CN107817963B - Image display method, mobile terminal and computer readable storage medium - Google Patents
Image display method, mobile terminal and computer readable storage medium Download PDFInfo
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- CN107817963B CN107817963B CN201711026969.6A CN201711026969A CN107817963B CN 107817963 B CN107817963 B CN 107817963B CN 201711026969 A CN201711026969 A CN 201711026969A CN 107817963 B CN107817963 B CN 107817963B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/90—Determination of colour characteristics
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
- G06V40/164—Detection; Localisation; Normalisation using holistic features
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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
- H04N23/80—Camera processing pipelines; Components thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30196—Human being; Person
- G06T2207/30201—Face
Abstract
The invention provides an image display method, a mobile terminal and a computer readable storage medium, wherein the method comprises the following steps: acquiring camera information corresponding to a target image, wherein the camera information is used for representing that a camera for shooting the target image is a front camera or a rear camera; determining a display color matrix corresponding to the target image according to a preset corresponding relation between camera information and the display color matrix of the display screen; displaying the target image on a display screen according to the display color matrix corresponding to the target image; the front camera and the rear camera correspond to different display color matrixes respectively. According to the embodiment of the invention, the display color matrix of the display screen is set based on the camera information, and the display screen can be adjusted and optimized in a targeted manner, so that the display of the display screen is adaptive to the image shooting scene, the display of the image has good adaptability, and a better display effect is achieved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an image display method, a mobile terminal, and a computer-readable storage medium.
Background
At present, the camera takes a great position in mobile terminal, so that the imaging effect and the display effect of the shot picture are improved, and the improvement of the user experience is very important.
At present, mobile terminals such as mobile phones and tablet computers generally have front and rear cameras. In actual photographing use, the front camera and the rear camera are used with a certain emphasis, for example, the rear camera is generally used for photographing scenery or people with scenery (wherein the proportion of a single person occupying the picture is not high), and is mostly used for photographing at a long distance; the front-facing camera is generally used for close-distance people to take self-timer, wherein the proportion of a single person in the whole picture is high; therefore, in order to make the display effect of the photos better, the display styles of the photos taken by the front and rear cameras should be heavier.
However, in the prior art, although the imaging effect of the cameras is improved, when a picture is displayed, because the display screen usually adopts a fixed display color system, the pictures taken by the front camera and the rear camera are displayed on the display screen by adopting the same display color system, so that the display effect of the pictures taken by the front camera and the rear camera is influenced.
Disclosure of Invention
The invention provides an image display method, a mobile terminal and a computer readable storage medium, which aim to solve the problem that pictures taken by front and rear cameras in the prior art cannot respectively have good display effects when being displayed.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides an image display method applied to a mobile terminal, where the mobile terminal is provided with a display screen, and the method includes:
acquiring camera information corresponding to a target image, wherein the camera information is used for representing that a camera for shooting the target image is a front camera or a rear camera;
determining a display color matrix corresponding to the target image according to a preset corresponding relation between camera information and the display color matrix of the display screen;
displaying the target image on a display screen according to the display color matrix corresponding to the target image;
the front camera and the rear camera correspond to different display color matrixes respectively.
In a second aspect, an embodiment of the present invention provides a mobile terminal, where a display screen is disposed on the mobile terminal, and the mobile terminal includes:
the first acquisition module is used for acquiring camera information corresponding to a target image, and the camera information is used for representing that a camera for shooting the target image is a front camera or a rear camera;
the determining module is used for determining a display color matrix corresponding to the target image according to the preset corresponding relation between the camera information and the display color matrix of the display screen;
the display module is used for displaying the target image on the display screen according to the display color matrix corresponding to the target image;
the front camera and the rear camera correspond to different display color matrixes respectively.
In a third aspect, an embodiment of the present invention provides a mobile terminal, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the image display method.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the image display method described above.
In the embodiment of the invention, the camera information corresponding to the target image is obtained; determining a display color matrix corresponding to the target image according to a preset corresponding relation between camera information and the display color matrix of the display screen; the target image is displayed on the display screen according to the display color matrix corresponding to the target image, so that the display color matrix of the display screen is set based on the camera information, the display screen can be adjusted and optimized in a targeted mode, the display screen can display images and correspond to the image shooting scene, the images can be displayed in a good adaptability, and a better display effect is achieved.
Drawings
FIG. 1 is a flow chart of an image display method according to an embodiment of the present invention;
FIG. 2 is a second flowchart of an image display method according to an embodiment of the present invention;
FIG. 3 is a third schematic flow chart of an image displaying method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a hardware structure of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a flowchart of an image display method according to an embodiment of the invention is shown.
