CN111885305A

CN111885305A - Preview picture processing method and device, storage medium and electronic equipment

Info

Publication number: CN111885305A
Application number: CN202010738800.9A
Authority: CN
Inventors: 闫鹏飞
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2020-11-03
Anticipated expiration: 2040-07-28
Also published as: CN111885305B

Abstract

The disclosure provides a preview picture processing method, a preview picture processing device, a storage medium and electronic equipment, and relates to the technical field of image processing. The preview picture processing method comprises the following steps: responding to zooming operation of a target camera module, acquiring a current preview picture corresponding to the target camera module, and restarting the target camera module; when the target camera module is restarted, adjusting the current preview picture, providing a transition animation corresponding to the current preview picture and displaying the transition animation; and switching the transition animation to a preview picture corresponding to the zooming multiple of the zooming operation for displaying. The embodiment of the disclosure can realize a smooth zooming process, thereby improving the quality of the preview picture.

Description

Preview picture processing method and device, storage medium and electronic equipment

Technical Field

The present disclosure relates to the field of image processing technologies, and in particular, to a preview screen processing method, a preview screen processing apparatus, a computer-readable storage medium, and an electronic device.

Background

When the camera module is enlarged, if the preview picture with better image quality is used as the output data of the camera module, the camera module and the image processor frame must be restarted to output the output data with high image quality. However, in the process of restarting the camera module and the image processor frame, the problem of the zooming process being stuck due to the restarting operation can occur.

In order to avoid the jamming problem, a preview picture with poor image quality is generally used as output data of the camera module in the related art, so that the fluency of the preview magnification process is guaranteed. In the case of high magnification, the preview screen is enlarged in a simple geometric manner, so that the quality of the output preview screen is poor, and the fluency during the zoom operation is poor.

Disclosure of Invention

The present disclosure provides a preview screen processing method, a preview screen processing apparatus, a computer-readable storage medium, and an electronic device, thereby overcoming a problem of poor quality of a preview screen image at least to some extent.

According to an aspect of the present disclosure, there is provided a preview screen processing method including: responding to zooming operation of a target camera module, acquiring a current preview picture corresponding to the target camera module, and restarting the target camera module; when the target camera module is restarted, adjusting the current preview picture, providing a transition animation corresponding to the current preview picture and displaying the transition animation; and switching the transition animation to a preview picture corresponding to the zooming multiple of the zooming operation for displaying.

According to an aspect of the present disclosure, there is provided a preview screen processing apparatus including: the camera restarting module is used for responding to zooming operation of a target camera module, acquiring a current preview picture corresponding to the target camera module and restarting the target camera module; the animation providing module is used for adjusting the current preview picture when the target camera module is restarted, providing a transition animation corresponding to the current preview picture and displaying the transition animation; and the picture switching module is used for switching the transition animation to a preview picture corresponding to the zooming multiple of the zooming operation so as to display the transition animation.

According to an aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a preview screen processing method as in any one of the above.

According to an aspect of the present disclosure, there is provided an electronic device including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform any one of the preview screen processing methods described above via execution of the executable instructions.

In some embodiments of the present disclosure, in the preview screen processing method and apparatus, the computer-readable storage medium, and the electronic device, on one hand, when the target camera module is restarted in response to a zoom operation on the target camera module, a transition animation corresponding to the current preview screen is provided by performing an adjustment operation on the current preview screen of the target camera module, and then the preview screen corresponding to the zoom multiple of the zoom operation is displayed after the transition animation is played. By providing a transition animation in the process of restarting the target camera module, smooth transition can be realized between the current preview picture and the preview picture, and the fluency of zooming operation is improved. On the other hand, after the transitional animation playing is finished, the preview picture corresponding to the zooming multiple of the zooming operation can be used as the output data of the target camera module, the problem that the quality of the preview picture is poor due to the fact that the output data is obtained through simple geometric amplification is avoided, the quality of the preview picture output by the target camera module is improved, the quality of the preview picture output by the target camera module can be improved while the zooming smoothness is considered, and the stability and the reliability are improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty. In the drawings:

fig. 1 illustrates a schematic diagram of an application scenario to which a preview screen processing method of an embodiment of the present disclosure may be applied;

FIG. 2 illustrates a schematic structural diagram of an electronic device suitable for use in implementing embodiments of the present disclosure;

fig. 3 is a flowchart showing a process of acquiring a preview screen in the related art;

