CN105744173A - A method, device and mobile terminal for distinguishing front and rear areas of an image - Google Patents

Abstract

The embodiment of the invention discloses a method and a device for distinguishing foreground and background areas of an image and a mobile terminal. The method comprises the following steps: when the situation that the scene area events before and after the image distinguishing are triggered is monitored, controlling a screen to supplement light; controlling a camera to capture an image in a screen light supplementing process; acquiring brightness data of the image; and performing region division on the image according to the brightness data, and determining a foreground region and a background region according to the height relation between the brightness of each region. By adopting the technical scheme, the embodiment of the invention can distinguish the foreground from the background by utilizing the different illumination of the light received by the shot objects with different distances during screen light supplement under the condition of not changing the original hardware configuration of the mobile terminal, has small calculated amount and high response speed, is convenient for a user to shoot the self-timer photo with the depth of field effect, and is particularly suitable for distinguishing the foreground from the background in a low-light self-timer scene.

Description

A method, device and mobile terminal for distinguishing front and rear areas of an image

technical field

Embodiments of the present invention relate to the technical field of photographing, and in particular, to a method, device and mobile terminal for distinguishing front and rear background areas of an image.

Background technique

At present, the camera has become the standard configuration of most mobile terminals. With the continuous improvement of the performance of the camera, the camera function in the mobile terminal is also becoming more and more powerful, which brings convenience to users who like to take pictures.

During the shooting process, in order to highlight the subject, you can use shooting techniques to take photos with a clear foreground (subject) and blurred background (background) with depth-of-field effects. This shooting technique is especially suitable for portrait shooting. Now, many mobile terminal users like to use the front camera on the mobile terminal to take selfies, and hope to obtain the above-mentioned selfie photos with depth of field effects, but in order to obtain photos with depth of field effects, it is necessary to calculate the depth of field to distinguish the front and back of the image. , generally achieved by laser focusing or dual cameras. However, the hardware configuration of existing mobile terminals such as mobile phones and tablet computers cannot calculate the depth of field, so the foreground and the background cannot be distinguished when shooting, and thus self-portraits with depth of field effects cannot be taken. In order to obtain a selfie photo with a depth of field effect, the user can only take a photo with a normal effect, and perform depth of field processing on the image in a later stage, which is complicated to operate and brings inconvenience to mobile terminal users.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a method, device and mobile terminal for distinguishing the foreground and foreground areas of an image, so as to solve the problem that the camera of the mobile terminal cannot distinguish the foreground and foreground areas when taking pictures.

In the first aspect, an embodiment of the present invention provides a method for distinguishing front and rear background areas of an image, including:

When it is detected that the event of distinguishing the foreground and foreground areas of the image is triggered, control the screen to fill in the light;

Control the camera to capture images during the process of screen fill light;

Acquiring brightness data of the image;

The image is divided into regions according to the brightness data, and a foreground region and a background region are determined according to the high-low relationship between the brightness of each region.

In the second aspect, an embodiment of the present invention provides a device for distinguishing front and rear background areas of an image, including:

The supplementary light control module is used to control the screen to perform supplementary light when it is detected that the event of distinguishing the foreground and foreground areas of the image is triggered;

The image capture control module is used to control the camera to capture images during the screen fill light process;

A brightness data acquisition module, configured to acquire brightness data of the image;

an area division module, configured to perform area division on the image according to the brightness data;

The foreground and foreground area determination module is used to determine the foreground area and the background area according to the relationship between the brightness of each area.

In a third aspect, an embodiment of the present invention provides a mobile terminal, and the mobile terminal integrates the device for distinguishing the front and rear background areas of an image in the embodiment of the present invention.

The solution for distinguishing the foreground and foreground areas of the image provided in the embodiment of the present invention, when the event of distinguishing the foreground and foreground areas of the image is detected, the screen is controlled to fill in the light and the camera is controlled to capture the image, and the image is divided into regions according to the brightness data of the image. Finally, the foreground area and the background area are determined according to the relationship between the brightness of each area. By adopting the above technical solution, without changing the original hardware configuration of the mobile terminal, it is possible to distinguish the foreground and the background by using the difference in the illuminance of the light received by the subject at different distances when the screen is supplemented with light, and the amount of calculation is small , fast response speed, convenient for users to take selfie photos with depth of field effect, this solution is especially suitable for distinguishing front and back scenes in low-light selfie scenes.

