CN105913060A - Picture correction method and device and intelligent device - Google Patents

Abstract

The invention is suitable for the technical field of intelligent equipment, and provides a picture correction method, a picture correction device and intelligent equipment, wherein the correction method comprises the following steps: acquiring a picture shot by a camera under the photographing question-asking function; and rotating the picture according to the direction of any line of characters in the picture, so that the characters in the rotated picture are parallel to the upper boundary/lower boundary of the display screen, and the tops of the characters face upwards. The invention solves the problem of the direction inclination of the characters in the picture, thereby reducing the difficulty of question identification and interception in the photographing question function and improving the accuracy of question identification.

Description

Image correction method, device and intelligent device

technical field

The invention belongs to the technical field of intelligent equipment, and in particular relates to a picture correction method, device and intelligent equipment.

Background technique

The existing photo-taking questioning steps include: obtaining a photographed picture - intercepting a question from the picture - uploading a question - searching for a matching question - giving back an answer. However, when the direction in which the user shoots is tilted, the obtained photos will also be tilted. The characters in the photos are usually not parallel to the upper and lower boundaries of the display screen. It is difficult to identify and intercept the title of such tilted photos. The accuracy of topic recognition is low, and sometimes the topic cannot even be recognized.

Contents of the invention

In view of this, embodiments of the present invention provide a picture correction method, device, and smart device to solve the problem of inclination of characters in the picture.

In a first aspect, a method for correcting a picture is provided, and the correction method includes:

Under the function of taking pictures and asking questions, obtain the pictures taken by the camera;

The picture is rotated according to the direction of any line of characters in the picture, so that the characters in the picture after rotation are parallel to the upper boundary/lower boundary of the display screen and the tops of the characters face upward.

In a second aspect, a picture correction device is provided, and the correction device includes:

The obtaining module is used to obtain the pictures taken by the camera under the function of taking photos and asking questions;

A correction module, configured to rotate the picture according to the direction of any row of characters in the picture, so that the characters in the rotated picture are parallel to the upper boundary/lower boundary of the display screen and the tops of the characters face upward.

In a third aspect, a smart device is provided, and the smart device includes the above-mentioned image correction apparatus.

Compared with the prior art, the embodiment of the present invention adds a correction to the direction of the picture in the photographing link of the photographing and questioning function; by obtaining the picture taken by the camera under the photographing and asking function; and then according to any line of characters in the picture Rotate the picture in the direction so that the characters in the rotated picture are parallel to the upper/lower border of the display screen and the top of the character faces upwards, thus solving the problem of tilting the direction of the picture, so that the rotated The characters in the picture are in the positive direction of human vision, which reduces the difficulty of identifying and intercepting questions in the photo-taking and questioning function, and improves the accuracy of question recognition.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without creative work.

FIG. 1 is a flow chart of an implementation of a method for correcting pictures provided by an embodiment of the present invention;

Fig. 2 is an implementation flowchart of a picture correction method provided by another embodiment of the present invention;

FIG. 3 is a structural diagram of a picture correction device provided by an embodiment of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In the embodiment of the present invention, the correction of the direction of the picture is added in the photographing link of the photographing and questioning function; by obtaining the picture taken by the camera under the photographing and asking function; and then rotating the picture according to the direction of any line of characters in the picture, so as to Make the characters in the rotated picture parallel to the upper boundary/lower boundary of the display screen and the top of the characters face up, thus solving the problem of tilting the direction of the picture, so that the characters in the rotated picture can be seen by human eyes The positive direction, thereby reducing the difficulty of topic identification and interception in the photo-questioning function, and improving the accuracy of topic identification. Embodiments of the present invention also provide corresponding devices, which will be described in detail below.

FIG. 1 shows the implementation flow of a method for correcting a picture provided by an embodiment of the present invention.

In the embodiment of the present invention, the method is applied to a smart device, and the smart device includes but is not limited to a smart phone, a tablet computer, a computer, a tutor machine, and the like. The smart device is provided with a camera capable of taking pictures and obtaining pictures.

Referring to Fig. 1, the correction method includes:

In step S101, under the function of taking pictures and asking questions, the pictures taken by the camera are acquired.

