CN106303235A - Photographing processing method and device - Google Patents

Abstract

The invention discloses a photographing processing method and a photographing processing device, wherein the photographing processing method comprises the following steps: receiving a photographing instruction; triggering a camera of the electronic terminal to execute N times of photographing actions at intervals under the instruction of the photographing instruction to obtain N images, wherein the duration of the intervals is a preset value, and N is a natural number greater than 2; synthesizing the N images; intercepting a target image area from the synthesized image, wherein the target image area is as follows: an image area composed of the largest number of images; and outputting the target image area. The technical scheme provided by the invention can effectively improve the quality of the photographed image.

Description

Photo processing method and device

technical field

The present invention relates to the technical field of photographing, in particular to a photographing processing method and device.

Background technique

With the rapid development of electronic terminals (such as smart phones, tablet computers, etc.), at present, basically all electronic terminals have a camera function. It is more convenient to use, so the public is more willing to use the camera function of the electronic terminal to take pictures.

However, it is not easy for the user to take satisfactory photos through the electronic terminal. At present, when a user uses an electronic terminal to take pictures, since the user takes pictures with a hand in most cases (i.e., holds the electronic terminal to take pictures), therefore, when the user triggers the electronic terminal to take pictures (for example, when the user clicks the photo button of the electronic terminal) time), it is easy to cause the electronic terminal to shake and affect the focus of its camera, resulting in blurred images.

Contents of the invention

The invention provides a photographing processing method and device for improving the quality of images obtained by photographing.

A first aspect of the present invention provides a photographing processing method, including:

Receive camera instructions;

Triggering the camera of the electronic terminal to perform N times of photographing actions at intervals under the instruction of the above-mentioned photographing instruction to obtain N images, wherein the duration of the above-mentioned interval is a preset value, and the above-mentioned N is a natural number greater than 2;

Combining the above N images;

Intercepting a target image area from the synthesized image, wherein the target image area is: an image area synthesized by the largest number of images;

Output the above target image region.

The second aspect of the present invention provides a camera processing device, including:

a receiving unit, configured to receive a photographing instruction;

The triggering unit is used to trigger the camera of the electronic terminal to perform N times of taking pictures at intervals under the instruction of the above-mentioned photographing instruction received by the above-mentioned receiving unit, and obtain N images, wherein the duration of the above-mentioned interval is a preset value, and the above-mentioned N is A natural number greater than 2;

a synthesis unit, configured to synthesize the above N images;

An intercepting unit, configured to intercept a target image area from the image synthesized by the above synthesis unit, wherein the above target image area is: an image area synthesized by the largest number of images;

An output unit, configured to output the above target image area.

It can be seen from the above that in the solution of the present invention, when receiving a photographing instruction, the camera of the electronic terminal is triggered to perform multiple photographing actions at intervals, and multiple images obtained by multiple photographing are synthesized, and the target image area is intercepted from the synthesized image (that is, the image area synthesized by the largest number of images) and output. Since the time interval between each of the above-mentioned multiple photographs is constant, the number of identical images obtained when the camera is stable must be the largest. Correspondingly, the image areas contained in these identical images must also be among the above-mentioned synthesized images. The target image area, so by intercepting the target image area, most of the noise image area generated by the movement or shaking of the camera can be cut off, which effectively improves the quality of the image obtained by taking pictures.

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 any creative effort.

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

Fig. 2 is a schematic flow chart of another embodiment of the photographing processing method provided by the present invention;

Fig. 3 is a schematic structural diagram of an embodiment of a photographing processing device provided by the present invention.

detailed description

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

An embodiment of the present invention provides a photographing processing method, including: receiving a photographing instruction; triggering the camera of the electronic terminal to perform N photographing actions at intervals under the instruction of the photographing instruction, and obtain N images, wherein the duration of the interval is preset Value, the above-mentioned N is a natural number greater than 2; the above-mentioned N images are synthesized; the target image area is intercepted from the synthesized image, wherein the above-mentioned target image area is: an image area synthesized by the largest number of images; the above-mentioned target image is output area. The embodiment of the present invention also provides a corresponding test question search device, which will be described in detail below.

