WO2019095096A1

WO2019095096A1 - Method for photographic processing and photographing terminal

Info

Publication number: WO2019095096A1
Application number: PCT/CN2017/110815
Authority: WO
Inventors: 朱斌杰
Original assignee: 深圳传音通讯有限公司
Priority date: 2017-11-14
Filing date: 2017-11-14
Publication date: 2019-05-23

Abstract

Provided are a method for photographic processing and a photographing terminal. The method comprises: determining that a current image of a scene contains a foreground object; extracting a foreground composition parameter from the foreground object, the foreground composition parameter indicating a manner of composition of the foreground object in the current image of the scene and/or a manner of composition between foreground objects in the current image of the scene; and performing, according to a reference composition parameter and the foreground composition parameter, evaluation of the current image of the scene, and outputting a first evaluation result, the reference composition parameter being a composition parameter used for capturing an image meeting a preset quality. The present invention employs a first evaluation result to provide a user with guidance and assistance in photographing, thereby providing enriched information to the user, and improving user experience.

Description

Photo processing method and camera terminal

Technical field

The present invention relates to the field of electronic terminals, and in particular, to a photographing processing method and a photographing terminal.

Background technique

An electronic terminal can be understood as a terminal having a processor and a memory, the processor reading the code in the memory to run the operating system and software. With the development of technology, an electronic terminal can usually have a camera function, which can be a mobile phone, a tablet computer, a camera, etc., and thus can also be understood as a camera terminal.

In the related art, when the user uses the camera terminal to take a photo, the user first controls the camera terminal to open the camera function. After the camera terminal is opened, the camera terminal uses the camera to view the image. During the framing process, the image of the framing can be displayed in the display screen. The user clicks the capture button to take a picture of the currently framing image to obtain a photo.

However, in the framing process, since the photographing terminal only provides the image of the framing, the information provided is relatively simple and the user experience is not good.

Summary of the invention

The photographing processing method and the photographing terminal provided by the invention solve the problem that the provided information is relatively simple and the user experience is not good.

According to a first aspect of the present invention, a photographing processing method is provided, comprising:

Make sure the current image of the framing has a foreground object:

Extracting a foreground composition parameter of the foreground object; the foreground composition parameter is used to represent a composition manner of the foreground object in the current image and/or a composition manner of each foreground object in the current image;

And evaluating the current image according to the reference composition parameter and the foreground composition parameter, and outputting a first evaluation result, where the reference composition parameter is a composition parameter used to obtain a photographed image that satisfies a preset quality.

Optionally, the foreground composition parameter includes a proportion of the foreground object in the current image, a position of the foreground object in the current image, a relative position between the foreground objects, and each of the At least one of the relative distances between foreground objects.

Optionally, the reference composition parameter includes a recommended ratio and/or a first recommended position, and the current image is evaluated according to the reference composition parameter and the foreground composition parameter, and the first evaluation result is output, including:

Determining a corresponding recommended proportion and/or a first recommended position according to the scene information input by the user, the number of the foreground objects, and the recommendation list; the recommendation list is used to represent the scene, the number of foreground objects, the recommended proportion, and/or Or a preset correspondence relationship of the first recommended location;

And outputting the first evaluation result according to the recommended proportion and/or the first recommended position to guide the user to make the foreground composition parameter satisfy the corresponding recommended proportion and/or the first recommended position by changing the taking behavior.

Optionally, the foreground object is a person.

Optionally, the method further includes:

Extracting a current line of the current image;

The current image is evaluated according to the distribution manner of the current line, and the second evaluation result is output to guide the user to take a photo to guide the user to change the distribution manner of the current line by changing the photographing behavior.

Optionally, the estimating, according to the manner of the current line distribution, the current image, and outputting the second evaluation result, including:

Selecting at least one main line among the current lines, the main line being a line having the largest thickness and/or length in the current line;

Finding standard lines matching the main line shape and/or size in the corresponding standard line library;

Determining a second recommended position and an inclination angle of the main line according to an arrangement manner of the standard line in a standard image;

And outputting the second evaluation result according to the second recommended position and the tilt angle to guide the user to make the arrangement manner of the current line satisfy the second recommended position and the tilt angle by changing the photographing behavior.