FIG. 4 is a flow chart illustrating a preview screen processing method in an embodiment of the present disclosure;

FIG. 5 shows a schematic diagram of zoom magnification in an embodiment of the present disclosure;

FIG. 6 is a flow chart illustrating a process of obtaining a preview screen in an embodiment of the present disclosure;

FIG. 7 illustrates a flow diagram for determining a transition animation in an embodiment of the disclosure;

fig. 8 shows a flowchart of outputting a preview screen in the embodiment of the present disclosure;

FIG. 9 is a system framework diagram for implementing a preview screen processing method in an embodiment of the present disclosure;

fig. 10 schematically shows a block diagram of a preview screen processing apparatus in an exemplary embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and the like. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the steps. For example, some steps may be decomposed, and some steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation. In addition, all of the following terms "first" and "second" are used for distinguishing purposes only and should not be construed as limiting the present disclosure.

Fig. 1 illustrates a schematic diagram of an application scenario to which a preview screen processing method or a preview screen processing apparatus according to an embodiment of the present disclosure may be applied.

The preview screen processing method can be applied to the image acquisition process, as shown in fig. 1, and particularly can be applied to the process of shooting the target object 102 by using the terminal 101. The terminal 101 may be various types of clients capable of being used for shooting, for example, various smartphones, tablet computers, desktop computers, vehicle-mounted devices, wearable devices, and the like, which are capable of capturing images or videos and displaying the images or videos. The target object 102 may be any type of object to be photographed in various scenes, such as a person, an animal, or a landscape, etc. Specifically, a camera or a shooting application on the terminal 101 may be used to capture an image of the target object to obtain the preview screen 103 before triggering a shooting instruction. The camera on the terminal may include a plurality of camera modules, which may include a tele camera module. When the zoom operation of the user is detected when the zoom camera module is detected to switch the zoom multiple, the camera module contained in the terminal can be restarted, and a transition animation can be added according to the current preview picture of the camera module, so that the transition from the current preview picture to the preview picture is performed based on the transition animation, and the preview picture after the zoom operation is performed on the zoom camera module is finally displayed.

It should be noted that the preview screen processing method provided by the embodiment of the present disclosure may be completely executed by the terminal. Accordingly, the preview screen processing apparatus may be provided in the terminal.

FIG. 2 shows a schematic diagram of an electronic device suitable for use in implementing exemplary embodiments of the present disclosure. It should be noted that the electronic device shown in fig. 2 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present disclosure.

The electronic device of the present disclosure includes at least a processor and a memory for storing one or more programs, which when executed by the processor, make the processor implement the preview screen processing method of the exemplary embodiments of the present disclosure.

Specifically, as shown in fig. 2, the electronic device 200 may include: a processor 210, an internal memory 221, an external memory interface 222, a Universal Serial Bus (USB) interface 230, a charging management module 240, a power management module 241, a battery 242, an antenna 1, an antenna 2, a mobile communication module 250, a wireless communication module 260, an audio module 270, a speaker 271, a microphone 272, a microphone 273, an earphone interface 274, a sensor module 280, a display screen 290, a camera module 291, an indicator 292, a motor 293, a key 294, and a Subscriber Identity Module (SIM) card interface 295, and the like. Among other things, the sensor module 280 may include a depth sensor 2801, a pressure sensor 2802, a gyroscope sensor 2803, a barometric pressure sensor 2804, a magnetic sensor 2805, an acceleration sensor 2806, a distance sensor 2807, a proximity light sensor 2808, a fingerprint sensor 2809, a temperature sensor 2810, a touch sensor 2811, an ambient light sensor 2812, and a bone conduction sensor 2813, among others.

It is to be understood that the illustrated structure of the embodiment of the present application does not specifically limit the electronic device 200. In other embodiments of the present application, the electronic device 200 may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 210 may include one or more processing units, such as: the Processor 210 may include an Application Processor (AP), a modem Processor, a Graphics Processor (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband Processor, and/or a Neural Network Processor (NPU), and the like. The different processing units may be separate devices or may be integrated into one or more processors. Additionally, a memory may be provided in processor 210 for storing instructions and data.

