A method, device and system for testing color values ​​of video image playback equipment

Abstract

The present invention relates to the field of image testing technology, and specifically discloses a method, device and system for testing the color value of a video image playback device, the method comprising: obtaining a test color value of a custom pixel point position in a video image screen to be tested; wherein the video image screen to be tested is: any image screen output by the video image playback device to be tested or an image screen output by the video image playback device to be tested according to a specified test signal required by a test item; based on a color difference calculation formula, and in combination with a preset color value corresponding to the test color value and the custom pixel point position, a color value test result of the video image playback device to be tested is obtained. The present invention can improve the accuracy and efficiency of the color value test of the video image playback device, simplify the test process, and reduce the test cost and time.

Description

Technical Field

[0001] The present invention relates to the field of image testing technology, and in particular to a method, device and system for testing color values ​​of video image playback equipment. Background Art

[0002] At present, the image color quantization accuracy test of existing video players on the market, such as set-top boxes, Blu-ray players, VCD players, DVD players, game consoles, etc., requires that the tested device be connected to the image receiving and analyzing device through a multimedia audio and video interface, and the single or multiple pixel positions of the test point are manually clicked with a mouse, and the image receiving and analyzing device is used to read the color value "XYZ, RGB or YCbCr" of the pixel point at the manually clicked position, and the color value is recorded by manual handwriting, and then substituted into the color difference calculation formula script to calculate the color difference result, and then manually determined by subjective judgment to determine whether the calculation result meets the color value requirements of the relevant test standards. The number of pixels output by the video playback device is related to the image output resolution. The higher the output resolution, the more pixels there are. For example, if the video output resolution is high-definition "1920×1080p", the number of pixels is 1920×1080, which is equal to 2073600; if the video output resolution is ultra-high-definition 4K, that is, 3840×2160p, the number of pixels is 8294400. Therefore, if the test method only relies on manually clicking hundreds, thousands or tens of thousands of pixels in the required test area to obtain color values ​​and manually record them, substitute them into the formula and make subjective judgments, it can not avoid the errors in the position of manually clicking pixels and the errors in the calculation process, and the test process is time-consuming and labor-intensive, which greatly increases the manual testing time and testing costs.

[0003] Therefore, it is urgent to provide a technical solution to solve the above problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a method, device and system for testing the color values ​​of a video image playback device.

[0005] In a first aspect, the present invention provides a method for testing color values ​​of a video image playback device, and the technical solution of the method is as follows:

[0006] Obtaining a test color value of a custom pixel point position in a video image to be tested; wherein the video image to be tested is: any image output by a video image playback device to be tested or an image output by the video image playback device to be tested according to a specified test signal required by a test item;

[0007] Based on the color difference calculation formula and in combination with the preset color value corresponding to the test color value and the custom pixel point position, the color value test result of the video image playback device to be tested is obtained.

[0008] The beneficial effects of the color value testing method of a video image playback device of the present invention are as follows:

[0009] The method of the present invention can improve the accuracy and efficiency of color value testing of video image playback equipment, simplify the testing process, and reduce testing cost and time.

[0010] Based on the above solution, the color value testing method of a video image playback device of the present invention can also be improved as follows.

[0011] In an optional manner, based on a color difference calculation formula and in combination with a preset color value corresponding to the test color value and the custom pixel point position, a step of obtaining a color value test result of the video image playback device to be tested includes:

[0012] Inputting the test color value into the color difference calculation formula to obtain the color difference value of the video image to be tested;

[0013] Based on the size relationship between the color difference value and the preset color value corresponding to the user-defined pixel point position, a color value test result of the video image playback device to be tested is obtained.

[0014] In an optional manner, the step of obtaining a color value test result of the video image playback device to be tested based on the size relationship between the color difference value and the preset color value corresponding to the custom pixel point position includes:

[0015] Determine whether the color difference value is less than or equal to the preset value, and obtain a determination result;

[0016] When the judgment result is yes, it is determined that the color value test result of the video image playback device to be tested passes the color value test; when the judgment result is no, it is determined that the color value test result of the video image playback device to be tested fails the color value test.

[0017] In an optional manner, the method further includes:

[0018] Based on the color value test result of the video image playback device to be tested, a color value test report of the video image playback device to be tested is generated and output for display.

[0019] In an optional manner, the color value test report includes: the test item name and color value test result of the video image playback device to be tested.

[0020] In a second aspect, the present invention provides a device for testing color values ​​of a video image playback device, and the technical solution of the device is as follows:

[0021] It includes: image color capture module, data storage module and data processing module;

[0022] The image color capture module is used to obtain the test color value of the custom pixel position in the video image screen to be tested; wherein the video image screen to be tested is any image screen output by the video image playback device to be tested or an image screen output by the video image playback device to be tested according to the specified test signal required by the test item;

[0023] The data storage module is used to: store the test color value;

[0024] The data processing module is used to obtain a color value test result of the video image playback device to be tested based on a color difference calculation formula and in combination with a preset color value corresponding to the test color value and the custom pixel point position.