Optionally, before the searching for the standard line matching the shape and/or size of the main line in the corresponding standard line library, the method further includes:

Obtaining location information and/or time information of the current electronic terminal;

Determining the corresponding standard line library according to the location information and/or event information, and the first identification information of each standard line library; or:

The corresponding standard line library is determined according to the photographing scene information input by the user and the second identification information of each standard line library.

Optionally, the determining that the current image of the framing has a foreground object includes:

Determining a candidate object in the current image according to at least one of focus data at the time of framing and sharpness data of the current image;

Determining the sharpness data of the candidate object and the sharpness data of the non-candidate object portion in the current image a minimum difference; or determining a minimum difference between the focus data of the candidate object and the focus data of the non-candidate portion of the current image;

And if the minimum difference is greater than a threshold, determining that the candidate object is the foreground object.

According to a second aspect of the present invention, a camera terminal is provided, including:

A determination module for determining that the current image of the framing has a foreground object:

a first extraction module, configured to extract a foreground composition parameter of the foreground object; the foreground composition parameter is used to represent a composition mode of the foreground object in the current image and/or a foreground object in the current image Patterning method

a first evaluation module, configured to evaluate the current image according to the reference composition parameter and the foreground composition parameter, and output a first evaluation result, where the reference composition parameter is a composition used to obtain a photographed image that satisfies a preset quality parameter.

Optionally, the reference composition parameter includes a recommended ratio and/or a first recommended location, and the first evaluation module is specifically configured to:

Determining the corresponding recommended proportion and/or the first recommended position according to the scene information input by the user, the number of the foreground objects, and the recommendation list; the recommendation list is used to represent the scene, the number of foreground objects, and the recommended proportion And/or a preset correspondence relationship of the first recommended location;

Outputting the first evaluation result according to the first recommended ratio and/or the first recommended position to guide the user to make the foreground composition parameter satisfy the corresponding recommended ratio and/or the first by changing the taking behavior Recommended location.

Optionally, the foreground object is a person.

Optionally, the camera terminal further includes:

a second extraction module, configured to extract a current line of the current image;

And a second evaluation module, configured to evaluate the current image according to a distribution manner of the current line, and output a second evaluation result to guide the user to change a distribution manner of the current line by changing a photographing behavior.

Optionally, the determining module is further configured to determine that the current image does not have a foreground object.

Optionally, the second evaluation module is specifically configured to:

Selecting at least one main line in the current line, the main line is a thickness and/or in the current line Or the line with the longest length;

Optionally, the second evaluation module is further configured to:

Optionally, the determining module is specifically configured to:

Determining a minimum difference between the sharpness data of the candidate object and the sharpness data of the non-candidate object portion in the current image; or determining focus data of the candidate object and focus data of a non-candidate object portion in the current image Minimum difference

The photographing processing method and the photographing terminal provided by the present invention, by extracting a foreground composition parameter of the foreground object; the foreground composition parameter is used to represent a composition manner of the foreground object in the current image and/or each in the current image Forming a foreground object with each other; and evaluating the current image according to the reference composition parameter and the foreground composition parameter, and outputting a first evaluation result, wherein the reference composition parameter is used to obtain a photographed image that satisfies a preset quality The composition parameter provides the guidance and assistance for the user's photographing by using the first evaluation result, enriching the information provided to the user, and improving the user experience.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and it can be used by those skilled in the art without creative labor. Other figures are obtained from these figures.

