CN111292677B - Image display processing method and device, computer equipment and storage medium - Google Patents
Image display processing method and device, computer equipment and storage medium Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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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
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
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Abstract
The invention discloses an image display processing method and device, computer equipment and a storage medium suitable for an LED display screen, wherein the method comprises the following steps: receiving network packet data transmitted by a sending card, wherein the network packet data comprises: … … nth frame video frames of the first frame video frame and the second frame video frame, wherein N is a natural number greater than 1; unpacking the network packet data to acquire digital pixel data of each video frame in the network packet data, and performing image processing on each video frame; sequentially and discontinuously outputting a first video frame subjected to image processing and an Nth video frame … …; and outputting the output image driving signal of the video frame to the LED display screen to display an image. The invention effectively solves the problem of fuzzy characters in the video playing process of the LED display screen by discontinuously outputting the video frames.
Description
Technical Field
The invention relates to the technical field of display control, in particular to an image display processing method and device suitable for an LED display screen, computer equipment and a storage medium.
Background
With the development of the LED display technology, the LED display technology is applied more and more widely in various fields, such as community media, hotel rental screens, video conference systems, workshops of smart factories, and informatization visual systems in the military field.
The frame is the smallest single image frame in the image animation, which is equivalent to each frame of lens on the motion picture film, one frame is a static frame, and the continuous frames form the animation. The number of frames, in short, the number of pictures transmitted per second, can also be understood as the number of refreshes per second of the video processor, usually expressed in fps. The video played by the LED display screen is actually a picture which continuously plays one frame by one frame, and the picture is smoother as the frame number is higher. Typically the number of frames of an LED display screen is 60fps or 120fps, and a high frame rate can make the animation smoother and more realistic, but the more blurred the text below the animation. This is mainly because when the object moves rapidly, the human eye can keep its image for about 0.1-0.4 seconds after the object seen by the human eye disappears, which is called "persistence of vision". When the LED is used for displaying characters, due to the phenomenon of persistence of vision, the situation that the characters are fuzzy when people watch the characters can be caused, particularly, the characters move rapidly on an electronic indicator board on a highway and an advertising board in a bus, and the content of the characters played under the situation is more fuzzy.
Disclosure of Invention
The invention aims to provide an image display processing method and device suitable for an LED display screen, computer equipment and a storage medium. The method aims to solve the problem of fuzzy characters in the video playing process of the LED display screen.
The embodiment of the invention provides an image display processing method suitable for an LED display screen, which comprises the following steps:
receiving network packet data transmitted by a sending card, wherein the network packet data comprises: … … nth frame video frames of the first frame video frame and the second frame video frame, wherein N is a natural number greater than 1;
unpacking the network packet data to acquire digital pixel data of each video frame in the network packet data, and performing image processing on each video frame;
sequentially and discontinuously outputting a first video frame subjected to image processing and an Nth video frame … …;
and outputting the output image driving signal of the video frame to the LED display screen to display an image.
Preferably, the sequentially and intermittently outputting the first video frame and the second video frame … …, the nth video frame includes:
acquiring preset interval time t;
controlling the current continuous display time of the previous video frame to reduce the interval time t relative to the original continuous display time, and after waiting for the interval time t, starting to output the current video frame and controlling the current continuous display time of the current video frame to reduce the interval time t relative to the original continuous display time;
and so on until all video frames are output.
Preferably, the controlling the current continuous display time of the previous video frame to be reduced by an interval time t relative to the original continuous display time, and after waiting for the interval time t, starting to output the current video frame and controlling the current continuous display time of the current video frame to be reduced by the interval time t relative to the original continuous display time includes:
controlling the current continuous display time of the nth frame of video frame to be
Controlling the current continuous display time of the n +1 th frame of the video frame to be
Preferably, the method further comprises the following steps:
when N is 60, the interval time t is set to be 0.4-2ms in advance;
when N is 120, the interval time t is set to 0.4-1.5ms in advance.
Preferably, the method further comprises the following steps:
when N is 60, the interval time t is set to be 0.5-1ms in advance;
when N is 120, the interval time t is set to 0.4-0.8ms in advance.
Preferably, the image processing on each video frame includes:
and performing gamma transformation, correction and gray extraction on each video frame to perform compensation calculation on the brightness, the chroma and the gray of each video frame.
Preferably, the unpacking the network packet data to obtain each video frame therein and performing image processing on each video frame includes:
and carrying out format conversion processing on each video frame.