The USB interface 230 is an interface conforming to the USB standard specification, and may specifically be a MiniUSB interface, a microsusb interface, a USB type c interface, or the like. The USB interface 230 may be used to connect a charger to charge the electronic device 200, and may also be used to transmit data between the electronic device 200 and a peripheral device. And the earphone can also be used for connecting an earphone and playing audio through the earphone. The interface may also be used to connect other electronic devices, such as AR devices and the like.

The charge management module 240 is configured to receive a charging input from a charger. The charger may be a wireless charger or a wired charger. The power management module 241 is used for connecting the battery 242, the charging management module 240 and the processor 210. The power management module 241 receives the input of the battery 242 and/or the charging management module 240, and supplies power to the processor 210, the internal memory 221, the display screen 290, the camera module 291, the wireless communication module 260, and the like.

The wireless communication function of the electronic device 200 may be implemented by the antenna 1, the antenna 2, the mobile communication module 250, the wireless communication module 260, a modem processor, a baseband processor, and the like.

The mobile communication module 250 may provide a solution including 2G/3G/4G/5G wireless communication applied on the electronic device 200.

The Wireless Communication module 260 may provide a solution for Wireless Communication applied to the electronic device 200, including Wireless Local Area Networks (WLANs) (e.g., Wireless Fidelity (Wi-Fi) network), Bluetooth (BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like.

The electronic device 200 implements a display function through the GPU, the display screen 290, the application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display screen 290 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 210 may include one or more GPUs that execute program instructions to generate or alter display information.

The electronic device 200 may implement a shooting function through the ISP, the camera module 291, the video codec, the GPU, the display screen 290, the application processor, and the like. In some embodiments, the electronic device 200 may include 1 or N camera modules 291, where N is a positive integer greater than 1, and if the electronic device 200 includes N cameras, one of the N cameras is a main camera, and the others may be sub cameras, such as a telephoto camera.

Internal memory 221 may be used to store computer-executable program code, including instructions. The internal memory 221 may include a program storage area and a data storage area. The external memory interface 222 may be used to connect an external memory card, such as a Micro SD card, to extend the memory capability of the electronic device 200.

The electronic device 200 may implement an audio function through the audio module 270, the speaker 271, the receiver 272, the microphone 273, the headphone interface 274, the application processor, and the like. Such as music playing, recording, etc.

Audio module 270 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. Audio module 270 may also be used to encode and decode audio signals. In some embodiments, the audio module 270 may be disposed in the processor 210, or some functional modules of the audio module 270 may be disposed in the processor 210.

The speaker 271 is used for converting the audio electric signal into a sound signal. The electronic apparatus 200 can listen to music through the speaker 271 or listen to a handsfree phone call. The receiver 272, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. When the electronic device 200 receives a call or voice information, it can receive the voice by placing the receiver 272 close to the ear of the person. The microphone 273, also known as a "microphone," is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can input a voice signal to the microphone 273 by sounding a voice signal near the microphone 273 through the mouth. The electronic device 200 may be provided with at least one microphone 273. The earphone interface 274 is used to connect wired earphones.

The depth sensor 2801 is used to acquire depth information of a scene with respect to a sensor included in the electronic device 200. The pressure sensor 2802 is used to sense a pressure signal and convert the pressure signal into an electrical signal. The gyro sensor 2803 may be used to determine a motion pose of the electronic device 200. The air pressure sensor 2804 is used to measure air pressure. The magnetic sensor 2805 includes a hall sensor. The electronic device 200 may detect the opening and closing of the flip holster using the magnetic sensor 2805. The acceleration sensor 2806 can detect the magnitude of acceleration of the electronic device 200 in various directions (typically three axes). The distance sensor 2807 is used to measure a distance. The proximity light sensor 2808 may include, for example, a Light Emitting Diode (LED) and a light detector, such as a photodiode. The fingerprint sensor 2809 is used to collect a fingerprint. The temperature sensor 2810 detects temperature. The touch sensor 2811 may pass the detected touch operation to an application processor to determine a touch event type. Visual output related to the touch operation may be provided through the display screen 290. The ambient light sensor 2812 is used to sense ambient light brightness. Bone conduction sensor 2813 may acquire a vibration signal.

