CN113014791A - Image generation method and device - Google Patents
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- CN113014791A CN113014791A CN201911327922.2A CN201911327922A CN113014791A CN 113014791 A CN113014791 A CN 113014791A CN 201911327922 A CN201911327922 A CN 201911327922A CN 113014791 A CN113014791 A CN 113014791A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/64—Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2621—Cameras specially adapted for the electronic generation of special effects during image pickup, e.g. digital cameras, camcorders, video cameras having integrated special effects capability
Abstract
The present disclosure provides an image generation method, apparatus, computer device and computer readable medium. The method comprises the following steps: acquiring a first image by using a first image acquisition device, and acquiring a second image by using a second image acquisition device, wherein the viewing ranges of the first image and the second image are the same, and the first image acquisition device is an infrared image acquisition device; and processing the second image according to the first image to generate a third image comprising a target object in the first image, wherein the target object is an object with the temperature higher than a preset temperature, and the other parts except the target object in the third image present a blurring effect. The shooting effect of highlighting the target objects with the temperature and blurring other parts can be realized, the entertainment and interest of shooting are increased, and when a plurality of target objects are provided, the shooting effect of focusing a plurality of objects can be realized.
Description
Technical Field
The present disclosure relates to the field of image processing technologies, and in particular, to an image generation method, an image generation device, a computer device, and a computer readable medium.
Background
In the current mobile phone, a rear camera can be used for focusing an object, the focused object is clearly displayed, and areas except the focused object are displayed in a blurring mode; the front camera can also be used for clearly displaying the human face, and the areas except the focused human face are displayed in a blurring mode. The existing shooting scheme can only focus on a certain object or human face, and the shooting effect is single.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, the present disclosure provides an image generation method, apparatus, computer device and computer readable medium.
In a first aspect, an embodiment of the present disclosure provides an image generation method, including:
acquiring a first image by using a first image acquisition device, and acquiring a second image by using a second image acquisition device, wherein the viewing ranges of the first image and the second image are the same, and the first image acquisition device is an infrared image acquisition device;
and processing the second image according to the first image to generate a third image comprising a target object in the first image, wherein the target object is an object with the temperature higher than a preset temperature, and the other parts except the target object in the third image present a blurring effect.
Preferably, the processing the second image according to the first image to generate a third image including the target object in the first image comprises:
determining a position of the target object in the first image;
according to the position of the target object in the first image, taking out the image of the corresponding area from the second image, and caching the taken-out image;
blurring the residual area of the second image, wherein the residual area is an area except the extracted image;
and filling the extracted image into the second blurred image to generate a third image.
Preferably, before blurring the remaining region of the second image, the method further includes: acquiring a virtualization grade;
the blurring the remaining region of the second image comprises:
and blurring the residual area of the second image according to the blurring level.
Preferably, before the acquiring the first image by the first image acquiring device, the method includes: acquiring infrared light receiving parameters;
the acquiring of the first image with the first image acquiring device includes: and instructing a first image acquisition device to acquire a first image according to the infrared light receiving parameter.
Preferably, the first image capturing device has a larger field of view than the second image capturing device.
Preferably, the method further comprises: determining depth information of the first image;
after generating the third image including the target object, further comprising:
acquiring a designated area in the third image;
restoring the virtualized area in the third image according to the depth information, and virtualizing other areas except the designated area to generate a fourth image.
Preferably, after generating the third image including the target object, the method further includes:
when a selection instruction for selecting a target object in the third image is received, determining and displaying a temperature of the selected target object.
In a second aspect, an embodiment of the present disclosure provides an image generating apparatus, including:
the control module is used for indicating a first image acquisition device to acquire a first image and simultaneously acquiring a second image by using a second image acquisition device, wherein the viewing ranges of the first image and the second image are the same, and the first image acquisition device is an infrared image acquisition device;
and the generating module is used for processing the second image according to the first image to generate a third image comprising a target object in the first image, wherein the target object is an object with the temperature higher than a preset temperature, and in the third image, the other parts except the target object present a blurring effect.
