WO2020215720A1 - 拍摄方法、存储介质及电子设备 - Google Patents

拍摄方法、存储介质及电子设备 Download PDF

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Publication number
WO2020215720A1
WO2020215720A1 PCT/CN2019/120990 CN2019120990W WO2020215720A1 WO 2020215720 A1 WO2020215720 A1 WO 2020215720A1 CN 2019120990 W CN2019120990 W CN 2019120990W WO 2020215720 A1 WO2020215720 A1 WO 2020215720A1
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Prior art keywords
preview image
frame
target area
definition
preview
Prior art date
Application number
PCT/CN2019/120990
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English (en)
French (fr)
Inventor
史豪君
Original Assignee
惠州Tcl移动通信有限公司
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Publication of WO2020215720A1 publication Critical patent/WO2020215720A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/61Control of cameras or camera modules based on recognised objects
    • H04N23/611Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/62Control of parameters via user interfaces
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/63Control of cameras or camera modules by using electronic viewfinders
    • H04N23/631Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters
    • H04N23/632Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters for displaying or modifying preview images prior to image capturing, e.g. variety of image resolutions or capturing parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/67Focus control based on electronic image sensor signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/67Focus control based on electronic image sensor signals
    • H04N23/675Focus control based on electronic image sensor signals comprising setting of focusing regions

Definitions

  • This application relates to the field of communication technology, and in particular to a shooting method, storage medium and electronic equipment.
  • the camera has become the standard configuration of most terminal equipment, providing users with camera functions, bringing great fun and convenience to people’s lives and work, as people’s requirements for the quality of captured images are increasing.
  • the embodiments of the present application provide a shooting method, a storage medium, and an electronic device, which can solve the problem of image blur caused by jitter and improve the quality of the image.
  • an embodiment of the present application provides a shooting method, including:
  • the method further includes:
  • the obtaining the definition of the multi-frame preview image includes:
  • the determining the target area of each frame of the preview image in the multiple preview images includes:
  • the touched area is taken as the target area.
  • the determining the target area of each frame of the preview image in the multiple preview images further includes:
  • the area where the face information is located is taken as the target area.
  • the determining the target area of each frame of the preview image in the multiple preview images further includes:
  • the central area of the multi-frame preview image is taken as the target area.
  • the obtaining the definition of the target area of each frame of the preview image includes:
  • an embodiment of the present application provides a storage medium on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:
  • the method further includes:
  • the obtaining the definition of the multi-frame preview image includes:
  • the determining the target area of each frame of the preview image in the multiple preview images includes:
  • the touched area is taken as the target area.
  • the determining the target area of each frame of the preview image in the multiple preview images further includes:
  • the area where the face information is located is taken as the target area.
  • the determining the target area of each frame of the preview image in the multiple preview images further includes:
  • the central area of the multi-frame preview image is taken as the target area.
  • an embodiment of the present application provides an electronic device including a memory, a processor, and a computer program stored on the memory and capable of running on the processor, and the processor executes the following steps when the program is executed:
  • the method further includes:
  • the obtaining the definition of the multi-frame preview image includes:
  • the determining the target area of each frame of the preview image in the multiple preview images includes:
  • the touched area is taken as the target area.
  • the determining the target area of each frame of the preview image in the multiple preview images further includes:
  • the area where the face information is located is taken as the target area.
  • the determining the target area of each frame of the preview image in the multiple preview images further includes:
  • the central area of the multi-frame preview image is taken as the target area.
  • the acquiring the definition of the target area of each frame of the preview image includes:
  • an electronic device when it receives a camera start instruction, it collects a multi-frame preview image; obtains the definition of the multi-frame preview image; marks the multi-frame preview image to establish the definition and the Correspondence between labels; when the electronic device receives a shooting instruction, find the corresponding label with the highest definition according to the correspondence relationship; select the corresponding preview image according to the corresponding label, and use the preview image as the target image.
  • This solution can select a preview image with the highest definition from multiple frames of preview images as the target image, thereby avoiding image blurring caused by jitter and improving image quality.
  • FIG. 1 is a schematic flowchart of a shooting method provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of another process of a shooting method provided by an embodiment of the present application.
  • Fig. 3 is a schematic structural diagram of a photographing device provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of another structure of a photographing device provided by an embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another structure of an electronic device provided by an embodiment of the present application.
  • the embodiments of the present application provide a photographing method, device, storage medium, and electronic equipment.
  • the execution subject of the photographing method may be the photographing device provided in the embodiment of the present application, and the photographing device may be implemented in hardware or software.
  • the photographing device may be integrated in an electronic device, for example, in an electronic device such as a smart phone or a tablet computer.
  • FIG. 1 is a schematic flowchart of a shooting method provided by an embodiment of the present application.
  • the specific flow of the shooting method may be as follows:
  • the electronic device receives a camera start instruction, collect multiple frames of preview images.
  • the camera start instruction can be sent in a variety of ways.
  • a physical button or a virtual button can be set in the electronic device, and when the user needs to turn on the camera, the physical button or virtual button can be triggered to send a camera start instruction.
  • the camera can also be turned on by tapping the electronic device.
  • the tap position and the number of taps can be set in the electronic device in advance, and the user can send the camera by tapping the preset number of taps at the preset tap position of the electronic device shell. Turn on the command.
  • an image buffer queue with a preset number of frames may be set in the electronic device, and the electronic device may collect multiple frames of preview images through a camera, and add the collected multiple frames of preview images to the image buffer queue.
  • the preset number of frames can be set according to actual conditions. For example, 6, 8, 10, etc.
  • the length of the image cache queue needs to be carefully considered. If the queue is too long, it will cause excessive memory consumption; if the queue is too short, the effect of filtering jittery images will not be achieved.
  • the appropriate length of the image buffer queue is just the number of frames that can be buffered from the time the user sees the frame of the satisfactory image to the time the button is clicked to shoot. In general, the preset number of frames in the image buffer queue can be 6.
  • the capacity of the preview image may be obtained in advance.
  • the format of the preview image collected by the camera is NV21, and the capacity of the preview image at this time is 1.5 times the width of the image multiplied by the height.
  • the size of the preview image can be set by the user.
  • corresponding memory may be allocated to the image cache queue according to the preset number of frames of the image cache queue and the capacity of the preview image.
  • a target area can be determined in each frame of the preview image, and the definition of the target area of each frame of the preview image can be calculated. That is, after the step "after acquiring the multi-frame preview image" and before the step "obtaining the definition of the multi-frame preview image", it may further include:
  • the step of "obtaining the definition of the multiple frames of preview images” may include:
  • the target area may be a specific area of the image capturing interface, or may be an area designated by the user.
  • the definition of the target area can be obtained through the image definition evaluation function. Specifically, the definition of the target area can be obtained according to the size of the target area and the gray value of each pixel in the target area.
  • the multiple frames of preview images in the image buffer queue may be labeled according to the generation time sequence of the preview images. For example, there are 6 frames of preview images in the image buffer queue. At this time, the 6 frames of preview images can be labeled according to the generation time of the preview image from the earliest to the latest. The first frame of preview image is labeled "1", The preview image of the second frame is labeled "2"...The preview image of the sixth frame is labeled "6". It is understandable that the 6 frames of preview images can also be labeled according to the sequence of the generation time of the preview image from the latest generation to the earliest generation.
