CN107181913A - A kind of photographic method and mobile terminal - Google Patents

Abstract

The invention provides a kind of photographic method and mobile terminal, wherein, the photographic method includes：Recognize the facial image in view area；Determine each facial image to the distance of camera；According to the distance of each facial image to camera, to the corresponding character image of facial image in initial shooting image, the adjustment of displaying ratio is carried out, target shooting image is generated.The displaying ratio of character image in above-mentioned technical proposal, the image shot according to the distance of photograph subject to camera, adjustment so that the ratio of each facial image will not improve the experience of taking pictures of user because distance is different and produces larger difference.

Description

A camera method and mobile terminal

technical field

The invention relates to the field of communication technologies, in particular to a photographing method and a mobile terminal.

Background technique

With the development of electronic technology, more and more functions are integrated on mobile terminals (such as mobile phones), such as photographing, maps, payment, shopping, etc., especially the photographing function, which facilitates people's demand for photographing. Because the mobile terminal is small in size and easy to carry, people can take pictures whenever and wherever they want, so the camera function on the mobile terminal has been liked by more and more people. In people’s daily use of taking pictures, many people (especially girls) are very concerned about the view that the size of the face affects the beauty and ugliness, especially when multiple people are shooting together, they all want to stand behind so that their faces appear when they are shooting together. Smaller, but this will make the face of the person standing in front appear larger, affecting the user experience of using the camera function on the mobile terminal for co-shooting.

Contents of the invention

Embodiments of the present invention provide a photographing method and a mobile terminal to solve the problem in the prior art that there is a large gap in the size of the face image due to the different distances from the photographed object to the camera when multiple people are co-photographing.

In the first aspect, a method for taking pictures is provided, which is applied to a mobile terminal, and is characterized in that it includes:

Recognize the face image in the viewfinder area;

Determine the distance from each face image to the camera;

According to the distance from each face image to the camera, the display ratio of the person image corresponding to the face image in the initial shot image is adjusted to generate a target shot image.

In a second aspect, a mobile terminal is provided, including:

A recognition module is used to recognize the face image in the viewfinder area;

A determination module, configured to determine the distance from each face image identified by the recognition module to the camera;

The generation module is used to adjust the display ratio of the person image corresponding to the face image in the initial shot image according to the distance from each face image determined by the determination module to generate the target shot image.

The beneficial effects of the present invention are:

The above technical solution intelligently adjusts the display ratio of the person images in the captured image according to the distance from the photographed subject to the camera, so that the ratio of each face image will not be greatly different due to the distance, and the user's photographing experience is improved.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 shows the flowchart of the photographing method provided by the embodiment of the present invention;

Fig. 2 shows the sub-step flowchart of step 103 provided by the embodiment of the present invention;

FIG. 3 shows a flowchart of sub-steps of step 1031 provided by an embodiment of the present invention;

FIG. 4 shows a flow chart of sub-steps of step 1032 provided by an embodiment of the present invention;

Fig. 5 shows one of the block diagrams of the mobile terminal provided by the embodiment of the present invention;

FIG. 6 shows the second block diagram of the mobile terminal provided by the embodiment of the present invention;

FIG. 7 shows the third block diagram of the mobile terminal provided by the embodiment of the present invention;

Fig. 8 shows the fourth block diagram of the mobile terminal provided by the embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

According to an aspect of the embodiments of the present invention, a photographing method is provided, which is applied to a mobile terminal. As shown in Figure 1, the photographing method includes:

Step 101, identifying the face image in the viewfinder area.

In this step, when taking a photo, recognize the face image in the viewfinder area, that is, recognize the face image displayed in the camera preview interface.

Specifically, face recognition technology may be used to recognize face images in the viewing area.

Step 102, determine the distance from each face image to the camera.

After the face images in the framing area are identified through step 101, this step will determine the distance from each face in the framing area to the camera.