In a third aspect, an embodiment of the present disclosure provides a computer device, including: one or more processors; a storage device, wherein one or more programs are stored thereon; the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the image generation method as described in the first aspect.
In a fourth aspect, the disclosed embodiments also provide a computer-readable medium on which a computer program is stored, wherein the computer program, when executed, implements the image generation method according to the first aspect.
According to the image generation method provided by the embodiment of the disclosure, a first image acquisition device is used for acquiring a first image, and a second image acquisition device is used for acquiring a second image, wherein the framing ranges of the first image and the second image are the same, and the first image acquisition device is an infrared image acquisition device; and processing the second image according to the first image to generate a third image comprising a target object in the first image, wherein the target object is an object with the temperature higher than a preset temperature, and the other parts except the target object in the third image present a blurring effect. The embodiment of the disclosure can realize the shooting effect of highlighting and blurring the target object with temperature, thereby increasing the entertainment and interest of shooting, and in some scenes, when a plurality of target objects are provided, the shooting effect of focusing a plurality of objects can be realized.
Drawings
Fig. 1 is a flowchart of an image generation method according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of an image generation method according to another embodiment of the present disclosure;
fig. 3a and 3b are schematic views of a terminal-mounted camera according to still another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an image generating apparatus according to still another embodiment of the present disclosure.
Detailed Description
Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but which may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Embodiments described herein may be described with reference to plan and/or cross-sectional views in light of idealized schematic illustrations of the disclosure. Accordingly, the example illustrations can be modified in accordance with manufacturing techniques and/or tolerances. Accordingly, the embodiments are not limited to the embodiments shown in the drawings, but include modifications of configurations formed based on a manufacturing process. Thus, the regions illustrated in the figures have schematic properties, and the shapes of the regions shown in the figures illustrate specific shapes of regions of elements, but are not intended to be limiting.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
An embodiment of the present disclosure provides an image generation method, as shown in fig. 1, the image generation method includes the following steps:
and 11, acquiring a first image by using the first image acquisition device, and acquiring a second image by using the second image acquisition device.
The first image acquisition device is an infrared image acquisition device, namely an infrared camera, and the second image acquisition device is a common camera and comprises a color camera or a black and white camera. The first image acquisition device and the second image acquisition device are integrated in a mobile terminal or other intelligent terminals. The embodiment of the present disclosure uses the second image capturing device as an example to discuss the color camera in detail.
In this step, the infrared camera and the color camera are simultaneously started, the viewing range of the first image is the same as that of the second image, and the first landscape is photographed at the same time. As shown in fig. 3a and 3B, the infrared camera a and the color camera B are installed on the same side of the terminal, and there are two arrangements, i.e., a horizontal arrangement in fig. 3a and a vertical arrangement in fig. 3B. When the infrared camera takes a picture, the color camera also takes a picture. The embodiment of the present disclosure takes a landscape in which an infrared camera and a color camera take pictures simultaneously as an example of a first landscape, and details are described.
The infrared camera irradiates an object by using infrared rays, the infrared rays are subjected to diffuse reflection and are received by the monitoring camera to form an image. The infrared camera can acquire images of objects with the temperature higher than the preset temperature, so that the infrared camera can identify the objects with the temperature in the first landscape, namely, the target objects can be determined, and the infrared camera can acquire the first images including the target objects in the first landscape, wherein the target objects at least include one. And simultaneously, acquiring a second image of the first landscape by using the color camera, wherein the target object in the second image is the same as the target object in the first image.
And step 12, processing the second image according to the first image to generate a third image including the target object in the first image, wherein the other parts except the target object in the third image present blurring effect.
It should be noted that the target object is an object whose temperature is greater than a preset temperature, if the infrared camera takes the first image, the common camera takes the second image, and accordingly, a third image is generated.
The image generation method provided by the embodiment of the disclosure can realize the shooting effect of highlighting the target object with temperature and blurring other parts, thereby increasing the entertainment and interest of shooting, and when a plurality of target objects are provided, the shooting effect of focusing a plurality of objects can be realized.