  • the multi-frame preview images are labeled in order from high to bottom, and the multi-frame preview images are labeled in order from large to small.
  • mapping relationship table can be generated by establishing a correspondence relationship between the label and the definition, and the mapping relationship table is stored in the electronic device. For example, as shown in the following table:
  • the shooting instruction can be sent in a variety of ways.
  • a physical button or virtual button can be set in the electronic device, and when the user needs to take a shot, the physical button or virtual button can be triggered to send a shooting instruction.
  • the electronic device when it receives the shooting instruction, it can look up the label corresponding to the highest definition in the relationship mapping table according to the corresponding relationship.
  • the electronic device when it receives the shooting instruction, it can determine whether the number of frames of the preview image in the current image buffer queue has reached the preset number of frames, and if the result of the determination is yes, it will search for the highest definition corresponding to the corresponding relationship. Label; if the judgment result is no, continue to collect preview images until the number of preview images in the image buffer queue reaches the preset number. In this way, it is possible to select from more candidate preview images to obtain relatively clear images and meet the user's needs for clear images.
  • the preview image corresponding to the label can be selected in the image cache queue, and the preview image can be used as the target image, and the preview image can be encoded and compressed according to the shooting instruction to form a certain image format, such as United Image Expert Group (Joint Photographic Experts Group (JPEG) format, as the target image output, displayed on the display screen of the electronic device.
  • JPEG Joint Photographic Experts Group
  • the relationship mapping table and the image cache queue stored in the electronic device can be deleted.
  • the electronic device when it receives a camera start instruction, it collects multiple frames of preview images; obtains the definition of the multiple frames of preview images; labels the multiple frames of preview images to establish the definition and the label
  • the electronic device receives a shooting instruction, find the corresponding label with the highest definition according to the corresponding relationship; select the corresponding preview image according to the corresponding label, and use the preview image as the target image .
  • This solution can select the preview image with the highest definition from the multiple frames of preview images as the target image, thereby avoiding image blurring caused by jitter and improving image quality.
  • the specific process of the shooting method of this embodiment may be as follows:
  • the camera start instruction can be sent in a variety of ways.
  • a physical button or a virtual button can be set in the electronic device, and when the user needs to turn on the camera, the physical button or virtual button can be triggered to send a camera start instruction.
  • the camera can also be turned on by tapping the electronic device.
  • the tap position and the number of taps can be set in the electronic device in advance, and the user can send the camera by tapping the preset number of taps at the preset tap position of the electronic device shell. Turn on the command.
  • the capacity of the preview image may be obtained in advance.
  • the format of the preview image collected by the camera is NV21, and the capacity of the preview image at this time is 1.5 times the width of the image multiplied by the height.
  • the size of the preview image can be set by the user.
  • corresponding memory may be allocated to the image cache queue according to the preset number of frames of the image cache queue and the capacity of the preview image.
  • an image buffer queue with a preset number of frames may be set in the electronic device, and the electronic device may collect multiple frames of preview images through a camera, and add the collected multiple frames of preview images to the image buffer queue.
  • the preset number of frames can be set according to actual conditions. For example, 6, 8, 10, etc.
  • the length of the image cache queue needs to be carefully considered. If the queue is too long, it will cause excessive memory consumption; if the queue is too short, it may not have the effect of filtering dithered images.
  • the appropriate length of the image buffer queue is just the number of frames that can be buffered from the time the user sees the frame of the satisfactory image to the time the button is clicked to shoot.
  • the preset number of frames of the image buffer queue can be set to 6.
  • step 203 Detect whether there is a touch-to-focus operation during the acquisition of the multi-frame preview image; if it does, execute step 203; if it does not exist, execute step 204.
  • the target area may be a specific area of the image capturing interface, or may be an area designated by the user. It is understandable that the user-specified selection has the highest priority. That is, when a preview image is being collected, if there is a touch to focus operation, the touched area can be directly used as the target area.
  • face recognition technology when it is detected that there is no touch operation to collect the preview image, face recognition technology may be used to identify the face information in each preview image; and the area where the face information is located is used as the target area.
  • the user may not perform a touch-to-focus operation when shooting an image, and there is no face information in the captured image. For example, shooting landscape images. It is understandable that when the image is taken, if the user does not touch to focus, the camera will perform an auto focus operation.
  • the focus area of the auto focus operation is generally the center area of the preview image.
  • the definition of the target area can be obtained through an image definition evaluation function, and specifically the definition of the target area can be obtained according to the size of the target area and the gray value of each pixel in the target area.
  • the multiple frames of preview images in the image buffer queue may be labeled according to the generation time sequence of the preview images. For example, there are 6 frames of preview images in the image buffer queue. At this time, the 6 frames of preview images can be labeled according to the generation time of the preview image from the earliest to the latest. The first frame of preview image is labeled "1", The preview image of the second frame is labeled "2"...The preview image of the sixth frame is labeled "6". It is understandable that the 6 frames of preview images can also be labeled according to the sequence of the generation time of the preview image from the latest generation to the earliest generation.
  • the multi-frame preview images are labeled in order from high to bottom, and the multi-frame preview images are labeled in order from large to small.
  • mapping relationship table can be generated by establishing a correspondence relationship between the label and the definition, and the mapping relationship table is stored in the electronic device.
  • the electronic device when the electronic device receives the shooting instruction, the label corresponding to the highest definition can be searched in the relational mapping table.
  • the electronic device when it receives the shooting instruction, it can determine whether the number of frames of the preview image in the current image buffer queue has reached the preset number of frames, and if the result of the determination is yes, it will search for the highest definition corresponding to the corresponding relationship. Label; if the judgment result is no, continue to collect preview images until the number of preview images in the image buffer queue reaches the preset number. In this way, it is possible to select from more candidate preview images to obtain relatively clear images and meet the user's needs for clear images.
  • the preview image corresponding to the label can be selected in the image cache queue, and the preview image can be used as the target image, and the preview image can be encoded and compressed according to the shooting instruction to form a certain image format, such as United Image Expert Group (Joint Photographic Experts Group (JPEG) format, as the target image output, displayed on the display screen of the electronic device.
  • JPEG Joint Photographic Experts Group
  • the relationship mapping table and the image cache queue stored in the electronic device can be deleted.
  • the target area is determined in the preview image, and the definition of the target area is obtained as the definition of the preview image. Compared with obtaining the definition of the entire preview image, it can be greatly reduced
  • the calculation amount of definition data improves the calculation speed of the definition of the target area of each frame of preview image.
  • the embodiment of the present application also provides an apparatus based on the shooting method.
  • the meaning of the nouns is the same as in the above-mentioned shooting method, and the specific implementation details can refer to the description in the method embodiment.
  • FIG. 3 is a schematic structural diagram of a photographing device provided by an embodiment of the present application.
  • the photographing device may include: an image acquisition unit 301, a definition acquisition unit 302, a relationship establishment unit 303, a label search unit 304, and an image selection unit 305.
  • the image acquisition unit 301 may be used to acquire multiple frames of preview images when the electronic device receives a camera start instruction.
  • the definition obtaining unit 302 may be used to obtain the definition of the multi-frame preview image.
