CN111417007B - Image transmission method, device, terminal and storage medium - Google Patents
Image transmission method, device, terminal and storage medium Download PDFInfo
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- CN111417007B CN111417007B CN202010216490.4A CN202010216490A CN111417007B CN 111417007 B CN111417007 B CN 111417007B CN 202010216490 A CN202010216490 A CN 202010216490A CN 111417007 B CN111417007 B CN 111417007B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
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- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
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Abstract
The application belongs to the technical field of terminals, and particularly relates to an image transmission method, an image transmission device, a terminal and a storage medium. The image transmission method comprises the following steps: identifying coordinates of two diagonal vertices of an image display area in a display screen; determining a first display resolution based on the two diagonal vertex coordinates and a preset shape; and transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution, wherein the display screen is used for displaying the image data in the image display area based on the coordinates of the two diagonal vertices. The terminal does not need to transmit the black edge image data outside the image display area to the display screen, so that the transmitted image data can be reduced, the image transmission time is reduced, and the image transmission efficiency can be improved.
Description
Technical Field
The application belongs to the technical field of terminals, and particularly relates to an image transmission method, an image transmission device, a terminal and a storage medium.
Background
With the development of scientific technology, the terminal can support the user to watch images by using the terminal, so that the life of the user is enriched. Since the image is not manufactured in accordance with the size of the existing electronic device, the aspect ratio of the image is relatively fixed. However, due to the fact that the display screens are various in size, and in order to improve the hand feeling and comfortable use experience of users, the display screen of the terminal is mostly in a nonstandard aspect ratio, and the aspect ratio of the display screen of the terminal can be, for example, 19.5: 9 or 20: 9, etc.
At present, because the aspect ratio of an image is inconsistent with the aspect ratio of a terminal display screen, when an existing terminal transmits an image, a black-edge image is displayed on the display screen of the terminal, so that the transmission efficiency of the terminal is low.
Disclosure of Invention
The embodiment of the application provides an image transmission method, an image transmission device, a terminal and a storage medium, which can improve the image transmission efficiency.
In a first aspect, an embodiment of the present application provides an image transmission method, including:
identifying coordinates of two diagonal vertices of an image display area in a display screen;
determining a first display resolution based on the two diagonal vertex coordinates and a preset shape;
and transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution, wherein the display screen is used for displaying the image data in the image display area based on the coordinates of the two diagonal vertices.
In a second aspect, an embodiment of the present application provides an image transmission apparatus, including:
the coordinate identification unit is used for identifying coordinates of two diagonal vertexes of an image display area in the display screen;
a resolution determination unit for determining a first display resolution based on the two diagonal vertex coordinates and a preset shape;
and the image transmission unit is used for transmitting the image data carrying the two diagonal vertex coordinates to the display screen according to the first display resolution, and the display screen is used for displaying the image data in the image display area based on the two diagonal vertex coordinates.
In a third aspect, an embodiment of the present application provides a terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the method of any one of the first aspect.
In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, and the computer program is used for implementing any one of the methods described above when executed by a processor.
In a fifth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in the first aspect of embodiments of the present application. The computer program product may be a software installation package.
The embodiment of the application provides an image transmission method, which is characterized in that two diagonal vertex coordinates of an image display area in a display screen and a first display resolution of the image display area are identified, and image data carrying the two diagonal vertex coordinates are transmitted to the display screen according to the first display resolution, so that the display screen can display the image data in the image display area based on the two diagonal vertex coordinates. The terminal does not need to transmit the black edge image data outside the image display area to the display screen, so that the transmitted image data can be reduced, the image transmission time is reduced, and the image transmission efficiency can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view showing an application scenario of an image transmission method or an image transmission apparatus applied to an embodiment of the present application;
fig. 2 is a schematic flow chart illustrating an image transmission method according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating an example of a terminal interface according to an embodiment of the present application;
FIG. 4 is a schematic diagram illustrating an example of a terminal interface according to an embodiment of the present application;
FIG. 5 is a schematic diagram illustrating an example of a terminal interface according to an embodiment of the present application;
FIG. 6 is a flow chart of an image transmission method according to an embodiment of the present application;
FIG. 7 is a schematic diagram illustrating an example of a terminal interface according to an embodiment of the present application;
fig. 8 is a schematic view showing an application scenario of an image transmission method applied in the embodiment of the present application, which shows an example schematic view of a terminal interface in the embodiment of the present application;
fig. 9 is a flowchart illustrating an image transmission method according to an embodiment of the present application;
FIG. 10 is a flow chart illustrating an image transmission method according to an embodiment of the present application;
fig. 11 is a flowchart illustrating an image transmission method according to an embodiment of the present application;
FIG. 12 is a schematic diagram showing a structure of an image transmission apparatus according to an embodiment of the present application;
fig. 13 shows a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. 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 application.