Embodiment one

Please refer to Fig. 1, the photograph processing method in the embodiment of the present invention comprises:

Step 101, receiving a camera instruction;

In the embodiment of the present invention, the photographing instruction is used to trigger the camera of the electronic terminal to perform the photographing action. Specifically, when the camera of the electronic terminal is started (started in the foreground or started in the background), the user can input the camera instruction by triggering the preset camera button (the camera button can be a virtual button or a physical button), or by inputting The camera instruction is input in a preset voice mode, and the embodiment of the present invention does not limit the specific input method of the camera instruction.

Optionally, step 101 is specifically receiving a photographing instruction in a screen-off photographing mode. Wherein, the above-mentioned off-screen photographing mode refers to a photographing mode in which the camera of the electronic terminal operates in the background when the electronic terminal is in a screen-off state. In the embodiment of the present invention, the above-mentioned electronic terminal is equipped with an interface for starting the photo mode with the screen off, so that the user can trigger the startup and operation of the photo mode with the screen off through the interface for starting the photo mode with the screen off when the electronic terminal is in the state of the screen off. Specifically, the startup interface of the screen-off camera mode can be represented as a physical button (for the convenience of description, the physical button is described as an A key), and when the above-mentioned electronics is in the screen-off state, the user triggers the A button (for example, clicks , double-click or long-press the A key) to trigger the startup and operation of the above-mentioned off-screen photo mode. Alternatively, the interface for starting the screen-off camera mode can also be in other forms. For example, the interface for starting the screen-off camera mode can also be represented as a touch input interface. Input a preset gesture to trigger the startup and operation of the above-mentioned screen-off camera mode. In the embodiment of the present invention, no specific limitation is imposed on the starting manner of the above-mentioned off-screen photographing mode. The start-up and operation of the above-mentioned off-screen photographing mode is specifically shown as: starting the camera of the above-mentioned electronic terminal in the background (the camera can be a built-in camera of the above-mentioned electronic terminal, or can also be an external camera for the above-mentioned electronic terminal). Wherein, the above-mentioned starting the camera of the above-mentioned electronic terminal in the background refers to starting the camera to enter shooting preparation but not displaying the preview window of the camera.

Certainly, step 101 may also be expressed as receiving the above-mentioned photographing instruction in other preset photographing modes.

Step 102, triggering the camera of the electronic terminal to perform N times of photographing actions at intervals under the instruction of the above-mentioned photographing instruction, and obtain N images;

Wherein, the length of the above-mentioned interval is a preset value (for example, the time for humans to effectively perceive changes is 0.5 seconds, so the length of the above-mentioned interval can be set to 0.5 seconds), and the above-mentioned N is a natural number greater than 2.

For example, when the above-mentioned interval is 0.5 seconds and the above-mentioned N is 10, the camera of the electronic terminal is triggered to take a picture every 0.5 seconds under the instruction of the above-mentioned picture-taking instruction, for a total of 10 times, and 10 images are obtained.

Step 103, combining the above N images;

In the embodiment of the present invention, the 10 images obtained in step 102 are synthesized.

Specifically, the image matching algorithm can be used to identify the pixel position of the same object in different images, and then the pixels of different objects in different images are merged, and the pixels of different objects in different images are spliced, so that Compose an image.

Further, blurred images in the above N images may also be removed first, and then non-eliminated images in the above N images may be combined to reduce the interference of the blurred images.

Step 104, intercepting the target image area from the synthesized image;

Wherein, the aforementioned target image area is: an image area synthesized from the largest number of images.

For example, assume that step 103 is to synthesize 10 images, and there are image area A, image area B, image area C, and image area D in the synthesized image, wherein image area A is in the 10 images obtained in step 102 There are 10 images in the image area B, 8 images in the 10 images obtained in the step 102 exist, 5 images in the 10 images obtained in the image area C in the step 102 exist, and the image area D is obtained in the step 102. If one of the 10 images exists, the image area A can be considered as the image area synthesized from the largest number of images, and the image area A is intercepted from the image synthesized in step 103 as the above-mentioned target image area.

Step 105, outputting the above-mentioned target image area;

In an embodiment of the present invention, the above-mentioned target image area is output as a photo obtained by taking this time.

Specifically, step 105 may be expressed as storing the above-mentioned target image area, for example, storing the above-mentioned target image area in the above-mentioned electronic terminal.

Further, if the embodiment of the present invention is to perform the photographing process in the screen-off photographing mode, only the above-mentioned target image area may be stored at this time and the above-mentioned target image area will not be displayed. , a reminder signal may also be output, so as to remind the user that the above-mentioned target image area has been output through the reminder signal. Specifically, the type of the reminder signal may be one or a combination of two or more of the following: sound, vibration and indicator light.

