An LED display screen image processing system

Abstract

The present invention relates to the technical field of video image processing, and in particular to an LED display screen image processing system, comprising: an image input module for inputting an initial image into an LED display screen; an image processing module connected to the image processing module, comprising a preprocessing unit for performing a preprocessing operation on the initial image to output an optimized image; a display module connected to the image processing module for displaying the video image; a control module connected to the image input module, the image processing module and the display module respectively, for determining whether the stability of image processing meets the requirements according to the variance of the packet loss rate of the video image, and adjusting the input rate of the video image or adjusting the color balance ratio of the video image according to the average color saturation of the video image when it does not meet the requirements. The present invention achieves an improvement in the stability of image processing.

Description

Technical Field

[0001] The present invention relates to the technical field of video image processing, and in particular to an LED display screen image processing system. Background Art

[0002] In the prior art, LED screen is a new type of imaging electronic device made of light-emitting diodes arranged in sequence. Due to its high brightness, wide viewing angle, long life and other characteristics, it is widely used in products such as outdoor advertising screens. However, some specific details of the video image cannot be fully displayed, so it is necessary to improve the stability of the video image processing process.

[0003] Chinese Patent Publication No.: CN115914506A discloses a method, device and system for image processing on an LED display screen, the method comprising the following steps: receiving the parameters of each display unit of the spliced ​​screen and counting the number of display units through a network connection established with each receiving card; wherein the display unit parameters include identification information, resolution information and its position information in the spliced ​​screen; obtaining the current network bandwidth, and determining the target resolution of the target image according to the current network bandwidth, the number of display units and the display unit parameters; obtaining the original image data, and obtaining the target image data according to the original image data and the target resolution calculation; matching the target image data with each display unit to obtain an image display instruction; and sending the target image data and the image display instruction to each receiving card. It can be seen that the method, device and system for image processing on an LED display screen have the problem that the joints of the image input line are rusted due to long-term use, resulting in input errors when the line inputs video images, thereby reducing the stability of image processing. Summary of the invention

[0004] To this end, the present invention provides an LED display screen image processing system to overcome the problem in the prior art that the joints of the image input circuit rust due to long-term use, resulting in input errors when the circuit inputs video images, thereby reducing the stability of image processing.

[0005] To achieve the above-mentioned purpose, the present invention provides an LED display screen image processing system, comprising: an image input module, used to input an initial image into an LED display screen; an image processing module, which is connected to the image processing module, and includes a preprocessing unit for performing a preprocessing operation on the initial image to output an optimized image, a color conversion unit connected to the preprocessing unit for performing a color space conversion on the optimized image to output a color conversion image, an adjustment unit connected to the color conversion unit for adjusting the resolution of the color conversion image to output a video image, and an image transmission unit connected to the adjustment unit for transmitting the video image; a display module, which is connected to the image processing module, and is used to display the video image; a control module, which is respectively connected to the image input module, the image processing module and the display module, and is used to determine whether the stability of image processing meets the requirements according to the variance of the packet loss rate of the video image, and to adjust the input rate of the video image or adjust the color balance ratio of the video image according to the average color saturation of the video image when it does not meet the requirements, and to adjust the frame rate of the video image in combination with the average color saturation of the video image and the average adjustment time of the video image resolution.

[0006] Furthermore, the preprocessing operation includes sequentially performing denoising, sharpening, contrast adjustment and brightness adjustment operations on the initial image.

[0007] Further, the control module obtains the packet loss rate of the video image in several processing cycles, and calculates the variance of the packet loss rate of the video image, and if the variance of the packet loss rate of the video image satisfies the first variance or the second variance condition, it is determined that the stability of the image processing does not meet the requirement;

[0008] The first variance condition is that the variance of the packet loss rate of the video image is greater than a preset first variance and less than or equal to a preset second variance; the second variance condition is that the variance of the packet loss rate of the video image is greater than a preset second variance.

[0009] Furthermore, the control module preliminarily determines that the distortion degree of the video image does not meet the requirements based on the determination result that the variance of the packet loss rate of the video image only satisfies the first variance condition, and makes a secondary determination on whether the distortion degree of the video image meets the requirements based on the average color saturation of the video image.

[0010] Further, the control module reduces the input rate of the video image based on the determination result that the variance of the packet loss rate of the video image only satisfies the second variance condition;

[0011] The reduction range of the input rate of the video image is determined by the difference between the variance of the packet loss rate of the video image and a preset second variance.