The embodiment of the invention provides an image display method, which is applied to a mobile terminal, wherein a display screen is arranged on the mobile terminal, and the method can comprise the following steps:
In this step, when a user selects an image, i.e., a target image, and needs to display the image, the camera information corresponding to the target image is acquired, and the camera used for shooting the target image is determined to be a front camera or a rear camera, so that the subsequent steps can conveniently set the display color matrix of the display screen based on the camera information. In the embodiment of the present invention, the target image may be an image obtained by shooting by the local computer, or a shot image obtained by downloading from a cloud or an application program, and of course, the target image may also be an image obtained by performing one or more editing operations such as capturing, rotating, and doodling on the two images.
And 102, determining a display color matrix corresponding to the target image according to the preset corresponding relation between the camera information and the display color matrix of the display screen.
In the embodiment of the invention, the corresponding relation between the camera information and the display color Matrix (color correction Matrix, CCM) of the display screen is preset, and the corresponding relation can be determined by multiple groups of experimental data, can be set based on historical experience, and can be set by a user based on personal preference; the correspondence relationship is stored in advance in a corresponding EEPROM (Electrically Erasable Programmable Read only memory) on the mobile terminal. The front camera and the rear camera correspond to different display color matrixes respectively. In this step, the display color matrix corresponding to the target image is determined based on the camera information corresponding to the target image acquired in step 101, so that the display color matrix of the display screen can be adapted to the camera information when the target image is shot, the display screen has good adaptability to the display of the target image, and the target image is ensured to have good display effect.
And 103, displaying the target image on the display screen according to the display color matrix corresponding to the target image.
In this step, the display color matrix of the display screen is set based on the display color matrix corresponding to the target image determined in step 102, and the target image is displayed on the set display screen, so that the display screen can be optimized based on the camera information corresponding to the icon image, and is adapted to the scene and style of the target image, so that the target image has a better display effect.
In the embodiment of the invention, the camera information corresponding to the target image is obtained; determining a display color matrix corresponding to the target image according to a preset corresponding relation between camera information and the display color matrix of the display screen; the target image is displayed on the display screen according to the display color matrix corresponding to the target image, so that the display color matrix of the display screen is set based on the camera information, the display screen can be adjusted and optimized in a targeted mode, the display screen can display images and correspond to the image shooting scene, the images can be displayed in a good adaptability, and a better display effect is achieved.
In the embodiment of the present invention, a plurality of implementation manners may be adopted to achieve the purpose of acquiring the camera information corresponding to the target image.
Implementation mode one
In the first implementation manner, a flag bit can be added to the shooting parameter information of the image; in the process of image shooting, corresponding camera information is added into shooting parameter information of an image when the image is generated, so that the corresponding camera information can be directly extracted from the shooting parameter information when the image needs to be displayed.
Specifically, before the step of obtaining the camera information corresponding to the target image in step 101, the method may further include: acquiring image data shot by a camera and camera information when the image data is shot; performing image signal processing on the image data to generate a target image; storing the camera information into shooting parameter information corresponding to the target image; the method for acquiring the camera information corresponding to the target image comprises the following steps: and extracting the camera information from the shooting parameter information corresponding to the target image.
In the embodiment of the invention, when shooting is finished, one frame of image data is obtained, the camera in the shooting of the image data is judged to be a front camera or a rear camera, and the camera information is determined. Here, in order to extract the camera information in the subsequent steps, the camera information is represented by corresponding mark codes; specifically, if the Camera at the time of image data capturing is a front Camera, this is represented by "Camera _ flag ═ 1"; if the camera at the time of image data shooting is not a front camera, that is, a rear camera, it is represented by "camera _ flag is 0". After the Image data is acquired, Image Signal Processing (ISP) multi-channel process Processing including algorithm Processing such as dead pixel removal, gamma correction, color enhancement, denoising and the like is carried out on the Image data through an Image sensor, so that intermediate Image data in a YUV format is acquired; and then, demosaicing the intermediate image data through a DSP (Digital Signal Processing), interpolating RGB (red, green and blue) three-component colors on each pixel of the intermediate image data, then compressing and converting to obtain a target image, and storing (writing) camera information into shooting parameter information corresponding to the target image when compressing and converting to the target image. Therefore, when a user selects a target image and needs to display the target image, the camera information can be directly extracted from the shooting parameter information corresponding to the target image, so that the camera information corresponding to the target image can be quickly acquired, and the subsequent steps can conveniently set the display color matrix of the display screen based on the camera information. In the embodiment of the present invention, the shooting parameter information may adopt an EXIF (Exchangeable Image File) format. In addition, in the embodiment of the present invention, the target image may adopt a JPEG format.