  • the relationship establishing unit 303 may be used to label the multi-frame preview images, and establish the corresponding relationship between the definition and the label.
  • the label searching unit 304 may be used to search for the corresponding label with the highest definition according to the corresponding relationship when the electronic device receives the shooting instruction.
  • the image selection unit 305 may be configured to select a corresponding preview image according to the corresponding label, and use the preview image as a target image.
  • the photographing device may further include:
  • the area determining unit 306 is configured to determine the target area of each frame of the preview image in the multi-frame preview image.
  • the above-mentioned embodiment provides only the division of the above-mentioned functional modules for example when the photographing device provided in the above-mentioned embodiment performs photographing.
  • the above-mentioned functions can be allocated by different functional modules as required, i.e.
  • the internal structure is divided into different functional modules to complete all or part of the functions described above.
  • the photographing device and the photographing method provided in the foregoing embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.
  • the photographing apparatus adopts the image acquisition unit 301 to acquire a multi-frame preview image when the electronic device receives a camera start instruction; the definition acquisition unit 302 acquires the definition of the multi-frame preview image; the relationship establishment unit 303 Label the multi-frame preview images to establish the corresponding relationship between the definition and the label; when the electronic device receives a shooting instruction, the label search unit 304 searches for the highest definition according to the corresponding relationship The corresponding label; the image selection unit 305 selects the corresponding preview image according to the corresponding label, and uses the preview image as the target image.
  • This solution can select the preview image with the highest definition from the multiple frames of preview images as the target image, thereby avoiding image blurring caused by jitter and improving image quality.
  • the present application also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and capable of running on the processor, wherein the processor implements the shooting method provided in the method embodiment when the processor executes the program.
  • the electronic device 400 may be a device such as a smart phone or a tablet computer.
  • the electronic device 400 may include a processor 401 and a memory 402, where the processing 401 and the memory 402 are electrically connected.
  • the processor 401 is the control center of the electronic device 400. It uses various interfaces and lines to connect the various parts of the entire electronic device. It executes electronic operations by running or loading application programs stored in the memory 402, and calling data stored in the memory 402. Various functions and processing data of the equipment, so as to monitor the electronic equipment as a whole.
  • the processor 401 in the electronic device 400 will load the instructions corresponding to the process of one or more applications into the memory 402 according to the following steps, and the processor 401 will run the instructions and store them in the memory 402. In order to achieve various functions:
  • the processor 401 may be used to execute:
  • the processor 401 when obtaining the definition of the multi-frame preview image, the processor 401 may be configured to execute:
  • the processor 401 when determining the target area of each frame of the preview image in the multiple preview images, the processor 401 may be configured to execute:
  • the touched area is taken as the target area.
  • the processor 401 may also be used to execute:
  • the area where the face information is located is taken as the target area.
  • the processor 401 may also be used to execute:
  • the central area of the multi-frame preview image is taken as the target area.
  • the electronic device 400 collects multiple frames of preview images when the electronic device receives a camera start instruction; obtains the definition of the multiple frames of preview images; and labels the multiple frames of preview images, Establish a correspondence between the definition and the label; when the electronic device receives a shooting instruction, find the corresponding label with the highest definition according to the correspondence; select the corresponding preview image according to the corresponding label, And use the preview image as the target image.
  • This solution can select the preview image with the highest definition from the multiple frames of preview images as the target image, thereby avoiding image blurring caused by jitter and improving image quality.
  • the electronic device 500 may include a radio frequency (RF) circuit 501, a memory 502 including one or more computer-readable storage media, an input unit 503, a display unit 504, a sensor 504, an audio circuit 506, and wireless fidelity (
  • the Wireless Fidelity (WiFi) module 507 includes a processor 508 with one or more processing cores, a power supply 509 and other components.
  • RF radio frequency
  • the Wireless Fidelity (WiFi) module 507 includes a processor 508 with one or more processing cores, a power supply 509 and other components.
  • the radio frequency circuit 501 can be used to send and receive information, or to receive and send signals during a call. In particular, after receiving the downlink information of the base station, it is processed by one or more processors 508; in addition, the uplink data is sent to the base station. .
  • the radio frequency circuit 501 includes but is not limited to an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (Subscriber Identity Module, SIM) card, transceiver, coupler, Low Noise Amplifier (LNA), duplexer, etc.
  • the radio frequency circuit 501 can also communicate with the network and other devices through wireless communication.
  • the wireless communication can use any communication standard or protocol, including but not limited to the Global System for Mobile Communications (Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division Multiple Access) Multiple Access, CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (Long Term Evolution, LTE), e-mail, short message service (Short Messaging Service, SMS) etc.
  • GSM Global System for Mobile Communications
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • SMS short message service
  • the memory 502 can be used to store application programs and data.
  • the application program stored in the memory 502 contains executable code.
  • Application programs can be composed of various functional modules.
  • the processor 508 executes various functional applications and data processing by running application programs stored in the memory 502.
  • the memory 502 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of electronic devices (such as audio data, phone books, etc.), etc.
  • the memory 502 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the memory 502 may further include a memory controller to provide the processor 508 and the input unit 503 to access the memory 502.
  • the input unit 503 can be used to receive inputted numbers, character information or user characteristic information (such as fingerprints), and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.
  • the input unit 503 may include a touch-sensitive surface and other input devices.
  • a touch-sensitive surface also known as a touch screen or a touchpad, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch-sensitive surface or Operation near the surface), and drive the corresponding connection device according to the preset program.
  • the touch-sensitive surface may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 508, and can receive commands sent by the processor 508 and execute them.
  • the display unit 504 may be used to display information input by the user or information provided to the user and various graphical user interfaces of the electronic device. These graphical user interfaces may be composed of graphics, text, icons, videos, and any combination thereof.
  • the display unit 504 may include a display panel.
  • a liquid crystal display Liquid Crystal Display, LCD
  • organic light emitting diode Organic Light-Emitting Diode, OLED
  • the touch-sensitive surface can cover the display panel. When the touch-sensitive surface detects a touch operation on or near it, it is transmitted to the processor 508 to determine the type of the touch event, and then the processor 508 displays the display panel according to the type of the touch event.
  • Corresponding visual output is provided on the panel.
  • the touch-sensitive surface and the display panel are used as two independent components to realize the input and input functions, in some embodiments, the touch-sensitive surface and the display panel may be integrated to realize the input and output functions.
  • the electronic device may also include at least one sensor 505, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel according to the brightness of the ambient light, and the proximity sensor can close the display panel and/or when the electronic device is moved to the ear. Backlight.
  • the gravity acceleration sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when it is stationary.
  • mobile phone posture applications such as horizontal and vertical screen switching, related Games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, percussion), etc.; as for electronic equipment, other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. Repeat it again.
  • the audio circuit 506 can provide an audio interface between the user and the electronic device through a speaker and a microphone.
  • the audio circuit 506 can convert the received audio data into electrical signals, transmit them to the speakers, and then convert them into sound signals for output; on the other hand, the microphone converts the collected sound signals into electrical signals, which are converted into electrical signals after being received by the audio circuit 506.
  • the audio data is processed by the audio data output processor 508, and then sent to, for example, another electronic device through the radio frequency circuit 501, or the audio data is output to the memory 502 for further processing.