The keys 294 include a power-on key, a volume key, and the like. The keys 294 may be mechanical keys. Or may be touch keys. The motor 293 may generate a vibration indication. The motor 293 may be used for both electrical vibration prompting and touch vibration feedback. Indicator 292 may be an indicator light that may be used to indicate a state of charge, a change in charge, or may be used to indicate a message, missed call, notification, etc. The SIM card interface 295 is used to connect a SIM card. The electronic device 200 interacts with the network through the SIM card to implement functions such as communication and data communication.

The present application also provides a computer-readable storage medium, which may be contained in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device.

A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable storage medium may transmit, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.

The computer-readable storage medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method as described in the embodiments below.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units described in the embodiments of the present disclosure may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.

Fig. 3 schematically shows a flowchart of acquiring a preview screen in the related art, and referring to fig. 3, the method mainly includes the following steps: in step S310, the photographing application adjusts the tele magnification. In step S320, the camera software framework restarts the tele camera module. In step S330, the telephoto camera module outputs a full-size preview screen. In step S340, the camera software framework is cropped according to the zoom multiple full-size preview screen requested by the photographing application. In step S350, the trimmed preview screen is output to the preview, and a final preview screen is obtained.

In order to solve the problem of poor quality of a preview picture in the technical solution described in fig. 3, an embodiment of the present disclosure provides a preview picture processing method. Fig. 4 schematically shows a flowchart of a preview screen processing method according to an exemplary embodiment of the present disclosure, which may be applied to, for example, an image capturing process of a captured image, to avoid a problem that a preview screen is stuck or not smooth when a zoom multiple of a telephoto camera is switched, and to improve quality of the captured image. Referring to fig. 4, the preview screen processing method may include steps S410 to S430, with a terminal as an execution subject, described in detail as follows:

in step S410, in response to a zoom operation on a target camera module, a current preview picture corresponding to the target camera module is obtained, and the target camera module is restarted.

In the embodiment of the present disclosure, the camera modules included in the terminal may be multiple, for example, the camera modules may include a main camera module and a telephoto camera module, and in addition, the camera modules may further include one or more of a macro camera module and an ultra-wide angle camera module, where the camera modules may be specifically set according to requirements of the terminal, such as shooting requirements and hardware. In the embodiment of the present disclosure, the camera module including the main camera module and the telephoto camera module is taken as an example for explanation. The main camera module can be a camera of any type and any pixel. For example, the main camera module may be 6400 ten thousand pixels or one hundred million pixels of cameras. The long-focus camera module is used for assisting the main camera to shoot so as to shoot a far object, and shooting quality and shooting effect are improved. The target camera module can be a camera module to be adjusted, and can be determined according to actual requirements. In the embodiment of the present disclosure, a target camera module is taken as an example of a long-focus camera module for explanation.

The terminal may have installed thereon a photographing application for performing photographing and processing a photographing result. If the user is detected to start the shooting application program (for example, the user clicks a control on the smart phone to trigger the shooting application program or triggers the shooting application program through a voice instruction, a gesture instruction and the like), a camera module of the terminal can be called to collect an object to be shot so as to acquire a picture to be shot. After the shooting application program is started and before the shooting operation of the user is detected, the camera of the terminal is in a preview state, and at the moment, the image of the object to be shot collected by the terminal can be displayed through a preview interface of the camera to serve as a current preview picture.

The zoom operation may be an operation of adjusting a zoom multiple of the target camera module by a user, and may be performed in response to a click operation or other type of triggering operation of the user on a zoom function control on the photographing interface after the photographing application is started. The zoom multiple is the long focus multiple of the target camera module. For example, the user clicks the zoom function control to switch the zoom magnification of the telephoto camera module from 3.3 times to 10 times.

In the embodiment of the present disclosure, no matter how many zoom multiples of the telephoto camera module are, a preview picture with high resolution needs to be output. That is, the displayed preview screens (the final preview screen and the current preview screen) are all full-size preview screens. The full-size preview picture refers to a preview picture with a maximum resolution corresponding to a zoom multiple, so as to avoid the situation that a partial resolution (for example, half of the maximum resolution) is used due to parameter requirements such as loading speed or fluency in the related art, avoid compressing or otherwise processing the resolution, and improve the quality and resolution of the preview picture by setting the full-size preview picture. For example, when the zoom factor is 5 times, the resolution of the preview screen is 5 times the maximum resolution corresponding to zooming. Referring to fig. 5, when the zoom factor of the telephoto camera module is 3.3 times to 60 times, the preview image of the telephoto camera module outputs a preview image of a full-scale resolution corresponding to each zoom factor, so as to improve the quality of the preview image.