It should be noted that the photographing processing method in the embodiment of the present invention can be implemented by a photographing processing device, and the photographing processing device can specifically be integrated in the above-mentioned electronic terminal (such as a smart phone, a tablet computer, a learning machine) in the form of software (such as an App). and other terminals equipped with cameras).

It can be seen from the above that in the solution of the present invention, when receiving a photographing instruction, the camera of the electronic terminal is triggered to perform multiple photographing actions at intervals, and multiple images obtained by multiple photographing are synthesized, and the target image area is intercepted from the synthesized image (that is, the image area synthesized by the largest number of images) and output. Since the time interval between each of the above-mentioned multiple photographs is constant, the number of identical images obtained when the camera is stable must be the largest. Correspondingly, the image areas contained in these identical images must also be among the above-mentioned synthesized images. The target image area, so by intercepting the target image area, most of the noise image area generated by the movement or shaking of the camera can be cut off, which effectively improves the quality of the image obtained by taking pictures.

Embodiment two

The difference between the embodiment of the present invention and the first embodiment is that the embodiment of the present invention removes blurred images before synthesizing images. Referring to Fig. 2, the photographing processing method in the embodiment of the present invention includes:

Step 201, receiving a camera instruction;

Wherein, for the specific implementation process of step 201, reference may be made to the description in step 101 of the embodiment shown in FIG. 1 , which will not be repeated here.

Step 202, triggering the camera of the electronic terminal to perform N times of photographing actions at intervals under the instruction of the above-mentioned photographing instruction, and obtain N images;

Wherein, for the specific implementation process of step 202, reference may be made to the description in step 102 of the embodiment shown in FIG. 1 , and details are not repeated here.

Step 203, detecting whether there is a blurred image in the above N images;

In the embodiment of the present invention, it is detected whether there is a blurred image in the image obtained in step 202, and if there is no blurred image, then step 204 is performed, and if there is a blurred image, then step 205 is performed.

Optionally, detect whether there is an unfocused image in the above-mentioned N images, wherein the above-mentioned unfocused image refers to an image obtained by taking a picture of the above-mentioned camera when it is not in focus (for example, when the focus fails or the focus is not available in the future); if If the unfocused image exists, determine the unfocused image as a blurred image, and determine that there is a blurred image in the N images; if there is no unfocused image, determine that there is no blurred image in the N images.

Of course, the embodiment of the present invention can also detect whether there is a blurred image in the above N images by other methods. For example, since the adjacent pixels in the blurred image are usually relatively smooth, each Each image is processed as follows one by one: calculate the difference between adjacent pixels in each image; if the ratio of the difference smaller than the preset threshold to all the differences in the same image is greater than the preset ratio, it is determined that the corresponding image is A blurred image; if the proportion of the difference values smaller than the above-mentioned preset threshold to all the difference values in the same image is not greater than the above-mentioned preset ratio, then it is determined that the corresponding image is a non-blurred image. After detecting the N images one by one, it can be determined whether there is a blurred image in the N images. The embodiment of the present invention does not limit the specific implementation manner of detecting whether there is a blurred image in the above N images.

Step 204, combining the above N images;

When it is detected in step 203 that there is no blurred image in the above N images, the N images obtained in step 202 are combined, and then step 207 is entered.

Specifically, the image matching algorithm can be used to identify the pixel position of the same object in different images, and then the pixels of different objects in different images are merged, and the pixels of different objects in different images are spliced, so that Compose an image.

Step 205, removing the aforementioned blurred image from the aforementioned N images;

When it is detected in step 203 that blurred images exist in the above N images, removing these blurred images from the above N images can also be understood as discarding these blurred images.

Step 206, combining the images that have not been eliminated in the above N images;

For example, if 9 images are obtained by step 202, and step 203 detects that there are 3 blurred images in the 9 images, then these 3 blurred images are eliminated in step 205, and the remaining 6 images are processed in step 206. synthesis.

Specifically, the image matching algorithm can be used to identify the pixel position of the same object in different images, and then the pixels of different objects in different images are merged, and the pixels of different objects in different images are spliced, so that Compose an image.

Step 207, intercepting the target image area from the synthesized image;

Wherein, the aforementioned target image area is: an image area synthesized from the largest number of images.