1 is a schematic diagram of an application scenario of a photographing processing method provided by the present invention;

2 is a schematic flow chart 1 of a photographing processing method of the present invention;

3 is a schematic flow chart 2 of a photographing processing method of the present invention;

4 is a schematic flow chart of step S23 in FIG. 3;

Figure 5 is a schematic diagram 1 of a current image of the present invention;

6 is a schematic diagram 1 of an evaluation principle of a first evaluation result of the present invention;

7 is a schematic diagram of an interface for outputting a first evaluation result according to the present invention;

8 is a schematic flow chart of step S25 in FIG. 3;

Figure 9 is a schematic diagram 2 of a current image of the present invention;

10 is a second schematic diagram of the evaluation principle of a first evaluation result of the present invention;

Figure 11 is a third schematic diagram of the evaluation principle of a first evaluation result of the present invention;

12 is a schematic diagram of an interface for outputting a second evaluation result according to the present invention;

Figure 13 is a schematic structural view 1 of a camera terminal of the present invention;

Figure 14 is a second schematic structural view of a camera terminal of the present invention;

Figure 15 is a third structural diagram of a camera terminal of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terms "first", "second", "third", "fourth", etc. (if present) in the specification and claims of the present invention and the above figures are used to distinguish similar objects without having to use To describe a specific order or order. It is to be understood that the data so used may be interchanged as appropriate, such that the embodiments of the invention described herein can be implemented, for example, in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

The technical solutions of the present invention will be described in detail below with specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.

FIG. 1 is a schematic diagram of an application scenario of a photographing processing method provided by the present invention.

Referring to FIG. 1 , when the user uses the camera terminal to take a photo, the user first controls the camera terminal to open the camera function. After the camera terminal is used, the camera terminal uses the camera to view the image. During the framing process, the image of the framing can be displayed in the display screen, which can be understood as current. Image; at this time, the user clicks the shooting button to take a picture of the currently framing image to obtain a photo.

The camera terminal can be understood as any terminal device having a photographing function, and is specifically listed as a mobile phone, a tablet computer, a camera, etc., wherein the camera may include a digital camera or a non-digital camera.

2 is a schematic flow chart 1 of a photographing processing method of the present invention.

Referring to FIG. 2, the method includes:

S11: determining whether the current image of the framing has a foreground object; if the determination is yes, the subsequent step S12 may be continued. It can also be understood that, when framing, it is first determined that the current image taken has a foreground object, and then step S12 is performed.

The foreground object can be understood as a display object in the image, and the foreground is a concept relative to the background, which can be an object that is in focus, or is understood as: an object corresponding to the focal length at the time of framing, because the focal length corresponds to the object So, in theory, the object should be an object with a higher definition. In the specific implementation process, objective values such as focal length and sharpness can be used to reflect the difference between the foreground object and the background. In some optional implementations, the foreground object may not be present because the shooting scene is far or wide.

In addition, the foreground does not indicate the context of the scene. If the object farther away from the camera terminal is determined to be the object of focus, the object that is farther may be the foreground object, and the object that is closer may also be the background portion.

Since the foreground object is usually the target subject of the photograph, such as a person in the photo of the person, or a specific scene or object in the photo of the scene, the foreground object is used as a basis for guiding the user to take a photo, which can help the user to photograph the target subject of the photograph, so that It is presented in a better way with the photo.

S12: Extract foreground composition parameters of the foreground object.

The foreground composition parameter is used to represent the composition mode of the foreground object in the current image and/or the composition mode of each foreground object in the current image. Any parameter that can characterize the composition in the form of quantized data can be understood as a foreground composition parameter, and the dimensions involved can include position, size, rotation angle, and the like.

S13: The current image is evaluated according to the reference composition parameter and the foreground composition parameter, and the first evaluation result is output to guide the user to take a photo.

The first evaluation result is understood to be used to guide the user to change the foreground composition parameter by changing the photographing behavior, which may be any form of information, for example, the user may be photographed in a text form, or may be guided by an image, an identifier, or the like. The user does not deviate from the above description of the present invention as long as the first evaluation result is obtained according to the foreground composition parameter and can function to guide the user to change the photographing behavior. At the same time, the first evaluation result may have other effects in addition to the guiding effect.