With the development of scientific technology, the terminal can support the user to watch images by using the terminal, so that the life of the user is enriched. For example, when a user views an image using the terminal, the user may click on an icon corresponding to the image. When the terminal detects that the user clicks an icon of an image, the terminal may display the image. Including but not limited to pictures, images contained in video, etc.
Fig. 1 is a schematic view illustrating an application scenario of an image transmission method or an image transmission apparatus applied to an embodiment of the present application. As shown in fig. 1, when the terminal detects that the user clicks an icon of an image, the terminal may read the image from the server and transmit the read image to the display screen. The display screen may display an image based on the received image so that the user can view the image. However, the image acquired by the terminal is not manufactured according to the size of the display screen of the terminal, so the aspect ratio of the image is relatively fixed. However, in order to improve the hand feeling and comfortable use experience of the user, the display screen of the terminal is mostly in a nonstandard length-width ratio, and the aspect ratio of the display screen of the terminal may be, for example, 19.5: 9 or 20: 9, etc. Therefore, when the display screen of the terminal displays an image, a black image appears on the display screen of the terminal because the aspect ratio of the image is not consistent with the aspect ratio of the display screen of the terminal.
According to some embodiments, when the terminal transmits the acquired image to the display screen, the terminal transmits all data corresponding to the image line by line, where all the data includes image data displayed in the display area and black-edge image data. The black-edge image does not affect the image watched by the user, but the transmission of the black-edge image data increases the transmission time or the transmission rate of the image, and further reduces the transmission efficiency of the image.
The image transmission method provided by the embodiment of the present application will be described in detail below with reference to fig. 2 to 12. The execution bodies of the embodiments shown in fig. 2-12 may be terminals, for example.
Referring to fig. 2, a flowchart of an image transmission method is provided in an embodiment of the present application. As shown in fig. 2, the method of the embodiment of the present application may include the following steps S101 to S103.
S101, identifying coordinates of two diagonal vertexes of an image display area in a display screen.
According to some embodiments, the image display area refers to an area included in a display screen of the terminal in which an image can be displayed. Since the size of the image and the size of the display screen are not completely consistent, when the display screen displays the image, a black image may exist around the image displayed by the display screen, and the image display area of the display screen of the terminal may be as shown in fig. 3.
It is easily understood that the terminal may recognize the coordinates of the two diagonal vertices of the image display area in the display screen before receiving the image transmission instruction. The terminal may also identify the coordinates of the two diagonal vertices of the image display area in the display screen after receiving the image transmission instruction. The image transmission instruction includes, but is not limited to, a voice transmission instruction, a text transmission instruction, a click transmission instruction, and the like. The image transmission instruction input by the user may be, for example, a voice transmission instruction, which may be, for example, "play set 2 of a tv series".
Optionally, after the terminal receives the image transmission instruction, the terminal identifies coordinates of two diagonal vertices of an image display area in the display screen. For example, when the terminal receives the voice command, the terminal may identify an image in the display screen using an image recognition algorithm and determine diagonal vertex coordinates of a display area of the image. Including but not limited to neural network based image recognition algorithms, wavelet matrix based image recognition algorithms, and the like. As shown in fig. 4, the terminal may set, for example, the a vertex of the display screen as the origin of coordinates, and the coordinates of the a vertex diagonal to the display screen may be (1080, 2340), for example. When the terminal recognizes the display area of the image in the display screen by using the image recognition algorithm based on the neural network, the terminal can determine the coordinates of the two diagonal vertices of the image display area. The two diagonal vertex coordinates may be, for example, (0,80) and (1080, 2000).
S102, determining a first display resolution based on the two diagonal vertex coordinates and a preset shape.