Among them, when performing face recognition, the recognized face image is usually framed by a rectangular frame on the preview interface of the camera. In this step, when determining the distance from the face to the camera, the distance from the midpoint of the rectangular frame to the front end of the camera can be determined. distance. Specifically, the distance from each face image to the camera may be determined by a dual-camera ranging method, an infrared ranging method, or a laser ranging method. Since the dual-camera ranging method, the infrared ranging method, and the laser ranging method are existing technologies, the embodiments of the present invention will not repeat them here.

Step 103 , according to the distance from each face image to the camera, adjust the display ratio of the person image corresponding to the face image in the initial shot image to generate a target shot image.

After determining the distance from the face image to the camera in step 102, this step adjusts the display ratio of the person image corresponding to the face image in the initial shot image according to the distance, and corresponds to the face image far away from the camera. The display ratio of the person image in the photo is increased, and the display ratio of the person image corresponding to the face image close to the camera is reduced, so as to balance the display ratio of the person image (including the face image) in the photo, so that the face image in the photo The size of the camera will not vary greatly due to the distance from the camera, which improves the photo experience when multiple people shoot together.

Wherein, the initial captured image mentioned here is an image in the viewfinder area that is captured when the camera's photographing instruction is triggered.

Wherein, the photographing instruction described here includes, but is not limited to: at least one of a physical key trigger instruction, a touch gesture operation instruction, a voice trigger instruction, a fingerprint trigger instruction, and a press trigger instruction. Specifically, the above-mentioned instructions can be triggered by one or more physical buttons, button time interval triggers, touch screen single-point or multi-point operation triggers, infrared sensor triggers, acceleration sensor triggers, gyroscope sensor triggers, temperature sensor triggers , fingerprint recognition trigger, voice recognition trigger, gesture recognition trigger or image recognition trigger, etc. Certainly, the above triggering manner is only an example, and any other manners capable of triggering the terminal camera can be applied to the embodiment of the present invention, and will not be described here one by one.

It should be noted that the description order of the above steps is only for describing the technical solutions provided by the embodiments of the present invention, and is not a strict execution order, which can be adjusted according to actual needs.

It should also be noted that, in order to ensure that the face image in the captured image is consistent with the face image whose distance to the camera is determined, the distance may be determined when the photographing instruction is acquired.

In the above technical solution, according to the distance from the subject to the camera, the display ratio of the person images in the captured images is adjusted, so that the ratio of the face images in each person image will not be greatly different due to different distances, thereby improving the user's photographing experience .

Further, as shown in Figure 2, according to the distance from each face image to the camera in step 103, the display ratio of the person image corresponding to the face image in the initial captured image is adjusted to generate the target captured image, specifically including :

Step 1031. Determine the person image corresponding to the face image.

Before adjusting the display ratio of the person image, it is necessary to determine the person image corresponding to each face image, so as to adjust the overall display ratio of the person image, not just the adjustment of the display ratio of the face image, so as to ensure the balance of the image display .

Preferably, in this embodiment of the present invention, the method described in steps 10311 to 10313 described below may be used to determine the person image corresponding to the face image. Wherein, as shown in Figure 3, the determination of the person image corresponding to the face image in step 1031 specifically includes:

Step 10311, respectively determine the first distance from the pixels in the preset area outside each face image to the camera.

After determining the distance from the face in the framing area to the camera, then determine the distance from the pixels in the preset area outside each face image to the camera (ie the first distance).

Wherein, the pixels outside the face image mentioned here refer to the pixels outside the rectangular frame used to identify the face image. The value range of the preset area described here can be set according to actual needs, and the preset area can be an area with a regular shape or an area with an irregular shape.

Wherein, when judging the distance of the pixels other than the face image, the selection and judging of the pixels can be carried out according to the rule of the distance from the rectangular frame from near to far.

Step 10312. Determine the difference between the first distance and the distance from each face image to the camera.