Description of drawings

FIG. 1 is a schematic flowchart of a method for distinguishing front and rear background areas of an image provided by Embodiment 1 of the present invention;

FIG. 2 is a schematic flowchart of a method for distinguishing front and rear background areas of an image provided by Embodiment 2 of the present invention;

FIG. 3 is a schematic flowchart of a method for distinguishing front and rear background areas of an image provided by Embodiment 3 of the present invention;

FIG. 4 is a structural block diagram of an apparatus for distinguishing front and rear background areas of an image according to Embodiment 4 of the present invention.

detailed description

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the steps as sequential processing, many of the steps may be performed in parallel, concurrently, or simultaneously. Additionally, the order of steps may be rearranged. The process may be terminated when its operations are complete, but may also have additional steps not included in the figure. The processing may correspond to a method, function, procedure, subroutine, subroutine, or the like.

Embodiment one

Fig. 1 is a schematic flowchart of a method for distinguishing the foreground and foreground areas of an image provided by Embodiment 1 of the present invention. The method can be executed by a device for distinguishing the foreground and foreground regions of an image, wherein the device can be implemented by software and/or hardware, and generally can be integrated in the mobile terminal. As shown in Figure 1, the method includes:

Step 101, when it is detected that the event of distinguishing the foreground and foreground areas of the image is triggered, control the screen to perform supplementary light.

Exemplarily, the mobile terminal in this embodiment may specifically be a terminal device configured with a display screen, such as a mobile phone, a tablet computer, and a digital camera.

Exemplarily, detecting that the event of distinguishing the foreground and foreground areas of the image is triggered specifically refers to detecting that the user actively triggers the event of distinguishing the foreground and foreground areas of the image by pressing a button, for example, when the camera in the mobile terminal (specifically, it can be fixed on the front of the mobile terminal The front-facing camera, that is, the front-facing camera on the same side as the screen; it can also be a rotatable camera whose current position is on the front of the mobile terminal) is turned on, and the user actively triggers the event of distinguishing the foreground and foreground areas of the image by pressing the button to distinguish the foreground and foreground. ; It is detected that the event of distinguishing the foreground and foreground areas of the image is triggered. Specifically, it may also refer to the detection that the mobile terminal automatically triggers the event of distinguishing the foreground and foreground areas of the image. When it is detected that the user presses the camera button, an event for distinguishing the foreground and foreground areas of the image can be automatically triggered.

Exemplarily, controlling the screen to fill in light specifically refers to filling in light for the camera by controlling the screen to display an appropriate brightness, that is to say, first determine the screen brightness according to the screen brightness setting rules, and then control the screen to perform fill-in light at the determined screen brightness. Light. The specific screen brightness setting rules are not limited. For example, the ambient light sensor may be used to perform light metering, and the brightness of the screen may be determined according to the ambient light brightness included in the light metering result. Preferably, when the ambient light brightness is lower than the preset first brightness threshold, it can indicate that the current shooting environment is relatively dark, and the screen brightness can be determined according to the preset inverse relationship, that is, the lower the ambient brightness, the higher the screen brightness. The benefits of such settings The reason is that it can provide reasonable supplementary light to the subject, which is helpful for the subsequent determination of the foreground and foreground, and after the foreground and foreground are determined, it can directly generate a photo with a better supplementary light effect and a depth of field effect. Further, when the brightness of the ambient light is higher than the preset second brightness threshold, it can indicate that the current environment is brighter, and the screen brightness can be determined according to the preset proportional relationship, that is, the higher the ambient brightness, the higher the screen brightness. The advantage of this setting is that , since the shooting environment itself is relatively bright, only by providing higher brightness fill light can it be easy to distinguish the light receiving conditions of the subjects at different distances, which can improve the accuracy of distinguishing the front and back scenes. Wherein, the first brightness threshold and the second brightness threshold may be the same or different, and may be set freely.

