CN107895352A - A kind of image processing method and mobile terminal - Google Patents

Abstract

The present invention provides an image processing method and a mobile terminal, which relate to the technical field of image processing. The method includes: identifying a human face area in an original image; performing blur processing on the human face area to obtain a blurred image; Brightens the highlights in the image by blurring them. In the present invention, by brightening the high light part, the area corresponding to the high light part can form sharp contrast and obvious difference between light and dark with other areas, thereby improving the three-dimensional effect of the image.

Description

Image processing method and mobile terminal

technical field

The embodiments of the present invention relate to the technical field of image processing, and in particular, to an image processing method and a mobile terminal.

Background technique

With the continuous development of image technology, users generally use a beautification function to beautify the image obtained after taking a photo with a mobile terminal, so as to process defects in the image and obtain a beautified image.

In related technologies, when a user triggers an operation to beautify an image, the mobile terminal may respond to the user-triggered operation by rendering and modifying the skin texture in the image, reducing contrast, etc., to make the skin in the image smoother, and obtain After beautifying the image, complete the beautification of the image.

However, after the image is processed by drawing modification, contrast reduction, etc., the outline and shadow of the image are not clear, which may easily cause insufficient three-dimensional effect of the image.

Contents of the invention

Embodiments of the present invention provide an image processing method and a mobile terminal, so as to solve the problem of insufficient three-dimensional effect of images.

In order to solve the above-mentioned technical problems, the present invention is achieved in that a kind of image processing method comprises:

Identify the face area in the original image;

blurring the face area to obtain a blurred image;

Brighten the highlight parts in the blurred image.

In the first aspect, an embodiment of the present invention also provides a mobile terminal, where the mobile terminal includes:

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

A blur processing module, configured to perform blur processing on the face area to obtain a blur image;

The brightening module is used to brighten the highlight parts in the blurred image.

In the second aspect, an embodiment of the present invention provides a mobile terminal, including a processor, a memory, and a computer program stored on the memory and operable on the processor, and the computer program is executed by the processor When implementing the steps of the image processing method described in any one of the above image processing methods.

In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the image processing method described in any one of the above-mentioned image processing methods can be implemented. The steps of the image processing method described above.

In the embodiment of the present invention, by brightening the highlight part, the region corresponding to the highlight part can form a sharp contrast and obvious difference between light and dark with other regions, thereby improving the three-dimensional effect of the image.

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 of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention , for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

Fig. 1 is a flow chart of the steps of an image processing method provided by an embodiment of the present invention;

Fig. 2 is a flow chart of steps of an image processing method provided by an embodiment of the present invention;

FIG. 3 is a structural block diagram of a mobile terminal provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of a hardware structure of a mobile terminal provided by an embodiment of the present invention.

Detailed ways

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.

Embodiment one

Referring to FIG. 1 , it shows a flow chart of steps of an image processing method according to an embodiment of the present invention, which may specifically include the following steps:

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

Wherein, the original image is an image that needs to be processed but has not been processed. Moreover, the original image may be a beautified image or an unbeautified image, which is not limited in this embodiment of the present invention. For example, the original image may be an image processed with a beautifying effect, or an image not processed with a beautifying effect.

Because in the process of image processing, it is necessary to process the face area in the image to improve the three-dimensional effect of the image. Therefore, when the mobile terminal detects the processing option triggered by the user, it needs to first identify the face area in the original image to obtain the face area in the original image, so that the recognized face area can be processed in subsequent steps .

Step 102, blurring the face area to obtain a blurred image.

After the mobile terminal recognizes the face area, it can perform blur processing on each pixel in the face area, so that each pixel in the face area is closer to each other, thereby producing a blur effect and obtaining a blurred image.

Specifically, the mobile terminal can take a certain pixel in the face area as the center of the circle, and according to the preset processing radius, average the parameter values of each pixel in the circular range, so that the parameter values of each pixel in the circular range Closer, to achieve the effect of blurring.

Further, the mobile terminal can use each pixel in the face area as the center of the circle, and perform blurring processing on the pixels in the circle range according to the same processing radius, and finally realize multiple blurring processes for each pixel in the face area. The second blurring process is performed to obtain the blurred image after blurring the face area.

It should be noted that, the mobile terminal may also use a normal distribution method to obtain weights to perform blurring processing on the recognized face area, or may use other methods to perform blurring processing, which is not limited in this embodiment of the present invention.

Step 103, brighten the highlight parts in the blurred image.