In some embodiments, as shown in fig. 2, the processing the second image according to the first image to generate a third image including the target object in the first image (i.e., step 12) includes the steps of:
in step 121, the position of the target object in the first image is determined.
In this step, the position of the target object determined in step 11 in the first image is determined, which can be represented by the pixel coordinates of the target object in the first image.
And step 122, taking out the image of the corresponding area from the second image according to the position of the target object in the first image, and caching the taken-out image.
In this step, since the first image and the second image are captured synchronously and the viewing range of the first image and the viewing range of the second image are completely the same, the position of the target object in the first image is the position of the target object in the second image. Therefore, the image of the target object can be extracted from the same area in the second image, and the extracted image is buffered. For example, objects with temperature in the first landscape include a person and a hot pot in use, the target object is determined to be the hot pot and the person, and the images of the hot pot and the person are taken out and cached in the area of the same position in the second image according to the positions of the hot pot and the person in the first image.
Step 123, blurring the remaining area of the second image.
In this step, the remaining region is a region other than the image of the extracted target object. The remaining area of the second image may be blurred according to a particular blurring algorithm. For example, the region other than the chafing dish and the person in the second image is blurred.
In some embodiments, before blurring the remaining region of the second image (i.e. step 123), the method further includes: and acquiring a blurring grade.
The blurring the remaining area of the second image (i.e., step 123) includes: blurring the remaining area of the second image according to the blurring level. The higher the blurring grade is, the more fuzzy the blurred area is, and the more obvious the blurring effect is; the lower the blurring level, the clearer the blurred region, and the less noticeable the blurring effect.
And step 124, filling the extracted image into the blurred second image to generate a third image.
In this step, the extracted image is an image of an object with temperature (i.e., a target object), and the second image after blurring is filled with the extracted image, so that a third image having an imaging effect of highlighting the target object with temperature and blurring the other portion can be generated. For example, the previously fetched images of the chafing dish and the person are filled into the corresponding areas of the blurred second image.
In some embodiments, before the acquiring the first image with the first image acquiring device (i.e. step 11), the method further includes: and acquiring infrared light receiving parameters. Accordingly, the acquiring a first image with a first image acquiring device (i.e., step 11) includes: and instructing a first image acquisition device to acquire a first image according to the infrared light receiving parameter.
The infrared light receiving parameter is used for indicating a critical value that the infrared camera can receive infrared light emitted by an object, the infrared light receiving parameter corresponds to a preset temperature in the infrared camera, and the preset temperature can be adjusted by adjusting the infrared light receiving parameter. When the intensity of the infrared light emitted by the received object is greater than the infrared light receiving parameter, the infrared camera can acquire the image of the object, and when the intensity of the infrared light emitted by the received object or portrait is less than the infrared light receiving parameter, the infrared camera cannot acquire the image of the object.
In this step, the infrared light receiving parameter of the infrared camera may be adjusted, and the first image obtaining device is instructed to shoot according to the infrared light receiving parameter, so as to adjust the target object in the first image. When the infrared light reception parameter setting is large, the number of target objects in the first image is small; when the infrared light reception parameter setting is small, the number of target objects in the first image is large. Therefore, the target object in the first image can be determined by adjusting the infrared light receiving parameters of the infrared camera, so that the finally generated third image can selectively display the object with the temperature. The user can adjust the human-computer interaction interface of the image generation device in a sliding bar mode to set infrared light receiving parameters of the infrared camera.
In order to ensure accuracy in filling the retrieved image of the target object back into the blurred second image, and to reduce errors, in some embodiments, the field of view of the first image acquisition device is larger than the field of view of the second image acquisition device.