The embodiment of the invention provides an image display processing device suitable for an LED display screen, which comprises:
the image data receiving unit is used for receiving network packet data transmitted by a sending card, and the network packet data comprises: … … nth frame video frames of the first frame video frame and the second frame video frame, wherein N is a natural number greater than 1;
the image data unpacking unit is used for unpacking the network packet data, acquiring the digital pixel data of each video frame in the network packet data and carrying out image processing on each video frame;
the intermittent output unit is used for sequentially and intermittently outputting the first video frame and the Nth video frame of the second video frame … … after the image processing;
and the image display unit is used for outputting the output image driving signal of the video frame to the LED display screen so as to display an image.
The embodiment of the invention provides computer equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the computer program, the image display processing method suitable for the LED display screen is realized.
An embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the image display processing method suitable for the LED display screen.
The embodiment of the invention provides an image display processing method and device, computer equipment and a storage medium suitable for an LED display screen, wherein the method comprises the following steps: receiving network packet data transmitted by a sending card, wherein the network packet data comprises: … … nth frame video frames of the first frame video frame and the second frame video frame, wherein N is a natural number greater than 1; unpacking the network packet data to acquire digital pixel data of each video frame in the network packet data, and performing image processing on each video frame; sequentially and discontinuously outputting a first video frame subjected to image processing and an Nth video frame … …; and outputting the output image driving signal of the video frame to the LED display screen to display an image. The embodiment of the invention effectively solves the problem of fuzzy characters in the video playing process of the LED display screen by discontinuously outputting the video frames.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of an image display processing method suitable for an LED display screen according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of an image display processing apparatus suitable for an LED display screen according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, but 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.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 1 is a schematic flow chart of an image display processing method suitable for an LED display screen according to an embodiment of the present invention, where the method includes:
s101, receiving network packet data transmitted by a sending card, wherein the network packet data comprises: … … nth frame video frames of the first frame video frame and the second frame video frame, wherein N is a natural number greater than 1;
when the LED display control system receives an image display request, the LED display control system responds to the request and receives network packet data transmitted by a sending card through a network port, wherein the network packet data comprises: first frame video frame, second frame video frame … … nth frame video frame. And N is a natural number greater than 1, otherwise, the video frame does not change and is displayed as a still picture.
It should be noted that, in the embodiment of the present invention, N in the nth frame video frames may refer to a frame rate, that is, the nth frame video frames of the first frame video frame and the second frame video frame … … refer to all video frames within 1 s. The processing for the video frames in other units of time (1s) is also performed in subsequent steps.
The number of frames is an abbreviation for the number of generated frames. The first frame video frame, the second frame video frame … …, the nth frame video frame in this step are the frame numbers of the network packet data, and when these video frames are connected in series and displayed in rapid succession, the motion artifact is formed. The frame rate is the frequency at which bitmap images in units of frames appear on the display continuously per unit time. The more the number of frames displayed in unit time is, the higher the frame rate is, and the smoother and more vivid animation is displayed.
S102, unpacking the network packet data to obtain digital pixel data of each video frame, and performing image processing on each video frame;
after the network packet data transmitted from the sending card is acquired, the network packet data is unpacked by calling an unpacking program stored in an FPGA chip, and the digital pixel data of each video frame is acquired. After the digital pixel data is acquired, image processing is carried out on the digital pixel data by calling an image processing program stored in an FPGA chip so as to enable a displayed image to meet the display requirement.
S103, sequentially and discontinuously outputting the first video frame subjected to image processing and the Nth video frame … … of the second video frame;
in the prior art, each frame of video is played continuously, and when the frame rate is N, the dwell time of each frame of video is the same. The fast and continuous playing mode can make the video more continuous and smoother, but when the object moves rapidly, after seeing that the object disappears, human eyes can still keep the image for about 0.1-0.4 second, which can cause the phenomenon of vision persistence that the characters are blurred when watching the video, and is not beneficial to playing some videos needing to play the characters, such as early warning LED lamp boards on expressways. The embodiment of the invention intermittently outputs the video frames by calling the video output program stored in the FPGA chip, so that the playing time of each frame of video frame relative to the original video frame is reduced, the interval time is generated between the continuously played video frames, and the adverse effect caused by the persistence of vision can be avoided.