[0025] The beneficial effects of the color value testing device for a video image playback device of the present invention are as follows:

[0026] The device of the present invention can improve the accuracy and efficiency of color value testing of video image playback equipment, simplify the testing process, and reduce testing cost and time.

[0027] Based on the above solution, the color value testing device for a video image playback device of the present invention can also be improved as follows.

[0028] In an optional manner, the data processing module is specifically used to: input the test color value into the color difference calculation formula to obtain the color difference value of the video image to be tested;

[0029] Based on the size relationship between the color difference value and the preset color value corresponding to the user-defined pixel point position, a color value test result of the video image playback device to be tested is obtained.

[0030] In an optional manner, the data processing module is specifically used to:

[0031] Determine whether the color difference value is less than or equal to the preset value, and obtain a determination result;

[0032] When the judgment result is yes, it is determined that the color value test result of the video image playback device to be tested passes the color value test; when the judgment result is no, it is determined that the color value test result of the video image playback device to be tested fails the color value test.

[0033] In an optional manner, the device further includes: an output display module; the output display module is used to:

[0034] Based on the color value test result of the video image playback device to be tested, a color value test report of the video image playback device to be tested is generated and output for display.

[0035] In a third aspect, the present invention provides a color value testing system for a video image playback device, the technical solution of the system is as follows:

[0036] The device comprises: a first terminal and a second terminal; the first terminal is used for:

[0037] Receive the test color value of the custom pixel position in the video image to be tested acquired by the second terminal; wherein the video image to be tested is: any image output by the video image playback device to be tested or an image output by the video image playback device to be tested according to a specified test signal required by the test item;

[0038] Based on the color difference calculation formula and in combination with the preset color value corresponding to the test color value and the custom pixel point position, the color value test result of the video image playback device to be tested is obtained.

[0039] The beneficial effects of the color value testing system of a video image playback device of the present invention are as follows:

[0040] The system of the present invention can improve the accuracy and efficiency of color value testing of video image playback equipment, simplify the testing process, and reduce testing cost and time.

[0041] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0043] Figure 1 A schematic diagram of a flow chart of an embodiment of a method for testing color values ​​of a video image playback device according to the present invention;

[0044] Figure 2 A schematic diagram of a designated test signal image screen;

[0045] Figure 3 A schematic diagram of the process of testing the color difference value of a specified test signal;

[0046] Figure 4 This is a schematic diagram of the color value test report;

[0047] Figure 5 A schematic structural diagram of an embodiment of a video image playback device color value testing device of the present invention;

[0048] Figure 6 The present invention is a structural diagram of an embodiment of a color value testing system for a video image playback device according to the present invention. DETAILED DESCRIPTION

[0049] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0050] Figure 1 A flow chart of an embodiment of a method for testing the color value of a video image playback device provided by the present invention is shown. The method for testing the color value of a video image playback device can be executed by an electronic device such as a terminal device or a server. The terminal device can be any fixed or mobile terminal such as a user equipment (UE), a mobile device, a user terminal, a terminal, a cellular phone, a cordless phone, a personal digital assistant (PDA), a handheld device, a computing device, a vehicle-mounted device, a wearable device, etc. The server can be a single server or a server cluster composed of multiple servers. Any electronic device can implement the method for testing the color value of a video image playback device by calling computer-readable instructions stored in a memory through a processor. Figure 1 As shown, the following steps are included:

[0051] S1. Obtain a test color value of a custom pixel point position in a video image to be tested.

[0052] The video image to be tested is any image output by the video image player to be tested or an image output by the video image player to be tested according to a specified test signal required by the test item. The video image player to be tested includes but is not limited to set-top boxes, Blu-ray players, VCD players, DVD players, game consoles and other devices. Figure 2 As shown, in this embodiment, the custom pixel point is a pixel point (at any position of the color block) of a custom color block in a specified test signal. The type of the test color value can be XYZ, RGB or YCbCr.

[0053] It should be noted that the test items are determined according to the test information selected by the user.

[0054] S2. Based on a color difference calculation formula and in combination with a preset color value corresponding to the test color value and the custom pixel point position, a color value test result of the video image playback device to be tested is obtained.

[0055] Specifically, Figure 3 As shown, S2 includes:

[0056] S21. Input the test color value into the color difference calculation formula to obtain the color difference value of the video image to be tested.

[0057] S22. Obtain a color value test result of the video image playback device to be tested based on a size relationship between the color difference value and a preset color value corresponding to the user-defined pixel point position.