[0012] Furthermore, the control module secondarily determines that the distortion degree of the video image does not meet the requirement when the average color saturation of the video image meets the first saturation condition and the second saturation condition;

[0013] Among them, the first saturation condition is that the average color saturation of the video image is greater than the preset first saturation and less than or equal to the preset second saturation; the second saturation condition is that the average color saturation of the video image is greater than the preset second saturation.

[0014] Furthermore, the control module preliminarily determines that the effectiveness of the resolution adjustment does not meet the requirements based on the determination result that the average color saturation of the video image only satisfies the second saturation condition, and makes a secondary determination on whether the effectiveness of the resolution adjustment meets the requirements based on the average adjustment time of the video image resolution.

[0015] Further, the control module increases the color balance ratio of the video image based on the determination result that the average color saturation of the video image only satisfies the first saturation condition;

[0016] The increase range of the color balance ratio of the video image is determined by the difference between the average color saturation of the video image and a preset first saturation.

[0017] Furthermore, the control module secondarily determines that the effectiveness of resolution adjustment does not meet the requirements based on the determination result that the average adjustment time of the video image resolution is greater than the preset adjustment time, and reduces the frame rate of the video image.

[0018] Furthermore, the reduction range of the frame rate of the video image is determined by the difference between the average adjustment time of the video image resolution and the preset adjustment time.

[0019] Compared with the prior art, the beneficial effect of the present invention lies in that the system of the present invention adjusts the input rate of the video image according to the variance of the packet loss rate of the video image by setting an image input module, an image processing module, a display module and a control module. Due to long-term use, the joints of the image input line are rusted, resulting in interruption or input error when the line inputs the video image, thereby causing problems with the input video image. By reducing the input rate of the video image, the frequency of image errors is reduced, and the reliability of the video image input is improved. By adjusting the color balance ratio of the video image according to the average color saturation of the video image, the power supply voltage of the display screen fluctuates due to the unstable power supply of the power grid, resulting in Electromagnetic interference occurs, which in turn interferes with the color space conversion process, resulting in inaccurate color conversion results. By increasing the color balance ratio of the video image, the color shift caused by electromagnetic interference is reduced, and the color consistency of the overall image is improved. The frame rate of the video image is adjusted according to the average adjustment time of the video image resolution. Due to long-term use, dust accumulates on the signal processor inside the display screen, which affects the operation of the signal processor, resulting in the failure to meet the requirements when adjusting the image resolution, thereby increasing the time for adjusting the image resolution. By reducing the frame rate of the video image, the workload of the signal processor is reduced, the image resolution is improved, and the stability of image processing is improved.

[0020] Furthermore, the system of the present invention adjusts the input rate of the video image by setting a preset first variance and a preset second variance. Due to long-term use, the joints of the image input line may rust, resulting in interruption or input error when the line inputs the video image, thereby causing problems with the input video image. By reducing the input rate of the video image, the frequency of image errors is reduced, the reliability of the video image input is improved, and the stability of image processing is further improved.

[0021] Furthermore, the system of the present invention adjusts the color balance ratio of the video image by setting a preset first saturation and a preset second saturation. Since the unstable power supply of the power grid causes the power supply voltage of the display screen to fluctuate, electromagnetic interference occurs, which in turn interferes with the process of color space conversion, resulting in inaccurate color conversion results. By increasing the color balance ratio of the video image, the color deviation caused by electromagnetic interference is reduced, the color consistency of the overall image is improved, and the stability of image processing is further improved.

[0022] Furthermore, the system of the present invention adjusts the frame rate of the video image by setting a preset adjustment time. Dust accumulates on the signal processor inside the display screen due to long-term use, which affects the operation of the signal processor, resulting in failure to meet the requirements when adjusting the image resolution, thereby increasing the time for adjusting the image resolution. By reducing the frame rate of the video image, the workload of the signal processor is reduced, the image resolution is improved, and the stability of image processing is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall structural block diagram of the LED display screen image processing system according to an embodiment of the present invention;

[0024] Figure 2 This is a logic flow chart of the LED display screen image processing system according to an embodiment of the present invention;

[0025] Figure 3 This is a specific structural block diagram of the image processing module of the LED display screen image processing system according to an embodiment of the present invention;