In order to improve the three-dimensionality of the original image, it is necessary to brighten the highlights in the blurred image, that is, to increase the brightness of the pixels corresponding to the highlights, so that the pixels with increased brightness can form a more obvious light and shade with other pixels. difference, thereby enhancing the stereoscopic effect of the blurred original image.

Specifically, the mobile terminal can first count the brightness of each pixel in the blurred image, and use pixels whose brightness parameter value is greater than a preset threshold as highlighted pixels, thereby obtaining multiple highlighted pixels, which can be obtained by combining multiple highlighted pixels Blur the highlights in the image. Then increase the brightness parameter value of each pixel corresponding to the highlight part, that is, increase the brightness parameter value of the highlight pixel, so that the brightness of the highlight pixel can be improved again on the original basis, and complete the improvement of the highlight part. Brightness, and then synthesize the brightened pixels with the original image, so that the difference between light and dark in the synthesized image is more obvious, thereby improving the three-dimensional effect of the original image.

To sum up, the embodiment of the present invention brightens the highlight parts, so that the region corresponding to the highlight parts can form a sharp contrast and obvious difference between light and dark with other regions, thereby improving the three-dimensional effect of the image.

Embodiment two

Referring to FIG. 2 , it shows a flow chart of the steps of an image processing method according to an embodiment of the present invention, which may specifically include the following steps:

Step 201, identifying the face area in the original image.

This step 201 is similar to step 101 and will not be repeated here.

Step 202, blurring the face area to obtain a blurred image.

In order to facilitate the extraction of pixels with higher brightness in the face area in the subsequent steps, the mobile terminal can decolorize the original image first, so that the original image is converted from color to a grayscale image including black, white and gray, and then the grayscale image Perform blur processing to obtain a blurred image. That is, the mobile terminal may first perform decolorization processing on the face area to obtain a grayscale image, and then perform blurring processing on the grayscale image to obtain a blurred image.

Specifically, the mobile terminal may perform decolorization processing on the recognized face area, so that color pixels in the face area formed by multiple color parameters are converted into grayscale pixels with different brightness, thereby obtaining a grayscale image.

Wherein, the grayscale pixel can be converted from the darkest black pixel to the brightest white pixel, and the brightness of the grayscale pixel can be determined according to the brightness of the pixel in the original image.

After decolorizing to obtain the grayscale image, the grayscale image may be blurred in a manner similar to step 102 to obtain a blurred image, which will not be repeated here.

Step 203, reducing the brightness of low-brightness pixels in the blurred image to obtain a high-brightness image.

Wherein, the low-brightness pixel is a pixel whose brightness is smaller than a first preset threshold. For example, the brightness of a pixel can be classified into levels ranging from 0 to 255, and the higher the brightness level of a pixel, the brighter the pixel. Therefore, the first preset threshold can be set to 200. Correspondingly, the mobile terminal can adjust the pixels whose luminance is less than 200, and reduce the luminance of the corresponding pixel to 0, so that a highlight image can be obtained.

Moreover, since different color spaces can be used to represent pixels in the blurred image, brightness of low-brightness pixels in the blurred image can be adjusted in different ways. For example, the mobile terminal can adjust the color scale of the blurred image to obtain a high-light image; or, the mobile terminal can also adjust the tone curve corresponding to the blurred image to obtain a high-light image. Of course, other methods can be used to adjust the brightness of low-brightness pixels in the blurred image. This embodiment of the present invention does not limit it.

Specifically, after acquiring the blurred image, the mobile terminal can acquire the brightness of each pixel in the blurred image, and judge whether the brightness of each pixel is less than the first preset threshold, if the color level of a certain blurred image is less than the first preset threshold threshold, it means that the pixel is a low-brightness pixel, and the brightness of the pixel needs to be adjusted to the minimum, then the pixel appears black, so that only pixels with brightness greater than the first preset threshold are included in the blurred image, and a high-light image is obtained.

Step 204, use the highlighted pixels in the highlighted image as the pixels corresponding to the highlighted parts.

Corresponding to the example of step 203, the brightness of the pixels may be classified into levels ranging from 0 to 255, and the highlighted pixels may be pixels whose brightness is greater than a second preset threshold. For example, the second preset threshold can be set to 235, then the highlighted pixels are pixels with brightness greater than 235.

After the mobile terminal obtains the highlighted image, it can judge the brightness of each pixel in the highlighted image. When the brightness of a certain pixel is greater than the second preset threshold, the pixel can be determined as a highlighted pixel, thereby obtaining multiple The highlighted pixels are finally combined to obtain a highlight part in the highlight image by combining a plurality of highlight pixels, so that the highlight part can be adjusted in a subsequent step.