After step 10311 determines the distance from a certain pixel outside the face image to the camera, this step calculates the difference between the distance from the pixel to the camera and the distance from each face image to the camera.

Wherein, the difference described here is a value greater than or equal to 0, that is, the difference is the distance value between the first distance and the distance from each face image to the camera, the distance value with a larger value minus the distance value with a smaller value The difference is understood as the absolute value of the difference between the first distance and the distance from each face image to the camera.

Step 10313, attribute the pixels whose difference value is less than or equal to the preset difference value to the person image corresponding to the corresponding face image.

When the difference between the distance from a pixel to the camera and the distance from a face image to the camera is less than the preset difference, the pixel is assigned to the person image corresponding to the face image, so that the image belonging to the person Other parts such as the body and the items held are adjusted as a whole to adjust the display ratio.

Wherein, the preset difference can be selected according to actual needs.

Step 1032, according to the distance from each face image to the camera, determine the scaling ratio of the person image corresponding to each face image.

In this step, according to the distance from each face image to the camera, the zoom ratio for adjusting the display ratio of each person image is determined.

Preferably, in the embodiment of the present invention, the scaling ratio of the person image corresponding to each face image can be determined by using the methods described in steps 10321 to 10322 as described below. Wherein, as shown in Figure 4, according to the distance from each face image to the camera in step 1032, determine the zoom ratio of the person image corresponding to each face image, specifically including:

Step 10321, determine the reference face image.

Before determining the scaling ratio of the person image, a reference face image is firstly selected from all the face images in the viewing area.

For the reference face image, the user can independently select a reference face image according to the needs. For example, when selecting the reference face image, the user touches one of the face images, and then the face image is determined as the reference face image. Face image; it is also possible to automatically select a face image as the reference face image by the system, for example, select a face image with a distance centered as the reference face image. The specific implementation is: according to the user's selection operation on the face image, determine the reference face image; or according to the distance from each face image to the camera, determine the reference face image from all the face images in the viewing area.

Step 10322: Determine the ratio of the second distance from the reference face image to the camera to the third distance from other face images to the camera as the scaling ratio of the person image corresponding to the other face images.

In this step, the ratio of the distance from other face images to the camera outside the reference face image and the distance from the reference face image to the camera is used to determine the scaling ratio of the person images corresponding to other face images, and the calculation formula is a =d/d ₀ , where a is the zoom ratio, d is the object distance from other face images to the camera, and d ₀ is the distance from the reference face image to the camera.

Wherein, the other face images are all face images in the viewing area except the reference face image; the scaling ratio of the person image corresponding to the reference face image is 1.

Step 1033 , according to the zoom ratio, adjust the display ratio of the person image corresponding to each face image to generate a target captured image.

According to the zoom ratio determined in step 1032, the display ratio of the person image corresponding to each face image is adjusted to generate the target image, that is, the display ratio of the person image corresponding to the face image far away from the camera is increased, and the person image closer to the camera is adjusted. The display ratio of the person image corresponding to the face image is reduced, so that the subject of the photo is pulled to the same distance (equivalent to removing the depth of field effect), and the display ratio of the person image (including the face image) in the photo is balanced, so that the image in the photo The size of the face image will not vary greatly due to the distance from the camera, which improves the photo experience when multiple people shoot together.

To sum up, the photographing method provided by the embodiment of the present invention adjusts the display ratio of the person images in the photographed images according to the distance from the photographed subject to the camera, so that the ratio of the face images in each person image will not vary due to the different distances. There is a large difference, thereby improving the user's photo experience.

According to another aspect of the embodiments of the present invention, a mobile terminal is provided. As shown in Figure 5, the mobile terminal 500 includes:

The identification module 501 is configured to identify the face images in the viewing area.

When taking pictures, the recognition module 501 recognizes the face images in the viewing area, that is, recognizes the face images displayed in the camera preview interface.

Specifically, face recognition technology may be used to recognize face images in the viewing area.