  • the audio circuit 506 may also include an earplug jack to provide communication between a peripheral earphone and an electronic device.
  • Wireless fidelity is a short-distance wireless transmission technology. Electronic devices can help users send and receive emails, browse web pages, and access streaming media through the wireless fidelity module 507. It provides users with wireless broadband Internet access.
  • FIG. 6 shows the wireless fidelity module 507, it can be understood that it is not a necessary component of the electronic device, and can be omitted as needed without changing the essence of the invention.
  • the processor 508 is the control center of the electronic device. It uses various interfaces and lines to connect the various parts of the entire electronic device, and executes the electronic device by running or executing the application program stored in the memory 502 and calling the data stored in the memory 502
  • the various functions and processing data of the electronic device can be used to monitor the electronic equipment as a whole.
  • the processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs, etc. ,
  • the modem processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 508.
  • the electronic device also includes a power source 509 (such as a battery) for supplying power to various components.
  • a power source 509 such as a battery
  • the power supply may be logically connected to the processor 508 through a power management system, so that functions such as charging, discharging, and power consumption management can be managed through the power management system.
  • the power supply 509 may also include one or more DC or AC power supplies, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and any other components.
  • the electronic device may also include a camera, a Bluetooth module, etc., which will not be repeated here.
  • each of the above modules can be implemented as an independent entity, or can be combined arbitrarily, and implemented as the same or several entities.
  • each of the above modules please refer to the previous method embodiments, which will not be repeated here.
  • the program can be stored in a computer-readable storage medium, such as It is stored in the memory of the terminal and executed by at least one processor in the terminal.
  • the execution process may include the flow of the embodiment of the NFC function detection method.
  • the storage medium may include: read only memory (Read Only Memory, ROM), random access memory (Random Access Memory, RAM), disks or CDs, etc.

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Abstract

本申请实施例公开一种拍摄方法,该拍摄方法包括:当电子设备接收到相机开启指令时,采集多帧预览图像;获取多帧预览图像的清晰度;对多帧预览图像进行标号,建立清晰度与标号之间的对应关系;当电子设备接收到拍摄指令时,根据对应关系查找最高清晰度的对应标号;根据对应标号选取对应的预览图像,并将预览图像作为目标图像。

Description

拍摄方法、存储介质及电子设备
本申请要求于2019年4月22日提交中国专利局、申请号为201910321868.4、发明名称为“拍摄方法、装置、存储介质及电子设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,尤其涉及一种拍摄方法、存储介质及电子设备。
背景技术
随着终端技术的发展,摄像头已经成为大多终端设备的标准配置,为用户提供拍照功能,给人们生活和工作带来了极大的乐趣和方便,随着人们对拍摄的图像质量的要求越来越高,摄像头的像素也越来越高。
然而,用户在使用终端设备进行拍照时,通常会因为多种原因造成抖动,进而造成图像模糊、质量较差。
技术问题
用户在使用终端设备进行拍照时,通常会因为多种原因造成抖动,进而造成图像模糊、质量较差。
技术解决方案
本申请实施例提供了一种拍摄方法、存储介质及电子设备,可以解决由于抖动造成的图像模糊问题,提高图像的质量。
第一方面,本申请实施例提供了一种拍摄方法,包括:
当电子设备接收到相机开启指令时,采集多帧预览图像;
获取所述多帧预览图像的清晰度;
对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系;
当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号;
根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。
在本申请实施例提供的拍摄方法中,在所述采集多帧预览图像之后,所述获取所述多帧预览图像的清晰度之前,还包括:
确定所述多帧预览图像中每帧预览图像的目标区域。
在本申请实施例提供的拍摄方法中,所述获取所述多帧预览图像的清晰度,包括:
获取所述每帧预览图像的目标区域的清晰度。
在本申请实施例提供的拍摄方法中,所述确定所述多种预览图像中每帧预览图像的目标区域,包括:
检测在采集所述多帧预览图像时,是否存在触碰对焦操作;
若存在,则将触碰区域作为目标区域。
在本申请实施例提供的拍摄方法中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
若不存在,则检测所述多帧预览图像中每帧预览图像是否含有人脸信息;
若含有,则将所述人脸信息的所在区域作为目标区域。
在本申请实施例提供的拍摄方法中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
若不含有,则将所述多帧预览图像的中心区域作为目标区域。
在本申请实施例提供的拍摄方法中,所述获取所述每帧预览图像的目标区域的清晰度,包括:
根据所述目标区域的大小及所述目标区域内各像素点的灰度值获取所述目标区域的清晰度。
第二方面,本申请实施例提供了一种存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现如下步骤:
当电子设备接收到相机开启指令时,采集多帧预览图像;
获取所述多帧预览图像的清晰度;
对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系;
当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号;
根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。
在本申请实施例提供的存储介质中,在所述采集多帧预览图像之后,所述获取所述多帧预览图像的清晰度之前,还包括:
确定所述多帧预览图像中每帧预览图像的目标区域。
在本申请实施例提供的存储介质中,所述获取所述多帧预览图像的清晰度,包括:
获取所述每帧预览图像的目标区域的清晰度。
在本申请实施例提供的存储介质中,所述确定所述多种预览图像中每帧预览图像的目标区域,包括:
检测在采集所述多帧预览图像时,是否存在触碰对焦操作;
若存在,则将触碰区域作为目标区域。
在本申请实施例提供的存储介质中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
若不存在,则检测所述多帧预览图像中每帧预览图像是否含有人脸信息;
若含有,则将所述人脸信息的所在区域作为目标区域。
在本申请实施例提供的存储介质中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
若不含有,则将所述多帧预览图像的中心区域作为目标区域。
第三方面,本申请实施例提供了一种电子设备,包括存储器,处理器及存储在存储器上并可在处理器上运行的计算机程序,所述处理器执行所述程序时执行如下步骤:
当电子设备接收到相机开启指令时,采集多帧预览图像;
获取所述多帧预览图像的清晰度;
对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系,生成映射关系表;
当所述电子设备接收到拍摄指令时,根据所述对应关系在所述映射关系表中查找最高清晰度的对应标号;
根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。
在本申请实施例提供的电子设备中,在所述采集多帧预览图像之后,所述获取所述多帧预览图像的清晰度之前,还包括:
确定所述多帧预览图像中每帧预览图像的目标区域。
在本申请实施例提供的电子设备中,所述获取所述多帧预览图像的清晰度,包括:
获取所述每帧预览图像的目标区域的清晰度。
在本申请实施例提供的电子设备中,所述确定所述多种预览图像中每帧预览图像的目标区域,包括:
检测在采集所述多帧预览图像时,是否存在触碰对焦操作;
若存在,则将触碰区域作为目标区域。
在本申请实施例提供的电子设备中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
若不存在,则检测所述多帧预览图像中每帧预览图像是否含有人脸信息;
若含有,则将所述人脸信息的所在区域作为目标区域。
在本申请实施例提供的电子设备中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
若不含有,则将所述多帧预览图像的中心区域作为目标区域。
在本申请实施例提供的电子设备中,所述获取所述每帧预览图像的目标区域的清晰度,包括:
根据所述目标区域的大小及所述目标区域内各像素点的灰度值获取所述目标区域的清晰度。
有益效果
本申请实施例采用当电子设备接收到相机开启指令时,采集多帧预览图像;获取所述多帧预览图像的清晰度;对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系;当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号;根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。本方案可以从多帧预览图像中选取清晰度最高的预览图像作为目标图像,从而避免了由于抖动而造成的图像模糊现象,提高了图像的质量。
附图说明
图1是本申请实施例提供的拍摄方法的流程示意图。
图2是本申请实施例提供的拍摄方法的另一流程示意图。
图3是本申请实施例提供的拍摄装置的结构示意图。
图4是本申请实施例提供的拍摄装置的另一结构示意图。
图5是本申请实施例提供的电子设备的结构示意图。
图6是本申请实施例提供的电子设备的另一结构示意图。
本发明的实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述。显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例提供了一种拍摄方法、装置、存储介质及电子设备,该拍摄方法的执行主体可以是本申请实施例提供的拍摄装置,该拍摄装置可以采用硬件或者软件的方式实现。在一个具体的实施例中,该拍摄装置可以集成在电子设备中,例如集成在智能手机或平板电脑等电子设备中。
以下将分别进行详细说明。
请参阅图1,图1是本申请实施例提供的拍摄方法的流程示意图,该拍摄方法的具体流程可以如下:
101、当电子设备接收到相机开启指令时,采集多帧预览图像。
其中,相机开启指令可以通过多种方式进行发送。
比如,可以在该电子设备中设置一实体按键或虚拟按键,当用户需要开启相机时,可以通过触发该实体按键或虚拟按键发送相机开启指令。也可以通过语音控制发送相机开启指令,比如“启动相机”等。还可以通过敲击该电子设备发送相机开启指令,比如可以预先在电子设备中设置敲击位置和敲击次数,用户可以通过在该电子设备外壳的预设敲击位置敲击预设次数发送相机开启指令。
在一些实施例中,可以在电子设备中设置一预设帧数的图像缓存队列,电子设备可以通过摄像头采集多帧预览图像,并将采集的多帧预览图像加入该图像缓存队列中。
需要说明的是,在采集预览图像的过程中,当采集到新的预览图像时,需要判断图像缓存队列中预览图像的帧数是否达到预设帧数,当判断结果为是时,则将图像缓存队列中生成时间最早的预览图像删除,并将新的预览图像添加到图像缓存队列;当判断结果为否时,则将新获取的预览图像添加到图像缓存队列。其中,预设帧数可以根据实际情况设定。比如,6、8、10等。
在实际应用过程中,图像缓存队列的长度是需要仔细考量的。若队列过长,则会造成内存消耗过大;若队列过短,则起不到过滤抖动图像的效果。一般来说,图像缓存队列的合适长度为刚好能够缓存用户从看到满意图像的帧开始到点击按钮进行拍摄的这段时间的帧个数。一般情况下,图像缓存队列的预设帧数可以为6。
在一些实施例中,在创建图像缓存队列之前,可以预先获取预览图像的容量大小。在一般情况下,相机所采集到的预览图像格式为NV21,此时预览图像的容量大小则为图像的宽度乘以高度的1.5倍。其中,预览图像的尺寸可以由用户自行设定。
为了避免在创建图像缓存队列时的分配的内存过大而造成电子设备内存消耗过大,或分配的内存过小,导致图像缓存队列中的帧数过少,而无法达到过滤抖动图像的效果。在一些实施例中,可以根据图像缓存队列的预设帧数和预览图像的容量大小为图像缓存队列分配对应的内存。
102、获取所述多帧预览图像的清晰度。
具体的,可以在每一帧预览图像中确定一个目标区域,并计算每一帧预览图像的目标区域的清晰度。也即,在步骤“采集多帧预览图像之后”之后,步骤“获取所述多帧预览图像的清晰度”之前,还可以包括:
确定所述多帧预览图像中每帧预览图像的目标区域。
也即,步骤“获取所述多帧预览图像的清晰度”可以包括:
获取所述每帧预览图像的目标区域的清晰度。
其中,该目标区域可以是图像拍摄界面的某一特定区域,也可以是用户指定选择的区域。而且目标区域的清晰度可以通过图像清晰度评价函数获取,具体可以根据目标区域的大小及目标区域内各像素点的灰度值获取目标区域的清晰度。通过获取预览图像中目标区域的清晰度,相较于获取整个预览图像的清晰度,可以大幅缩减清晰度的数据计算量,提高每一帧预览图像的目标区域的清晰度的计算速度。
    103、对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系。
在一些实施例中,可以按照预览图像的生成时间顺序对图像缓存队列中的多帧预览图像进行标号。比如,图像缓存队列中有6帧预览图像,此时,可以根据预览图像的生成时间从最早生成到最新生成的顺序分别对6帧预览图像进行标号,第一帧预览图像标号为“1”、第二帧预览图像标号为“2”……第六帧预览图像标号为“6”。可以理解的是,也可以根据预览图像的生成时间从最新生成到最早生成的顺序分别对6帧预览图像进行标号。
需要说明是的,对预览图像进行标号的方式可以有多种。比如,按照多帧预览图像的清晰度从高到底的顺序依次进行标号、按照多帧预览图像的大小从大到小的顺序依次进行标号等。
在对图像缓存队列中的多帧预览图像进行标号之后,可以通过建立标号与清晰度之间的对应关系,生成映射关系表,将该映射关系表存储在电子设备。例如下表所示:
  1 2 3 4 5 6
  200线 300线 800线 700线 900线 100线