According to some embodiments, a user may view an image using a terminal. When a user views an image by using the terminal, the user may click an icon corresponding to the image on a display screen of the terminal, and a display interface of the display screen of the terminal may be as shown in fig. 5. When the terminal detects that the user clicks the icon corresponding to the image, the terminal can acquire the image. Wherein the terminal may retrieve the image from the server, the terminal may retrieve the image from a memory of the terminal, and the terminal may retrieve the image from a removable device connected to the terminal. Wherein, the removable device includes but is not limited to a USB flash disk, a terminal, a smart watch, and the like.
It is easily understood that, when the terminal recognizes the coordinates of the two diagonal vertices of the image display area in the display screen using the image recognition algorithm, the terminal may determine the first display resolution based on the coordinates of the two diagonal vertices and the preset shape. The first display resolution refers to a resolution of an image of the image display area. The resolution is less than or equal to the resolution of the terminal display screen. The predetermined shape includes, but is not limited to, a rectangle, a square, a circle, a triangle, and the like.
Alternatively, the resolution of the display acquired by the terminal may be 2340 × 1080, for example. When the terminal determines the first display resolution, the terminal may set, for example, an a vertex of the display screen as the origin of coordinates, and coordinates of the display screen diagonal to the a vertex may be (1080, 2340), for example. When the terminal recognizes the display area of the image in the display screen by using the image recognition algorithm based on the neural network, the terminal can determine the coordinates of the two diagonal vertices of the image display area. The two diagonal vertex coordinates may be, for example, (0,80) and (1080, 2000). The preset shape set by the terminal may be, for example, a rectangle. The area covered by the rectangle may be, for example, an image display area. The first display resolution determined by the terminal may be, for example, 2000 × 1000 based on the preset shape and the two pairs of angular coordinates of the image display area.
S103, transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution, wherein the display screen is used for displaying the image data in the image display area based on the coordinates of the two diagonal vertices.
According to some embodiments, when the terminal acquires the first display resolution, the terminal may process the image data to obtain image data to be transmitted. Wherein the image data to be transmitted carries two diagonal vertex coordinates. When the terminal acquires the image data to be transmitted, the terminal can transmit the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution, namely, the terminal can transmit the image data to be transmitted to the display screen. When the display screen receives image data which is sent by the terminal and carries the coordinates of the two diagonal vertices, the display screen can supplement the black edge image data corresponding to the image data based on the coordinates of the two diagonal vertices. When the display screen completes the supplement of the black-edge image data, the display screen may display the received image data and the black-edge image data on the display screen, where the display screen may display the received image data in an image display area.
It is easy to understand that, when the terminal transmits the image data carrying the coordinates of the two diagonal vertices to the display screen, the terminal may transmit the image data carrying the coordinates of the two diagonal vertices to the display screen within a preset time, and the terminal may also transmit the image data carrying the coordinates of the two diagonal vertices to the display screen at a preset transmission speed.
Optionally, the first display resolution acquired by the terminal may be, for example, 2000 × 1000. When the terminal acquires the first display resolution, the terminal may acquire image data carrying two diagonal vertex coordinates (0,80) and (1080, 2000) based on the first display resolution. When the terminal acquires the image data, the terminal may transmit the image data carrying the two diagonal vertex coordinates (0,80) and (1080, 2000) to the display screen within a preset time, for example. When the display screen receives image data carrying two diagonal vertex coordinates (0,80) and (1080, 2000), the display screen may display the received image data in an image display area and black-edged image data in a non-image display area of the display screen.
The embodiment of the application provides an image transmission method, which is characterized in that two diagonal vertex coordinates of an image display area in a display screen and a first display resolution of the image display area are identified, and image data carrying the two diagonal vertex coordinates can be transmitted to the display screen according to the first display resolution, so that the display screen can display the image data in the image display area based on the two diagonal vertex coordinates, and a terminal can complete an image transmission process. In the image transmission process of the terminal, the terminal does not need to transmit the black-edge image data, so that the data transmitted by the terminal can be reduced, and the power consumption of the terminal for image transmission can be reduced.
Referring to fig. 6, a flowchart of an image transmission method is provided in an embodiment of the present application. As shown in fig. 6, the method of the embodiment of the present application may include the following steps S201 to S205.
S201, identifying coordinates of two diagonal vertexes of an image display area in a display screen.