Implementation mode two
The second implementation mode is optimized as the first implementation mode, a photoelectric sensor which is started simultaneously with the front camera can be arranged on the mobile terminal, and then the camera information during image data shooting is accurately determined by detecting the starting condition of the photoelectric sensor during image data shooting.
Specifically, a photoelectric sensor is arranged on the mobile terminal, and when the front camera is started, the photoelectric sensor is started along with the front camera; the step of acquiring the camera information when the image data is captured may include: acquiring starting information of a photoelectric sensor; and determining the camera information when the image data is shot according to the starting information.
In the embodiment of the invention, the photoelectric sensor is arranged on the mobile terminal at a position close to the front camera, and the photoelectric sensor is started when the front camera is started. If the starting information of the photoelectric sensor is opening information, determining that the camera information during image data shooting is characterized as a front camera, specifically a mark code corresponding to the front camera; and if the starting information of the photoelectric sensor is closing information, determining that the camera information during image data shooting is characterized as a rear camera, specifically a mark code corresponding to the rear camera. In this embodiment, the start information of the photoelectric sensor is directly acquired, so that the camera information during image data shooting can be determined more accurately and rapidly, and subsequent steps can be conveniently set for the display color matrix of the display screen based on the camera information.
In a second implementation manner, before the step of obtaining camera information corresponding to the target image in step 101, the method may further include: when the front camera shoots, acquiring environmental parameters detected by a photoelectric sensor; storing the environment parameters into shooting parameter information corresponding to the target image; step 103, displaying the target image on the display screen according to the display color matrix corresponding to the target image, and may further include: extracting environmental parameters in shooting parameter information corresponding to the target image; and adjusting the display parameters of the display screen according to the extracted environmental parameters.
In the embodiment of the invention, the photoelectric sensor can independently detect the environmental parameters such as brightness, color temperature and the like, when the front-facing camera shoots, the photoelectric sensor starts and detects the environmental parameters when the front-facing camera shoots, then the environmental parameters are obtained and stored in shooting parameter information corresponding to a target image, and when the display screen displays the target image, the display parameters of the display screen are adjusted according to the environmental parameters. Therefore, when the target image is displayed on the display screen, the display screen can be further optimized based on the environmental parameters during shooting, so that the target image has a better display effect.
Implementation mode three
In the third implementation manner, based on the use scene bias of the front camera and the rear camera and different consideration of the proportion of the human body in the image obtained by shooting the front camera and the rear camera, the camera information corresponding to the target image can be determined by detecting the area ratio of the human face image area in the target image.
Specifically, in step 101, the step of acquiring camera information corresponding to the target image may include: determining a target face in a target image; calculating the area ratio of a face image area of the target face in the target image; if the area ratio is larger than or equal to a preset threshold value, determining that a camera with camera information representing shooting target images is a front-facing camera; and if the area ratio value is smaller than the preset threshold value, determining that the camera with the camera information representing shooting target images is a rear camera.
In the embodiment of the invention, a target face in a target image is detected through a face recognition technology, the area ratio of a face image area of the target face in the target image relative to the target image is calculated, and if the area ratio is greater than or equal to a preset threshold value, camera information represents that a camera for shooting the target image is a front-facing camera; and if the area ratio is smaller than the preset threshold value, the camera information represents that the camera for shooting the target image is a rear camera. The preset threshold may be determined by multiple sets of experimental data, or may be set based on historical experience. In addition, considering that more than two faces may exist in the target image, in this case, the face with the largest face image area among the more than two faces may be selected as the target face. Of course, as another preferred embodiment, if there are more than two faces in the target image, the more than two faces may be respectively used as the target faces, and in this case, the step of calculating the area ratio of the face image region of the target face in the target image may include: first area ratio values of the face image areas of more than two target faces in the target image are calculated respectively, and the average value of the two first area ratio values is determined as the area ratio value.
Fig. 2 is a second schematic flow chart of the image display method according to the embodiment of the invention. In one embodiment of the present invention, the image display method may include the steps of:
In this step, when the shooting is completed, a frame of image data is acquired, and it is determined that the camera during the shooting of the image data is a front-facing camera or a rear-facing camera, and camera information used for representing that the camera during the shooting is the front-facing camera or the rear-facing camera is determined. Here, in order to extract the camera information in the subsequent steps, the camera information is represented by corresponding mark codes; specifically, if the Camera at the time of image data capturing is a front Camera, this is represented by "Camera _ flag ═ 1"; if the camera at the time of image data shooting is not a front camera, that is, a rear camera, it is represented by "camera _ flag is 0".