[0026] Figure 4 The present invention is a block diagram of the connection structure of the image processing module and the control module of the LED display screen image processing system according to the embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0029] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0030] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, they are respectively an overall structural block diagram of the LED display screen image processing system according to an embodiment of the present invention, a logic flow chart, a specific structural block diagram of the image processing module, and a connection structural block diagram of the image processing module and the control module. An LED display screen image processing system according to the present invention comprises:

[0032] An image input module is used to input an initial image into the LED display screen;

[0033] an image processing module connected to the image processing module, comprising a preprocessing unit for performing a preprocessing operation on the initial image to output an optimized image, a color conversion unit connected to the preprocessing unit for performing a color space conversion on the optimized image to output a color converted image, an adjustment unit connected to the color conversion unit for performing a resolution adjustment on the color converted image to output a video image, and an image transmission unit connected to the adjustment unit for transmitting the video image;

[0034] A display module, connected to the image processing module, for displaying the video image;

[0035] A control module, which is respectively connected to the image input module, the image processing module and the display module, and is used to determine whether the stability of image processing meets the requirements according to the variance of the packet loss rate of the video image, and to adjust the input rate of the video image when it does not meet the requirements or adjust the color balance ratio of the video image according to the average color saturation of the video image, and to adjust the frame rate of the video image in combination with the average color saturation of the video image and the average adjustment time of the video image resolution.

[0036] Specifically, the initial image is an input image with original information.

[0037] Specifically, optimizing an image is to use a preprocessing algorithm on an initial image to improve image quality.

[0038] Specifically, color conversion of an image is to convert an optimized image from one color space to another color space, thereby changing the way colors are represented.

[0039] Specifically, the video image is a complete video image that is finally generated.

[0040] Specifically, the color balance ratio of a video image refers to the intensity ratio between different color channels in the video image.

[0041] Specifically, the frame rate of a video image refers to the number of image frames displayed per second during video playback.

[0042] In implementation, the system of the present invention is provided with an image input module, an image processing module, a display module and a control module, and the input rate of the video image is adjusted according to the variance of the packet loss rate of the video image. Due to long-term use, the joints of the image input line are rusted, resulting in interruption or input error when the line inputs the video image, thereby causing problems with the input video image. By reducing the input rate of the video image, the frequency of image errors is reduced, and the reliability of the video image input is improved. By adjusting the color balance ratio of the video image according to the average color saturation of the video image, the power supply voltage of the display screen fluctuates due to the unstable power supply of the power grid, resulting in electromagnetic interference. This will interfere with the color space conversion process and cause inaccurate color conversion results. By increasing the color balance ratio of the video image, the color deviation caused by electromagnetic interference is reduced, and the color consistency of the overall image is improved. By adjusting the frame rate of the video image according to the average adjustment time of the video image resolution, dust accumulates on the signal processor inside the display due to long-term use, which affects the operation of the signal processor, resulting in the failure to meet the requirements when adjusting the image resolution, thereby increasing the time for adjusting the image resolution. By reducing the frame rate of the video image, the workload of the signal processor is reduced, the image resolution is improved, and the stability of image processing is improved.

[0043] Specifically, the preprocessing operation includes performing denoising, sharpening, contrast adjustment and brightness adjustment operations on the initial image in sequence.

[0044] Specifically, the control module obtains the packet loss rate of the video image in several processing cycles, and calculates the variance of the packet loss rate of the video image, and if the variance of the packet loss rate of the video image satisfies the first variance or the second variance condition, it is determined that the stability of the image processing does not meet the requirements;

[0045] The first variance condition is that the variance of the packet loss rate of the video image is greater than a preset first variance and less than or equal to a preset second variance; the second variance condition is that the variance of the packet loss rate of the video image is greater than a preset second variance.

[0046] It can be understood that the three intervals corresponding to the preset first variance Q1 and the preset second variance Q2 correspond to three situations respectively. The first interval is Q≤Q1, corresponding to the situation where the stability of image processing meets the requirements; the second interval is Q1<Q≤Q2, corresponding to the situation where the unstable power supply of the power grid causes the power supply voltage of the display screen to fluctuate, resulting in electromagnetic interference, which in turn interferes with the process of color space conversion and causes inaccurate color conversion results; the third interval is Q>Q2, corresponding to the situation where the connector of the image input line is rusted due to long-term use, resulting in interruption or input error when the line inputs the video image, thereby causing problems with the input video image. In practice, the range of Q1 is generally [5%, 15%], and the range of Q2 is generally [15%, 25%].