The reference composition parameter can be understood as a composition parameter used to obtain a photographed image that satisfies a preset quality.

The photographing processing method provided by the embodiment, by extracting a foreground composition parameter of the foreground object; the foreground composition parameter is used to represent a composition manner of the foreground object in the current image and/or each foreground object in the current image Forming a pattern with each other; and evaluating the current image according to the reference composition parameter and the foreground composition parameter, and outputting a first evaluation result, wherein the reference composition parameter is a composition used to obtain a photographed image that satisfies a preset quality The invention provides guidance and assistance for the user's photographing by using the first evaluation result, enriches the information provided to the user, and improves the user experience.

FIG. 3 is a second schematic diagram of a process of a photographing processing method according to the present invention.

Please refer to FIG. 3, the method includes:

S21: Determine whether the current image taken has a foreground object; if the determination is yes, the subsequent step S22 may be continued. If the determination is no, the subsequent step S24 can be continued. It can also be understood that, when framing, it is first determined that the current image taken has a foreground object, and then step S22 is performed, or it is determined that the current image taken does not have a foreground object, and then step S24 is performed.

Based on the above description, in one embodiment, the step of determining that the current image of the framing has a foreground object may include:

The candidate object is determined in the current image according to at least one of focus data at the time of framing and sharpness data of the current image.

Determining a minimum difference between the sharpness data of the candidate object and the sharpness data of the non-candidate object portion in the current image; or determining focus data of the candidate object and focus data of a non-candidate object portion in the current image The smallest difference.

On the other hand, if the minimum difference is not greater than the threshold, it is confirmed that the current image does not have a foreground object.

Through the sharpness or focus data, the foreground object can be accurately determined by the comparison of different sharpness or focus data in the current image.

Step S21 may also include the step of entering the evaluation photographing mode, that is, the photographing terminal performs the step S21 and the subsequent steps only after the user implements the triggering into the evaluation photographing mode, and the user may not enter the evaluation photographing mode, but adopts the ordinary photographing. Mode, or exit the evaluation photo mode at any time during the evaluation of the photo mode.

The evaluation photographing mode may also be named as a master photographing mode, a guiding photographing mode, and the like, which can be understood as a mode that can guide the photographing for the current image of the framing.

S22: Extract foreground composition parameters of the foreground object.

In one embodiment, the foreground composition parameter may include a proportion of the foreground object in the current image, a position of the foreground object in the current image, and a relative position between the foreground objects. At least one of a relative distance between the foreground objects.

S23: The current image is evaluated according to the reference composition parameter and the foreground composition parameter, and the first evaluation result is output to guide the user to take a photo.

The first evaluation result is understood to be used to guide the user to change the foreground composition parameter by changing the photographing behavior, which may be any form of information, such as guiding the user to take a picture in text form, or guiding the user in the form of an image, an identifier, or the like. As long as the first evaluation result is obtained according to the foreground composition parameter and can function to guide the user to take a picture, the above description of the present invention is not deviated. At the same time, the first evaluation result may have other effects in addition to the guiding effect.

FIG. 4 is a schematic flow chart of step S23 in FIG. 3. FIG. 5 is a schematic diagram 1 of a current image of the present invention; FIG. 6 is a schematic diagram 1 of an evaluation principle of a first evaluation result of the present invention. FIG. 7 is a schematic diagram of an interface for outputting a first evaluation result according to the present invention.

Referring to FIG. 4, the reference composition parameter includes a recommended ratio and/or a first recommended position, and step S23 may include:

S231: Determine, according to the scenario information input by the user, the number of the foreground objects, and the recommendation list, the corresponding recommended proportion and/or the first recommended location; the recommendation list is used to represent the scene, the number of foreground objects, and the recommendation The preset correspondence of the ratio and/or the first recommended position.