Based on the internal structure of the lens module, the zoom multiple of the long-focus camera module is switched, and the long-focus camera module and the data stream corresponding to the frame of the long-focus camera module are required to be restarted to obtain a full-size preview picture. Therefore, when the zoom operation of the tele camera module is received, the tele camera module can be restarted, and a current preview picture output by the tele camera module can be acquired simultaneously. The current preview image refers to a preview image including an object to be photographed before the zoom multiple of the telephoto camera module is not adjusted (i.e., not zoomed).

In step S420, when the target camera module is restarted, an adjustment operation is performed on the current preview screen, and a transition animation corresponding to the current preview screen is provided and displayed.

In the embodiment of the disclosure, in order to solve the problem that the preview image display is stuck in the restarting process of the long-focus camera module, when the zooming operation of the target camera module is received and the target camera module is in the restarting state, an animation module is added in the restarting process of the target camera module based on the current preview image, so that a transition animation is added in the restarting process of the target camera module through the animation module, and the transition animation is displayed in the restarting process of the target camera module. The transition animation can be used for providing a transition function when the zoom multiple of the long-focus camera module is changed, so that smooth transition between preview pictures is realized.

The type of the transition animation may be a shot-cut animation or a gaussian blur animation, and the specific selection of which type of transition animation is determined according to actual requirements, for example, may be determined according to a shooting scene or a shooting type, and the like, or may be determined according to requirements of a display effect or fluency, and the like. When the lens-pushing animation pushes the picture to the object to be shot, the view-finding range is from large to small, and the main body part to be expressed is gradually enlarged and filled with the picture as the secondary part is continuously moved out of the picture, so that the lens-pushing animation has the functions of highlighting the main body character and highlighting the key image. The gaussian blur animation is an animation represented by a blurred image obtained by compressing an original image and then continuing the blurring process. In the embodiment of the present disclosure, transition animation is taken as push-shot animation for example.

Fig. 6 schematically shows a flowchart of acquiring a preview screen, and referring to fig. 6, mainly includes the following steps:

in step S610, the shooting application adjusts the zoom magnification.

In step S620, an animation module is added for providing a transition animation.

In step S630, the camera software framework restarts the tele camera module.

In step S640, the telephoto camera module outputs a full-size preview screen.

In step S650, the camera software framework is cropped according to the zoom factor full-size preview screen requested by the photographing application.

In step S660, the trimmed preview screen is output to the preview, and a final preview screen is obtained.

In the embodiment of the present disclosure, the tele camera module may be restarted when the zoom factor is adjusted, and the transition animation may be provided while the tele camera module is restarted, so that step S620 and step S630 may be executed simultaneously. Compared with the related art, in the technical scheme in fig. 6, the transition animation is added in the process of restarting the telephoto camera, so that the zooming operation can be performed more smoothly, and the zooming effect is improved.

In the embodiment of the present disclosure, when a transition animation is added, the current preview picture may be adjusted according to a zoom multiple corresponding to the zoom operation, so as to obtain the transition animation. Wherein the zoom factor can be used to indicate the degree of adjustment for the current preview screen. That is, whether to stop the adjustment operation for the current preview screen may be determined based on the zoom magnification, so that the transition animation is generated in response to the adjustment operation. The adjustment operation here may include an enlargement operation and a cropping operation for the current preview screen.

Fig. 7 schematically shows a schematic diagram of determining a transition animation, and referring to fig. 7, mainly includes step S710 and step S720, where:

in step S710, a zoom-in operation is performed on the current preview screen to obtain a magnified preview screen until the magnification of the magnified preview screen is greater than the zoom magnification.

In this step, since the magnification of the current preview image is smaller than the zoom magnification, at least one magnification operation may be performed on the current preview image to obtain a magnified preview image. In this regard, the magnification refers to the combined magnification corresponding to at least one amplification operation. The comprehensive magnification is the magnification of the preview picture obtained by the last magnification operation relative to the current preview picture. For example, if the first magnification is 2 times and the second magnification is 2 times, the overall magnification is 4 times.