Step 205, increasing brightness of highlighted pixels.

After determining the highlight part in the highlight image, the mobile terminal can brighten the highlight part, that is, increase the brightness of the highlight pixel in the highlight image, and after the adjustment is completed, the adjusted highlight image and The original image is synthesized so that the adjusted highlighted pixels can form a relatively obvious difference with other pixels in the original image, thereby improving the stereoscopic effect of the original image.

Moreover, the mobile terminal can detect the adjustment operation triggered by the user, and when it detects the adjustment operation triggered by the user, it can brighten the highlight part according to the adjustment operation, so that the adjusted brightness can be controlled according to the adjustment operation triggered by the user, and then It is more in line with the needs of users.

In addition, corresponding to step 203, since the brightness of the low-brightness pixels in the blurred image can be adjusted to the minimum in different ways, the brightness of the high-brightness pixels in the high-brightness image can also be adjusted up in different ways.

Optionally, the mobile terminal can increase the brightness parameter value of the highlighted pixel in the hue-saturation-brightness color space; or, the mobile terminal can also increase the red, green and blue values of the highlighted pixel in the red-green-blue color space. The parameter value of , so that the brightness level of the highlighted pixel is improved.

To sum up, the image processing method provided by the embodiment of the present invention obtains a blurred image by identifying the face area in the original image and performing blurring processing on the face area, and finally brightens the highlight parts in the blurred image. The blurred image is obtained by processing the original image, and then the highlight parts in the blurred image are brightened, so that the area corresponding to the highlight part can form a sharper contrast with other areas, and a more obvious difference between light and shade is obtained, thus solving the original problem. The problem of insufficient three-dimensionality of the image improves the three-dimensionality of the original image.

Further, by reducing the brightness of the low-brightness pixels in the blurred image to obtain a high-light image, and increasing the brightness of the high-brightness pixels in the high-light image, the high-light parts in the blurred image can be more accurately determined, and then the brightness of the high-brightness pixels can be improved. accuracy.

Furthermore, by adjusting the color scale of the blurred image or adjusting the tone curve corresponding to the blurred image, the brightness of the low-brightness pixels in the blurred image can be adjusted in various ways to obtain a high-light image, which improves the flexibility of adjusting the blurred image.

Further, the brightness of the highlight image is adjusted through different color spaces, thereby increasing the way of adjusting the brightness and improving the flexibility of adjusting the brightness.

Furthermore, by performing decolorization processing on the face area to obtain a grayscale image, and then blurring the grayscale image to obtain a blurred image, the workload of blurring processing on the mobile terminal can be reduced, and only a small number of parameter values need to be processed. The fuzzy image can be obtained through calculation, and the efficiency of obtaining the fuzzy image is improved.

Further, according to the adjustment operation triggered by the user, the brightness of the highlight image is adjusted so that the adjusted brightness is more in line with the user's expectation, thereby improving user stickiness.

Embodiment three

Referring to FIG. 3 , it shows a structural block diagram of a mobile terminal according to an embodiment of the present invention, which may specifically include:

Recognition module 301, for recognizing the face region in the original image;

The blur processing module 302 is used to perform blur processing on the face area to obtain a blur image;

The brightening module 303 is configured to brighten the highlight parts in the blurred image.

Optionally, the brightening module 303 includes:

The reducing sub-module is used to reduce the brightness of low-brightness pixels in the blurred image to obtain a high-brightness image, and the low-brightness pixels are pixels whose brightness is smaller than a first preset threshold.

A determining submodule, configured to use the highlight pixel in the highlight image as the pixel corresponding to the highlight part, where the highlight pixel is a pixel whose brightness is greater than a second preset threshold;

The increasing sub-module is used to increase the brightness of the highlighted pixel.

Optionally, the lowering submodule includes:

a first adjustment unit, configured to adjust the color scale of the blurred image to obtain the highlight image;

Alternatively, the second adjustment unit is configured to adjust the tone curve corresponding to the blurred image to obtain the highlight image.

Optionally, the improved submodule includes:

The first improving unit is used to increase the parameter value of the brightness of the highlighted pixel in the hue-saturation-brightness color space;

Or, the second improving unit is configured to increase the red, green and blue parameter values of the highlighted pixel in the red-green-blue color space.

Optionally, the obfuscation processing module 302 includes:

The decolorization sub-module is used to decolorize the face area to obtain a grayscale image;

The fuzzy sub-module is used to perform fuzzy processing on the grayscale image to obtain the fuzzy image.

Optionally, the brightening module 303 includes:

The detection sub-module is used to detect the adjustment operation triggered by the user;

The brightening sub-module is configured to brighten the highlight part according to the adjustment operation when it is detected that the user triggers the adjustment operation.