The determination module 502 is configured to determine the distance from each face image recognized by the recognition module 501 to the camera.

After the recognition module 501 recognizes the face images in the viewfinder area, the determination module 502 determines the distance from each face in the viewfinder area to the camera.

Among them, when performing face recognition, the recognized face image is usually framed by a rectangular frame on the preview interface of the camera. In this step, when determining the distance from the face to the camera, the distance from the midpoint of the rectangular frame to the front end of the camera can be determined. distance. Specifically, the distance from each face image to the camera may be determined by a dual-camera ranging method, an infrared ranging method, or a laser ranging method. Since the dual-camera ranging method, the infrared ranging method, and the laser ranging method are existing technologies, the embodiments of the present invention will not repeat them here.

The generation module 503 is configured to adjust the display ratio of the person image corresponding to the face image in the initial shot image according to the distance from each face image determined by the determination module 502 to the camera, and generate the target shot image.

After the distance from the face image to the camera is determined by the determination module 502, the generation module 503 adjusts the display ratio of the person image corresponding to the face image in the initial captured image according to the distance, and the person far away from the camera The display ratio of the person image corresponding to the face image is increased, and the display ratio of the person image corresponding to the face image close to the camera is reduced, so as to balance the display ratio of the person image (including the face image) in the photo, so that The size of the face image will not vary greatly due to the distance from the camera, which improves the photo experience when multiple people shoot together.

Wherein, the initial captured image mentioned here is an image in the viewfinder area that is captured when the camera's photographing instruction is triggered.

Wherein, the photographing instruction described here includes, but is not limited to: at least one of a physical key trigger instruction, a touch gesture operation instruction, a voice trigger instruction, a fingerprint trigger instruction, and a press trigger instruction. Specifically, the above-mentioned instructions can be triggered by one or more physical buttons, button time interval triggers, touch screen single-point or multi-point operation triggers, infrared sensor triggers, acceleration sensor triggers, gyroscope sensor triggers, temperature sensor triggers , fingerprint recognition trigger, voice recognition trigger, gesture recognition trigger or image recognition trigger, etc. Certainly, the above triggering manner is only an example, and any other manners capable of triggering the terminal camera can be applied to the embodiment of the present invention, and will not be described here one by one.

It should be noted that the description order of the above steps is only for describing the technical solutions provided by the embodiments of the present invention, and is not a strict execution order, which can be adjusted according to actual needs.

It should also be noted that, in order to ensure that the face image in the captured image is consistent with the face image whose distance to the camera is determined, the distance may be determined when the photographing instruction is acquired.

Further, as shown in Figure 6, the generating module 503 includes:

The first determination sub-module 5031 is configured to determine the person image corresponding to the face image.

Before adjusting the display ratio of the person image, it is necessary to determine the person image corresponding to each face image through the first determination sub-module 5031, so as to adjust the overall display ratio of the person image, not just the display ratio of the face image Adjust to ensure that the image display is balanced.

The second determination sub-module 5032 is configured to determine the scaling ratio of the person image corresponding to each face image according to the distance from each face image to the camera.

The second determination sub-module 5032 determines the zoom ratio for display ratio adjustment of each person image according to the distance from each face image to the camera.

The generation sub-module 5033 is used to adjust the display ratio of the person image corresponding to each face image according to the zoom ratio, and generate the target captured image.

The generation sub-module 5033 adjusts the display ratio of the person image corresponding to each face image according to the zoom ratio determined by the second determination sub-module 5032, and generates the target captured image, that is, the display of the person image corresponding to the face image far away from the camera Increase the ratio, and reduce the display ratio of the person image corresponding to the face image closer to the camera, so as to pull the photographed object to the same distance (equivalent to removing the depth of field effect), and balance the image of the person in the photo (including the face image) ) display ratio, so that the size of the face image in the photo will not be greatly different due to the distance from the camera, which improves the photo experience when multiple people take pictures together.