[0058] The color difference calculation formula is used to calculate the color difference between the test color value of each custom pixel in the video image to be tested and the corresponding preset color value. There are many color difference calculation formulas. One or more of them are selected for calculation according to the actual situation, and there is no restriction here. The test items can be one or more, and each test item corresponds to a color value test result. The color value test results include: passing the color value test and failing the color value test.

[0059] In an optional manner, S22 includes:

[0060] Determine whether the color difference value is less than or equal to the preset value, and obtain a determination result.

[0061] The preset value is determined according to the content of the test item, and may be set to 5 by default, or may be set according to actual conditions, and there is no limit here.

[0062] When the judgment result is yes, it is determined that the color value test result of the video image playback device to be tested passes the color value test; when the judgment result is no, it is determined that the color value test result of the video image playback device to be tested fails the color value test.

[0063] In an optional manner, the method further includes:

[0064] Based on the color value test result of the video image playback device to be tested, a color value test report of the video image playback device to be tested is generated and output for display.

[0065] The color value test report includes, but is not limited to: the test item name and color value test result of the video image playback device to be tested.

[0066] It should be noted that if Figure 4As shown, the color value test report can also include detailed test results. A link to view detailed test results is set on the display page. By clicking the link, you can view data such as the test color value of each color block (custom pixel point) and the color difference value of the video image to be tested.

[0067] The technical solution of this embodiment can improve the accuracy and efficiency of the color value test of the video image playback device, simplify the test process, and reduce the test cost and time.

[0068] Figure 5 FIG. 2 is a schematic diagram showing a structure of an embodiment of a video image playback device color value testing device provided by the present invention. Figure 5 As shown, the device includes: an image color capture module, a data storage module and a data processing module;

[0069] The image color capture module is used to obtain the test color value of the custom pixel position in the video image screen to be tested; wherein the video image screen to be tested is any image screen output by the video image playback device to be tested or an image screen output by the video image playback device to be tested according to the specified test signal required by the test item;

[0070] The data storage module is used to: store the test color value;

[0071] The data processing module is used to obtain a color value test result of the video image playback device to be tested based on a color difference calculation formula and in combination with a preset color value corresponding to the test color value and the custom pixel point position.

[0072] It should be noted that the device may also include: a high-speed interface and an external communication module. The high-speed interface is used to receive multimedia information and test signals broadcast by the video image playback device to be tested, and output monitoring signals to the monitoring device; the external communication module is used to communicate data information with an external control device.

[0073] In an optional manner, the data processing module is specifically used to: input the test color value into the color difference calculation formula to obtain the color difference value of the video image to be tested;

[0074] Based on the size relationship between the color difference value and the preset color value corresponding to the user-defined pixel point position, a color value test result of the video image playback device to be tested is obtained.

[0075] In an optional manner, the data processing module is specifically used to:

[0076] Determine whether the color difference value is less than or equal to the preset value, and obtain a determination result;

[0077] When the judgment result is yes, it is determined that the color value test result of the video image playback device to be tested passes the color value test; when the judgment result is no, it is determined that the color value test result of the video image playback device to be tested fails the color value test.

[0078] In an optional manner, the device further includes: an output display module; the output display module is used to:

[0079] Based on the color value test result of the video image playback device to be tested, a color value test report of the video image playback device to be tested is generated and output for display.

[0080] The technical solution of this embodiment can improve the accuracy and efficiency of the color value test of the video image playback device, simplify the test process, and reduce the test cost and time.

[0081] The above parameters and steps for each module to implement corresponding functions in the video image playback device color value testing device of this embodiment can refer to the parameters and steps in the embodiment of the video image playback device color value testing method above, and will not be repeated here.

[0082] Figure 6 FIG. 2 is a schematic diagram showing a structure of an embodiment of a color value test system for a video image playback device provided by the present invention. Figure 6 As shown, the system 300 includes: a first terminal 310 and a second terminal 320; the first terminal 310 is used to:

[0083] Receive the test color value of the custom pixel position in the video image to be tested acquired by the second terminal 320; wherein the video image to be tested is: any image output by the video image playback device to be tested or an image output by the video image playback device to be tested according to a specified test signal required by the test item;

[0084] Based on the color difference calculation formula and in combination with the preset color value corresponding to the test color value and the custom pixel point position, the color value test result of the video image playback device to be tested is obtained.

[0085] In an optional manner, the first terminal 310 is specifically configured to:

[0086] Inputting the test color value of each custom pixel point of the color block in the video image to be tested into the color difference calculation formula to obtain the color difference value of the video image to be tested;

[0087] Based on the size relationship between the color difference value and the preset value, a color value test result of the target test item is obtained.