In the embodiment of the present disclosure, in order to avoid an unsmooth or abrupt state such as zooming out and zooming out again, the current preview image may be continuously zoomed in at least once according to the preset zoom factor, so as to obtain the zoomed-in preview image. The preset amplification factors referred by each amplification operation can be the same or different, and are specifically set according to actual requirements. In order to ensure the continuity of the transition animation, the preset magnification may be set to a small value, for example, 2 times or 4 times, so as to avoid that the integrated magnification quickly reaches the zoom magnification to stop the zooming operation, but the target camera module has not yet completed restarting and is in a discontinuous or discontinuous state. It should be noted that each time the zoom-in operation is performed, an enlarged preview screen can be obtained, where the enlarged preview screen refers to data enlarged with respect to the current preview screen.

In step S720, a cropping operation is performed on the enlarged preview screen to obtain the transition animation.

In this step, after the magnified preview image is obtained by each magnification operation, since only the preview image in the center can be seen, the magnified preview image can be cut to make the preview image fit the screen of the terminal. Specifically, the cropping operation may be performed for the enlarged preview screen obtained by each enlargement operation in accordance with the preview resolution. In other words, a preview screen exceeding the preview resolution of the enlarged preview screen is cut out so as to remove a portion other than the preview resolution, and the remaining cut-out screen not exceeding the preview resolution is played back as a transition animation. The preview resolution refers to the resolution of the transition animation determined when the tele multiples are switched, and the preview resolution may be the resolution of the tele camera module or the resolution of the main camera module, and is not particularly limited here.

For example, the preview resolution may be 1920 × 1080, and when the magnification of the enlarged preview screen is 3 times, only a part of the preview screen having the resolution of 1920 × 1080 centered on the center of the current preview screen can be viewed, so that the entire enlarged preview screen can be cut to obtain a part of the enlarged preview screen having the resolution of 1920 × 1080. If the zooming-in operation needs to be performed again, the part of the zoomed-in preview picture can be taken as a basis for performing the zooming-in operation again, and the operation is repeatedly performed until the zooming-in operation does not need to be performed again (namely, until the zooming magnification is larger than the zooming magnification). If the zooming-in operation is not needed to be carried out again, the animation is directly used as the transition animation. Thus, the resolution of the transition animation is the same as the preview resolution.

It should be noted that, in the embodiment of the present disclosure, the enlarging operation and the cropping operation are in one-to-one correspondence, that is, one enlarging operation is performed, and one cropping operation needs to be performed, so the times of the enlarging operation and the cropping operation are the same.

In the embodiment of the disclosure, by performing the zoom-in operation on the current preview picture according to the preset magnification factor and performing the clipping operation on the zoomed-in preview picture according to the preview resolution, a part of the preview picture remaining after clipping can be used as the transition animation. Because the amplifying operation and the cutting operation can be executed once or for a plurality of times, when the amplifying operation and the cutting operation are executed for a plurality of times, the transitional animations obtained by the amplifying operation and the cutting operation are different, and the transitional animations are displayed in sequence according to the generated time sequence.

Based on the above, when the type of the transition animation is the push-shot animation, the transition animation effects that the view range is from large to small, and the main body part (the object to be shot) to be expressed is gradually enlarged and filled with the picture as the secondary part is continuously moved out of the picture can be realized while the picture is pushed to the object to be shot in the process of restarting the target camera module.

By adding the transition animation in the process of restarting the target camera module, the problem that a preview picture is interrupted or is not suitable in the restarting process can be avoided, the problem of blockage is avoided, and the playing fluency and the picture quality are improved.

Fig. 8 schematically shows a flowchart of outputting a preview screen, and referring to fig. 8, mainly includes the following steps:

in step S810, the current preview screen is saved.

In step S820, the zoom factor switched by the user is saved.

In step S830, it is determined whether the magnification of the current preview screen is smaller than the zoom magnification set by the user. If yes, go to step S840; if not, go to step S850.

In step S840, the enlargement operation and the cropping operation are performed on the saved current preview screen. After step S840 is performed, step S830 is continued.

In step S850, when the magnification of the current preview screen is larger than the zoom magnification, the preview screen is output.

In the technical solution in fig. 8, in a case that the magnification of the current preview screen is smaller than the zoom magnification, the zoom-in operation and the cropping operation may be performed on the current preview screen, and the zoom-in operation and the cropping operation may be stopped when the magnification of the preview screen is larger than the zoom magnification to output the preview screen. By the technical scheme in fig. 8, the transition animation can be accurately generated, and applicability and accuracy are improved.