In the embodiment of the present invention, when the smart device activates the function of photographing and asking questions, the camera is activated for the user to take pictures of the questions to be asked. The smart device takes pictures according to the user's operation, and obtains a picture containing the question to be asked.

In step S102, the picture is rotated according to the direction of any row of characters in the picture, so that the characters in the rotated picture are parallel to the upper boundary/lower boundary of the display screen and the tops of the characters face upward.

Here, the inclination direction of each row of characters in the picture is consistent, and the inclination direction is also the inclination direction of the entire picture. Therefore, the embodiment of the present invention rotates the picture according to the tilt direction of any line of characters in the picture until the line of characters in the rotated picture is in the positive direction in human vision. The present invention defines that the positive direction is that the characters are parallel to the upper boundary/lower boundary of the display screen and the top faces upward; thus solving the problem that the direction of the picture is tilted. When the characters in the picture are in the positive direction of human vision, it further reduces the difficulty of topic identification and interception in the photo-taking and questioning function, and improves the accuracy of topic identification.

FIG. 2 shows the implementation flow of a method for correcting pictures provided by another embodiment of the present invention.

Referring to Figure 2, the correction method includes:

In step S201, under the function of taking pictures and asking questions, the pictures taken by the camera are acquired.

In step S202, any line of characters in the picture is obtained according to the character spacing and the line spacing.

In step S203, the pixel corresponding to each character in the row is obtained.

In step S204, the pixel points are connected according to the character spacing to obtain a line segment corresponding to the row.

In the embodiment of the present invention, after obtaining the characters in any row in the picture, obtain the pixel points corresponding to each character in the row; then connect the pixel points according to the character spacing to approximate a line The line segment with the larger width, so that the line segment corresponding to the row is obtained. The line segment is parallel to the row, indicating the direction of inclination of the row.

In step S205, the picture is rotated until the line segment is parallel to the upper boundary/lower boundary of the display screen and the top of the character faces upward.

Here, the entire picture can be rotated clockwise or counterclockwise until the line segments in the picture are parallel to the upper/lower boundaries of the display screen and the tops of the characters in the picture face upwards, that is, in the picture The direction of the character is the positive direction in human vision; thus solving the problem of the direction of the picture being tilted. When the characters in the picture are in the positive direction of human vision, the difficulty of topic identification and interception in the photo-taking and questioning function is further reduced, and the accuracy of topic identification is improved.

As another preferred example of the present invention, in the picture correction method described in the embodiment of Fig. 1 or Fig. 2, the correction method may further include:

Display the picture after rotation.

The example of the present invention enables the user to preview the correction effect of the character direction by displaying the rotated picture, and facilitates the user to check and confirm the photographed questions to be asked.

It should be noted that the characters described in the embodiments of FIG. 1 and FIG. 2 of the present invention include but are not limited to characters, letters or numbers.

In summary, the embodiment of the present invention adds a correction to the direction of the picture in the photographing link of the photographing and questioning function; by obtaining the picture taken by the camera under the photographing and asking function; and then rotating according to the direction of any line of characters in the picture The picture, so that the characters in the rotated picture are parallel to the upper boundary/lower boundary of the display screen and the top of the character is facing upward, thereby solving the problem of the direction of the picture being tilted, so that the rotated picture is The characters are the positive direction of human vision, which reduces the difficulty of question recognition and interception in the photo-question function, and improves the accuracy of question recognition.

FIG. 3 shows the composition and structure of the image correction apparatus provided by the embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown.

In the embodiment of the present invention, the picture correction device is used to realize the picture correction method described in the embodiment of Fig. 1 or Fig. 2 above, which may be a software unit, a hardware unit or a combination of software and hardware built into the smart device unit. The smart devices include, but are not limited to, smart phones, tablet computers, computers, tutoring machines, and the like. The smart device is provided with a camera capable of taking pictures and obtaining pictures.

Referring to Figure 3, the correction device includes:

Obtaining module 31, used for obtaining the picture taken by the camera under the function of taking pictures and asking questions;

A correction module 32, configured to rotate the picture according to the direction of any row of characters in the picture, so that the characters in the rotated picture are parallel to the upper boundary/lower boundary of the display screen and the tops of the characters face upward .