Further, as shown in Figure 6, the first determining submodule 5031 includes:

The first determination unit 50311 is configured to respectively determine a first distance from a pixel in a preset area outside each face image to the camera.

After determining the distance from the face in the viewfinder area to the camera, the first determination unit 50311 determines the distance from the pixels outside each face image to the camera (that is, the first distance).

Wherein, the pixels outside the face image mentioned here refer to the pixels outside the rectangular frame used to identify the face image. The value range of the preset area described here can be set according to actual needs, and the preset area can be an area with a regular shape or an area with an irregular shape.

Wherein, when judging the distance of the pixels other than the face image, the selection and judging of the pixels can be carried out according to the rule of the distance from the rectangular frame from near to far.

A judging unit 50312, configured to judge the difference between the first distance and the distance from each face image to the camera.

After the first determination unit 50311 determines the distance from a certain pixel outside the face image to the camera, the judgment unit 50312 calculates the difference between the distance from the pixel to the camera and the distance from each face image to the camera.

Wherein, the difference described here is a value greater than or equal to 0, that is, the difference is the distance value between the first distance and the distance from each face image to the camera, the distance value with a larger value minus the distance value with a smaller value The difference is understood as the absolute value of the difference between the first distance and the distance from each face image to the camera.

The processing unit 50313 is configured to attribute the pixels whose difference value is less than or equal to the preset difference value to the person image corresponding to the corresponding face image.

When the difference between the distance from a certain pixel point to the camera and the distance from a face image to the camera is less than the preset difference, the processing unit 50313 assigns the pixel point to the person image corresponding to the face image, so that the Other parts of the character, such as the body, the items held, etc., are adjusted as a whole to adjust the display ratio.

Wherein, the preset difference can be selected according to actual needs.

Further, as shown in Figure 6, the second determining submodule 5032 includes:

The second determining unit 50321 is configured to determine a reference face image.

Before determining the zoom ratio of the person image, a reference person face image is first selected from all the face images in the viewing area by the second determination unit 50321 .

The third determining unit 50322 is configured to determine the ratio of the second distance from the reference face image to the camera to the third distance from other face images to the camera as the scaling ratio of the person image corresponding to the other face images.

Wherein, the other face images are all face images in the viewing area except the reference face image; the scaling ratio of the person image corresponding to the reference face image is 1.

The third determining unit 50322 determines the scaling ratio of the person image corresponding to the other face images by the ratio of the distance from the camera to other face images other than the reference face image and the distance from the reference face image to the camera, and the calculation formula is: a=d/d ₀ , where a is the zoom ratio, d is the object distance from other face images to the camera, and d ₀ is the distance from the reference face image to the camera.

Further, as shown in Figure 6, the second determining unit 50321 includes:

The determining subunit 503211 is used to determine the reference face image according to the user's selection operation on the face image; or determine the reference face image from all the face images in the viewing area according to the distance from each face image to the camera .

For the reference face image, the user can independently select a reference face image according to the needs. For example, when selecting the reference face image, the user touches one of the face images, and then the face image is determined as the reference face image. Face image; it is also possible to automatically select a face image as the reference face image by the system, for example, select a face image with a distance centered as the reference face image. The specific implementation is: according to the user's selection operation on the face image, determine the reference face image; or according to the distance from each face image to the camera, determine the reference face image from all the face images in the viewing area.

To sum up, the mobile terminal provided by the embodiment of the present invention uses the recognition module 501 to recognize the face images in the viewing area, and then uses the determination module 502 to determine the distance from each face image recognized by the recognition module 501 to the camera. Finally, According to the distance from each face image to the camera determined by the determination module 502 , the generation module 503 adjusts the display ratio of the person image corresponding to the face image in the initial shot image to generate a target shot image. According to the distance from the photographed object to the camera, the display ratio of the person images in the captured images is adjusted, so that the ratio of the face images in each person image will not be greatly different due to different distances, thereby improving the user's photographing experience.