[0047] Preferably, the preferred embodiment of the preset first variance Q1 is 10%, and the preferred embodiment of the preset second variance Q2 is 20%.

[0048] Specifically, the variance of the packet loss rate of the video image is recorded as Q.

[0049] Specifically, the variance of the packet loss rate of the video image is the variance of the packet loss rate of the video image within several processing cycles. The calculation method of the variance of the packet loss rate of the video image is a conventional technical means well known to those skilled in the art, so the calculation process of the variance of the packet loss rate of the video image will not be repeated here.

[0050] In implementation, the system of the present invention determines the stability of image processing by setting a preset first variance and a preset second variance, thereby reducing the impact of decreased accuracy of image processing due to inaccurate determination of the stability of image processing, and further improving the stability of image processing.

[0051] Specifically, the control module preliminarily determines that the distortion degree of the video image does not meet the requirements based on the determination result that the variance of the packet loss rate of the video image only satisfies the first variance condition, and makes a secondary determination on whether the distortion degree of the video image meets the requirements based on the average color saturation of the video image.

[0052] Specifically, the control module reduces the input rate of the video image based on the determination result that the variance of the packet loss rate of the video image only satisfies the second variance condition;

[0053] The reduction range of the input rate of the video image is determined by the difference between the variance of the packet loss rate of the video image and a preset second variance.

[0054] Specifically, the calculation formula of the reduced video image input rate is:

[0055]

[0056] Wherein, V' is the reduced input rate of the video image, V is the current input rate of the video image, A is the minimum unit variance for adjusting the input rate of the video image, and v is the input rate of the video image when the variance of the packet loss rate of the video image is the minimum unit variance.

[0057] In practice, the value of A is generally 20% to 30%. Preferably, the preferred embodiment of A is 25%.

[0058] In implementation, the optional value range of v is [3Mbps, 5Mbps]. Preferably, when the input rate of the video image is greater than 4Mbps, the video image input may be interrupted. Therefore, the preferred embodiment of v is 4Mbps.

[0059] Specifically, Mbps is the unit of the input rate of video images, which means megabits per second.

[0060] For example, when using the LED display screen image processing system to process video images, V = 5Mbps, Q = 30%, V' = =3.4Mbps.

[0061] In implementation, the system of the present invention adjusts the input rate of video images by setting a preset first variance and a preset second variance. Due to long-term use, the joints of the image input line are rusted, resulting in interruptions or input errors when the line inputs the video image, thereby causing problems with the input video image. By reducing the input rate of the video image, the frequency of image errors is reduced, the reliability of the video image input is improved, and the stability of image processing is further improved.

[0062] Specifically, the control module determines for the second time that the distortion degree of the video image does not meet the requirement when the average color saturation of the video image meets the first saturation condition and the second saturation condition;

[0063] Among them, the first saturation condition is that the average color saturation of the video image is greater than the preset first saturation and less than or equal to the preset second saturation; the second saturation condition is that the average color saturation of the video image is greater than the preset second saturation.

[0064] It can be understood that the three intervals corresponding to the preset first saturation P1 and the preset second saturation P2 correspond to three situations respectively. The first interval is P≤P1, corresponding to the situation where the distortion degree of the video image meets the requirements; the second interval is P1<P≤P2, corresponding to the situation where the unstable power supply of the power grid causes the power supply voltage of the display screen to fluctuate, resulting in electromagnetic interference, which in turn interferes with the process of color space conversion and causes inaccurate color conversion results; the third interval is P>P2, corresponding to the situation where long-term use causes dust to accumulate on the signal processor inside the display screen, causing the operation of the signal processor to be affected, resulting in the situation where the resolution of the image cannot meet the requirements when being adjusted. In practice, the range of P1 is generally selected from [45%, 55%], and the range of P2 is generally selected from [55%, 65%].

[0065] Preferably, the preferred embodiment of the preset first saturation P1 is 50%, and the preferred embodiment of the preset second saturation P2 is 60%.

[0066] Specifically, the average color saturation of the video image is denoted by P.

[0067] Specifically, the calculation formula for the average color saturation of a video image is:

[0068]

[0069] Where P is the average color saturation of the video image, X a is the color saturation of the video image in the ath segmented area, n is the number of segmented areas, and n is a natural number greater than or equal to 1.