Step 102, controlling the camera to capture images during the process of screen fill light.

Exemplarily, the camera in this embodiment may specifically be a front-facing camera fixed on the front of the mobile terminal (on the same side as the screen), or a rotatable camera whose current position is on the front of the mobile terminal.

Step 103, acquiring brightness data of the image.

Exemplarily, the brightness data may specifically include data related to the distribution of brightness values, such as the brightness value of each pixel in the image, brightness histogram data, and the like.

Step 104: Divide the image into regions according to the brightness data, and determine the foreground region and the background region according to the high-low relationship between the brightness of each region.

Exemplarily, in the process of screen fill light, the illuminance of light received by objects at different distances is different, and the image is captured during the screen fill light process, so the brightness of different positions in the image can be It reflects the distance between the subject corresponding to the corresponding position and the screen. Under normal circumstances, because light will diverge due to the influence of dust and other factors in the air, the closer the subject is to the screen (equivalent to the light source), the higher the brightness in the image will be, while the farther the subject is from the screen, the brightness will be higher in the image. The lower the brightness appears in the image. Therefore, the image can be divided into regions according to the brightness of different positions in the image, and the region with higher brightness is determined as the foreground region, and the region with lower brightness is determined as the background region, which is convenient for subsequent applications.

Preferably, performing region division on the image according to the brightness data may specifically include: performing region division on the image according to brightness distribution related data in the brightness data and preset partition rules. The preset partition rules can be adjusted according to actual conditions, and are not specifically limited in this embodiment. For example, pixels with similar brightness values and concentrated occurrence can be divided into the same area, that is, for two pixels with similar brightness values, the positional relationship between pixels and whether there is a gap between them can be considered when dividing. There are other pixels with far different brightness values from these two pixels; the maximum brightness difference allowed in the same area can be set, for example, the difference between the highest brightness value minus the lowest brightness value contained in this area should be within the preset maximum brightness within the difference range.

It should be noted that the designer can obtain the brightness of objects at different distances in the same environment brightness after being illuminated by experiments through experiments, and form a corresponding relationship between brightness and distance (different screen brightness corresponds to different brightness and distance). The corresponding relationship between distance, different ambient brightness corresponds to different brightness and distance), using the above-mentioned corresponding relationship between brightness and distance, the distance can be inversely deduced according to the brightness after supplementing light in practical applications, and in the design of partition rules You can refer to the corresponding relationship between brightness and distance above for design. For example, when designing partition rules, if you want to divide two subjects with a distance difference of A (such as 20 cm) into the same area, refer to the above-mentioned corresponding relationship between brightness and distance, and the two subjects with a distance difference of A If the brightness difference value of the object is B, then the above-mentioned maximum brightness difference allowed in the same area can be set to B.

In the method for distinguishing the foreground and foreground areas of an image provided by Embodiment 1 of the present invention, when the event of distinguishing the foreground and foreground areas of an image is detected, the screen is controlled to fill in light and the camera is controlled to capture the image, and the image is divided into regions according to the brightness data of the image. Finally, the foreground area and the background area are determined according to the relationship between the brightness of each area. By adopting the above technical solution, without changing the original hardware configuration of the mobile terminal, it is possible to distinguish the foreground and the background by using the difference in the illuminance of the light received by the subject at different distances when the screen is supplemented with light, and the amount of calculation is small , fast response, convenient for users to take selfie photos with depth of field effect, this method is especially suitable for distinguishing front and back scenes in low-light selfie scenes.

Embodiment two

Fig. 2 is a schematic flow chart of a method for distinguishing the foreground and foreground areas of an image provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. The high and low relationship between determine the foreground area and the background area" optimization is: determine the brightness value of each area; sort each area according to the high and low relationship of the brightness value of each area; determine the area with the highest brightness value as the foreground area, and the remaining The area is determined as the background area.

Correspondingly, the method of this embodiment includes the following steps:

Step 201, when it is detected that the event of distinguishing the foreground and foreground areas of the image is triggered, control the screen to perform supplementary light.

Step 202, controlling the camera to capture images during the process of screen fill light.

