shooting effect, and the specific shooting effect needs to be identified by photographing. However, although the present invention does not actually switch the preview size, the parameters of the photographing size are still adjusted, so that after the user takes the photograph, the obtained photograph is still the aspect ratio after the switching. And because the step of re-executing the preview image buffer is eliminated, the user does not feel the obvious jam, thereby improving the user experience.

Further, referring to FIG. 3, if the terminal receives the mode switching instruction, the step of occluding the preview image preset edge region stored in the terminal cache includes:

Step S21: If the terminal receives the mode switching instruction, update the shooting parameters of the terminal photographing mode according to the mode switching instruction;

Specifically, after receiving the instruction that the user switches the square photo mode, first acquiring the current photo mode of the mobile terminal, and acquiring the aspect ratio corresponding to the current photo mode, if the ratio of the aspect ratio of the photo to the square photo mode is different, The photo aspect ratio is adjusted to 1:1 in square photo mode. After the related data such as the aspect ratio of the current photo mode is acquired, the photographing configuration is adjusted according to the instruction of the photo mode switching. For example, the height and width of the photo, the format of the photo, and the like.

Step S22: Determine, according to the aspect ratio in the updated shooting parameters, a preset edge region in the preview image in the terminal buffer, and occlude the preview image preset edge region.

Specifically, the aspect ratio of the preview image is different from the aspect ratio of the shooting mode, and the preview image needs to be partially occluded. The displayed preview image satisfies the aspect ratio of the shooting mode, and the occluded area is the edge region.

After receiving the mode switching instruction, first, the parameters of the shooting mode are further changed, such as resolution, aspect ratio, and the like. The aspect ratio of the preview image is not the same as the aspect ratio of the shooting mode, so it is not possible to directly display the preview image, so the preview image is partially occluded so that the displayed preview image aspect ratio satisfies the shooting mode. Aspect ratio.

Further, referring to FIG. 3, the step of determining, according to the aspect ratio in the updated shooting parameters, the preset edge region in the preview image in the terminal buffer according to step S22 includes:

Step S23, determining the geometric center of the preview image by the intersection of the diagonal lines, using the geometric center as the geometric center, and generating a geometric shape with the width of the preview image as the width and the length satisfying the shooting aspect ratio;

Specifically, by geometric law, the intersection of the two diagonal lines of the rectangle is the geometric center, the geometric center is located at the center of the geometric figure, and the main content of the photo is generally close to the center position, so when the preview image is occluded, the preview will be previewed. The geometric center of the image is the geometric center of the final displayed image, and since the width of the square graphic is the same as the width of the preview image, the width is constant, and the length can be derived from the width and aspect ratio to obtain the final display. The geometry, after drawing the width and height of the graph, and the geometric center of the preview image coincides with the geometric center of the geometry, so that the final displayed image position can be determined.

In step S24, the generated geometric figure is compared with the preview image, and the area where the preview image is not in the geometric figure is set as the preset edge area.

After the displayed image is obtained, the excess portion of the preview image relative to the final displayed geometry is set as the edge region.

When taking photos, people tend to focus on the main part, and the edge area is generally unimportant. Therefore, when occluding the preview image, try to block the edge area and preserve the content of the center as much as possible. . Through the geometric relationship, the intersection of the two diagonal lines of the rectangle is the geometric center, and in order to better preserve the content of the central part, the preview image and the geometric center of the final displayed image are set to a point, and then the data such as the aspect ratio can be used. Get the final displayed graphic. And set the extra part to the edge area. By running the geometric relationship, the preview image is finally displayed to the user's image closer to the center portion, thereby maximally displaying the content of the preview image near the center portion.

Further, in step S24, the generated geometric figure is compared with the preview image, and the step that the preview image is not in the geometric figure is set as the preset edge area, and then includes:

In step S25, by setting the brightness of the preset edge area to zero, the edge area is not displayed when displayed.

Specifically, by adjusting the brightness of the edge area to zero, the edge area is not displayed.

After the brightness of an area is turned to zero, the content of the area becomes black and cannot be displayed normally. By this method, the edge area of the preview image cannot be displayed, which has an occlusion effect and makes the portion of the preview image displayed. The aspect ratio is consistent with the aspect ratio of the shooting mode. At the same time, since the preview image in the cache is not reloaded, but only part of the image content is occluded to achieve the aspect ratio of the image to be captured, the reloading of the preview image is prevented, so that the calculation amount of the mobile terminal is increased, and The mobile terminal has a stuck phenomenon.