According to some embodiments, when the terminal receives an image transmission instruction input by a user, the terminal may identify an area in a display screen of the terminal where an image is displayed using an image recognition algorithm and determine coordinates of two diagonal vertices of the image display area in the display screen based on a coordinate system set by the terminal. For example, the terminal may establish a coordinate system based on the size of the display screen of the terminal, and based on the identified image display area, the terminal may determine the coordinates of the vertices of the two diagonals of the image display area. The terminal determines two diagonal vertex coordinates of the image display area to be, for example, (0, 100) and (1080, 1600). The terminal may also determine vertex coordinates of four corners of the image display area based on the identified image display area.
S202, determining a first display resolution based on the two diagonal vertex coordinates and a preset shape.
According to some embodiments, when the terminal acquires the coordinates of the two diagonal vertices of the image display area, the terminal may acquire the preset shape. When the terminal acquires the preset shape, the terminal may determine the first display resolution based on the two diagonal vertex coordinates and the preset shape.
The specific process is as described above, and is not described herein again.
It is easily understood that when the terminal acquires the coordinates of the two diagonal vertices of the image display area, the terminal may acquire the determination of the first display resolution based on the shape of the image display area. For example, when the terminal acquires that the shape of the image display area is a square, the terminal may determine the first display resolution based on the two diagonal vertex coordinates and the square shape. The first display resolution determined by the terminal may be 1080 × 1500, for example.
S203, adjusting the image data to the size corresponding to the first display resolution.
According to some embodiments, when the terminal acquires the first display resolution, the terminal may adjust the image data to a size corresponding to the first display resolution. The first display resolution determined by the terminal may be 1080 × 1500, for example. For example, when the size of the image data acquired by the terminal is larger than the size corresponding to the first display resolution, the terminal may perform compression processing on the image data to adjust the image data to the size corresponding to the first display resolution. For example, when the size of the image data acquired by the terminal is smaller than the size corresponding to the first display resolution, the terminal may perform enlargement processing on the image data to adjust the image data to the size corresponding to the first display resolution.
And S204, dividing the adjusted image data into a plurality of lines of image data.
According to some embodiments, when the terminal adjusts the image data to a size corresponding to the first display resolution, the terminal may divide the adjusted image data into a plurality of lines of image data. For example, the terminal may divide the image data into a plurality of lines of image data according to a preset number of lines, and the plurality of lines of image data may be as shown in fig. 7. For example, the terminal may divide the image data into a plurality of lines of image data according to a preset per-line data size.
It is easily understood that the preset number of lines set by the terminal may be fifteen lines, for example. After the terminal adjusts the image data to the size corresponding to the first display resolution, the terminal may divide the adjusted image data into fifteen lines of image data according to preset fifteen lines. When the terminal divides the adjusted image data into a plurality of lines of image data, the terminal may label the plurality of lines of image data.
S205, transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen.
According to some embodiments, when the terminal splits the adjusted image data into a plurality of lines of image data, the terminal may transmit the two diagonal vertex coordinates and the plurality of lines of image data to the display screen. For example, the terminal may label the lines of image data before transmitting the two diagonal vertex coordinates and the lines of image data to the display screen, and the terminal may transmit the lines of image data to the display screen in descending order of label. When the display screen receives the two diagonal vertex coordinates and the plurality of lines of image data, the display screen may synthesize the plurality of lines of image data according to labels of the plurality of lines of image data, and the display screen may display the image data based on the two diagonal vertex coordinates.
It is easily understood that, when the terminal divides the adjusted image data into a plurality of lines of image data, the terminal may encapsulate the two diagonal vertex coordinates and the plurality of lines of image data into a data packet and transmit the data packet to the display screen. When the display screen receives the data packet, the display screen may parse the data packet to obtain a plurality of lines of image data and two diagonal vertex coordinates. Based on the acquired lines of image data and the two diagonal vertex coordinates, the display screen may combine the lines of image data into image data and display the image data.
Optionally, the terminal may divide the adjusted image data into fifteen lines of image data according to preset fifteen lines, and when the coordinates of the two diagonal vertices are (0, 100) and (1080, 1600), the terminal may encapsulate the fifteen lines of image data and the coordinates of the two diagonal vertices (0, 100) and (1080, 1600) into a data packet, and send the data packet to the display screen. When the display screen receives the data packet, the display screen may parse the data packet to obtain fifteen lines of image data and two diagonal vertex coordinates (0, 100) and (1080, 1600). The display screen may combine the fifteen lines of data into image data and display the image data based on the two diagonal vertex coordinates.