104、当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号。
其中,拍摄指令可以通过多种方式进行发送。比如,可以在该电子设备中设置一实体按键或虚拟按键,当用户需要进行拍摄时,可以通过触发该实体按键或虚拟按键发送拍摄指令。也可以通过语音控制发送拍摄指令,比如“拍摄”等。还可以通过敲击该电子设备发送拍摄指令,比如可以预先在电子设备中设置敲击位置和敲击次数,用户可以通过在该电子设备外壳的预设敲击位置敲击预设次数发送拍摄指令。
具体的,可以在电子设备接收到拍摄指令时,可以根据对应关系在关系映射表中查找最高清晰度对应的标号。
需要说明的是,当电子设备接收到拍摄指令时,可以判断当前图像缓存队列中的预览图像的帧数是否达到预设帧数,若判断结果为是,则根据对应关系查找最高清晰度的对应标号;若判断结果为否,则继续采集预览图像,直到图像缓存队列中预览图像的帧数达到预设数量。通过这种方式,可以从更多的候选预览图像中进行选择,以获取相对清晰的图像,满足用户对清晰图像的需求。
    105、根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。
具体的,可以在图像缓存队列中选取该标号所对应的预览图像,并将该预览图像作为目标图像,并根据拍摄指令,将该预览图像进行编码压缩,形成一定的图像格式,如联合图像专家小组(Joint Photographic Experts Group,JPEG)格式,作为目标图像输出,在电子设备的显示屏上进行展示。
可以理解的是,为了避免造成电子设备的内存消耗过大,在相机关闭后,可以将存储在电子设备中的关系映射表和图像缓存队列删除。
本实施例采用当电子设备接收到相机开启指令时,采集多帧预览图像;获取所述多帧预览图像的清晰度;对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系;当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号;根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。本方案可以从多帧预览图像中选取清晰度最高的预览图像作为目标图像,从而避免了由于抖动而造成的图像模糊现象,提高了图像的质量。
上述实施例所描述的方法,以下将举例作进一步详细说明。如图2所示,本实施例的拍摄方法的具体流程可以如下:
201、当电子设备接收到相机开启指令时,采集多帧预览图像。
其中,相机开启指令可以通过多种方式进行发送。
比如,可以在该电子设备中设置一实体按键或虚拟按键,当用户需要开启相机时,可以通过触发该实体按键或虚拟按键发送相机开启指令。也可以通过语音控制发送相机开启指令,比如“启动相机”等。还可以通过敲击该电子设备发送相机开启指令,比如可以预先在电子设备中设置敲击位置和敲击次数,用户可以通过在该电子设备外壳的预设敲击位置敲击预设次数发送相机开启指令。
在一些实施例中,在创建图像缓存队列之前,可以预先获取预览图像的容量大小。在一般情况下,相机所采集到的预览图像格式为NV21,此时预览图像的容量大小则为图像的宽度乘以高度的1.5倍。其中,预览图像的尺寸可以由用户自行设定。
为了避免在创建图像缓存队列时的分配的内存过大而造成电子设备内存消耗过大,或分配的内存过小,导致图像缓存队列中的帧数过少,而无法达到过滤抖动图像的效果。在一些实施例中,可以根据图像缓存队列的预设帧数和预览图像的容量大小为图像缓存队列分配对应的内存。
在一些实施例中,可以在电子设备中设置一预设帧数的图像缓存队列,电子设备可以通过摄像头采集多帧预览图像,并将采集的多帧预览图像加入该图像缓存队列中。
需要说明的是,在采集预览图像的过程中,当采集到新的预览图像时,需要判断图像缓存队列中预览图像的帧数是否达到预设帧数,当判断结果为是时,则将图像缓存队列中生成时间最早的预览图像删除,并将新的预览图像添加到图像缓存队列;当判断结果为否时,则将新获取的预览图像添加到图像缓存队列。其中,预设帧数可以根据实际情况设定。比如,6、8、10等。
在实际应用过程中,图像缓存队列的长度是需要仔细考量的。若队列过长,则会造成内存消耗过大;若队列过短,则有可能起不到过滤抖动图像的效果。一般来说,图像缓存队列的合适长度为刚好能够缓存用户从看到满意图像的帧开始到点击按钮进行拍摄的这段时间的帧个数。一般情况下,该图像缓存队列的预设帧数可以设置为6。
202、检测在采集所述多帧预览图像时,是否存在触碰对焦操作;若存在,则执行步骤203;若不存在,则执行步骤204。
203、将触碰区域作为目标区域。
其中,该目标区域可以是图像拍摄界面的某一特定区域,也可以是用户指定选择的区域。可以理解的是,用户指定选择的优先权最高。也即当在采集预览图像时,若存在触碰对焦操作,则可以直接将触碰区域作为目标区域。
204、检测所述多帧预览图像中每帧预览图像是否含有人脸信息;若含有,则执行步骤205;若不含有,则执行步骤206。
205、将所述人脸信息的所在区域作为目标区域。
在一些实施例中,可以在检测到采集预览图像不存在触碰操作时,可以利用人脸识别技术,识别每预览图像中的人脸信息;并将人脸信息的所在区域作为目标区域。
    206、将所述多帧预览图像的中心区域作为目标区域。
在实际应用过程中,用户在拍摄图像时,可能并未进行触碰对焦操作,并且所拍摄的图像中也无人脸信息。比如,拍摄风景图像。可以理解的是,在拍摄图像时,若用户不进行触碰对焦,则相机会进行自动对焦操作。而自动对焦操作的对焦区域则一般为预览图像的中心区域。
207、获取所述每帧预览图像的目标区域的清晰度。
其中,目标区域的清晰度可以通过图像清晰度评价函数获取,具体可以根据目标区域的大小及目标区域内各像素点的灰度值获取目标区域的清晰度。通过获取预览图像中目标区域的清晰度,相较于获取整个预览图像的清晰度,可以大幅缩减清晰度的数据计算量,提高每一帧预览图像的目标区域的清晰度的计算速度。
    208、对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系。
在一些实施例中,可以按照预览图像的生成时间顺序对图像缓存队列中的多帧预览图像进行标号。比如,图像缓存队列中有6帧预览图像,此时,可以根据预览图像的生成时间从最早生成到最新生成的顺序分别对6帧预览图像进行标号,第一帧预览图像标号为“1”、第二帧预览图像标号为“2”……第六帧预览图像标号为“6”。可以理解的是,也可以根据预览图像的生成时间从最新生成到最早生成的顺序分别对6帧预览图像进行标号。
需要说明是的,对预览图像进行标号的方式可以有多种。比如,按照多帧预览图像的清晰度从高到底的顺序依次进行标号、按照多帧预览图像的大小从大到小的顺序依次进行标号等。
在对图像缓存队列中的多帧预览图像进行标号之后,可以通过建立标号与清晰度之间的对应关系,生成映射关系表,将该映射关系表存储在电子设备。
209、当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号。
具体的,可以在电子设备接收到拍摄指令时,可以在关系映射表中查找最高清晰度对应的标号。
需要说明的是,当电子设备接收到拍摄指令时,可以判断当前图像缓存队列中的预览图像的帧数是否达到预设帧数,若判断结果为是,则根据对应关系查找最高清晰度的对应标号;若判断结果为否,则继续采集预览图像,直到图像缓存队列中预览图像的帧数达到预设数量。通过这种方式,可以从更多的候选预览图像中进行选择,以获取相对清晰的图像,满足用户对清晰图像的需求。
    210、根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。
具体的,可以在图像缓存队列中选取该标号所对应的预览图像,并将该预览图像作为目标图像,并根据拍摄指令,将该预览图像进行编码压缩,形成一定的图像格式,如联合图像专家小组(Joint Photographic Experts Group,JPEG)格式,作为目标图像输出,在电子设备的显示屏上进行展示。
可以理解的是,为了避免造成电子设备的内存消耗过大,在相机关闭后,可以将存储在电子设备中的关系映射表和图像缓存队列删除。
本实施例通过获取多帧预览图像的清晰度时,在预览图像中确定目标区域,获取该目标区域的清晰度作为预览图像的清晰度,相较于获取整个预览图像的清晰度,可以大幅缩减清晰度的数据计算量,提高每一帧预览图像的目标区域的清晰度的计算速度。
为了便于更好的实施本申请实施例提供的拍摄方法,本申请实施例还提供了一种基于拍摄方法的装置。其中名词的含义与上述拍摄方法中相同,具体实现细节可以参考方法实施例中的说明。
请参阅图3,图3是本申请实施例提供的拍摄装置的结构示意图,该拍摄装置可以包括:图像采集单元301、清晰度获取单元302、关系建立单元303、标号查找单元304和图像选取单元305。
图像采集单元301,可以用于当电子设备接收到相机开启指令时,采集多帧预览图像。
清晰度获取单元302,可以用于获取所述多帧预览图像的清晰度。
关系建立单元303,可以用于对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系。
标号查找单元304,可以用于当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号。