Further, when the step S30 receives the photographing instruction, the step of cutting the preset edge region in the preview image to obtain the target photo corresponding to the mode switching instruction includes:

In step S31, if the photographing instruction is received, the aspect ratio of the preview image is satisfied by clipping the preset edge region.

Specifically, when the user shoots, by pressing the shooting button (or sending a photographing instruction by other means), the photographing instruction is sent, and the mobile terminal receives the photographing instruction, so that after receiving the photographing instruction, the current current obtained through the camera is needed. The scene picture is captured, and the photo data stored in the cache is the current scene picture acquired by the camera. Therefore, the captured photo data is partially processed, and the current scene picture is completed, that is, the photographing instruction is completed.

After receiving the photographing instruction, since the zero-delay photo mode requires a very fast shooting speed, the real-time preview is stored in the cache for the preview image captured by the camera, and the preview image in the current time buffer is received when the shooting command is received. It is the picture that the user wants to take, and after trimming the edge area of the preview image, the picture that the user wants to take is obtained.

Further, after step S31, the step of trimming the preset edge region such that the aspect ratio of the preview image satisfies the aspect ratio of the target photo includes:

In step 32, the trimmed preview image is compressed to generate a target photo in a preset format and saved.

Specifically, the cropped photo is the target photo that the user wants to take. After the photo is taken, compression processing is also required, the photo is compressed into a dedicated image format, and the compressed photo is saved in the storage space. For subsequent user viewing or modification operations.

Since the setting of the preview is not set corresponding to the square mode, the image data in the buffer (this image data is the image data for previewing) is the size ratio of the non-square mode, and the user selects the square mode to take the photo, and the final result must be A square photo, so it is necessary to trim the image data obtained in the cache to change the aspect ratio. Because the portion of the photo that is cropped is the edge portion, cropping does not have a significant impact on the content and quality of the photo, and the reduction in aspect ratio can instead highlight the photo theme (because the subject matter in the photo is throughout the photo) The proportion in the increase has increased, so it will stand out).

Further, the step of compressing the trimmed preview image in step S32 to generate a target photo in a preset format and saving the method includes:

Step S33, detecting whether a processing request sent by a third-party application is received;

Specifically, after the photo is taken, according to different needs of the user, some photos may require a third-party application to perform post-shooting processing, so that the effect of the photo is perfect, so the photo is detected whether there is a processing request of the third-party application.

Step S331, if a processing request issued by the third-party application is detected, the target photo is sent to a third-party application for processing, and the fed-back photo is saved.

Specifically, when the photo is detected to a request that is optimized by the third-party application, the photo data is sent to the third-party application, so that the third-party application can complete the optimization of the photo.

At present, optimizing photos through third-party applications is a common way of photo optimization. Through third-party applications, the shortcomings of mobile terminals can be improved. For the optimization of photos, the third-party application is more powerful than the camera optimization program of the mobile terminal, so the third-party application is used to optimize the photo, which can complement the weakness of the mobile terminal for photo optimization, and There is no need to increase the user's use cost (the third-party application is often free or the usage cost is very low), so if the photo data after the photo is processed by a third-party application, the photo data is sent to the third-party application. Processing (for example, after the photo is taken, the user can select the character whitening function, and the third party application can whiten the characters in the photo). By detecting whether a processing request of a third-party application is received, the user can perform a better beautification of the photo effect.

Further, the step of detecting whether the processing request sent by the third-party application is received in step S33 comprises:

Step S332, if the processing request of the third-party application is not detected, the target photo file is saved locally according to the preset path.

Specifically, after the photo is compressed and the file in the preset image format is generated, the file is stored in a predetermined image storage path, and is saved in the form of a file, and the stored path is a preset path, so that the user can quickly Find the captured photo by path.

After the user takes a photo, the photo needs to be stored locally for subsequent viewing, editing, and the like. Since the photo is not generated in the preset format, it will not be modified too much, etc., so it needs to be stored in the storage. The storage can store data for a long time, but the reading speed is slower than the data stored in the cache. However, the data in the cache cannot be stored without restriction (because the cache needs to be powered under normal conditions, Storage space, such as a hard disk, can save data in case of power failure. Therefore, after the photo is taken, storing the photos in the storage space of the preset path can facilitate the user to view the photos and so on.