According to another aspect of the embodiments of the present invention, a mobile terminal 700 is provided. As shown in FIG. 7 , the mobile terminal 700 includes: at least one processor 701 , a memory 702 , at least one network interface 704 and a user interface 703 . Various components in the mobile terminal 700 are coupled together through a bus system 705 . It can be understood that the bus system 705 is used to realize connection and communication between these components. In addition to the data bus, the bus system 705 also includes a power bus, a control bus and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 705 in FIG. 7 .

Wherein, the user interface 703 may include a display, a keyboard or a pointing device (for example, a mouse, a trackball (trackball), a touch panel or a touch screen, and the like.

It can be understood that the memory 702 in the embodiment of the present invention may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data RateSDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) and Direct memory bus random access memory (DirectRambus RAM, DRRAM). Memory 702 of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

In some implementations, the memory 702 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: an operating system 7021 and an application program 7022 .

Among them, the operating system 7021 includes various system programs, such as framework layer, core library layer, driver layer, etc., for realizing various basic services and processing hardware-based tasks. The application program 7022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., and is used to implement various application services. The program for realizing the method of the embodiment of the present invention may be included in the application program 7022 .

In the embodiment of the present invention, by calling the program or instruction stored in the memory 702, specifically, the program or instruction stored in the application program 7022, the processor 701 is used to identify the face image in the viewing area; The distance from the image to the camera; according to the distance from each face image to the camera, adjust the display ratio of the person image corresponding to the face image in the initial shot image to generate a target shot image.

The methods disclosed in the foregoing embodiments of the present invention may be applied to the processor 701 or implemented by the processor 701 . The processor 701 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 701 or instructions in the form of software. The above-mentioned processor 701 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the methods disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and completes the steps of the above method in combination with its hardware.

It should be understood that the embodiments described herein may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, other electronic units for performing the functions described in this application or a combination thereof.

For a software implementation, the techniques described herein can be implemented through modules (eg, procedures, functions, and so on) that perform the functions described herein. Software codes can be stored in memory and executed by a processor. Memory can be implemented within the processor or external to the processor.

Optionally, the processor 701 is also configured to: determine the person image corresponding to the face image; determine the scaling ratio of the person image corresponding to each face image according to the distance from each face image to the camera; The display ratio of the person image corresponding to each face image is adjusted to generate the target shooting image.

Optionally, the processor 701 is further configured to: respectively determine a first distance from a pixel in a preset area outside each face image to the camera; determine the difference between the first distance and the distance from each face image to the camera value; attribute the pixels whose difference value is less than or equal to the preset difference value to the person image corresponding to the corresponding face image.

Optionally, the processor 701 is further configured to: determine a reference face image; determine the ratio of the second distance from the reference face image to the camera to the third distance from other face images to the camera as other face images The scaling ratio of the corresponding character image. Wherein, the other face images are all face images in the viewing area except the reference face image; the scaling ratio of the person image corresponding to the reference face image is 1.

Optionally, the processor 701 is also configured to determine the reference face image according to the user's selection operation on the face image; or determine the reference face image from all the face images in the viewing area according to the distance from each face image to the camera. face image.

The mobile terminal 700 can implement various processes implemented by the mobile terminal in the foregoing embodiments, and to avoid repetition, details are not repeated here.

The mobile terminal 700 provided by the embodiment of the present invention adjusts the display ratio of the person images in the captured images according to the distance from the camera subject to the camera, so that the ratio of the face images in each person image will not be greatly different due to different distances , so as to improve the user's camera experience.

According to another aspect of the embodiments of the present invention, a mobile terminal 800 is provided. Specifically, the mobile terminal 800 may be a mobile phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), or a vehicle-mounted computer.

As shown in Figure 8, the mobile terminal 800 includes a radio frequency (Radio Frequency, RF) circuit 801, a memory 802, an input unit 803, a display unit 804, a processor 806, an audio circuit 807, a WiFi (Wireless Fidelity) module 808 and a power supply 809 .