The mobile terminal provided by the embodiment of the present invention can implement various processes implemented by the mobile terminal in the method embodiments shown in FIG. 1 to FIG. 2 , and details are not repeated here to avoid repetition.

To sum up, the mobile terminal provided by the embodiment of the present invention, by brightening the highlight part, enables the area corresponding to the highlight part to form a sharp contrast and obvious difference between light and dark with other areas, thereby improving the three-dimensional effect of the image. .

4 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention, the mobile terminal 400 includes but not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, and a display unit 406 , a user input unit 407 , an interface unit 408 , a memory 409 , a processor 410 , and a power supply 411 and other components. Those skilled in the art can understand that the structure of the mobile terminal shown in FIG. 4 does not constitute a limitation on the mobile terminal, and the mobile terminal may include more or less components than shown in the figure, or combine some components, or different components layout. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle terminal, a wearable device, and a pedometer.

Wherein, the processor 410 is used to identify the face area in the original image;

A processor 410, configured to perform blurring processing on the face area to obtain a blurred image;

The processor 410 is configured to brighten highlight parts in the blurred image.

To sum up, the mobile terminal provided by the embodiment of the present invention obtains a blurred image by identifying the face area in the original image and blurring the face area, and finally brightens the highlight part in the blurred image. The blurred image is obtained by processing the original image, and then the highlight parts in the blurred image are brightened, so that the area corresponding to the highlight part can form a sharper contrast with other areas, and a more obvious difference between light and shade is obtained, thus solving the original problem. The problem of insufficient three-dimensionality of the image improves the three-dimensionality of the original image.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 401 can be used for receiving and sending signals during sending and receiving information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 410; Uplink data is sent to the base station. Generally, the radio frequency unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 401 can also communicate with the network and other devices through a wireless communication system.

The mobile terminal provides users with wireless broadband Internet access through the network module 402, such as helping users send and receive emails, browse web pages, and access streaming media.

The audio output unit 403 may convert audio data received by the radio frequency unit 401 or the network module 402 or stored in the memory 409 into an audio signal and output as sound. Also, the audio output unit 403 can also provide audio output related to a specific function performed by the mobile terminal 400 (eg, call signal reception sound, message reception sound, etc.). The audio output unit 403 includes a speaker, a buzzer, a receiver, and the like.

The input unit 404 is used for receiving audio or video signals. The input unit 404 can include a graphics processing unit (Graphics Processing Unit, GPU) 4041 and a microphone 4042, and the graphics processing unit 4041 is used for still pictures or video images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The data is processed. The processed image frames may be displayed on the display unit 406 . The image frames processed by the graphics processor 4041 may be stored in the memory 409 (or other storage media) or sent via the radio frequency unit 401 or the network module 402 . The microphone 4042 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 401 for output in the case of a phone call mode.

The mobile terminal 400 also includes at least one sensor 405, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 4061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 4061 and the display panel 4061 when the mobile terminal 400 moves to the ear / or backlighting. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is still, and can be used to identify the posture of mobile terminals (such as horizontal and vertical screen switching, related games, etc.) , magnetometer posture calibration), vibration recognition-related functions (such as pedometer, knocking), etc.; the sensor 405 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, Infrared sensors, etc., will not be repeated here.

The display unit 406 is used to display information input by the user or information provided to the user. The display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), or the like.

The user input unit 407 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the mobile terminal. Specifically, the user input unit 407 includes a touch panel 4071 and other input devices 4072 . The touch panel 4071, also referred to as a touch screen, can collect touch operations of the user on or near it (for example, the user uses any suitable object or accessory such as a finger or a stylus on the touch panel 4071 or near the touch panel 4071). operate). The touch panel 4071 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 For the processor 410, receive the command sent by the processor 410 and execute it. In addition, the touch panel 4071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 4071 , the user input unit 407 may also include other input devices 4072 . Specifically, other input devices 4072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

Furthermore, the touch panel 4071 can be covered on the display panel 4061, and when the touch panel 4071 detects a touch operation on or near it, it will be sent to the processor 410 to determine the type of the touch event, and then the processor 410 will The type of event provides a corresponding visual output on the display panel 4061 . Although in FIG. 4, the touch panel 4071 and the display panel 4061 are used as two independent components to realize the input and output functions of the mobile terminal, in some embodiments, the touch panel 4071 and the display panel 4061 can be integrated. The implementation of the input and output functions of the mobile terminal is not specifically limited here.