图像选取单元305,可以用于根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。
在一些实施例中,请参阅图4,该拍摄装置还可以包括:
区域确定单元306,用于确定所述多帧预览图像中每帧预览图像的目标区域。
需要说明的是,上述实施例提供拍摄装置在进行拍摄时,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将设备的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。另外,上述实施例提供的拍摄装置与拍摄方法属于同一构思,其具体实现过程详见方法实施例,此处不再赘述。
本实施例提供的拍摄装置采用图像采集单元301当电子设备接收到相机开启指令时,采集多帧预览图像;由清晰度获取单元302获取所述多帧预览图像的清晰度;由关系建立单元303对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系;由标号查找单元304当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号;由图像选取单元305根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。本方案可以从多帧预览图像中选取清晰度最高的预览图像作为目标图像,从而避免了由于抖动而造成的图像模糊现象,提高了图像的质量。
本申请还提供一种电子设备,包括存储器,处理器及存储在存储器上并可在处理器上运行的计算机程序,其中,所述处理器执行所述程序时实现方法实施例提供的拍摄方法。
本申请又一实施例中还提供一种电子设备,该电子设备可以是智能手机、平板电脑等设备。如图5所示,电子设备400可以包括处理器401和存储器402,其中,处理401和存储器402电性连接。
处理器401是电子设备400的控制中心,利用各种接口和线路连接整个电子设备的各个部分,通过运行或加载存储在存储器402内的应用程序,以及调用存储在存储器402内的数据,执行电子设备的各种功能和处理数据,从而对电子设备进行整体监控。
在本实施例中,电子设备400中的处理器401会按照如下的步骤,将一个或一个以上的应用程序的进程对应的指令加载到存储器402中,并由处理器401来运行存储在存储器402中的应用程序,从而实现各种功能:
当电子设备接收到相机开启指令时,采集多帧预览图像;
获取所述多帧预览图像的清晰度;
对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系;
当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号;
根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。
在一些实施例中,处理器401可以用于执行:
确定所述多帧预览图像中每帧预览图像的目标区域。
在一些实施例中,在获取所述多帧预览图像的清晰度时,处理器401可以用于执行:
获取所述每帧预览图像的目标区域的清晰度。
在一些实施例中,在确定所述多种预览图像中每帧预览图像的目标区域时,处理器401可以用于执行:
检测在采集所述多帧预览图像时,是否存在触碰对焦操作;
若存在,则将触碰区域作为目标区域。
在一些实施例中,处理器401还可以用于执行:
若不存在,则检测所述多帧预览图像中每帧预览图像是否含有人脸信息;
若含有,则将所述人脸信息的所在区域作为目标区域。
在一些实施例中,处理器401还可以用于执行:
若不含有,则将所述多帧预览图像的中心区域作为目标区域。
由上可知,本实施例提供的电子设备400通过当电子设备接收到相机开启指令时,采集多帧预览图像;获取所述多帧预览图像的清晰度;对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系;当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号;根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。本方案可以从多帧预览图像中选取清晰度最高的预览图像作为目标图像,从而避免了由于抖动而造成的图像模糊现象,提高了图像的质量。
请参阅图6,图6是本申请实施例提供的电子设备的结构示意图。该电子设备500可以包括射频(Radio Frequency,RF)电路501、包括有一个或一个以上计算机可读存储介质的存储器502、输入单元503、显示单元504、传感器504、音频电路506、无线保真(Wireless Fidelity,WiFi)模块507、包括有一个或者一个以上处理核心的处理器508、以及电源509等部件。本领域技术人员可以理解,图6中示出的电子设备结构并不构成对电子设备的限定,可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。
射频电路501可用于收发信息,或通话过程中信号的接收和发送,特别地,将基站的下行信息接收后,交由一个或者一个以上处理器508处理;另外,将涉及上行的数据发送给基站。通常,射频电路501包括但不限于天线、至少一个放大器、调谐器、一个或多个振荡器、用户身份模块(Subscriber Identity Module,SIM)卡、收发信机、耦合器、低噪声放大器(Low Noise Amplifier,LNA)、双工器等。此外,射频电路501还可以通过无线通信与网络和其他设备通信。该无线通信可以使用任一通信标准或协议,包括但不限于全球移动通信系统(Global System of Mobile communication,GSM)、通用分组无线服务(General Packet Radio Service,GPRS)、码分多址(Code Division Multiple Access,CDMA)、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)、长期演进(Long Term Evolution,LTE)、电子邮件、短消息服务(Short Messaging Service,SMS)等。
存储器502可用于存储应用程序和数据。存储器502存储的应用程序中包含有可执行代码。应用程序可以组成各种功能模块。处理器508通过运行存储在存储器502的应用程序,从而执行各种功能应用以及数据处理。存储器502可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等;存储数据区可存储根据电子设备的使用所创建的数据(比如音频数据、电话本等)等。此外,存储器502可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。相应地,存储器502还可以包括存储器控制器,以提供处理器508和输入单元503对存储器502的访问。
输入单元503可用于接收输入的数字、字符信息或用户特征信息(比如指纹),以及产生与用户设置以及功能控制有关的键盘、鼠标、操作杆、光学或者轨迹球信号输入。具体地,在一个具体的实施例中,输入单元503可包括触敏表面以及其他输入设备。触敏表面,也称为触摸显示屏或者触控板,可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触敏表面上或在触敏表面附近的操作),并根据预先设定的程式驱动相应的连接装置。可选的,触敏表面可包括触摸检测装置和触摸控制器两个部分。其中,触摸检测装置检测用户的触摸方位,并检测触摸操作带来的信号,将信号传送给触摸控制器;触摸控制器从触摸检测装置上接收触摸信息,并将它转换成触点坐标,再送给处理器508,并能接收处理器508发来的命令并加以执行。
显示单元504可用于显示由用户输入的信息或提供给用户的信息以及电子设备的各种图形用户接口,这些图形用户接口可以由图形、文本、图标、视频和其任意组合来构成。显示单元504可包括显示面板。可选的,可以采用液晶显示器(Liquid Crystal Display,LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板。进一步的,触敏表面可覆盖显示面板,当触敏表面检测到在其上或附近的触摸操作后,传送给处理器508以确定触摸事件的类型,随后处理器508根据触摸事件的类型在显示面板上提供相应的视觉输出。虽然在图6中,触敏表面与显示面板是作为两个独立的部件来实现输入和输入功能,但是在某些实施例中,可以将触敏表面与显示面板集成而实现输入和输出功能。
电子设备还可包括至少一种传感器505,比如光传感器、运动传感器以及其他传感器。具体地,光传感器可包括环境光传感器及接近传感器,其中,环境光传感器可根据环境光线的明暗来调节显示面板的亮度,接近传感器可在电子设备移动到耳边时,关闭显示面板和/或背光。作为运动传感器的一种,重力加速度传感器可检测各个方向上(一般为三轴)加速度的大小,静止时可检测出重力的大小及方向,可用于识别手机姿态的应用(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等;至于电子设备还可配置的陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器,在此不再赘述。