[0070] Specifically, the process of segmenting the video image is to divide the LED display screen into a number of LED display screen blocks of the same size at equal intervals, and the color saturation of the video image is the color saturation of each LED display screen block.

[0071] In implementation, the system of the present invention performs a secondary determination on the degree of distortion of the video image by setting a preset first saturation and a preset second saturation, thereby reducing the impact of decreased stability in image processing due to inaccurate secondary determination of the degree of distortion of the video image, and further improving the stability of image processing.

[0072] Specifically, the control module preliminarily determines that the effectiveness of the resolution adjustment does not meet the requirements based on the determination result that the average color saturation of the video image only satisfies the second saturation condition, and makes a secondary determination on whether the effectiveness of the resolution adjustment meets the requirements based on the average adjustment time of the video image resolution.

[0073] Specifically, the control module increases the color balance ratio of the video image based on the determination result that the average color saturation of the video image only satisfies the first saturation condition;

[0074] The increase range of the color balance ratio of the video image is determined by the difference between the average color saturation of the video image and a preset first saturation.

[0075] Specifically, the calculation formula for the color balance ratio of the enlarged video image is:

[0076]

[0077] Among them, H' is the color balance ratio of the increased video image, H is the color balance ratio of the current video image, B is the minimum unit saturation for adjusting the color balance ratio of the video image, and h is the color balance ratio of the video image when the average color saturation of the video image is the minimum unit saturation.

[0078] In practice, the value of B is generally 60% to 70%. Preferably, the preferred embodiment of B is 65%.

[0079] In implementation, the optional value range of h is [30%, 50%]. Preferably, when the color balance ratio of the video image is less than 40%, the color conversion result may be inaccurate. Therefore, the preferred embodiment of h is 40%.

[0080] Specifically, when the value of H' is a decimal, the value of H' is automatically rounded up to an integer.

[0081] For example, when using the LED display screen image processing system to process video images, H = 35%, P = 65%, and H' = ≈45%.

[0082] In implementation, the system of the present invention adjusts the color balance ratio of the video image by setting a preset first saturation and a preset second saturation. The unstable power supply of the power grid causes the power supply voltage of the display screen to fluctuate, resulting in electromagnetic interference, which in turn interferes with the color space conversion process, resulting in inaccurate color conversion results. By increasing the color balance ratio of the video image, the color deviation caused by electromagnetic interference is reduced, the color consistency of the overall image is improved, and the stability of image processing is further improved.

[0083] Specifically, the control module secondarily determines that the effectiveness of resolution adjustment does not meet the requirements based on the determination result that the average adjustment time of the video image resolution is greater than the preset adjustment time, and reduces the frame rate of the video image.

[0084] It can be understood that the two intervals corresponding to the preset adjustment time Y0 correspond to two situations. The first interval is Y≤Y0, corresponding to the situation where the effectiveness of the resolution adjustment meets the requirements; the second interval is Y>Y0, corresponding to the situation where dust accumulates on the signal processor inside the display screen due to long-term use, which affects the operation of the signal processor and makes it impossible to meet the requirements when adjusting the image resolution. In practice, Y0 is generally selected in the range of [30ms, 50ms].

[0085] Preferably, the preferred embodiment of the preset adjustment time length Y0 is 40 ms.

[0086] Specifically, the average adjustment duration of the video image resolution is recorded as Y.

[0087] Specifically, the calculation formula for the average adjustment time of the video image resolution is:

[0088]

[0089] Among them, Y is the average adjustment time of the video image resolution, E f is the adjustment duration of the resolution of the f-th video image frame, i is the number of video image frames, and i is a natural number greater than or equal to 1.

[0090] In implementation, the system of the present invention performs a secondary judgment on the effectiveness of the resolution adjustment by setting a preset adjustment time, thereby reducing the impact of the decreased stability of image processing due to inaccurate secondary judgment on the effectiveness of the resolution adjustment, and further improving the stability of image processing.

[0091] Specifically, the reduction range of the frame rate of the video image is determined by the difference between the average adjustment time of the video image resolution and the preset adjustment time.

[0092] Specifically, the calculation formula for the frame rate of the reduced video image is:

[0093]

[0094] Among them, L' is the reduced frame rate of the video image, L is the current frame rate of the video image, C is the minimum unit adjustment time for adjusting the frame rate of the video image, and l is the frame rate of the video image when the average adjustment time of the video image resolution is the minimum unit adjustment time.