Step 203, acquire brightness data of the image, and divide the image into regions according to the brightness data.

Step 204, determine the brightness value of each area.

Exemplarily, for each area, an average value of brightness values of all pixels in the current area may be calculated, and the average value may be used as the brightness value of the current area.

Step 205, sort the regions according to the relationship between the brightness values of the regions.

Exemplarily, the regions may be sorted in descending order of brightness values.

Step 206. Determine the region with the highest brightness value as the foreground region.

Preferably, determining the area with the highest brightness value as the foreground area may specifically include: calculating the area of the first area with the highest brightness value; identified as the foreground area. Further, the method may further include: if not, sequentially calculating the areas of the areas behind the first area until the calculated area of the second area is higher than the preset area threshold, then determining the second area as the foreground area. The advantage of this setting is that when taking a selfie, the foreground is generally the user's face, and there may be interfering light sources such as street lights in the background. If the area with the highest brightness is directly determined as the foreground area, misjudgment may occur. For selfies, the area occupied by human face images is usually large, while interfering light sources such as street lights are usually far away from the camera, and the area occupied is usually small, which will be lower than the preset area threshold. Interference during the classification process, improve accuracy.

Step 207, determine the remaining area as the background area.

Preferably, after the area whose brightness value ranks first and whose area is higher than the preset area threshold is determined as the foreground area, other areas including interfering light sources are determined as the background area, so as to accurately distinguish the foreground and the foreground.

In the method for distinguishing the foreground and foreground regions of an image provided by Embodiment 2 of the present invention, after determining the brightness values of each region, the regions are sorted according to the relationship between the brightness values of each region, and the region with the highest brightness value is determined as the foreground region, Determining the remaining area as the background area can further improve the accuracy of distinguishing the foreground area of the image.

Embodiment three

Fig. 3 is a schematic flowchart of a method for distinguishing the foreground and foreground areas of an image provided by Embodiment 3 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, a step is added at the end: Areas are blurred and a photo is generated from the processed image.

Correspondingly, the method of this embodiment includes the following steps:

Step 301 , when it is detected that the event of distinguishing the foreground and foreground areas of the image is triggered, control the screen to perform supplementary light.

Step 302, controlling the camera to capture images during the process of screen fill light.

Step 303, acquire brightness data of the image, and divide the image into regions according to the brightness data.

Step 304, determine the brightness value of each region, and sort the regions according to the relationship between the brightness values of each region.

Step 305. Calculate the area of the region with the highest current brightness value.

Exemplarily, when this step is performed for the first time, the area with the highest current brightness value is the first area in the above embodiment.

Step 306 , judging whether the area of the region with the highest current brightness value is higher than the preset area threshold, if not, execute step 307 ; if yes, execute step 308 .

Step 307 , take the next area in the sorting as the new area with the highest current brightness value, and return to step 305 .

Step 308 , determine the region with the highest current brightness value as the foreground region, and execute step 309 .

Step 309, determine the remaining area as the background area.

Step 310, perform blur processing on the background area, and generate a photo according to the processed image.

Exemplarily, the background area is blurred, the clear foreground area is reserved, and the processed image is encoded to generate a photo and provided to the user. The photo at this time is a selfie with a depth of field effect, satisfying the user need. Wherein, the process of blurring the background area may refer to existing image blurring techniques, such as Gaussian blurring, which is not specifically limited in this embodiment.

Preferably, as described in Embodiment 1 of the present invention, when the brightness of the ambient light is higher than the preset second brightness threshold, the brightness of the screen can be determined according to the preset proportional relationship, and the image at this time will affect the photographing effect due to overexposure. In this case, the foreground area and the background area can be recorded, the brightness of the screen can be re-determined, the screen can be controlled to fill in the light (or stop the light) at the re-determined screen brightness, and the camera can be controlled to capture the second image. The foreground area and the background area of the second image are divided into regions to obtain the foreground area and the background area of the second image, and the background area in the second image is blurred, and a selfie is generated according to the processed second image photo. At this time, the exposure of the selfie photo is reasonable, and the photo effect is ideal, which can meet the needs of users.