In one embodiment, the step S103 includes:
acquiring preset interval time t;
controlling the current continuous display time of the previous video frame to reduce the interval time t relative to the original continuous display time, and after waiting for the interval time t, starting to output the current video frame and controlling the current continuous display time of the current video frame to reduce the interval time t relative to the original continuous display time;
and so on until all video frames are output.
In this embodiment, since the human eye has a persistence of vision when watching a fast moving object, in order to make the text playing more clear, it is necessary to perform intermittent output on each video frame, and preset an interval time t, so as to control the current continuous display time of the previous video frame to decrease the interval time t relative to the original continuous display time. I.e. the playing time of the current video frame is reduced by t relative to the playing time of the original video frame. Therefore, after the current video frame is played and the waiting time t is up, the next video frame is continuously played until all the video frames are played. Therefore, the interval time t is reserved between every two video frames, the buffering time is reserved for the persistence of vision of human eyes, and each video frame can be seen by the human eyes more clearly and accurately.
Specifically, the controlling the current continuous display time of the previous video frame to be reduced by the interval time t relative to the original continuous display time, and after waiting for the interval time t, starting to output the current video frame and controlling the current continuous display time of the current video frame to be reduced by the interval time t relative to the original continuous display time includes:
controlling the current continuous display time of the nth frame of video frame to be
Controlling the current continuous display time of the n +1 th frame of the video frame to be
In this embodiment, when the frame rate is N, N frames of video are output within 1 s. In the prior art, the duration display time (i.e. the original duration display time) of the first frame of video frame is
The continuous display time (i.e. the original continuous display time) of the second frame of the video frame is
The continuous display time (i.e. the original continuous display time) of the nth frame of video frame is
The continuous display time (i.e. the original continuous display time) of the (n + 1) th frame of the video frame is
The continuous display time (i.e. the original continuous display time) of the Nth frame of the video frame is
In the embodiment of the present invention, since the time t is spaced between each frame of video frames, the current continuous display time of the first frame of video frames in the present invention is
The current continuous display time of the second frame video frame is
The current continuous display time of the nth frame of video frame is
The current continuous display time of the n +1 th frame of the video frame is
The current continuous display time of the Nth frame of the video frame is
Therefore, the current continuous display time of each frame of video frame is determined by its frame rate and interval time t.
And S104, outputting the output image driving signal of the video frame to an LED display screen to display an image.
The receiving card outputs an image driving signal to the LED display screen through the flat cable, so that the LED display screen is driven to display an image. The output image driving signal is processed, and each frame of video displayed on the LED display screen is separated by the time t, so that the influence of the persistence of vision on the character watching is reduced. During this time interval t of each adjacent frame, there is no video display, i.e. a black screen is displayed on the LEDs. Therefore, if the video is played, the screen flashing phenomenon exists, but the LED display screen suitable for only playing the characters does not have the screen flashing phenomenon.
In an embodiment, the image display processing method for the LED display screen further includes:
when N is 60, the interval time t is set to be 0.4-2ms in advance;
when N is 120, the interval time t is set to 0.4-1.5ms in advance.
In the embodiment of the present invention, when the frame rate is higher, it indicates that the number of video frames output in a unit time is more, in other words, the continuous display time of each frame of video frame is shorter; when the frame rate is lower, it is indicated that the video frames output per unit time are fewer, in other words, the continuous display time of each frame of video frame is longer. Therefore, in the embodiment of the present invention, when the frame rate is higher, the duration of the persistence of vision is shorter because the duration of each frame of video frame is shorter, so the corresponding interval time t can be set to be shorter, and when the frame rate is lower, the duration of the persistence of vision is longer because the duration of each frame of video frame is longer, so the corresponding interval time t can be set to be longer.
Generally, the frame rate is 60 or 120fps, and for the two cases, the corresponding interval time t can be set respectively, that is, when N is 60, the interval time t is set to be 0.4-2ms, and when N is 120, the interval time t is set to be 0.4-1.5ms in advance.
More specifically, when N is 60, the interval time t is set to 0.5-1 ms; when N is 120, the interval time t is set to 0.4-0.8ms in advance.
In this embodiment, assuming that the frame rate is 60fps (i.e. N is 60) and t is 1ms, the original continuous display time of each frame of video frame is
After the interval time t is set, the current continuous display time is adjusted to
And display of the next frame of video frame is started after the interval time of 1 ms. Assuming that the frame rate is 120fps (i.e. N is 120) and t is 0.5ms, the original continuous display time of each frame of video frame is
After the interval time t is set, the current continuous display time is adjusted to
And display of the next frame of video begins after 0.5ms of the interval time.