In this step, a flag bit is added to the shooting parameter information of the image to store the camera information. Specifically, after image data are obtained, the image sensor performs ISP multi-process processing on the image data, including algorithm processing such as dead pixel removal, gamma correction, color enhancement, denoising and the like, so as to obtain intermediate image data in a YUV format; and then demosaicing the intermediate image data through the DSP, interpolating RGB (red, green and blue) three-component colors on each pixel of the intermediate image data, then compressing and converting to obtain a target image, and storing (writing) camera information into shooting parameter information corresponding to the target image when compressing and converting to the target image. In the embodiment of the present invention, the shooting parameter information may adopt an EXIF format. In addition, in the embodiment of the present invention, the target image may adopt a JPEG format.
When a user selects a target image and needs to display the target image, the camera information can be directly extracted from the shooting parameter information corresponding to the target image, so that the camera information corresponding to the target image can be quickly acquired, and the subsequent steps can conveniently set the display color matrix of the display screen based on the camera information.
And 204, determining a display color matrix corresponding to the target image according to the preset corresponding relation between the camera information and the display color matrix of the display screen.
In the embodiment of the invention, the corresponding relation between the camera information and the display color matrix of the display screen is preset, and the corresponding relation can be determined by a plurality of groups of experimental data, can also be set based on historical experience, and can also be set by a user based on personal preference; the corresponding relation is stored in the corresponding EEPROM of the mobile terminal in advance. The front camera and the rear camera correspond to different display color matrixes respectively. In this step, the display color matrix corresponding to the target image is determined based on the camera information corresponding to the target image acquired in step 203, so that the display color matrix of the display screen can be adapted to the camera information when the target image is shot, the display screen has good adaptability to the display of the target image, and the target image is ensured to have good display effect.
And step 205, displaying the target image on the display screen according to the display color matrix corresponding to the target image.
In this step, the display color matrix of the display screen is set based on the display color matrix corresponding to the target image determined in step 204, and the target image is displayed on the set display screen, so that the display screen can be optimized based on the camera information corresponding to the icon image and is adapted to the scene and style of the target image, so that the target image has a better display effect.
In the embodiment of the invention, the image data shot by the camera and the camera information when the image data is shot are obtained; performing image signal processing on the image data to generate a target image; storing the camera information into shooting parameter information corresponding to the target image; extracting camera information from shooting parameter information corresponding to a target image; determining a display color matrix corresponding to the target image according to a preset corresponding relation between camera information and the display color matrix of the display screen; the target image is displayed on the display screen according to the display color matrix corresponding to the target image, so that the camera information corresponding to the target image can be quickly acquired before the target image is displayed on the display screen, the display color matrix of the display screen is set based on the camera information, the display screen can be adjusted and optimized in a targeted mode, the display of the display screen is adaptive to the image shooting scene, the display of the image has good adaptability, and a better display effect is achieved.
Fig. 3 is a third schematic flow chart of the image display method according to the embodiment of the invention. In another embodiment of the invention, a photoelectric sensor is arranged on the mobile terminal, and when the front camera is started, the photoelectric sensor is started along with the front camera; the image display method may include the steps of:
In this step, when the shooting is completed, one frame of image data is acquired, and the start information of the photoelectric sensor when the image data is shot is determined. If the front camera is started, the starting information of the photoelectric sensor is opening information, and if the rear camera is started, the starting information of the photoelectric sensor is closing information.
In the step, if the starting information of the photoelectric sensor is opening information, the camera information characterization during image data shooting is determined to be a front-facing camera; and if the starting information of the photoelectric sensor is closing information, determining that the camera information during image data shooting is characterized as a rear camera. Here, in order to extract the camera information in the subsequent steps, the camera information is represented by corresponding mark codes; specifically, if the Camera at the time of image data capturing is a front Camera, this is represented by "Camera _ flag ═ 1"; if the camera at the time of image data shooting is not a front camera, that is, a rear camera, it is represented by "camera _ flag is 0".
In this step, a flag bit is added to the shooting parameter information of the image to store the camera information. Specifically, after image data are obtained, the image sensor performs ISP multi-process processing on the image data, including algorithm processing such as dead pixel removal, gamma correction, color enhancement, denoising and the like, so as to obtain intermediate image data in a YUV format; and then demosaicing the intermediate image data through the DSP, interpolating RGB (red, green and blue) three-component colors on each pixel of the intermediate image data, then compressing and converting to obtain a target image, and storing (writing) camera information into shooting parameter information corresponding to the target image when compressing and converting to the target image. In the embodiment of the present invention, the target image may adopt a JPEG format, and the shooting parameter information may adopt an EXIF format.