Continuing to refer to fig. 4, in step S430, the transition animation is switched to a preview screen corresponding to the zoom multiple of the zoom operation for presentation.

In the embodiment of the disclosure, after the playing of the transition animation is finished, the transition animation may be switched to the preview picture corresponding to the zoom multiple of the zoom operation, so as to display the preview picture after the target camera module zooms on the preview interface of the terminal. For example, if the initial zoom multiple is 5 times, the current preview image is an image corresponding to the 5 times zoom. And if the zoom multiple after the user switches is 10 times, the preview picture is a picture corresponding to the zoom of 10 times.

Specifically, if response data corresponding to a zoom operation is detected, playing of a transition animation is stopped, and the transition animation is switched to the preview picture corresponding to the zoom multiple of the zoom operation to display the preview picture. The response data may be data or a signal corresponding to a zoom operation, for example, a value of zoom multiple after the zoom is detected. When the response data is received, no matter the playing degree of the transition animation is reached, the playing of the transition animation can be immediately stopped, and a preview picture corresponding to the zoom multiple after zooming is displayed on a preview interface, so that the display effect of smoothly switching the preview picture along with the zoom multiple is realized.

According to the technical scheme in the embodiment of the disclosure, the quality of the previewed picture after zooming is improved, and the fluency of the zooming process can also be improved.

A system framework diagram for implementing the preview screen processing method is schematically illustrated in fig. 9, and referring to fig. 9, the system framework 900 may include: a lens module 901, a camera software framework 902, and a preview animation 903, wherein:

the lens module 901 may include a main camera module 9011 and a telephoto camera module 9012, and may further include other types of camera modules, where each camera module may specifically include a photosensitive sensor, a lens, a base, and the like. The lens is used for image acquisition, and the sensor is used for analog-to-digital conversion to convert an analog signal into a digital signal. The base is used for fixing the lens.

And the camera software framework 902 is used for realizing the control and switching of the lens group module and data transmission. For example, which camera module is turned on and which is turned off is controlled; and can control the telephoto camera module to be restarted in response to the zoom operation, and the like.

The preview animation 903 refers to a transition animation displayed on a preview interface in the shooting process, and is used for displaying in the restarting process of the telephoto camera module, so as to avoid the problem of jamming in the preview. After the preview animation playing is finished, a preview picture after zooming is displayed on a preview interface.

According to the technical scheme in the embodiment of the disclosure, the preview image quality and the comprehensiveness can be improved by setting the preview image of the telephoto camera module to be full-size output. Transition animations are added in the restarting process of the long-focus camera module, and the phenomenon of blocking is avoided. After the transition animation is played, the output data is switched from the transition animation to the preview picture corresponding to the zoom multiple, smooth picture transition can be achieved, the effect of seamless switching of pictures is achieved, and smoothness and display effect are improved. In addition, because the current preview picture before zooming is subjected to the zooming operation and the cutting operation, the transition animation of a shot pushing type is introduced, so that the transition animation is more real, and the immersion feeling can be increased.

In addition, the transition animation scheme in the embodiment of the disclosure can also be used in other processes which are time-consuming or have a stuck problem, so as to improve the image quality and increase the fluency of image display.

It should be noted that although the various steps of the methods of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that these steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.

Fig. 10 schematically shows a block diagram of a preview screen processing apparatus of an exemplary embodiment of the present disclosure. Referring to fig. 10, a preview screen processing apparatus 1000 according to an exemplary embodiment of the present disclosure may include the following modules:

a camera restart module 1001, configured to obtain a current preview picture corresponding to a target camera module in response to a zoom operation on the target camera module, and restart the target camera module;

the animation providing module 1002 is configured to, when the target camera module is restarted, perform adjustment operation on the current preview picture, provide a transition animation corresponding to the current preview picture, and display the transition animation;

and a picture switching module 1003, configured to switch the transition animation to a preview picture corresponding to the zoom multiple of the zoom operation, so as to display the transition animation.

In an exemplary embodiment of the present disclosure, the animation providing module includes: and the image adjusting module is used for adjusting the current preview image according to the zooming multiple corresponding to the zooming operation to obtain a transition animation corresponding to the current preview image, and displaying the transition animation when the target camera module is restarted.