Fig. 8 is a schematic view of an application scenario of an image transmission method according to an embodiment of the present application, and as shown in fig. 8, when a sending terminal acquires image data carrying two diagonal coordinates, the sending terminal may send the image data carrying the two diagonal coordinates to a receiving terminal through a server, or the sending terminal may directly send the image data carrying the two diagonal coordinates to the receiving terminal. The image data carrying the two diagonal coordinates sent by the sending terminal does not contain the black-edge image data outside the image display area, so that the transmitted image data can be reduced, the transmission time can be reduced, and the transmission efficiency can be improved.
According to some embodiments, please refer to fig. 9, which provides a flowchart of an image transmission method according to an embodiment of the present application. As shown in fig. 9, the method of the embodiment of the present application may include the following steps S301 to S302. S301, acquiring time for transmitting the image data to the display screen according to the second display resolution of the display screen; s302, keeping the time unchanged, and sequentially transmitting the coordinates of the two diagonal vertexes and the plurality of lines of image data to the display screen.
It is easily understood that the second display resolution may refer to a resolution of the terminal display screen, i.e., a resolution corresponding to the image data of the image display area and the image data of the black border outside the image display area. When the terminal divides the adjusted image data into a plurality of lines of image data, the terminal may acquire a time for transmitting the image data to the display screen according to the second display resolution of the display screen. The time acquired by the terminal may be, for example, 0.05 second. When the terminal acquires the time, the terminal can keep the time unchanged, and sequentially transmit the two diagonal vertex coordinates and the multiple lines of image data to the display screen, namely, the terminal can sequentially transmit the two diagonal vertex coordinates and the multiple lines of image data to the display screen within 0.05 second. Since the terminal keeps the transmission time unchanged, but since the terminal does not need to transmit the black-edge image data outside the image display area to the display screen, the terminal can reduce the transmitted data, can reduce the transmission bandwidth, and can therefore reduce the transmission power consumption of the terminal.
According to some embodiments, please refer to fig. 10, which provides a flowchart of an image transmission method according to an embodiment of the present application. As shown in fig. 10, the method of the embodiment of the present application may include the following steps S401 to S402. S401, acquiring the speed of transmitting the image data to the display screen according to the second display resolution of the display screen; s402, keeping the speed unchanged, and sequentially transmitting the coordinates of the two diagonal vertexes and the plurality of lines of image data to the display screen.
It is easily understood that the second display resolution may refer to a resolution of the terminal display screen, i.e., a resolution corresponding to the image data of the image display area and the image data of the black border outside the image display area. When the terminal divides the adjusted image data into a plurality of lines of image data, the terminal can acquire the speed at which the image data is transmitted to the display screen according to the second display resolution of the display screen. The time acquired by the terminal may be 2000Mbps per second, for example. When the terminal acquires the speed, the terminal can keep the speed unchanged, and sequentially transmits the two diagonal vertex coordinates and the multiple lines of image data to the display screen, namely, the terminal can sequentially transmit the two diagonal vertex coordinates and the multiple lines of image data to the display screen at the speed of 2000 Mbps. Since the terminal keeps the transmission speed unchanged, but the terminal does not need to transmit the black-edge image data outside the image display area to the display screen, the terminal can reduce the transmission time, and further can improve the transmission efficiency of the terminal.
According to some embodiments, the terminal may transmit image data carrying the two diagonal vertex coordinates to the display screen at a first display resolution. When the display screen receives the image data of the two diagonal vertex coordinates, the display screen may display the image data in the display area and display the black-edged image data outside the image display area according to the second display resolution of the display screen. Wherein the second display resolution is the resolution of the display screen. When the display screen receives the image data sent by the terminal, the display screen can obtain a second display resolution of the display screen, and based on the second display resolution and the two diagonal vertex coordinates, the terminal can determine the black edge image data outside the display area.
It is readily understood that the second display resolution of the display screen may be 1080 x 1680, for example. The display screen captured image data may be, for example, fifteen lines of image data and two diagonal vertex coordinates (0,80) and (1080, 1680). When the display screen acquires the coordinates of the two diagonal vertices, the display screen establishes a coordinate system based on the acquired second display resolution, and determines the area of the black-edge image based on the coordinates of the two diagonal vertices, and the display screen can not supplement the data of the black-edge image in the area of the black-edge image. When the display screen completes the black-edge image data, the display screen may display the image data and the black-edge image data.