The interface unit 408 is an interface for connecting an external device to the mobile terminal 400 . For example, an external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. The interface unit 408 can be used to receive input from an external device (for example, data information, power, etc.) transfer data between devices.

The memory 409 can be used to store software programs as well as various data. The memory 409 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.); Data created by the use of mobile phones (such as audio data, phonebook, etc.), etc. In addition, the memory 409 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, flash memory device, or other volatile solid-state storage devices.

The processor 410 is the control center of the mobile terminal, which uses various interfaces and lines to connect various parts of the entire mobile terminal, by running or executing software programs and/or modules stored in the memory 409, and calling data stored in the memory 409 , execute various functions of the mobile terminal and process data, so as to monitor the mobile terminal as a whole. The processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc., and the modem The processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 410 .

The mobile terminal 400 can also include a power supply 411 (such as a battery) for supplying power to various components. Preferably, the power supply 411 can be logically connected to the processor 410 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. and other functions.

In addition, the mobile terminal 400 includes some functional modules not shown, which will not be repeated here.

Preferably, the embodiment of the present invention also provides a mobile terminal, including a processor 410, a memory 409, a computer program stored in the memory 409 and operable on the processor 410, when the computer program is executed by the processor 410 Each process of the above embodiment of the image processing method can achieve the same technical effect, so in order to avoid repetition, details are not repeated here.

The embodiment of the present invention also provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the above-mentioned image processing method embodiment is realized, and the same technology can be achieved. Effect, in order to avoid repetition, will not repeat them here. Wherein, the computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in various embodiments of the present invention.

Embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementations, and the above-mentioned specific implementations are only illustrative, rather than restrictive, and those of ordinary skill in the art will Under the enlightenment of the present invention, without departing from the gist of the present invention and the protection scope of the claims, many forms can also be made, all of which belong to the protection of the present invention.

Claims (10)

1. A kind of image processing method, is applied to mobile terminal, is characterized in that, described method comprises: Identify the face area in the original image; blurring the face area to obtain a blurred image; Brighten the highlight parts in the blurred image. 2. The method according to claim 1, wherein the highlighting of the blurred image comprises: reducing the brightness of low-brightness pixels in the blurred image to obtain a high-brightness image, and the low-brightness pixels are pixels whose brightness is less than a first preset threshold. Using a highlight pixel in the highlight image as a pixel corresponding to the highlight part, the highlight pixel is a pixel whose brightness is greater than a second preset threshold; Increase the brightness of the highlighted pixels. 3. The method according to claim 2, wherein the reducing the brightness of low-brightness pixels in the blurred image to obtain a high-light image comprises: adjusting the color scale of the blurred image to obtain the highlight image; Alternatively, the tone curve corresponding to the blurred image is adjusted to obtain the highlight image. 4. The method according to claim 2, wherein said increasing the brightness of said highlighted pixel comprises: Improve the parameter value of the brightness of the highlighted pixel in the hue-saturation-brightness color space; Or, increase the red, green and blue parameter values of the highlighted pixel in the red-green-blue color space. 5. A mobile terminal, characterized in that the mobile terminal comprises: A recognition module is used to recognize the face area in the original image; A blur processing module, configured to perform blur processing on the face area to obtain a blur image; The brightening module is used to brighten the highlight parts in the blurred image. 6. The mobile terminal according to claim 5, wherein the highlighting module comprises: The reducing sub-module is used to reduce the brightness of low-brightness pixels in the blurred image to obtain a high-brightness image, and the low-brightness pixels are pixels whose brightness is smaller than a first preset threshold. A determining submodule, configured to use a highlight pixel in the highlight image as a pixel corresponding to the highlight part, where the highlight pixel is a pixel whose brightness is greater than a second preset threshold; The improving sub-module is used to increase the brightness of the highlighted pixel. 7. The mobile terminal according to claim 6, wherein the lowering submodule comprises: a first adjustment unit, configured to adjust the color scale of the blurred image to obtain the highlight image; Alternatively, the second adjustment unit is configured to adjust the tone curve corresponding to the blurred image to obtain the highlight image. 8. The mobile terminal according to claim 6, wherein the improving submodule comprises: The first improving unit is used to increase the parameter value of the brightness of the highlighted pixel in the hue-saturation-brightness color space; Or, the second improving unit is configured to increase the red, green and blue parameter values of the highlighted pixel in the red-green-blue color space. 9. A mobile terminal, characterized by comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, when the computer program is executed by the processor, the The steps of the image processing method described in any one of claims 1 to 4. 10. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the image according to any one of claims 1 to 4 is realized The steps of the processing method.