Further, the correction module 32 includes:

The first acquisition unit 321 is configured to acquire any line of characters in the picture according to the character spacing and the line spacing;

The second acquiring unit 322 is configured to acquire the pixel points corresponding to each character in the row;

A connecting unit 323, configured to connect the pixel points according to the character spacing to obtain the line segment corresponding to the row;

The rotation unit 324 is configured to rotate the picture until the line segment is parallel to the upper boundary/lower boundary of the display screen and the top of the character faces upward.

Further, the correction device also includes:

The display module 33 is configured to display the rotated picture.

The example of the present invention enables the user to preview the correction effect of the character direction by displaying the rotated picture, and facilitates the user to check and confirm the photographed questions to be asked.

Here, the characters described in the embodiment of the present invention include but not limited to words, letters or numbers.

It should be noted that the device in the embodiment of the present invention can be used to realize all the technical solutions in the above method embodiment, and the functions of each functional module can be realized according to the method in the above method embodiment, and the specific implementation process can refer to Relevant descriptions in the above examples will not be repeated here.

In the embodiment of the present invention, the correction of the direction of the picture is added in the photographing link of the photographing and questioning function; by obtaining the picture taken by the camera under the photographing and asking function; and then rotating the picture according to the direction of any line of characters in the picture, so as to Make the characters in the rotated picture parallel to the upper boundary/lower boundary of the display screen and the top of the characters face up, thus solving the problem of tilting the direction of the picture, so that the characters in the rotated picture can be seen by human eyes The positive direction, thereby reducing the difficulty of topic identification and interception in the photo-questioning function, and improving the accuracy of topic identification.

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

Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the above-described devices and units can refer to the corresponding process in the foregoing method embodiments, and details are not repeated here.

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

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

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

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. .

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

Claims (9)

1. A correction method for a picture, characterized in that the correction method comprises: Under the function of taking pictures and asking questions, obtain the pictures taken by the camera; The picture is rotated according to the direction of any line of characters in the picture, so that the characters in the picture after rotation are parallel to the upper boundary/lower boundary of the display screen and the tops of the characters face upward. 2. The method for correcting a picture according to claim 1, wherein the picture is rotated according to the direction of any line of characters in the picture, so that the characters in the picture after rotation are parallel to the display screen An upper/lower border with the top of the character facing up includes: Obtain any line of characters in the picture according to the character spacing and the line spacing; Obtain the pixel corresponding to each character in the row; Connecting the pixel points according to the character spacing to obtain a line segment corresponding to the row; Rotate the picture until the line segments are parallel to the top/bottom border of the display and the top of the character is facing up. 3. The correction method of the picture as claimed in claim 1 or 2, is characterized in that, described correction method also comprises: Display the picture after rotation. 4. The method for correcting pictures according to claim 1 or 2, wherein the characters are characters, letters or numbers. 5. A correction device for a picture, characterized in that the correction device comprises: The obtaining module is used to obtain the pictures taken by the camera under the function of taking photos and asking questions; A correction module, configured to rotate the picture according to the direction of any row of characters in the picture, so that the characters in the rotated picture are parallel to the upper boundary/lower boundary of the display screen and the tops of the characters face upward. 6. The correction device of the picture as claimed in claim 5, is characterized in that, described correction module comprises: a first acquisition unit, configured to acquire any line of characters in the picture according to the character spacing and the line spacing; The second acquiring unit is used to acquire the pixel points corresponding to each character in the row; A connecting unit, configured to connect the pixel points according to the character spacing to obtain the line segment corresponding to the row; A rotation unit is used to rotate the picture until the line segment is parallel to the upper boundary/lower boundary of the display screen and the top of the character faces upward. 7. The correction device of the picture as claimed in claim 5 or 6, is characterized in that, described correction device also comprises: The display module is used to display the rotated picture. 8. The image correction device according to claim 5 or 6, wherein the characters are characters, letters or numbers. 9. An intelligent device, characterized in that the intelligent device comprises the image correction device according to any one of claims 5 to 8.