It should be noted that, the flow of the above embodiment is also applicable to the case where the infrared camera and the color camera are simultaneously turned on, the infrared camera captures a video, and the color camera captures a video. Namely, if the infrared camera shoots a first video aiming at the first landscape, the common camera shoots a second video aiming at the second landscape, certain frame images with the same pictures in the first video and the second video are respectively intercepted, and a frame image with highlighted object and blurred other parts with temperature is generated according to the implementation of the process. And in analogy, processing each frame of image of the second video according to the method to generate a third video with highlighted objects with temperature and blurred other parts.
The image generation means also has a refocus function for the generated third image with respect to the scene in which the image is captured.
In some embodiments, the image generation method further comprises: depth information for the first image is determined.
In this step, the depth of field information corresponding to the first image, that is, the depth of field information corresponding to the image captured by the infrared camera is acquired. The depth information is a range of distances between the front and rear of the subject measured at the front edge of the camera lens or other imaging device, where a sharp image can be obtained. The shallower the depth of field, the stronger the blurring.
After generating the third image including the target object, the image generating method further includes: and acquiring a designated area in the third image, restoring the virtualized area in the third image according to the depth information, and virtualizing other areas except the designated area to generate a fourth image.
In this step, if the user is not satisfied with the generated third image, the object in the third image may be refocused, and the background of the region other than the region where the refocused object is located may be blurred. Specifically, the user may click on a corresponding area in the third image, and the designated area is the refocused area.
The image generation means also has a function of displaying the temperature of the target object for the generated third image with respect to the scene in which the image is captured.
In some embodiments, after generating the third image including the target object, further comprising:
when a selection instruction for selecting a target object in the third image is received, the temperature of the selected target object is determined and displayed.
In this step, the infrared camera may receive the intensity of the infrared light emitted by each object in the first landscape, and the image generation device may determine the temperature of each object according to the intensity of the infrared light emitted by each object or portrait. The user may view the temperature of the clicked target object by clicking the target object in the third image. If the user clicks a hot pot in the third image, the temperature of the hot pot may be displayed in the third image as 90 degrees.
In some embodiments, in a night scene, the infrared camera can be independently opened to take a picture or take a video, the image generation device takes out an image of an object with temperature in the taken image, the rest area is blackened, and the taken image with temperature is backfilled into the blackened image, so that the effects of highlighting the object with temperature and blacking other parts are achieved, and the entertainment and interest of the taking are increased.
According to the image generation method provided by the embodiment of the disclosure, a first image acquisition device is used for acquiring a first image, and a second image acquisition device is used for acquiring a second image, wherein the framing ranges of the first image and the second image are the same, and the first image acquisition device is an infrared image acquisition device; and processing the second image according to the first image to generate a third image comprising a target object in the first image, wherein the target object is an object with the temperature higher than a preset temperature, and the other parts except the target object in the third image present a blurring effect. The embodiment of the disclosure can realize the shooting effect of highlighting and blurring the target object with temperature, thereby increasing the entertainment and interest of shooting, and when a plurality of target objects are provided, the shooting effect of focusing a plurality of objects can be realized.
Based on the same technical concept, an embodiment of the present disclosure further provides an image generating apparatus, as shown in fig. 4, the image generating apparatus includes a control module 1 and a first generating module 2, the control module 1 is configured to instruct a first image acquiring device to acquire a first image, and simultaneously acquire a second image by using a second image acquiring device, where viewing ranges of the first image and the second image are the same, and the first image acquiring device is an infrared image acquiring device.
The first generating module 2 is configured to process the second image according to the first image to generate a third image including a target object in the first image, where the target object is an object whose temperature is greater than a preset temperature, and in the third image, the other part except the target object shows a blurring effect.
In some embodiments, the first generation module 2 is configured to determine a position of the target object in the first image.
And according to the position of the target object in the first image, taking out the image of the corresponding area from the second image, and caching the taken-out image.
And blurring the residual area of the second image, wherein the residual area is an area except the extracted image.
And filling the extracted image into the second blurred image to generate a third image.
In some embodiments, the first generating module 2 is configured to obtain a blurring level.
The first generating module 2 is configured to perform blurring on the remaining area of the second image according to the blurring level.
In some embodiments, the apparatus further comprises:
the first acquisition module is used for acquiring infrared light receiving parameters.