The scenario information can be understood as indicating the information of the currently applied scenario. In different scenarios, the preset correspondences of the number of foreground objects, the recommended ratio, and/or the first recommended location are different. Pre-set according to a priori experience, or aesthetic requirements, can also be determined by the user's opinion.

The recommended ratio can be understood as the proportion of the recommended foreground object in the current image, which may be a specific ratio or a range of ratios; the first recommended position may be any part based on the foreground object. The location, such as the top, bottom, center, leftmost, or rightmost of the foreground object.

Referring to FIG. 5 and FIG. 6 , taking the current image shown in FIG. 5 as an example, the middle shadow portion of FIG. 6 represents the foreground object, wherein the area of the foreground object may be S ₁ , and the area of the current image may be (S ₁ +S ₂ ); the far left of the foreground object can be characterized by the line L ₁ , and the rightmost part of the foreground object can be characterized by the line L ₂ . When determining the position and the ratio, S1/(S1+S2) can be determined as the recommended ratio, and the recommended position to be reached by the straight line L1 and the straight line L2 can also be determined.

For example, for a scene of a person taking a selfie, the foreground object is a person, and if the number of foreground objects is one, the recommended ratio may be a golden ratio of 0.618, that is, the person's picture recommendation is 0.618 of the entire current image, or based on the golden ratio. The floating interval, for example, 0.58 to 0.63; its position is recommended to be in the center of the picture, and the distance of the top of the person's picture from the top edge of the current image is less than one third of the vertical length of the image, which is greater than the vertical length of the image. One quarter. If the number of foreground objects is two, each data can be adjusted accordingly.

In addition, the scene can be roughly divided, and can be further subdivided. For example, for a scene of a person taking a selfie, it can also be subdivided into a subdivision scene of one tall and one short, or a scene of a single person.

S232: Output the first evaluation result according to the recommended proportion and/or the first recommended position, to guide the user to make the foreground composition parameter satisfy the corresponding recommended proportion and/or first by changing the taking behavior Recommended location.

The relationship between the recommended ratio and the first evaluation result, and the relationship between the first recommended position and the first evaluation result may be determined according to common knowledge of photographs in the field.

Taking FIG. 7 as an example, if the proportion of the foreground object is too large according to the recommended ratio, it is recommended to lengthen the shooting distance. According to common sense, since the shooting distance becomes larger, the size of the object in the image can be made smaller; The proportion of foreground objects is too far to the left. According to common sense, it is recommended to move the lens to the left. According to common sense, since the lens moves to the left, correspondingly, the position of the foreground object in the image can be moved to the right. The suggestions mentioned above can be understood as the first evaluation results.

In addition, if the recommendation ratio conflicts with the recommendation obtained by the first recommended location, the priority may be set in advance. For example, if the priority of the recommended ratio is higher than the first recommended location, the first evaluation result that is output may be Give priority to the achievement of the recommended location.

Since the present invention only gives a suggestion, that is, the evaluation result, whether it is adjusted according to the evaluation result, the user still needs to make a voluntary decision and implementation. Therefore, the implementation manner can provide the user with the adjustment guide instead of the user, and the guarantee is ensured. The autonomy of the user is more in line with the personalization of the photographing behavior.

9 is a schematic diagram 2 of a current image of the present invention; and FIG. 10 is a second schematic diagram of the evaluation principle of a first evaluation result of the present invention.

When framing, it also includes:

S24: Extract a current line of the current image.

The current line can be understood as any line that can be extracted based on the current image.

In an implementation manner, before step S24, the method may further include: determining that the current image does not have a foreground object. That is, when the determination in step S21 is NO, step S24 can be performed. Meanwhile, the implementation of step S24 can also be implemented after step S23 to output two evaluation results.

For the means of steps S22 and S23, it can be applied to a scene with a foreground object, especially for a scene of a portrait, and for the means of steps S24 and S25, it can be applied to a scene without a clear foreground, that is, the foreground and the background are not clearly distinguished. Scenes such as partial landscape photos.