The present invention also provides a mobile terminal having a terminal photographing control method.

The mobile terminal based on the terminal photographing control method of the present invention comprises: a memory, a processor, and a square mode photographing program stored on the memory and operable on the processor, wherein the square mode photographing program is executed by the processor The terminal photographing control method steps as described above are implemented.

For the method that is implemented when the square mode photographing program running on the processor is executed, reference may be made to various embodiments of the terminal photographing control method of the present invention, and details are not described herein again.

Furthermore, embodiments of the present invention also provide a computer readable storage medium.

The square readable photographing program is stored on the computer readable storage medium of the present invention, and the square mode photographing program is executed by the processor to implement the steps of the terminal photographing control method as described above.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, item, or system. An element defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in a process, method, article, or system that includes the element, without further limitation.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, portions of the technical solution of the present invention that contribute substantially or to the prior art may be embodied in the form of a software product stored in a storage medium (such as a ROM/RAM as described above). , a disk, an optical disk, including a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, a mobile terminal, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims

A terminal photographing control method is characterized in that the terminal photographing control method comprises the following steps:

Detecting a mode switching instruction of a user input received by the terminal;

If the terminal receives the mode switching instruction, the preset image edge region of the preview image in the terminal buffer is occluded;

When receiving the photographing instruction, the preset edge area in the preview image is cropped to obtain the target photo corresponding to the mode switching instruction.
The terminal photographing control method according to claim 1, wherein the step of occluding the preset image edge region of the preview image stored in the terminal cache if the terminal receives the mode switching instruction comprises:

If the terminal receives the mode switching instruction, the shooting parameter of the terminal photographing mode is updated according to the mode switching instruction;

According to the aspect ratio in the updated shooting parameters, the preset edge area in the preview image in the terminal buffer is determined, and the preview image preset edge area is occluded.
The terminal photographing control method according to claim 2, wherein the determining the preset edge region in the preview image in the buffer of the terminal according to the aspect ratio in the updated shooting parameter comprises:

Determine the geometric center of the preview image by the intersection of the diagonal lines, and use the geometric center as the geometric center to generate a geometric shape with the width of the preview image as the width and the length satisfying the shooting aspect ratio;

The generated geometry is compared with the preview image, and the area in which the preview image is not in the geometry is set as the preset edge area.
The terminal photographing control method according to claim 3, wherein the comparing the generated geometric figure with the preview image, and the area where the preview image is not in the geometric figure is after the step of setting the preset edge area :

By setting the brightness of the preset edge area to zero, the edge area is not displayed when it is displayed.
The terminal photographing control method according to claim 1, wherein the step of cropping the preset edge region in the preview image to obtain the target photo corresponding to the mode switching instruction when the photographing instruction is received includes:

If the photographing instruction is received, the aspect ratio of the preview image is made to satisfy the aspect ratio of the target photograph by trimming the preset edge region.
The terminal photographing control method according to claim 5, wherein the step of cropping the preset edge region such that the aspect ratio of the preview image satisfies the aspect ratio of the target photo comprises:

Compress the cropped preview image to generate a target photo in a preset format and save it.
The terminal photographing control method according to claim 6, wherein the step of compressing the cropped preview image to generate a target photo in a preset format and saving the method comprises:

Detecting whether a processing request from a third-party application is received;

If a processing request from a third-party application is detected, the target photo is sent to a third-party application for processing and the returned photo is saved.
The terminal photographing control method according to claim 7, wherein the step of detecting whether a processing request issued by a third-party application is received comprises:

If the processing request of the third-party application is not detected, the target photo file is saved locally according to the preset path.
A mobile terminal, comprising: a memory, a processor, and a square mode photographing program stored on the memory and operable on the processor, wherein the square mode photographing program is The step of implementing the terminal photographing control method according to any one of claims 1 to 8 when the processor executes.
A computer readable storage medium, wherein the computer readable storage medium stores a square mode photographing program, and the square mode photographing program is executed by a processor to implement any one of claims 1 to 8. The steps of the terminal photographing control method.