音频电路506可通过扬声器、传声器提供用户与电子设备之间的音频接口。音频电路506可将接收到的音频数据转换成电信号,传输到扬声器,由扬声器转换为声音信号输出;另一方面,传声器将收集的声音信号转换为电信号,由音频电路506接收后转换为音频数据,再将音频数据输出处理器508处理后,经射频电路501以发送给比如另一电子设备,或者将音频数据输出至存储器502以便进一步处理。音频电路506还可能包括耳塞插孔,以提供外设耳机与电子设备的通信。
无线保真(WiFi)属于短距离无线传输技术,电子设备通过无线保真模块507可以帮助用户收发电子邮件、浏览网页和访问流式媒体等,它为用户提供了无线的宽带互联网访问。虽然图6示出了无线保真模块507,但是可以理解的是,其并不属于电子设备的必须构成,完全可以根据需要在不改变发明的本质的范围内而省略。
处理器508是电子设备的控制中心,利用各种接口和线路连接整个电子设备的各个部分,通过运行或执行存储在存储器502内的应用程序,以及调用存储在存储器502内的数据,执行电子设备的各种功能和处理数据,从而对电子设备进行整体监控。可选的,处理器508可包括一个或多个处理核心;优选的,处理器508可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序等,调制解调处理器主要处理无线通信。可以理解的是,上述调制解调处理器也可以不集成到处理器508中。
电子设备还包括给各个部件供电的电源509(比如电池)。优选的,电源可以通过电源管理系统与处理器508逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。电源509还可以包括一个或一个以上的直流或交流电源、再充电系统、电源故障检测电路、电源转换器或者逆变器、电源状态指示器等任意组件。
尽管图6中未示出,电子设备还可以包括摄像头、蓝牙模块等,在此不再赘述。
具体实施时,以上各个模块可以作为独立的实体来实现,也可以进行任意组合,作为同一或若干个实体来实现,以上各个模块的具体实施可参见前面的方法实施例,在此不再赘述。
需要说明的是,本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成,该程序可以存储于计算机可读存储介质中,如存储在终端的存储器中,并被该终端内的至少一个处理器执行,在执行过程中可包括如NFC功能检测方法的实施例的流程。其中,存储介质可以包括:只读存储器(Read Only Memory,ROM)、随机存取记忆体(Random Access Memory ,RAM)、磁盘或光盘等。
以上对本申请实施例提供的一种拍摄方法、装置、存储介质和电子设备进行了详细介绍,其各功能模块可以集成在一个处理芯片中,也可以是各个模块单独物理存在,也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想;同时,对于本领域的技术人员,依据本申请的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种拍摄方法,其包括:
    当电子设备接收到相机开启指令时,采集多帧预览图像;
    获取所述多帧预览图像的清晰度;
    对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系;
    当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号;
    根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。
  2. 如权利要求1所述的拍摄方法,其中,在所述采集多帧预览图像之后,所述获取所述多帧预览图像的清晰度之前,还包括:
    确定所述多帧预览图像中每帧预览图像的目标区域。
  3. 如权利要求2所述的拍摄方法,其中,所述获取所述多帧预览图像的清晰度,包括:
    获取所述每帧预览图像的目标区域的清晰度。
  4. 如权利要求2所述的拍摄方法,其中,所述确定所述多种预览图像中每帧预览图像的目标区域,包括:
    检测在采集所述多帧预览图像时,是否存在触碰对焦操作;
    若存在,则将触碰区域作为目标区域。
  5. 如权利要求4所述的拍摄方法,其中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
    若不存在,则检测所述多帧预览图像中每帧预览图像是否含有人脸信息;
    若含有,则将所述人脸信息的所在区域作为目标区域。
  6. 如权利要求5所述的拍摄方法,其中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
    若不含有,则将所述多帧预览图像的中心区域作为目标区域。
  7. 如权利要求3所述的拍摄方法,其中,所述获取所述每帧预览图像的目标区域的清晰度,包括:
    根据所述目标区域的大小及所述目标区域内各像素点的灰度值获取所述目标区域的清晰度。
  8. 一种存储介质,其上存储有计算机程序,其中,所述计算机程序被处理器执行时实现如下步骤:
    当电子设备接收到相机开启指令时,采集多帧预览图像;
    获取所述多帧预览图像的清晰度;
    对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系;
    当所述电子设备接收到拍摄指令时,根据所述对应关系查找最高清晰度的对应标号;
    根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。
  9. 如权利要求8所述的存储介质,其中,在所述采集多帧预览图像之后,所述获取所述多帧预览图像的清晰度之前,还包括:
    确定所述多帧预览图像中每帧预览图像的目标区域。
  10. 如权利要求9所述的存储介质,其中,所述获取所述多帧预览图像的清晰度,包括:
    获取所述每帧预览图像的目标区域的清晰度。
  11. 如权利要求9所述的存储介质,其中,所述确定所述多种预览图像中每帧预览图像的目标区域,包括:
    检测在采集所述多帧预览图像时,是否存在触碰对焦操作;
    若存在,则将触碰区域作为目标区域。
  12. 如权利要求11所述的存储介质,其中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
    若不存在,则检测所述多帧预览图像中每帧预览图像是否含有人脸信息;
    若含有,则将所述人脸信息的所在区域作为目标区域。
  13. 如权利要求12所述的存储介质,其中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
    若不含有,则将所述多帧预览图像的中心区域作为目标区域。
  14. 一种电子设备,包括存储器,处理器及存储在存储器上并可在处理器上运行的计算机程序,其中,所述处理器执行所述程序时执行如下步骤:
    当电子设备接收到相机开启指令时,采集多帧预览图像;
    获取所述多帧预览图像的清晰度;
    对所述多帧预览图像进行标号,建立所述清晰度与所述标号之间的对应关系,生成映射关系表;
    当所述电子设备接收到拍摄指令时,根据所述对应关系在所述映射关系表中查找最高清晰度的对应标号;
    根据所述对应标号选取对应的预览图像,并将所述预览图像作为目标图像。
  15. 如权利要求14所述的电子设备,其中,在所述采集多帧预览图像之后,所述获取所述多帧预览图像的清晰度之前,还包括:
    确定所述多帧预览图像中每帧预览图像的目标区域。
  16. 如权利要求15所述的电子设备,其中,所述获取所述多帧预览图像的清晰度,包括:
    获取所述每帧预览图像的目标区域的清晰度。
  17. 如权利要求15所述的电子设备,其中,所述确定所述多种预览图像中每帧预览图像的目标区域,包括:
    检测在采集所述多帧预览图像时,是否存在触碰对焦操作;
    若存在,则将触碰区域作为目标区域。
  18. 如权利要求17所述的电子设备,其中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
    若不存在,则检测所述多帧预览图像中每帧预览图像是否含有人脸信息;
    若含有,则将所述人脸信息的所在区域作为目标区域。
  19. 如权利要求18所述的电子设备,其中,所述确定所述多种预览图像中每帧预览图像的目标区域,还包括:
    若不含有,则将所述多帧预览图像的中心区域作为目标区域。
  20. 如权利要求16所述的电子设备,其中,所述获取所述每帧预览图像的目标区域的清晰度,包括:
    根据所述目标区域的大小及所述目标区域内各像素点的灰度值获取所述目标区域的清晰度。
PCT/CN2019/120990 2019-04-22 2019-11-26 拍摄方法、存储介质及电子设备 WO2020215720A1 (zh)

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