In the method for distinguishing the foreground and foreground areas of an image provided by Embodiment 3 of the present invention, after the foreground area and the background area are determined, the background area is blurred, and a photo is generated according to the processed image, and the user can easily take pictures with a depth of field effect selfie photos to meet user needs and improve user experience.

Embodiment Four

Fig. 4 is a structural block diagram of a device for distinguishing the foreground and foreground areas of an image provided in Embodiment 4 of the present invention. The device can be implemented by software and/or hardware, and is generally integrated in a mobile terminal. To distinguish the foreground and foreground regions of the image. As shown in FIG. 4 , the device includes a supplementary light control module 401 , an image capture control module 402 , a brightness data acquisition module 403 , an area division module 404 and a foreground and background area determination module 405 .

Among them, the supplementary light control module 401 is used to control the screen to perform supplementary light when it is detected that the event of distinguishing the foreground and foreground areas of the image is triggered; the image capture control module 402 is used to control the camera to capture images during the screen supplementary light process; The brightness data acquisition module 403 is used to obtain the brightness data of the image; the region division module 404 is used to divide the image into regions according to the brightness data; the front and back background region determination module 405 is used to determine the brightness of each region according to The high-low relationship between determines the foreground and background regions.

The device for distinguishing the foreground and foreground areas of an image provided by Embodiment 4 of the present invention can be distinguished by using the difference in the illuminance of light received by objects at different distances when the screen is supplemented with light without changing the original hardware configuration of the mobile terminal. Foreground and background, with a small amount of calculation and fast response, it is convenient for users to take selfie photos with depth of field effects. This solution is especially suitable for distinguishing front and back scenes in low-light selfie scenes.

On the basis of the above embodiments, the region division module may be specifically configured to: perform region division on the image according to brightness distribution related data in the brightness data and preset partition rules.

On the basis of the above embodiments, the foreground and foreground area determination module may include a brightness value determination unit, an area sorting unit, and a foreground and foreground area determination unit. Wherein, the brightness value determination unit is used to determine the brightness value of each region; the region sorting unit is used to sort the regions according to the relationship between the brightness values of the regions; The area with the highest brightness value is determined as the foreground area, and the remaining area is determined as the background area.

On the basis of the above embodiments, the foreground and foreground area determination unit may include an area calculation subunit and a foreground area determination subunit. Among them, the area calculation subunit is used to calculate the area of the first region with the highest brightness value; the foreground region determination subunit is used to judge whether the area of the first region is higher than the preset area threshold, and if so, the The first area is determined as a foreground area.

On the basis of the above-mentioned embodiments, the area calculation subunit can also be configured to sequentially calculate the area of the area behind the first area when it is judged that the area of the first area is not higher than the preset area threshold. area until the calculated area of the second area is higher than the preset area threshold; the foreground area determination subunit can also be used to calculate the area of the second area higher than the preset area in the area calculation subunit When the area threshold is greater than the area threshold, the second area is determined as the foreground area.

On the basis of the above embodiments, the device may further include: a photo generation module, used to blur the background area after the foreground area and the background area are determined according to the high-low relationship between the brightness of each area processing, and generate photos from the processed images.

On the basis of the above embodiments, the camera is a front camera or a rotatable camera whose current position is in front of the mobile terminal.

Embodiment five

Embodiment 5 of the present invention provides a mobile terminal. The mobile terminal integrates the device for distinguishing the foreground and foreground areas of an image provided in the embodiment of the present invention, and can distinguish the foreground and foreground areas of an image by executing the method for distinguishing the foreground and foreground areas of an image.

Exemplarily, the mobile terminal in this embodiment may specifically be a terminal device configured with a display screen, such as a mobile phone, a tablet computer, and a digital camera.

When a user uses the mobile terminal in this embodiment to take a selfie, the mobile terminal can quickly and automatically distinguish between the foreground and the foreground, and can take photos with a depth of field effect to meet user needs and improve user experience.