And step 304, extracting camera information from shooting parameter information corresponding to the target image.
When a user selects a target image and needs to display the target image, the camera information can be directly extracted from the shooting parameter information corresponding to the target image, so that the camera information corresponding to the target image can be quickly acquired, and the subsequent steps can conveniently set the display color matrix of the display screen based on the camera information.
And 305, determining a display color matrix corresponding to the target image according to the preset corresponding relationship between the camera information and the display color matrix of the display screen.
In the embodiment of the invention, the corresponding relation between the camera information and the display color matrix of the display screen is preset, and the corresponding relation can be determined by a plurality of groups of experimental data, can also be set based on historical experience, and can also be set by a user based on personal preference; the corresponding relation is stored in the corresponding EEPROM of the mobile terminal in advance. The front camera and the rear camera correspond to different display color matrixes respectively. In this step, the display color matrix corresponding to the target image is determined based on the camera information corresponding to the target image obtained in step 304, so that the display color matrix of the display screen can be adapted to the camera information when the target image is shot, the display screen has good adaptability to the display of the target image, and the target image is ensured to have good display effect.
And step 306, displaying the target image on the display screen according to the display color matrix corresponding to the target image.
In this step, the display color matrix of the display screen is set based on the display color matrix corresponding to the target image determined in step 305, and the target image is displayed on the set display screen, so that the display screen can be optimized based on the camera information corresponding to the icon image, and is adapted to the scene and style of the target image, so that the target image has a better display effect.
In a preferred embodiment of the present invention, in step 306, the step of displaying the target image on the display screen according to the display color matrix corresponding to the target image may further include: acquiring the current environment brightness detected by a photoelectric sensor; and adjusting the display brightness of the display screen according to the current environment brightness.
In the embodiment of the invention, the photoelectric sensor can independently detect the current environment brightness, the current environment brightness detected by the photoelectric sensor is obtained while the target image is displayed on the display screen, and the display brightness of the display screen is adjusted based on the current environment brightness, so that the target image has a better display effect.
In a preferred embodiment of the present invention, in step 304, before the step of obtaining the camera information from the shooting parameter information corresponding to the target image, the method may further include: when the front camera shoots, acquiring environmental parameters detected by a photoelectric sensor; storing the environment parameters into shooting parameter information corresponding to the target image; step 306, displaying the target image on the display screen according to the display color matrix corresponding to the target image, which may further include: extracting environmental parameters in shooting parameter information corresponding to the target image; and adjusting the display parameters of the display screen according to the extracted environmental parameters.
In the embodiment of the invention, the photoelectric sensor can independently detect the environmental parameters such as brightness, color temperature and the like, when the front-facing camera shoots, the photoelectric sensor starts and detects the environmental parameters when the front-facing camera shoots, then the environmental parameters are obtained and stored in shooting parameter information corresponding to a target image, and when the display screen displays the target image, the display parameters of the display screen are adjusted according to the environmental parameters. Therefore, when the target image is displayed on the display screen, the display screen can be further optimized based on the environmental parameters during shooting, so that the target image has a better display effect.
In a preferred embodiment of the present invention, in step 306, the step of displaying the target image on the display screen according to the display color matrix corresponding to the target image may further include: acquiring current environmental parameters detected by a photoelectric sensor; determining a color matrix adjustment parameter corresponding to the current environment parameter according to a preset corresponding relationship between the environment parameter and the color matrix adjustment parameter; and adjusting the display color matrix corresponding to the target image according to the color matrix adjustment parameter corresponding to the current environment parameter.
In the embodiment of the invention, the corresponding relation between the environmental parameters and the color matrix adjustment parameters is preset, and the corresponding relation can be obtained by determining a plurality of groups of experimental data or set based on historical experience. When the target image is displayed on the display screen, the current environmental parameters such as brightness, color temperature and the like are detected through the photoelectric sensor, then the color matrix adjustment parameters corresponding to the current environmental parameters are determined and the display color matrix corresponding to the target image is adjusted through the corresponding relation between the environmental parameters and the color matrix adjustment parameters, so that the display color matrix of the display screen is adaptive to the target image and the current environment, and the target image can achieve a better display effect when being displayed on the display screen.