Step 208, outputting the above-mentioned target image area;

In the embodiment of the present invention, the above-mentioned target image area is output as a photo obtained by taking this time.

Specifically, step 208 may be expressed as storing the above-mentioned target image area, for example, storing the above-mentioned target image area in the above-mentioned electronic terminal.

Further, if the embodiment of the present invention is to perform the photographing process in the screen-off photographing mode, only the above-mentioned target image area may be stored at this time and the above-mentioned target image area will not be displayed. , a reminder signal may also be output, so as to remind the user that the above-mentioned target image area has been output through the reminder signal. Specifically, the type of the reminder signal may be one or a combination of two or more of the following: sound, vibration and indicator light.

It should be noted that the photographing processing method in the embodiment of the present invention can be implemented by a photographing processing device, and the photographing processing device can specifically be integrated in the above-mentioned electronic terminal (such as a smart phone, a tablet computer, a learning machine) in the form of software (such as an App). and other terminals equipped with cameras).

It can be seen from the above that in the solution of the present invention, when receiving a photographing instruction, the camera of the electronic terminal is triggered to perform multiple photographing actions at intervals, and multiple images obtained by multiple photographing are synthesized, and the target image area is intercepted from the synthesized image (that is, the image area synthesized by the largest number of images) and output. Since the time interval between each of the above-mentioned multiple photographs is constant, the number of identical images obtained when the camera is stable must be the largest. Correspondingly, the image areas contained in these identical images must also be among the above-mentioned synthesized images. The target image area, so by intercepting the target image area, most of the noise image area generated by the movement or shaking of the camera can be cut off, which effectively improves the quality of the image obtained by taking pictures. Further, prior to image synthesis, existing blurred images are eliminated, thereby reducing the interference of blurred images when compositing images, and further improving the quality of images obtained by photographing.

Embodiment three

In the embodiment of the present invention, a camera processing device is described, please refer to FIG. 3 , the camera processing device 300 in the embodiment of the present invention includes:

a receiving unit 301, configured to receive a photographing instruction;

The triggering unit 302 is configured to trigger the camera of the electronic terminal to perform N times of taking pictures at intervals under the instruction of the above-mentioned taking pictures instruction received by the receiving unit 301 to obtain N images, wherein the duration of the above-mentioned interval is a preset value, and the above-mentioned N is a natural number greater than 2;

A synthesis unit 303, configured to synthesize the above N images;

An intercepting unit 304, configured to intercept a target image area from the image synthesized by the synthesizing unit 303, wherein the above target image area is: an image area synthesized by the largest number of images;

The output unit 305 is configured to output the above target image area.

Optionally, the photographing processing device in the embodiment of the present invention further includes: a detection unit, configured to detect whether there is a blurred image in the above N images; the synthesis unit 303 is specifically used to: When there is a blurred image, remove the blurred image from the N images, and then synthesize the images that have not been removed from the N images; when the detection unit detects that there is no blurred image in the N images, combine the above N images are synthesized.

Optionally, the above-mentioned detection unit is specifically used to: detect whether there is an unfocused image in the above-mentioned N images, wherein the above-mentioned unfocused image refers to an image obtained by the above-mentioned camera when it is not in focus; if there is the above-mentioned unfocused image , then determine the above-mentioned unfocused image as a blurred image, and determine that there is a blurred image in the above-mentioned N images; if there is no above-mentioned unfocused image, then determine that there is no blurred image in the above-mentioned N images.

Optionally, the receiving unit 301 is specifically configured to: receive a photographing instruction in a screen-off photographing mode; wherein, the screen-off photographing mode refers to a photographing mode in which the camera operates in the background when the electronic terminal is in a screen-off state.

Optionally, the output unit 305 is specifically configured to: store the above-mentioned target image area; the photographing processing device in the embodiment of the present invention further includes: a reminder unit, configured to output a reminder when the output unit 305 outputs the above-mentioned target image area or after signal, so as to remind the user that the above-mentioned target image area has been output through the above-mentioned reminder signal.

It should be noted that the photographing processing device in the embodiment of the present invention can be specifically integrated in the above-mentioned electronic terminal (such as a smart phone, a tablet computer, a learning machine, etc., equipped with a camera) in the form of software (such as in the form of App).