According to some embodiments, please refer to fig. 11, which provides a flowchart of an image transmission method according to an embodiment of the present application. As shown in fig. 11, the method of the embodiment of the present application may include the following steps S501 to S502. S501, when the image data is key frame image data in video data, transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution; s502, when the image data is non-key frame image data in the video data, transmitting the image data to the display screen according to the first display resolution.
It is easy to understand that the key frame image data refers to the frame of image data where the key action in the movement or change of the character or object in the video data is located, and the key frame image data in the embodiment of the present application refers to the image data in which the coordinates of two diagonal vertices corresponding to the display area of the key frame image data are changed by using the previous frame of image data of the key frame image data as a reference object. Since the coordinates of the two diagonal vertices of the image display area of the key frame are changed relative to the coordinates of the two diagonal vertices of the image display area of the previous frame, the terminal can transmit image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution.
Optionally, for example, when the two diagonal vertex coordinates corresponding to the previous frame of image data of the key frame image data obtained by the terminal are (0,80) and (980, 1680), and the two diagonal vertex coordinates corresponding to the key frame image data are (0,80) and (1080,1680), the terminal may transmit the image data carrying the two diagonal vertex coordinates (0,80) and (1080,1680) to the display screen according to the first display resolution.
It is easy to understand that the non-key frame image data in the embodiments of the present application refers to image data in which coordinates of two diagonal vertices corresponding to a display area of the non-key frame image data are unchanged by using image data of a previous frame of the key frame image data as a reference object. Since the coordinates of the two diagonal vertices of the image display area of the non-key frame are unchanged with respect to the coordinates of the two diagonal vertices of the image display area of the previous frame, the terminal may not transmit the coordinates of the two diagonal vertices to the display screen, and the terminal may transmit the image data of the non-key frame to the display screen according to the first display resolution.
Optionally, for example, when the coordinates of two diagonal vertices corresponding to the previous frame of image data of the key frame image data obtained by the terminal are (0,80) and (980, 1680), and the coordinates of two diagonal vertices corresponding to the non-key frame image data are (0,80) and (980, 1680), the terminal may transmit the non-key frame image data to the display screen according to the first display resolution.
The embodiment of the application provides an image transmission method, which can divide image data after adjustment into a plurality of lines of image data through adjustment of the image data, transmit two diagonal vertex coordinates corresponding to an image display area and the plurality of lines of image data to a display screen, and display the display screen based on the plurality of lines of image data. Because the image data with black edges is not included in the image data with a plurality of lines, the terminal can reduce the transmitted data, and further can reduce the power consumption of image transmission.
The image transmission device provided in the embodiment of the present application will be described in detail below with reference to fig. 12. It should be noted that the image transmission apparatus shown in fig. 12 is used for executing the method of the embodiment shown in fig. 2 to 12 of the present application, and for convenience of description, only the portion related to the embodiment of the present application is shown, and details of the specific technology are not disclosed, please refer to the embodiment shown in fig. 2 to 12 of the present application.
Please refer to fig. 12, which shows a schematic structural diagram of an image transmission apparatus according to an embodiment of the present application. The image transmission apparatus 1200 may be implemented by software, hardware, or a combination of both as all or a part of a user terminal. According to some embodiments, the image transmission apparatus 1200 comprises a coordinate recognition unit 1201, a resolution determination unit 1202, and an image transmission unit 1203, specifically configured to:
a coordinate recognition unit 1201 for recognizing coordinates of two diagonal vertices of an image display area in a display screen;
a resolution determination unit 1202 configured to determine a first display resolution based on the two diagonal vertex coordinates and a preset shape;
an image transmission unit 1203, configured to transmit the image data carrying the two diagonal vertex coordinates to the display screen according to the first display resolution, where the display screen is configured to display the image data in the image display area based on the two diagonal vertex coordinates.
According to some embodiments, the image transmission unit 1203 is configured to, when transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution, specifically:
adjusting the image data to a size corresponding to the first display resolution;
dividing the adjusted image data into a plurality of lines of image data;
transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen.
According to some embodiments, the image transmission unit 1203 is configured to, when transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen, specifically:
and packaging the two diagonal vertex coordinates and the plurality of lines of image data into a data packet, and transmitting the data packet to the display screen.
According to some embodiments, the image transmission unit 1203 is configured to, when transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen, specifically:
acquiring the time for transmitting the image data to the display screen according to the second display resolution of the display screen;
and keeping the time unchanged, and sequentially transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen.