For the current image shown in FIG. 9, the result of extracting the current line can be understood with reference to FIG. Depending on the parameters and methods that are limited by the extracted lines, the extracted lines may be different for the same image. Different parameters and line extraction schemes may be used depending on the scene.

S25: The current image is evaluated according to the distribution manner of the current line, and the second evaluation result is output to guide the user to change the distribution manner of the current line by changing the taking behavior.

8 is a schematic flow chart of step S25 in FIG. 3;

11 is a schematic diagram 3 showing an evaluation principle of a first evaluation result of the present invention; and FIG. 12 is a schematic diagram of an interface for outputting a second evaluation result according to the present invention.

Step S25, comprising:

S251: Select at least one main line in the current line, where the main line is a line with the largest thickness and/or length in the current line.

In image composition, there are usually some main lines that guide the entire composition of the structure, such as the horizon in the landscape, the outline of the building, and so on. By grasping the position and tilt angle of these main lines, it is possible to facilitate the beautiful composition of the image.

Line 1 shown in Fig. 11 is the main line because of its largest length.

S252: Find a standard line matching the main line shape and/or size in the corresponding standard line library.

The size therein can be understood as the size in the image. The shape may be the shape of a single main line, or may include a shape resulting from a combination of a plurality of main lines.

Through step S252, evaluation can be performed based on similar standard lines, thereby giving an evaluation result. For the outline of buildings and scenes, the lines in different photos have a certain degree of consistency. Therefore, in this embodiment, the user can effectively guide the user to take photos corresponding to other aesthetically confirmed standard lines.

Therefore, after step S24, specifically before step S252, the method may further include:

Obtaining location information and/or time information of the current electronic terminal; determining the corresponding standard line library according to the location information and/or event information, and the first identification information of each standard line library; or:

It can be seen that the selection of the standard line library can be selected based on the position and time information, or can be based on the scene selection. The position and time information can be understood as automatic selection, and the selection based on the scene can be understood as manual selection. By selecting the standard line library, the workload of finding lines in step S252 can be effectively reduced, and work efficiency is improved.

S253: Determine a second recommended position and an inclination angle of the main line according to the arrangement manner of the standard line in the standard image.

The second recommended position and the tilt angle may be the same as the position and angle of the standard line in the standard image, or may be obtained by a floating position and a floating angle according to the position and angle of the standard line in the standard image, thereby: The second recommended position is in the floating position and the tilt angle is in the floating angle. The recommended position can be any part based on the line, which can be the leading end, the end, the topmost end, the bottom end, the leftmost end, and the rightmost end of the line.

Through the second recommended position and the tilt angle, the evaluation can be provided to facilitate the process of taking pictures of the user. Guide.

S254: Output the second evaluation result according to the second recommended position and the tilt angle to guide the user to make the arrangement manner of the current line satisfy the arrangement manner of the standard line by changing the photographing behavior.

The relationship between the second recommended position and the second evaluation result, and the relationship between the tilt angle and the first evaluation result may be determined according to common sense for photographing in the field.

Taking FIG. 11 as an example, the top end of the main line 1 can be characterized by a straight line L ₃ , and the bottom end can be characterized by a straight line L ₄ ; when determining the position, the recommended position of the straight line L ₃ and the straight line L ₄ can also be determined. . In Fig. 12, if it is determined that the position of the main line relative to the standard line is low, according to common sense, it may be recommended to move the lens downward, correspondingly, to make the position of the main line in the image move up. The suggestions mentioned above can be understood as the second evaluation result.

In addition, if the inclination angle is in conflict with the recommendation obtained by the second recommended position, the priority may be set in advance. For example, if the priority of the second recommended position is higher than the inclination angle, priority may be given to securing the second recommended position. . If the suggestion of the first evaluation result conflicts with the suggestion of the second evaluation result, the suggestion may not be output, or the corresponding suggestion may be output according to a preset priority; for example, for the scene of the portrait, the first evaluation result may be determined. The priority is higher than the second evaluation result; for the scene of the landscape, it may be determined that the second evaluation result has a higher priority than the first evaluation result.