[0095] In practice, the value of C is generally 45 ms to 55 ms. Preferably, the preferred embodiment of C is 50 ms.

[0096] In implementation, the optional value range of l is [20FPS, 30FPS]. Preferably, when the frame rate of the video image is greater than 25FPS, it may cause the situation where the resolution of the image cannot be adjusted as required. Therefore, the preferred embodiment of l is 25FPS.

[0097] Specifically, FPS is a unit of the frame rate of a video image, which means frames per second.

[0098] For example, when using the LED display screen image processing system to process video images, L = 30FPS, Y = 60ms, and L' = =20FPS.

[0099] In implementation, the system of the present invention adjusts the frame rate of the video image by setting a preset adjustment time. Due to long-term use, dust accumulates on the signal processor inside the display screen, which affects the operation of the signal processor, resulting in the failure to meet the requirements when adjusting the image resolution, thereby increasing the time for adjusting the image resolution. By reducing the frame rate of the video image, the workload of the signal processor is reduced, the image resolution is improved, and the stability of image processing is further improved.

[0100] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An LED display screen image processing system, characterized in that: include: An image input module is used to input an initial image into the LED display screen; an image processing module connected to the image input module, comprising a preprocessing unit for performing a preprocessing operation on the initial image to output an optimized image, a color conversion unit connected to the preprocessing unit for performing a color space conversion on the optimized image to output a color converted image, an adjustment unit connected to the color conversion unit for performing a resolution adjustment on the color converted image to output a video image, and an image transmission unit connected to the adjustment unit for transmitting the video image; A display module, connected to the image processing module, for displaying the video image; a control module, which is connected to the image input module, the image processing module and the display module respectively, and is used to determine that the stability of image processing does not meet the requirements and adjust the input rate of the video image when the variance of the packet loss rate of the video image meets the second variance condition; if the variance of the packet loss rate of the video image meets the first variance condition, preliminarily determine that the distortion degree of the video image does not meet the requirements and make a secondary determination on whether the distortion degree of the video image meets the requirements based on the average color saturation of the video image; if the average color saturation of the video image meets the first saturation condition, then make a secondary determination that the distortion degree of the video image does not meet the requirements and adjust the color balance ratio of the video image; if the average color saturation of the video image meets the second saturation condition, preliminarily determine that the adjustment validity of the resolution does not meet the requirements and make a secondary determination on whether the adjustment validity of the resolution meets the requirements based on the average adjustment time of the video image resolution; if the average adjustment time of the video image resolution is greater than the preset adjustment time, then make a secondary determination that the adjustment validity of the resolution does not meet the requirements and adjust the frame rate of the video image; The preprocessing operation includes performing denoising, sharpening, contrast adjustment and brightness adjustment operations on the initial image in sequence; The control module obtains the packet loss rate of the video image in several processing cycles, and calculates the variance of the packet loss rate of the video image, and if the variance of the packet loss rate of the video image satisfies the first variance condition or the second variance condition, determines that the stability of the image processing does not meet the requirements; The first variance condition is that the variance of the packet loss rate of the video image is greater than the preset first variance and less than or equal to the preset second variance; the second variance condition is that the variance of the packet loss rate of the video image is greater than the preset second variance; The control module reduces the input rate of the video image based on the determination result that the variance of the packet loss rate of the video image only satisfies the second variance condition; The reduction range of the input rate of the video image is determined by the difference between the variance of the packet loss rate of the video image and a preset second variance; The first saturation condition is that the average color saturation of the video image is greater than the preset first saturation and less than or equal to the preset second saturation; the second saturation condition is that the average color saturation of the video image is greater than the preset second saturation.

2. The LED display screen image processing system according to claim 1, characterized in that: The control module increases the color balance ratio of the video image based on a determination result that the average color saturation of the video image only satisfies the first saturation condition; The increase range of the color balance ratio of the video image is determined by the difference between the average color saturation of the video image and a preset first saturation.

3. The LED display screen image processing system according to claim 2, characterized in that: The control module secondarily determines that the effectiveness of resolution adjustment does not meet the requirements based on the determination result that the average adjustment time of the video image resolution is greater than the preset adjustment time, and reduces the frame rate of the video image.

4. The LED display screen image processing system according to claim 3, characterized in that: The reduction range of the frame rate of the video image is determined by the difference between the average adjustment time length of the video image resolution and the preset adjustment time length.

Images