In the embodiment of the present invention, t may also be set to
Thus, when the frame rate is 60fps, t is 1ms, when the frame rate is 120fps, t is 0.5ms, and when N is other frame rates, the corresponding interval time t is calculated.
In an embodiment, the image processing on the video frames includes:
and performing gamma transformation, correction and gray extraction on each video frame to perform compensation calculation on the brightness, the chroma and the gray of each video frame.
In this embodiment, the gamma transformation is to perform gamma transformation enhancement on three channels of RGB of each video frame image, so as to increase the brightness of darker pixels in the image; the correction means that the color of each video frame image is controlled to exceed the standard by a Sobel cloud non-color-coding correction method, and the brightness and the chroma of the video frame are adjusted by a YUV curve corresponding to an RGB channel of each video frame image so as to achieve the effect of increasing the contrast and the brightness of the image; the gray extraction is to adjust the gray of each frame of video image. Through gamma conversion, correction and gray extraction, the compensation calculation can be carried out on the brightness, the chromaticity and the gray of each video frame, so that the LED display screen has better color expressive force.
The image processing further comprises: image segmentation, image description and image classification. The image segmentation is one of key technologies in digital image processing, and is used for extracting meaningful characteristic parts in an image, wherein the meaningful characteristics comprise edges, areas and the like in the image, which are the basis for further image recognition, analysis and understanding; the image description is a necessary premise for image recognition and understanding, the simplest binary image can describe the characteristics of an object by using the geometric characteristics of the image, and a general image description method adopts two-dimensional shape description and has two methods of boundary description and area description; the image classification belongs to the category of pattern recognition, and the main content of the image classification is that after certain preprocessing (enhancement, restoration and compression), the image is subjected to image segmentation and feature extraction, so that judgment and classification are performed.
In an embodiment, unpacking the network packet data to obtain each video frame therein, and after performing image processing on each video frame, the method includes:
and carrying out format conversion processing on each video frame.
In this embodiment, format conversion is performed on each video frame, and data after image processing is converted into a format adapted to the current LED display screen system, so that an image is output to the LED display screen for display.
Referring to fig. 2, fig. 2 is a schematic block diagram of an image display processing apparatus suitable for an LED display screen according to an embodiment of the present invention, where the image display processing apparatus 200 suitable for an LED display screen may include:
an image data receiving unit 201, configured to receive network packet data transmitted by a sending card, where the network packet data includes: … … nth frame video frames of the first frame video frame and the second frame video frame, wherein N is a natural number greater than 1;
an image data unpacking unit 202, configured to perform unpacking operation on the network packet data, obtain digital pixel data of each video frame in the network packet data, and perform image processing on each video frame;
an intermittent output unit 203, configured to output the first video frame and the second video frame … … nth video frame subjected to image processing intermittently in sequence;
and an image display unit 204 for outputting the output image driving signal of the video frame to the LED display screen to display an image.
In one embodiment, the intermittent output unit 203 includes:
an interval time acquisition unit for acquiring a preset interval time t;
the control display time unit is used for controlling the current continuous display time of the previous video frame to reduce the interval time t relative to the original continuous display time, and after waiting for the interval time t, starting to output the current video frame and controlling the current continuous display time of the current video frame to reduce the interval time t relative to the original continuous display time;
and the video output unit is used for repeating the steps until all the video frames are output.
In one embodiment, the control display time unit includes:
an nth frame display time unit for controlling the current continuous display time of the nth frame video frame to be
A display time unit of the (n + 1) th frame for controlling the current continuous display time of the (n + 1) th frame of the video frame to be
In an embodiment, the image display processing apparatus 200 for LED display screen further includes:
a first interval time unit, configured to set the interval time t to 0.4-2ms in advance when N is 60;
and the second interval time unit is used for setting the interval time t to be 0.4-1.5ms in advance when the N is 120.
Further, still include:
a third interval time unit, configured to set the interval time t to 0.5-1ms in advance when N is 60;
and the fourth interval time unit is used for setting the interval time t to be 0.4-0.8ms in advance when N is 120.
In one embodiment, the image data unpacking unit 202 includes:
and the image processing unit is used for carrying out gamma transformation, correction and gray extraction on each video frame so as to carry out compensation calculation on the brightness, the chroma and the gray of each video frame.