[0088] In an optional manner, the first terminal 310 is specifically configured to:

[0089] Determine whether the color difference value is less than or equal to the preset value, and obtain a determination result;

[0090] When the judgment result is yes, the color value test result of the target test item is determined to have passed the color value test; when the judgment result is no, the color value test result of the target test item is determined to have failed the color value test.

[0091] In an optional manner, the device further includes: a display device; the first terminal 310 is specifically configured to:

[0092] Based on the color value test result of the target test item, a color value test report of the target test item is generated and outputted and displayed through the display device.

[0093] In an optional manner, the color value test report includes: a test item name and a color value test result.

[0094] The technical solution of this embodiment can improve the accuracy and efficiency of the color value test of the video image playback device, simplify the test process, and reduce the test cost and time.

[0095] The above parameters and steps for each module to implement corresponding functions in the video image playback device color value test system of this embodiment can refer to the parameters and steps in the embodiment of the video image playback device color value test method above, and will not be repeated here.

[0096] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to simplify the present invention and help understand one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. Wherein, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself is a separate embodiment of the present invention.

[0097] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be understood as limitations on the order of execution.

Claims

1. A method for testing color values ​​of a video image playback device, characterized in that: include: Obtaining a test color value of a custom pixel point position in a video image to be tested; wherein the video image to be tested is: any image output by a video image playback device to be tested or an image output by the video image playback device to be tested according to a specified test signal required by a test item; Based on the color difference calculation formula and in combination with the preset color value corresponding to the test color value and the custom pixel point position, the color value test result of the video image playback device to be tested is obtained.

2. The method for testing color values ​​of a video image playback device according to claim 1, characterized in that: The step of obtaining the color value test result of the video image playback device to be tested based on the color difference calculation formula and in combination with the preset color value corresponding to the test color value and the custom pixel point position includes: Inputting the test color value into the color difference calculation formula to obtain the color difference value of the video image to be tested; Based on the size relationship between the color difference value and the preset color value corresponding to the user-defined pixel point position, a color value test result of the video image playback device to be tested is obtained.

3. The method for testing color values ​​of a video image playback device according to claim 2, characterized in that: The step of obtaining a color value test result of the video image playback device to be tested based on the size relationship between the color difference value and the preset color value corresponding to the custom pixel point position includes: Determine whether the color difference value is less than or equal to the preset value, and obtain a determination result; When the judgment result is yes, it is determined that the color value test result of the video image playback device to be tested passes the color value test; when the judgment result is no, it is determined that the color value test result of the video image playback device to be tested fails the color value test.

4. The method for testing color values ​​of a video image playback device according to any one of claims 1 to 3, characterized in that: Also includes: Based on the color value test result of the video image playback device to be tested, a color value test report of the video image playback device to be tested is generated and output for display.

5. The method for testing color values ​​of a video image playback device according to claim 4, characterized in that: The color value test report includes: the test item name and color value test result of the video image playback device to be tested.

6. A color value testing device for a video image playback device, characterized in that: include: Image color capture module, data storage module and data processing module; The image color capture module is used to obtain the test color value of the custom pixel position in the video image screen to be tested; wherein the video image screen to be tested is any image screen output by the video image playback device to be tested or an image screen output by the video image playback device to be tested according to the specified test signal required by the test item; The data storage module is used to: store the test color value; The data processing module is used to obtain a color value test result of the video image playback device to be tested based on a color difference calculation formula and in combination with a preset color value corresponding to the test color value and the custom pixel point position.

7. The video image playback device color value testing device according to claim 6, characterized in that: The data processing module is specifically used to: input the test color value into the color difference calculation formula to obtain the color difference value of the video image to be tested; Based on the size relationship between the color difference value and the preset color value corresponding to the user-defined pixel point position, a color value test result of the video image playback device to be tested is obtained.

8. The video image playback device color value testing device according to claim 7, characterized in that: The data processing module is specifically used for: Determine whether the color difference value is less than or equal to the preset value, and obtain a determination result; When the judgment result is yes, it is determined that the color value test result of the video image playback device to be tested passes the color value test; when the judgment result is no, it is determined that the color value test result of the video image playback device to be tested fails the color value test.

9. The video image playback device color value testing device according to any one of claims 6 to 8, characterized in that: Also includes: Output display module; The output display module is used for: Based on the color value test result of the video image playback device to be tested, a color value test report of the video image playback device to be tested is generated and output for display.

10. A color value testing system for a video image playback device, characterized in that: include: A first terminal and a second terminal; the first terminal is used for: Receive the test color value of the custom pixel position in the video image to be tested acquired by the second terminal; wherein the video image to be tested is: any image output by the video image playback device to be tested or an image output by the video image playback device to be tested according to a specified test signal required by the test item; Based on the color difference calculation formula and in combination with the preset color value corresponding to the test color value and the custom pixel point position, the color value test result of the video image playback device to be tested is obtained.

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