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

It can be seen from the above that in the solution of the present invention, when receiving a photographing instruction, the camera of the electronic terminal is triggered to perform multiple photographing actions at intervals, and multiple images obtained by multiple photographing are synthesized, and the target image area is intercepted from the synthesized image (that is, the image area synthesized by the largest number of images) and output. Since the time interval between each of the above-mentioned multiple photographs is constant, the number of identical images obtained when the camera is stable must be the largest. Correspondingly, the image areas contained in these identical images must also be among the above-mentioned synthesized images. The target image area, so by intercepting the target image area, most of the noise image area generated by the movement or shaking of the camera can be cut off, which effectively improves the quality of the image obtained by taking pictures.

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

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

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the above integrated units 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 all or 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 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 above-mentioned methods in various embodiments 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.

It should be noted that, for the sake of simplicity of description, the aforementioned method embodiments are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

The above is a description of a photographing processing method and device provided by the present invention. For those of ordinary skill in the art, according to the idea of the embodiment of the present invention, there will be changes in the specific implementation and application range. In summary , the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. A photographic processing method, characterized in that, comprising: Receive camera instructions; Under the instruction of the photographing instruction, the camera of the electronic terminal is triggered to perform N photographing actions at intervals to obtain N images, wherein the duration of the interval is a preset value, and the N is a natural number greater than 2; Synthesizing the N images; Intercepting a target image area from the synthesized image, wherein the target image area is: an image area synthesized by the largest number of images; Output the target image area. 2. The method of claim 1, wherein, After the acquisition of N images, it includes: Detect whether there is a blurred image in the N images; Said synthesizing said N images includes: If there is a blurred image in the N images, then: remove the blurred image from the N images; synthesize images that have not been removed from the N images; If there is no blurred image in the N images, the N images are combined. 3. The method according to claim 2, wherein the detecting whether there is a blurred image in the N images comprises: Detecting whether there is an unfocused image in the N images, wherein the unfocused image refers to an image obtained by taking pictures of the camera without focusing; If there is the unfocused image, determining the unfocused image as a blurred image, and determining that there is a blurred image in the N images; If the unfocused image does not exist, it is determined that there is no blurred image in the N images. 4. The method according to any one of claims 1 to 3, wherein the receiving the photographing instruction is specifically: receiving the photographing instruction in the screen-off photographing mode; Wherein, the off-screen photographing mode refers to a photographing mode in which the camera operates in the background when the electronic terminal is in a screen-off state. 5. The method according to any one of claims 4, wherein the outputting the target image area is specifically: storing the target image area; While or after the outputting the target image area, the method further includes: Outputting a reminder signal, so as to remind the user that the target image area has been output through the reminder signal. 6. A camera processing device, characterized in that it comprises: a receiving unit, configured to receive a photographing instruction; The triggering unit is configured to, under the instruction of the photographing instruction received by the receiving unit, trigger the camera of the electronic terminal to perform N photographing actions at intervals to obtain N images, wherein the duration of the interval is a preset value, The N is a natural number greater than 2; a synthesis unit, configured to synthesize the N images; An intercepting unit, configured to intercept a target image area from the image synthesized by the synthesis unit, wherein the target image area is: an image area synthesized by the largest number of images; an output unit, configured to output the target image area. 7. The photographing processing device according to claim 6, characterized in that, comprising: the photographing processing device further comprises: a detection unit, configured to detect whether there is a blurred image in the N images; The synthesis unit is specifically configured to: when the detection unit detects that there is a blurred image in the N images, remove the blurred image from the N images, and then remove the blurred images from the N images that have not been removed The images are combined; when the detection unit detects that there is no blurred image in the N images, the N images are combined. 8. The photographing processing device according to claim 7, wherein the detection unit is specifically configured to: detect whether there is an unfocused image in the N images, wherein the unfocused image refers to the camera The image obtained by taking pictures without focusing; if there is the unfocused image, then determine the unfocused image as a blurred image, and determine that there is a blurred image in the N images; if there is no said unfocused image image, it is determined that there is no blurred image in the N images. 9. The photographing processing device according to any one of claims 6 to 8, wherein the receiving unit is specifically configured to: receive a photographing instruction in a screen-off photographing mode; Wherein, the off-screen photographing mode refers to a photographing mode in which the camera operates in the background when the screen of the electronic terminal is off. 10. The photographing processing device according to claim 9, wherein the output unit is specifically configured to: store the target image area; The photographing processing device also includes: A reminder unit, configured to output a reminder signal when the output unit outputs the target image area or after, so as to remind the user that the target image area has been output through the reminder signal.