In one embodiment, the image data unpacking unit 202 includes:
and the format conversion unit is used for carrying out format conversion processing on each video frame.
The embodiment of the invention also provides computer equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the computer program, the image display processing method suitable for the LED display screen is realized.
The computer device of the present invention is a device with computing power in a broad sense, including but not limited to a receiving card, a collecting card, a computer.
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 method for processing image display suitable for an LED display screen as described above is implemented.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 identical elements in a process, method, article, or apparatus that comprises the element.
Claims (7)
1. An image display processing method suitable for an LED display screen is characterized by comprising the following steps:
receiving network packet data transmitted by a sending card, wherein the network packet data comprises: … … nth frame video frames of the first frame video frame and the second frame video frame, wherein N is a natural number greater than 1;
unpacking the network packet data to acquire digital pixel data of each video frame in the network packet data, and performing image processing on each video frame;
sequentially and discontinuously outputting a first video frame subjected to image processing and an Nth video frame … …;
outputting the output image driving signal of the video frame to an LED display screen to display an image;
the sequentially and discontinuously outputting the first video frame and the second video frame … …, the nth video frame, includes:
acquiring preset interval time t;
controlling the current continuous display time of the previous video frame to reduce the interval time t relative to the original continuous display time, and after waiting for the interval time t, starting to output the current video frame and controlling the current continuous display time of the current video frame to reduce the interval time t relative to the original continuous display time;
repeating the steps until all video frames are output;
the controlling the current continuous display time of the previous video frame to be reduced by an interval time t relative to the original continuous display time, and after waiting for the interval time t, starting to output the current video frame and controlling the current continuous display time of the current video frame to be reduced by the interval time t relative to the original continuous display time includes:
controlling the current continuous display time of the nth frame of video frame to be
Controlling the video frame of the (n + 1) th frameThe current continuous display time is
Further comprising:
when N is 60, the interval time t is set to be 0.4-2ms in advance;
when N is 120, the interval time t is set to 0.4-1.5ms in advance.
2. The image display processing method suitable for the LED display screen according to claim 1, further comprising:
when N is 60, the interval time t is set to be 0.5-1ms in advance;
when N is 120, the interval time t is set to 0.4-0.8ms in advance.
3. The image display processing method suitable for the LED display screen according to claim 1, wherein the image processing of each video frame comprises:
and performing gamma transformation, correction and gray extraction on each video frame to perform compensation calculation on the brightness, the chroma and the gray of each video frame.
4. The image display processing method suitable for the LED display screen according to claim 1, wherein after the unpacking operation is performed on the network packet data to obtain each video frame therein and the image processing is performed on each video frame, the method comprises:
and carrying out format conversion processing on each video frame.
5. An image display processing apparatus suitable for an LED display screen, comprising:
the image data receiving unit is used for receiving network packet data transmitted by a sending card, and the network packet data comprises: … … nth frame video frames of the first frame video frame and the second frame video frame, wherein N is a natural number greater than 1;
the image data unpacking unit is used for unpacking the network packet data, acquiring the digital pixel data of each video frame in the network packet data and carrying out image processing on each video frame;
the intermittent output unit is used for sequentially and intermittently outputting the first video frame and the Nth video frame of the second video frame … … after the image processing;
the image display unit is used for outputting an image driving signal of the output video frame to the LED display screen so as to display an image;
the intermittent output unit includes:
an interval time acquisition unit for acquiring a preset interval time t;
the control display time unit is used for controlling the current continuous display time of the previous video frame to reduce the interval time t relative to the original continuous display time, and after waiting for the interval time t, starting to output the current video frame and controlling the current continuous display time of the current video frame to reduce the interval time t relative to the original continuous display time;
the output video unit is used for repeating the steps until all video frames are output;
the control display time unit includes:
an nth frame display time unit for controlling the current continuous display time of the nth frame video frame to be
A display time unit of the (n + 1) th frame for controlling the current continuous display time of the (n + 1) th frame of the video frame to be
When N is 60, the interval time t is set to be 0.4-2ms in advance;
when N is 120, the interval time t is set to 0.4-1.5ms in advance.
6. Computer device, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing an image display processing method adapted for an LED display screen according to any one of claims 1 to 4 when executing the computer program.
7. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, implements the image display processing method adapted for an LED display screen according to any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010052883.6A CN111292677B (en) | 2020-01-17 | 2020-01-17 | Image display processing method and device, computer equipment and storage medium |
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