Among them, the input unit 803 can be used to receive the number or character information input by the user, and generate signal input related to the user setting and function control of the mobile terminal 800 . Specifically, in this embodiment of the present invention, the input unit 803 may include a touch panel 8031 . The touch panel 8031, also referred to as a touch screen, can collect user's touch operations on or near it (such as the user's operation on the touch panel 8031 using any suitable object or accessory such as a finger and a stylus), and The specified program drives the corresponding connected device. Optionally, the touch panel 8031 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and 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 sends it to the to the processor 806, and can receive and execute commands sent by the processor 806. In addition, the touch panel 8031 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 8031, the input unit 803 may also include other input devices 8032, which may include but not limited to physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, etc. one or more of.

Wherein, the display unit 804 can be used to display information input by the user or information provided to the user and various menu interfaces of the mobile terminal 800 . The display unit 804 may include a display panel 8041. Optionally, the display panel 8041 may be configured in the form of an LCD or an organic light-emitting diode (Organic Light-Emitting Diode, OLED).

It should be noted that the touch panel 8031 can cover the display panel 8041 to form a touch display screen. When the touch display screen detects a touch operation on or near it, it is sent to the processor 806 to determine the type of the touch event, and then the processor 806 provides corresponding visual output on the touch display screen according to the type of the touch event.

The touch display screen includes an application program interface display area and a common control display area. The arrangement of the display area of the application program interface and the display area of the commonly used controls is not limited, and may be an arrangement in which the two display areas can be distinguished, such as vertical arrangement, left-right arrangement, and the like. The application program interface display area can be used to display the interface of the application program. Each interface may include at least one interface element such as an icon of an application program and/or a widget desktop control. The application program interface display area can also be an empty interface without any content. The commonly used control display area is used to display controls with a high usage rate, for example, application icons such as setting buttons, interface numbers, scroll bars, and phonebook icons.

Among them, the processor 806 is the control center of the mobile terminal 800, which uses various interfaces and lines to connect various parts of the entire mobile phone, and runs or executes the software programs and/or modules stored in the first memory 8021, and calls the stored in the first memory 8021. The data in the second memory 8022 executes various functions of the mobile terminal 800 and processes data, so as to monitor the mobile terminal 800 as a whole. Optionally, the processor 806 may include one or more processing units.

In the embodiment of the present invention, the processor 806 is used to identify the face image in the viewing area by calling the software program and/or module stored in the first memory 8021 and/or the data in the second memory 8022; The distance from each face image to the camera; according to the distance from each face image to the camera, adjust the display ratio of the person image corresponding to the face image in the initial shot image to generate a target shot image.

Optionally, the processor 806 is also configured to: determine the person image corresponding to the face image; determine the scaling ratio of the person image corresponding to each face image according to the distance from each face image to the camera; The display ratio of the person image corresponding to each face image is adjusted to generate the target shooting image.

Optionally, the processor 806 is further configured to: respectively determine a first distance from a pixel in a preset area outside each face image to the camera; determine the difference between the first distance and the distance from each face image to the camera value; attribute the pixels whose difference value is less than or equal to the preset difference value to the person image corresponding to the corresponding face image.

Optionally, the processor 806 is further configured to: determine a reference face image; determine the ratio of the second distance from the reference face image to the camera to the third distance from other face images to the camera as other face images The scaling ratio of the corresponding character image. Wherein, the other face images are all face images in the viewing area except the reference face image; the scaling ratio of the person image corresponding to the reference face image is 1.

Optionally, the processor 806 is also configured to: determine the reference face image according to the user's selection operation on the face image; or determine from all the face images in the viewing area according to the distance from each face image to the camera. Reference face image.