The photographing processing method provided by the embodiment, by extracting a foreground composition parameter of the foreground object; the foreground composition parameter is used to represent a composition manner of the foreground object in the current image and/or each foreground object in the current image Forming a pattern with each other; and evaluating the current image according to the foreground composition parameter, outputting a first evaluation result to guide the user to change the foreground composition parameter by changing the photographing behavior; the present invention utilizes the first evaluation result as The user's photo provides guidance and assistance, enriching the information provided to the user and improving the user experience.

FIG. 13 is a first schematic structural diagram of a photographing terminal of the present invention.

Referring to FIG. 13, the camera terminal includes:

The determining module 101 is configured to determine that the current image of the framing has a foreground object:

a first extraction module 102, configured to extract a foreground composition parameter of the foreground object; the foreground composition parameter is used to represent a composition mode of the foreground object in the current image and/or each foreground object in the current image is mutually Composition method

The first evaluation module 103 is configured to evaluate the current image according to the reference composition parameter and the foreground composition parameter, and output a first evaluation result, where the reference composition parameter is used to obtain a captured image that meets a preset quality. Composition parameters.

The photographing terminal provided in this embodiment is configured to extract a foreground composition parameter of the foreground object; the foreground composition parameter is used to represent a composition manner of the foreground object in the current image and/or each foreground object in the current image is mutually a patterning mode; and evaluating the current image according to the reference composition parameter and the foreground composition parameter, and outputting a first evaluation result, wherein the reference composition parameter is a composition parameter used to obtain a photographed image that satisfies a preset quality The invention provides guidance and assistance for the user's photographing by using the first evaluation result, enriches the information provided to the user, and improves the user experience.

FIG. 14 is a second schematic structural diagram of a photographing terminal of the present invention.

Referring to FIG. 14, the camera terminal includes:

The determining module 201 is configured to determine, when framing, that the current image taken has a foreground object:

a first extraction module 202, configured to extract a foreground composition parameter of the foreground object; the foreground composition parameter is used to represent a composition mode of the foreground object in the current image and/or each foreground object in the current image is mutually Composition method

The first evaluation module 203 is configured to evaluate the current image according to the reference composition parameter and the foreground composition parameter, and output a first evaluation result, where the reference composition parameter is used to acquire a photographed image that satisfies a preset quality Composition parameters.

Optionally, the reference composition parameter includes a recommended ratio and/or a first recommended location, and the first evaluation module 203 is specifically configured to:

Optionally, the foreground object is a person.

Optionally, the camera terminal further includes:

a second extraction module 204, configured to extract a current line of the current image;

a second evaluation module 205, configured to evaluate the current image according to a distribution manner of the current line Estimating, outputting a second evaluation result to guide the user to change the distribution of the current line by changing the taking behavior.

Optionally, the determining module 201 is further configured to determine that the current image does not have a foreground object.

Optionally, the second evaluation module 205 is specifically configured to:

Optionally, the second evaluation module 205 is further configured to:

Optionally, the determining module 201 is specifically configured to:

Referring to FIG. 15, the camera terminal 50 includes: a processor 51 and a memory 52;

The memory 52 is configured to store a computer program, and the memory may also be a flash memory.

The processor 51 is configured to execute an execution instruction of the memory storage to implement each step in the above method. For details, refer to the related description in the foregoing method embodiments.

Alternatively, the memory 52 can be either stand-alone or integrated with the processor 51.

When the memory 52 is a device other than the processor 51, the camera terminal 50 may further include:

A bus 53 is provided for connecting the memory 52 and the processor 51.

The embodiment provides a readable storage medium. The readable storage medium stores execution instructions. When at least one processor of the electronic terminal executes the execution instruction, the electronic terminal executes the methods provided by the various embodiments described above.