In an exemplary embodiment of the present disclosure, the picture adjustment module includes: the image amplification module is used for carrying out amplification operation on the current preview image to obtain an amplified preview image until the amplification factor of the amplified preview image is greater than the zoom factor; and the picture cutting module is used for cutting the amplified preview picture to obtain the transition animation.

In an exemplary embodiment of the present disclosure, a screen enlargement module includes: and the amplification control module is used for carrying out at least one amplification operation on the current preview picture according to a preset amplification factor to obtain the amplification preview picture corresponding to each amplification operation.

In an exemplary embodiment of the present disclosure, the screen cropping module includes: and the cutting control module is used for performing cutting operation on the enlarged preview picture exceeding the preview resolution in the enlarged preview picture so as to take the cut residual picture as the transition animation.

In an exemplary embodiment of the present disclosure, the screen switching module is configured to: and if the response data corresponding to the zooming operation is detected, stopping playing the transition animation, and switching the transition animation to the preview picture corresponding to the zooming multiple of the zooming operation so as to display the preview picture.

In an exemplary embodiment of the present disclosure, the transition animation is a pushshot animation or a gaussian blur animation.

Since each functional module of the preview screen processing apparatus according to the embodiment of the present disclosure is the same as that in the embodiment of the preview screen processing method, it is not described herein again.

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

Furthermore, the above-described figures are merely schematic illustrations of processes included in methods according to exemplary embodiments of the present disclosure, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.

It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the terms of the appended claims.

Claims

1. A preview screen processing method, comprising:

responding to zooming operation of a target camera module, acquiring a current preview picture corresponding to the target camera module, and restarting the target camera module;

when the target camera module is restarted, adjusting the current preview picture, providing a transition animation corresponding to the current preview picture and displaying the transition animation;

and switching the transition animation to a preview picture corresponding to the zooming multiple of the zooming operation for displaying.

2. The method for processing the preview screen according to claim 1, wherein the adjusting the current preview screen to provide and display a transition animation corresponding to the current preview screen comprises:

and adjusting the current preview picture according to the zoom multiple corresponding to the zoom operation to obtain a transition animation corresponding to the current preview picture, and displaying the transition animation when the target camera module is restarted.

3. The method for processing the preview screen according to claim 2, wherein the adjusting the current preview screen according to the zoom multiple corresponding to the zoom operation to obtain the transition animation corresponding to the current preview screen comprises:

carrying out amplification operation on the current preview picture to obtain an amplified preview picture until the amplification factor of the amplified preview picture is greater than the zoom factor;

and performing cutting operation on the amplified preview picture to obtain the transition animation.

4. The method for processing the preview screen according to claim 3, wherein said enlarging the current preview screen to obtain an enlarged preview screen comprises:

and carrying out at least one amplification operation on the current preview picture according to a preset amplification factor to obtain the amplification preview picture corresponding to each amplification operation.

5. The method according to claim 3 or 4, wherein said performing a cropping operation on the enlarged preview screen to obtain the transition animation comprises:

and performing cutting operation on the enlarged preview picture exceeding the preview resolution in the enlarged preview picture to take the cut residual picture as the transition animation.

6. The preview screen processing method according to claim 1, wherein said switching the transition animation to a preview screen corresponding to a zoom multiple of the zoom operation for presentation comprises:

and if the response data corresponding to the zooming operation is detected, stopping playing the transition animation, and switching the transition animation to the preview picture corresponding to the zooming multiple of the zooming operation so as to display the preview picture.

7. The preview screen processing method according to claim 1 or 6, wherein the transition animation is a push shot animation or a gaussian blur animation.

8. A preview screen processing apparatus comprising:

the camera restarting module is used for responding to zooming operation of a target camera module, acquiring a current preview picture corresponding to the target camera module and restarting the target camera module;

the animation providing module is used for adjusting the current preview picture when the target camera module is restarted, providing a transition animation corresponding to the current preview picture and displaying the transition animation;

and the picture switching module is used for switching the transition animation to a preview picture corresponding to the zooming multiple of the zooming operation so as to display the transition animation.

9. A computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the preview screen processing method of any of claims 1-7.

10. An electronic device, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the preview screen processing method of any of claims 1-7 via execution of the executable instructions.