According to some embodiments, the image transmission unit 1203 is configured to, when transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen, specifically:
acquiring the speed of transmitting the image data to the display screen according to the second display resolution of the display screen;
and keeping the speed unchanged, and sequentially transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen.
According to some embodiments, the image transmission unit 1203 is configured to, when transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution, specifically:
when the image data is key frame image data in video data, transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution;
and when the image data is non-key frame image data in the video data, transmitting the image data to the display screen according to the first display resolution.
According to some embodiments, the image transmission unit 1203 is configured to transmit the image data carrying the two diagonal vertex coordinates to the display screen according to the first display resolution, where the display screen is configured to, when displaying the image data in the image display area based on the two diagonal vertex coordinates, specifically:
and transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the display resolution, wherein the display screen is used for displaying the image data in the image display area based on the coordinates of the two diagonal vertices and displaying the black edge image data outside the image display area according to the second display resolution of the display screen.
The embodiment of the application provides an image transmission device, and according to a first display resolution, the image transmission device can transmit image data carrying two diagonal vertex coordinates corresponding to an image display area to a display screen, so that the display screen can display the image data in the image display area based on the two diagonal vertex coordinates. Because the image data transmitted by the image transmission device does not include the black-edge image data, the time for transmitting the image data by the image transmission device can be reduced, and the image transmission efficiency can be improved.
Please refer to fig. 13, which is a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in fig. 13, the terminal 1300 may include: at least one processor 1301, at least one network interface 1304, a user interface 1303, memory 1305, at least one communication bus 1302.
Wherein a communication bus 1302 is used to enable connective communication between these components.
The user interface 1303 may include a Display screen (Display) and a GPS, and the optional user interface 121103 may include a standard wired interface or a wireless interface.
The network interface 1304 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface).
The Memory 1305 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 1305 includes a non-transitory computer-readable medium. The memory 1305 may be used to store an instruction, a program, code, a set of codes, or a set of instructions. The memory 1305 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 1305 may alternatively be at least one storage device located remotely from the processor 1301. As shown in fig. 13, the memory 1305, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and an application program for image transmission.
In the terminal 1300 shown in fig. 13, the user interface 1303 is mainly used for providing an input interface for a user to obtain data input by the user; the processor 1301 may be configured to invoke an application program of the image transmission method stored in the memory 1305, and specifically perform the following operations:
identifying coordinates of two diagonal vertices of an image display area in a display screen;
determining a first display resolution based on the two diagonal vertex coordinates and a preset shape;
and transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution, wherein the display screen is used for displaying the image data in the image display area based on the coordinates of the two diagonal vertices.
According to some embodiments, the processor 1301 is configured to, when transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution, specifically, perform the following steps:
adjusting the image data to a size corresponding to the first display resolution;
dividing the adjusted image data into a plurality of lines of image data;
transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen.
According to some embodiments, the processor 1301 is configured to, when performing the transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen, specifically, perform the following steps:
and packaging the two diagonal vertex coordinates and the plurality of lines of image data into a data packet, and transmitting the data packet to the display screen.
According to some embodiments, the processor 1301 is configured to, when performing the transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen, specifically, perform the following steps:
acquiring the time for transmitting the image data to the display screen according to the second display resolution of the display screen;
and keeping the time unchanged, and sequentially transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen.
According to some embodiments, the processor 1301 is configured to, when performing the transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen, specifically, perform the following steps:
acquiring the speed of transmitting the image data to the display screen according to the second display resolution of the display screen;
and keeping the speed unchanged, and sequentially transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen.
According to some embodiments, the processor 1301 is configured to, when transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution, specifically, perform the following steps:
when the image data is key frame image data in video data, transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution;
and when the image data is non-key frame image data in the video data, transmitting the image data to the display screen according to the first display resolution.
According to some embodiments, the processor 1301 is configured to transmit the image data carrying the two diagonal vertex coordinates to the display screen according to the first display resolution, and the display screen is configured to, when displaying the image data in the image display area based on the two diagonal vertex coordinates, specifically perform the following steps:
and transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the display resolution, wherein the display screen is used for displaying the image data in the image display area based on the coordinates of the two diagonal vertices and displaying the black edge image data outside the image display area according to the second display resolution of the display screen.