The device for distinguishing the foreground and background regions of an image and the mobile terminal provided in the above embodiments can execute the method for distinguishing the foreground and foreground regions of an image provided in any embodiment of the present invention, and have corresponding functional modules and beneficial effects for executing the method. For technical details not exhaustively described in the foregoing embodiments, reference may be made to the method for distinguishing the foreground and foreground regions of an image provided in any embodiment of the present invention.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (15)

1. distinguish the method for scene area before and after image for one kind, it is characterised in that including:

The scene area event before and after differentiation image that monitors when being triggered, controls screen and carries out light filling；

Control photographic head in screen light filling process, catch image；

Obtain the brightness data of described image；

According to described brightness data, described image carried out region division, and determine foreground area and background region according to the height relation between the brightness in each region.

2. method according to claim 1, it is characterised in that described according to described brightness data, described image is carried out region division, including:

According to the Luminance Distribution situation related data in described brightness data and default zoning ordinance, described image is carried out region division.

3. method according to claim 1, it is characterised in that described determine foreground area and background region according to the height relation between the brightness in each region, including:

Determine the brightness value in each region；

According to the height relation of the brightness value in described each region, described each region is ranked up；

Region the highest for brightness value is defined as foreground area, remaining area is defined as background region.

4. method according to claim 3, it is characterised in that described region the highest for brightness value is defined as foreground area, including:

Calculate the area of the highest first area of brightness value；

Judge that whether the area of described first area is higher than preset area threshold value, is if so, then defined as foreground area by described first area.

5. method according to claim 4, it is characterised in that whether the described area judging described first area is higher than preset area threshold value, if so, then described first area is defined as foreground area, also includes:

If it is not, then sequentially calculate the area coming region below, described first area, until when the area calculating second area is higher than described preset area threshold value, described second area being defined as foreground area.

6. the method according to any one of claim 1-5, it is characterised in that described determine foreground area and background region according to the height relation between the brightness in each region after, also include:

Described background region is made Fuzzy Processing, and generates photo according to the image after processing.

7. the method according to any one of claim 1-5, it is characterised in that described photographic head is the rotatable camera that front-facing camera or current location are in mobile terminal front.

8. distinguish the device of scene area before and after image for one kind, it is characterised in that including:

Light filling control module, for monitor differentiation image before and after scene area event be triggered time, control screen carry out light filling；

Picture catching controls module, is used for controlling photographic head and catches image in screen light filling process；

Brightness data acquisition module, for obtaining the brightness data of described image；

Region divides module, for described image being carried out region division according to described brightness data；

Front and back scene area determines module, for determining foreground area and background region according to the height relation between the brightness in each region.

9. device according to claim 8, it is characterised in that described region divide module specifically for:

According to the Luminance Distribution situation related data in described brightness data and default zoning ordinance, described image is carried out region division.

10. device according to claim 8, it is characterised in that described front and back scene area determines that module includes:

Brightness value determines unit, for determining the brightness value in each region；

Region ordering unit, described each region is ranked up by the height relation for the brightness value according to described each region；

Front and back scene area determines unit, for region the highest for brightness value is defined as foreground area, remaining area is defined as background region.

11. device according to claim 10, it is characterised in that described front and back scene area determines that unit includes:

Areal calculation subelement, for calculating the area of the highest first area of brightness value；

Foreground area determines subelement, and whether the area for judging described first area is higher than preset area threshold value, if so, then described first area is defined as foreground area.

12. device according to claim 11, it is characterised in that

Described areal calculation subelement, is additionally operable to, when judging that the area of described first area is not higher than preset area threshold value, sequentially calculate the area coming region below, described first area, until calculating the area of second area higher than described preset area threshold value；

Described foreground area determines subelement, is additionally operable to, when described areal calculation subelement calculates the area of second area higher than described preset area threshold value, described second area is defined as foreground area.

13. the device described in-12 any one according to Claim 8, it is characterised in that also include:

Photo generation module, for described determine foreground area and background region according to the height relation between the brightness in each region after, described background region is made Fuzzy Processing, and generates photo according to the image after processing.

14. the device described in-12 any one according to Claim 8, it is characterised in that described photographic head is the rotatable camera that front-facing camera or current location are in mobile terminal front.

15. a mobile terminal, it is characterised in that described mobile terminal is integrated with the device of scene area before and after the differentiation image as described in any one of claim 8-14.