In the embodiment of the invention, image data shot by a camera and starting information of a photoelectric sensor are acquired; acquiring camera information when image data is shot according to the starting information; performing image signal processing on the image data to generate a target image; storing the camera information into shooting parameter information corresponding to the target image; extracting camera information from shooting parameter information corresponding to a target image; determining a display color matrix corresponding to the target image according to a preset corresponding relation between camera information and the display color matrix of the display screen; according to the display color matrix corresponding to the target image, the target image is displayed on the display screen, so that the camera information corresponding to the target image can be quickly and accurately acquired before the target image is displayed on the display screen, the display color matrix of the display screen is set based on the camera information, the display screen can be adjusted and optimized in a targeted mode, the display of the display screen is adaptive to the image shooting scene, the display of the image has good adaptability, and a better display effect is achieved.
Based on the method, the embodiment of the invention provides a mobile terminal for implementing the method.
Please refer to fig. 4, which is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention. An embodiment of the present invention provides a mobile terminal 400, where the mobile terminal 400 is provided with a display screen, and the mobile terminal 400 may include: a first acquisition module 410, a determination module 420, and a display module 430.
The first obtaining module 410 is configured to obtain camera information corresponding to a target image, where the camera information is used to represent that a camera for shooting the target image is a front-facing camera or a rear-facing camera;
the determining module 420 is configured to determine a display color matrix corresponding to the target image according to a preset correspondence between the camera information and the display color matrix of the display screen;
the display module 430 is configured to display the target image on the display screen according to the display color matrix corresponding to the target image;
the front camera and the rear camera correspond to different display color matrixes respectively.
In this embodiment of the present invention, the mobile terminal 400 may further include: the device comprises a second acquisition module, a generation module and a first storage module; wherein, the first obtaining module may include: and an extraction unit.
The second acquisition module is used for acquiring image data shot by the camera and camera information during shooting of the image data;
the generating module is used for carrying out image signal processing on the image data to generate a target image;
the first storage module is used for storing the camera information into shooting parameter information corresponding to a target image;
and the extraction unit is used for extracting the camera information from the shooting parameter information corresponding to the target image.
In the embodiment of the present invention, a photoelectric sensor is disposed on the mobile terminal 400, and when the front-facing camera is started, the photoelectric sensor is started along with the front-facing camera;
the second obtaining module may include: the device comprises a first acquisition unit and a first determination unit.
The first acquisition unit is used for acquiring starting information of the photoelectric sensor;
and the first determining unit is used for determining the camera information when the image data is shot according to the starting information.
In this embodiment of the present invention, the display module 430 may further be configured to:
acquiring the current environment brightness detected by a photoelectric sensor;
and adjusting the display brightness of the display screen according to the current environment brightness.
In this embodiment of the present invention, the mobile terminal 400 may further include: the device comprises a second acquisition module and a second storage module.
The third acquisition module is used for acquiring the environmental parameters detected by the photoelectric sensor when the front camera shoots;
the second storage module is used for storing the environment parameters into shooting parameter information corresponding to the target image;
in this embodiment, the display module 430 may further be configured to:
extracting environmental parameters in shooting parameter information corresponding to the target image;
and adjusting the display parameters of the display screen according to the extracted environmental parameters.
In this embodiment of the present invention, the display module 430 may further be configured to:
acquiring current environmental parameters detected by a photoelectric sensor;
determining a color matrix adjustment parameter corresponding to the current environment parameter according to a preset corresponding relationship between the environment parameter and the color matrix adjustment parameter;
and adjusting the display color matrix corresponding to the target image according to the color matrix adjustment parameter corresponding to the current environment parameter.
In this embodiment of the present invention, the first obtaining module 410 may include: the device comprises a second determining unit, a calculating unit, a third determining unit and a fourth determining unit.
The second determining unit is used for determining a target face in the target image;
the calculating unit is used for calculating the area ratio of the face image area of the target face in the target image;
the third determining unit is used for determining that the camera of the camera information representation shooting target image is a front-facing camera if the area ratio value is larger than or equal to the preset threshold value;
and the fourth determining unit is used for determining that the camera of the camera information representation shooting target image is a rear camera if the area ratio value is smaller than the preset threshold.
The mobile terminal provided in the embodiment of the present invention can implement each process implemented by the mobile terminal in the method embodiments of fig. 1 to fig. 3, and is not described herein again to avoid repetition.
According to the mobile terminal provided by the embodiment of the invention, the camera information corresponding to the target image is obtained; determining a display color matrix corresponding to the target image according to a preset corresponding relation between camera information and the display color matrix of the display screen; the target image is displayed on the display screen according to the display color matrix corresponding to the target image, so that the display color matrix of the display screen is set based on the camera information, the display screen can be adjusted and optimized in a targeted mode, the display screen can display images and correspond to the image shooting scene, the images can be displayed in a good adaptability, and a better display effect is achieved.
Fig. 5 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention.