It can be seen that the mobile terminal 800 provided in the embodiment of the present invention adjusts the display ratio of the person images in the captured images according to the distance from the camera subject to the camera, so that the ratio of the face images in each person image will not be different due to the different distances. There is a big difference, so as to improve the user's photo experience.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed in the embodiments of the present invention can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. a kind of photographic method, applied to mobile terminal, it is characterised in that including：

Recognize the facial image in view area；

Determine each facial image to the distance of camera；

According to the distance of each facial image to camera, to the corresponding character image of facial image in initial shooting image, The adjustment of displaying ratio is carried out, target shooting image is generated.

2. photographic method according to claim 1, it is characterised in that it is described according to each facial image to camera away from From to the corresponding character image of facial image in initial shooting image, the adjustment of progress displaying ratio generates target shooting figure The step of picture, including：

It is determined that character image corresponding with facial image；

According to the distance of each facial image to camera, the scaling of the corresponding character image of each facial image is determined；

According to the scaling, character image corresponding to each facial image carries out the adjustment of displaying ratio, generates target Shooting image.

3. photographic method according to claim 2, it is characterised in that determination character image corresponding with facial image The step of, including：

Determine the pixel in the predeterminable area outside each facial image to the first distance of camera respectively；

Judge the difference of first distance and the distance of each facial image to camera；

The difference is less than or equal into the pixel of preset difference value to belong in the corresponding character image of corresponding facial image.

4. photographic method according to claim 2, it is characterised in that it is described according to each facial image to camera away from From, the step of determining the scaling of the corresponding character image of each facial image, including：

It is determined that with reference to facial image；

By the second distance of the reference facial image to camera, the ratio with the 3rd distance of other facial images to camera Value, is defined as the scaling of the corresponding character image of other described facial images；

Wherein, other described facial images are the people in the face images in view area in addition to the reference facial image Face image；The scaling of the corresponding character image of the reference facial image is 1.

5. photographic method according to claim 4, it is characterised in that the step of determination refers to facial image, including：

According to selection operation of the user to facial image, it is determined that with reference to facial image；Or

According to the distance of each facial image to camera, from the face images in view area, it is determined that with reference to face Image.

6. a kind of mobile terminal, it is characterised in that including：

Identification module, for recognizing the facial image in view area；

Determining module, for determining each facial image that the identification module identifies to the distance of camera；

Generation module, each facial image for being determined according to the determining module is clapped initial to the distance of camera The corresponding character image of facial image taken the photograph in image, carries out the adjustment of displaying ratio, generates target shooting image.

7. mobile terminal according to claim 6, it is characterised in that the generation module includes：

First determination sub-module, for determining character image corresponding with facial image；

Second determination sub-module, for the distance according to each facial image to camera, determines that each facial image is corresponding The scaling of character image；

Submodule is generated, for according to the scaling, character image corresponding to each facial image to carry out displaying ratio Adjustment, generate target shooting image.

8. mobile terminal according to claim 7, it is characterised in that first determination sub-module includes：

First determining unit, for determining the pixel in the predeterminable area outside each facial image to the of camera respectively One distance；

Judging unit, the difference for judging first distance and the distance of each facial image to camera；

Processing unit, it is corresponding for the difference to be belonged into corresponding facial image less than or equal to the pixel of preset difference value In character image.

9. mobile terminal according to claim 7, it is characterised in that second determination sub-module includes：

Second determining unit, for determining to refer to facial image；

3rd determining unit, for by the second distance of the reference facial image to camera, with other facial images to taking the photograph As the ratio of the 3rd distance of head, it is defined as the scaling of the corresponding character image of other described facial images；

Wherein, other described facial images are the people in the face images in view area in addition to the reference facial image Face image；The scaling of the corresponding character image of the reference facial image is 1.

10. mobile terminal according to claim 9, it is characterised in that second determining unit includes：

Determination subelement, for according to selection operation of the user to facial image, it is determined that with reference to facial image；Or according to each Facial image to camera distance, from the face images in view area, it is determined that with reference to facial image.