The embodiment of the application provides a terminal, and according to a first display resolution, the terminal can transmit image data carrying two diagonal vertex coordinates corresponding to an image display area to a display screen, so that the display screen can display the image data in the image display area based on the two diagonal vertex coordinates. Because the image data transmitted by the terminal does not include the black-edge image data, when the terminal transmits the image data according to the transmission speed of the black-edge image data, the bandwidth required by the terminal for transmitting the image data can be reduced, and the power consumption of the terminal for transmitting the image data can be further reduced.
The present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above-described method. The computer-readable storage medium may include, but is not limited to, any type of disk including floppy disks, optical disks, DVD, CD-ROMs, microdrive, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.
Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any one of the image transmission methods as set forth in the above method embodiments.
It is clear to a person skilled in the art that the solution of the present application can be implemented by means of software and/or hardware. The "unit" and "module" in this specification refer to software and/or hardware that can perform a specific function independently or in cooperation with other components, where the hardware may be, for example, a Field-ProgrammaBLE gate array (FPGA), an Integrated Circuit (IC), or the like.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some service interfaces, devices or units, and may be an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory comprises: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by a program, which is stored in a computer-readable memory, and the memory may include: flash disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The above description is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure should not be limited thereby. That is, all equivalent changes and modifications made in accordance with the teachings of the present disclosure are intended to be included within the scope of the present disclosure. Embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (9)
1. An image transmission method, comprising:
identifying coordinates of two diagonal vertices of an image display area in a display screen;
determining a first display resolution based on the two diagonal vertex coordinates and a preset shape; the preset shape is the shape of the image display area, and the first display resolution is the resolution of the image display area;
adjusting the image data to a size corresponding to the first display resolution;
dividing the adjusted image data into a plurality of lines of image data;
transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen, the display screen to display the image data in the image display area based on the two diagonal vertex coordinates.
2. The method of claim 1, wherein said transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen comprises:
and packaging the two diagonal vertex coordinates and the plurality of lines of image data into a data packet, and transmitting the data packet to the display screen.
3. The method of claim 1, wherein said transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen comprises:
acquiring the time for transmitting the image data to the display screen according to the second display resolution of the display screen; the second display resolution is the resolution corresponding to the image in the image display area and the black edge image except the image display area in the display screen;
and keeping the time unchanged, and sequentially transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen.
4. The method of claim 1, wherein transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen comprises:
acquiring the speed of transmitting the image data to the display screen according to the second display resolution of the display screen; the second display resolution is the resolution corresponding to the image in the image display area and the black edge image except the image display area in the display screen;
and keeping the speed unchanged, and sequentially transmitting the two diagonal vertex coordinates and the plurality of lines of image data to the display screen.
5. The method of claim 1, wherein said transmitting image data carrying said two diagonal vertex coordinates to said display screen at said first display resolution comprises:
when the image data is key frame image data in video data, transmitting the image data carrying the coordinates of the two diagonal vertices to the display screen according to the first display resolution;
and when the image data is non-key frame image data in the video data, transmitting the image data to the display screen according to the first display resolution.
6. The method of claim 1, wherein said transmitting image data carrying said two diagonal vertex coordinates to said display screen at said first display resolution, said display screen for displaying said image data in said image display area based on said two diagonal vertex coordinates, comprises:
transmitting the image data carrying the two diagonal vertex coordinates to the display screen according to the first display resolution, wherein the display screen is used for displaying the image data in the image display area based on the two diagonal vertex coordinates and displaying the black edge image data outside the image display area according to the second display resolution of the display screen; the second display resolution is the resolution corresponding to the image in the image display area and the black edge image except the image display area in the display screen.
7. An image transmission apparatus, comprising:
the coordinate identification unit is used for identifying coordinates of two diagonal vertexes of an image display area in the display screen;
a resolution determination unit for determining a first display resolution based on the two diagonal vertex coordinates and a preset shape; the preset shape is the shape of the image display area, and the first display resolution is the resolution of the image display area;
an image transmission unit, configured to adjust image data to a size corresponding to the first display resolution, divide the adjusted image data into a plurality of lines of image data, and transmit the two diagonal vertex coordinates and the plurality of lines of image data to the display screen, where the display screen is configured to display the image data in the image display area based on the two diagonal vertex coordinates.
8. A terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the method of any of the preceding claims 1-6 when executing the computer program.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of any one of the preceding claims 1 to 6.
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