The mobile terminal 500 includes, but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 5 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 510 is configured to obtain camera information corresponding to a target image, where the camera information is used to represent that a camera shooting the target image is a front-facing camera or a rear-facing camera; determining a display color matrix corresponding to the target image according to a preset corresponding relation between camera information and the display color matrix of the display screen; displaying the target image on a display screen according to the display color matrix corresponding to the target image; the front camera and the rear camera correspond to different display color matrixes respectively.
In the embodiment of the invention, the camera information corresponding to the target image is obtained; determining a display color matrix corresponding to the target image according to a preset corresponding relation between camera information and the display color matrix of the display screen; the target image is displayed on the display screen according to the display color matrix corresponding to the target image, so that the display color matrix of the display screen is set based on the camera information, the display screen can be adjusted and optimized in a targeted mode, the display screen can display images and correspond to the image shooting scene, the images can be displayed in a good adaptability, and a better display effect is achieved.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 501 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 510; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 501 can also communicate with a network and other devices through a wireless communication system.
The mobile terminal provides the user with wireless broadband internet access through the network module 502, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.
The audio output unit 503 may convert audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into an audio signal and output as sound. Also, the audio output unit 503 may also provide audio output related to a specific function performed by the mobile terminal 500 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.
The input unit 504 is used to receive an audio or video signal. The input Unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042, and the Graphics processor 5041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 506. The image frames processed by the graphic processor 5041 may be stored in the memory 509 (or other storage medium) or transmitted via the radio frequency unit 501 or the network module 502. The microphone 5042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 501 in case of the phone call mode.
The mobile terminal 500 also includes at least one sensor 505, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 5061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 5061 and/or a backlight when the mobile terminal 500 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 505 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The Display unit 506 may include a Display panel 5061, and the Display panel 5061 may be configured in the form of a liquid Crystal Display (L acquired Crystal Display, L CD), an Organic light Emitting Diode (O L ED), or the like.
The user input unit 507 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 507 includes a touch panel 5071 and other input devices 5072. Touch panel 5071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 5071 using a finger, stylus, or any suitable object or attachment). The touch panel 5071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 510, and receives and executes commands sent by the processor 510. In addition, the touch panel 5071 may be implemented in various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 5071, the user input unit 507 may include other input devices 5072. In particular, other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, the touch panel 5071 may be overlaid on the display panel 5061, and when the touch panel 5071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 510 to determine the type of the touch event, and then the processor 510 provides a corresponding visual output on the display panel 5061 according to the type of the touch event. Although in fig. 5, the touch panel 5071 and the display panel 5061 are two independent components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 5071 and the display panel 5061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.
The interface unit 508 is an interface through which an external device is connected to the mobile terminal 500. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 508 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 500 or may be used to transmit data between the mobile terminal 500 and external devices.
The memory 509 may be used to store software programs as well as various data. The memory 509 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 509 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 510 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 509 and calling data stored in the memory 509, thereby performing overall monitoring of the mobile terminal. Processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 510.
The mobile terminal 500 may further include a power supply 511 (e.g., a battery) for supplying power to various components, and preferably, the power supply 511 may be logically connected to the processor 510 via a power management system, so that functions of managing charging, discharging, and power consumption are performed via the power management system.
In addition, the mobile terminal 500 includes some functional modules that are not shown, and thus, are not described in detail herein.
Preferably, an embodiment of the present invention further provides a mobile terminal, which includes a processor 510, a memory 509, and a computer program stored in the memory 509 and capable of running on the processor 510, where the computer program, when executed by the processor 510, implements each process of the above-mentioned embodiment of the image display method, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned embodiment of the image display method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. An image display method is applied to a mobile terminal, and a display screen is arranged on the mobile terminal, and is characterized in that the method comprises the following steps:
acquiring camera information corresponding to a target image, wherein the camera information is used for representing that a camera for shooting the target image is a front camera or a rear camera;
determining a display color matrix corresponding to the target image according to a preset corresponding relation between camera information and a display color matrix of a display screen, so that the display color matrix of the display screen can be adapted to the camera information when the target image is shot;
displaying the target image on the display screen according to the display color matrix corresponding to the target image, wherein the display screen can be adjusted and optimized based on the camera information corresponding to the target image and is adaptive to the scene and style of the target image;
the front camera and the rear camera respectively correspond to different display color matrixes;
before the step of obtaining the camera information corresponding to the target image, the method further includes:
acquiring image data shot by a camera and the camera information when the image data is shot;
performing image signal processing on the image data to generate a target image;
storing the camera information into shooting parameter information corresponding to the target image;
the step of obtaining the camera information corresponding to the target image comprises the following steps:
extracting the camera information from shooting parameter information corresponding to the target image;
the mobile terminal is provided with a photoelectric sensor, and when the front camera is started, the photoelectric sensor is started along with the front camera;
the step of acquiring the camera information when the image data is shot comprises:
acquiring starting information of the photoelectric sensor;
determining camera information when the image data is shot according to the starting information;
the step of displaying the target image on the display screen according to the display color matrix corresponding to the target image further includes:
acquiring current environmental parameters detected by a photoelectric sensor;
determining a color matrix adjustment parameter corresponding to the current environment parameter according to a preset corresponding relationship between the environment parameter and the color matrix adjustment parameter;
and adjusting the display color matrix corresponding to the target image according to the color matrix adjustment parameter corresponding to the current environment parameter.