The control module 1 is configured to instruct a first image obtaining device to obtain a first image according to the infrared light receiving parameter.
In some embodiments, the first image acquisition device has a larger field of view than the second image acquisition device.
In some embodiments, the apparatus further comprises:
the determining module is used for determining the depth information of the first image.
And the second acquisition module is used for acquiring the designated area in the third image.
The second generating module is used for restoring the virtualized area in the third image according to the depth information and virtualizing other areas except the designated area to generate a fourth image.
In some embodiments, the apparatus further comprises:
the display module is used for determining and displaying the temperature of the selected target object when receiving a selection instruction for selecting the target object in the third image.
An embodiment of the present disclosure further provides a computer device, including: one or more processors and storage; the storage device stores one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors are enabled to implement the image generation method provided in the foregoing embodiments.
The disclosed embodiments also provide a computer readable medium, on which a computer program is stored, wherein the computer program, when executed, implements the image generation method provided by the foregoing embodiments.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods disclosed above, functional modules/units in the apparatus, may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted in a generic and descriptive sense only and not for purposes of limitation. In some instances, features, characteristics and/or elements described in connection with a particular embodiment may be used alone or in combination with features, characteristics and/or elements described in connection with other embodiments, unless expressly stated otherwise, as would be apparent to one skilled in the art. It will, therefore, be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims.
Claims (10)
1. An image generation method, comprising:
acquiring a first image by using a first image acquisition device, and acquiring a second image by using a second image acquisition device, wherein the viewing ranges of the first image and the second image are the same, and the first image acquisition device is an infrared image acquisition device;
and processing the second image according to the first image to generate a third image comprising a target object in the first image, wherein the target object is an object with the temperature higher than a preset temperature, and the other parts except the target object in the third image present a blurring effect.
2. The method of claim 1, wherein said processing the second image from the first image to generate a third image comprising a target object in the first image comprises:
determining a position of the target object in the first image;
according to the position of the target object in the first image, taking out the image of the corresponding area from the second image, and caching the taken-out image;
blurring the residual area of the second image, wherein the residual area is an area except the extracted image;
and filling the extracted image into the second blurred image to generate a third image.
3. The method of claim 2, wherein prior to blurring the remaining region of the second image, further comprising: acquiring a virtualization grade;
the blurring the remaining region of the second image comprises:
and blurring the residual area of the second image according to the blurring level.
4. The method of claim 1, wherein prior to acquiring the first image with the first image acquisition device, comprising: acquiring infrared light receiving parameters;
the acquiring of the first image with the first image acquiring device includes: and instructing a first image acquisition device to acquire a first image according to the infrared light receiving parameter.
5. The method of claim 1, wherein a field of view of the first image acquisition device is greater than a field of view of the second image acquisition device.
6. The method of claim 1, wherein the method further comprises:
determining depth information of the first image;
after generating the third image including the target object, further comprising:
acquiring a designated area in the third image;
restoring the virtualized area in the third image according to the depth information, and virtualizing other areas except the designated area to generate a fourth image.
7. The method of claim 1, wherein after generating the third image including the target object, further comprising:
when a selection instruction for selecting a target object in the third image is received, determining and displaying a temperature of the selected target object.
8. An image generation apparatus comprising:
the control module is used for indicating a first image acquisition device to acquire a first image and simultaneously acquiring a second image by using a second image acquisition device, wherein the viewing ranges of the first image and the second image are the same, and the first image acquisition device is an infrared image acquisition device;
and the generating module is used for processing the second image according to the first image to generate a third image comprising a target object in the first image, wherein the target object is an object with the temperature higher than a preset temperature, and in the third image, the other parts except the target object present a blurring effect.
9. A computer device, comprising:
one or more processors;
a storage device, wherein one or more programs are stored thereon;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the image generation method of any of claims 1-7.
10. A computer-readable medium, on which a computer program is stored, wherein the program, when executed, implements the image generation method of any of claims 1-7.
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