The embodiment provides a program product including an execution instruction stored in a readable storage medium. At least one processor of the electronic terminal can read the execution instructions from a readable storage medium, and the at least one processor executes the execution instructions such that the electronic terminal implements the methods provided by the various embodiments described above.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A photographing processing method, comprising:

Make sure the current image of the framing has a foreground object:

Extracting a foreground composition parameter of the foreground object; the foreground composition parameter is used to represent a composition manner of the foreground object in the current image and/or a composition manner of each foreground object in the current image;

And evaluating the current image according to the reference composition parameter and the foreground composition parameter, and outputting a first evaluation result, where the reference composition parameter is a composition parameter used to obtain a photographed image that satisfies a preset quality.
The method according to claim 1, wherein said foreground composition parameter comprises a proportion of said foreground object in said current image, a position of said foreground object in said current image, said foreground objects At least one of a relative position between the relative positions between the foreground objects.
The method according to claim 2, wherein the reference composition parameter comprises a recommended ratio and/or a first recommended position, and the current image is evaluated according to the reference composition parameter and the foreground composition parameter , output the first evaluation result, including:

Determining the corresponding recommended proportion and/or the first recommended position according to the scene information input by the user, the number of the foreground objects, and the recommendation list; the recommendation list is used to represent the scene, the number of foreground objects, and the recommended proportion And/or a preset correspondence relationship of the first recommended location;

Outputting the first evaluation result according to the recommended proportion and/or the first recommended position to guide the user to make the foreground composition parameter satisfy the corresponding recommended proportion and/or the first recommended position by changing the taking behavior .
The method according to any one of claims 1 to 3, further comprising:

Extracting a current line of the current image;

The current image is evaluated according to the distribution manner of the current line, and a second evaluation result is output to guide the user to change the distribution manner of the current line by changing the photographing behavior.
The method according to claim 4, wherein the evaluating the current image according to a distribution manner of the current line, and outputting a second evaluation result, comprising:

Selecting at least one main line among the current lines, the main line being a line having the largest thickness and/or length in the current line;

Finding standard lines matching the main line shape and/or size in the corresponding standard line library;

Determining a second recommended position and an inclination angle of the main line according to an arrangement manner of the standard line in a standard image;

Outputting the second evaluation result according to the second recommended position and the tilt angle to guide the user to pass The photographing behavior is changed such that the arrangement of the current lines satisfies the second recommended position and the tilt angle.
The method according to claim 5, wherein before the finding a standard line matching the main line shape and/or size in the corresponding standard line library, the method further comprises:

Obtaining location information and/or time information of the current electronic terminal;

Determining the corresponding standard line library according to the location information and/or event information, and the first identification information of each standard line library; or:

The corresponding standard line library is determined according to the photographing scene information input by the user and the second identification information of each standard line library.
The method according to any one of claims 1 to 3, wherein the determining that the current image of the framing has a foreground object comprises:

Determining a candidate object in the current image according to at least one of focus data at the time of framing and sharpness data of the current image;

Determining a minimum difference between the sharpness data of the candidate object and the sharpness data of the non-candidate object portion in the current image; or determining focus data of the candidate object and focus data of a non-candidate object portion in the current image Minimum difference

And if the minimum difference is greater than a threshold, determining that the candidate object is the foreground object.
The method according to any one of claims 1 to 3, characterized in that the foreground object is a person.
A camera terminal, comprising:

A determining module for determining that the current image taken has a foreground object when framing:

a first extraction module, configured to extract a foreground composition parameter of the foreground object; the foreground composition parameter is used to represent a composition mode of the foreground object in the current image and/or a foreground object in the current image Patterning method

a first evaluation module, configured to reference the composition parameter and evaluate the current image according to the foreground composition parameter, and output a first evaluation result, where the reference composition parameter is a composition used to obtain a photographed image that satisfies a preset quality parameter.
A photographing terminal, comprising: a memory, a processor, and a computer program, wherein the computer program is stored in the memory, the processor running the computer program to perform any one of claims 1 to Photo processing method.