2. The method according to claim 1, wherein the step of displaying the target image on the display screen according to the display color matrix corresponding to the target image further comprises:
acquiring the current ambient brightness detected by the photoelectric sensor;
and adjusting the display brightness of the display screen according to the current environment brightness.
3. The method according to claim 1, wherein before the step of obtaining the camera information corresponding to the target image, the method further comprises:
when the front camera shoots, acquiring environmental parameters detected by a photoelectric sensor;
storing the environmental parameters into shooting parameter information corresponding to the target image;
the step of displaying the target image on the display screen according to the display color matrix corresponding to the target image further includes:
extracting environmental parameters in shooting parameter information corresponding to the target image;
and adjusting the display parameters of the display screen according to the extracted environmental parameters.
4. The utility model provides a mobile terminal, be provided with the display screen on the mobile terminal, its characterized in that, mobile terminal includes:
the device comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring camera information corresponding to a target image, and the camera information is used for representing that a camera for shooting the target image is a front camera or a rear camera;
the determining module is used for determining a display color matrix corresponding to the target image according to a preset corresponding relation between camera information and the display color matrix of the display screen, so that the display color matrix of the display screen can be adapted to the camera information when the target image is shot;
the display module is used for displaying the target image on the display screen according to the display color matrix corresponding to the target image, and the display screen can be adjusted and optimized based on the camera information corresponding to the target image and is adaptive to the scene and style of the target image;
the front camera and the rear camera respectively correspond to different display color matrixes;
the mobile terminal further includes:
the second acquisition module is used for acquiring image data shot by a camera and the camera information when the image data is shot;
the generating module is used for carrying out image signal processing on the image data to generate a target image;
the first storage module is used for storing the camera information into shooting parameter information corresponding to the target image;
the first obtaining module comprises:
the extraction unit is used for extracting the camera information from shooting parameter information corresponding to the target image;
the mobile terminal is provided with a photoelectric sensor, and when the front camera is started, the photoelectric sensor is started along with the front camera;
the second acquisition module includes:
the first acquisition unit is used for acquiring starting information of the photoelectric sensor;
the first determining unit is used for determining camera information during image data shooting according to the starting information;
the display module is further configured to:
acquiring current environmental parameters detected by a photoelectric sensor;
determining a color matrix adjustment parameter corresponding to the current environment parameter according to a preset corresponding relationship between the environment parameter and the color matrix adjustment parameter;
and adjusting the display color matrix corresponding to the target image according to the color matrix adjustment parameter corresponding to the current environment parameter.
5. The mobile terminal of claim 4, wherein the display module is further configured to:
acquiring the current ambient brightness detected by the photoelectric sensor;
and adjusting the display brightness of the display screen according to the current environment brightness.
6. The mobile terminal of claim 4, wherein the mobile terminal further comprises:
the second acquisition module is used for acquiring the environmental parameters detected by the photoelectric sensor when the front camera shoots;
the second storage module is used for storing the environment parameters into shooting parameter information corresponding to the target image;
the display module is further configured to:
extracting environmental parameters in shooting parameter information corresponding to the target image;
and adjusting the display parameters of the display screen according to the extracted environmental parameters.
7. A mobile terminal, characterized in that it comprises a processor, a memory and a computer program stored on said memory and executable on said processor, said computer program, when executed by said processor, implementing the steps of the image display method according to any one of claims 1 to 3.
8. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the image display method according to any one of claims 1 to 3.
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| CN111669505B (en) * | 2020-06-30 | 2022-09-20 | 维沃移动通信（杭州）有限公司 | Camera starting method and device |
| CN111951301A (en) * | 2020-07-16 | 2020-11-17 | 山东派蒙机电技术有限公司 | Method for reducing interference degree of vehicle vision system |
| CN112672145B (en) * | 2020-12-31 | 2023-02-17 | 广州绿怡信息科技有限公司 | Camera shooting function detection method and device |
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