CN114422636B - Android-based method for generating test image to detect display - Google Patents
Android-based method for generating test image to detect display Download PDFInfo
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- CN114422636B CN114422636B CN202111542274.XA CN202111542274A CN114422636B CN 114422636 B CN114422636 B CN 114422636B CN 202111542274 A CN202111542274 A CN 202111542274A CN 114422636 B CN114422636 B CN 114422636B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
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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
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
Abstract
The invention provides a method for generating a test image to detect a display based on Android, which is characterized in that the function of various graphs required by a test screen is directly generated by utilizing a graph API of the Android, and the generated graphs are projected to the screen of the display to be tested through an interface and a converter of a mobile phone; compared with a professional signal generator which is complex in use method and needs a large amount of time to build an environment, the method can quickly generate a required test image, can quickly edit and replace, is suitable for more test machine types and wider test requirements, and is especially obvious in excellence under the conditions that the reserved time is short and the test result needs to be quickly obtained.
Description
Technical Field
The invention relates to the technical field of optical measurement data acquisition of displays, in particular to a method for generating a test image to detect a display based on Android.
Background
The medical display has high requirements on the screen, so that in the process of testing the screen of the medical display, a plurality of different images need to be output on which screen is used for detecting the display quality of the screen. For example, the brightness of the screen needs to be detected by outputting images with different gray scales, and a brightness curve is verified; outputting a pure-color picture, and detecting dark spots and bright spots of a screen; the brightness uniformity of a specific picture detection screen needs to be output; the corresponding performance of the detection screen such as a gray-scale image, a color bar image and the like needs to be output.
At present, a professional signal generator similar to Chroma can output signals required above, but the operation is complex, the construction environment is time-consuming, and when the screen quality of a display needs to be detected quickly, the requirement cannot be met frequently, so that a method for outputting required test images (test patterns) more quickly is needed, the required test images can be output quickly, and the screen quality of the display is detected by a screen to be detected.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a method for generating a test image to detect a display based on Android.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for generating a test image detection display based on Android comprises the steps of directly generating functions of various graphs required by a test screen by utilizing a graph API of the Android, and projecting the generated graphs to the screen of the display to be tested through an interface and a converter of a mobile phone; the method specifically comprises the following steps:
s1, making a user operation interface of a mobile phone end, wherein the user operation interface comprises a preset test image menu for a user to select, a preview frame of the mobile phone end and a self-defined test image import menu;
s2, selecting a required test image, and obtaining a test image serial number selected by a user by the Android device side to judge whether the condition is a, a condition b1 or a condition b2;
a. if the required test image is one of the preset test image menus for the user to select, directly clicking and selecting from the preset test image menus;
b. if the required test image is not in the preset test image menu, selecting the user-defined test image import menu, wherein the user-defined test image import menu comprises a drawing image option and an import local image option;
b1, if an image supported by an Android graphics API is needed, inputting parameters needed for drawing the graphics and confirming the parameters;
b2, if a test image stored in the Android terminal of the mobile phone is needed, selecting an import local image option and importing the test image stored in the Android terminal of the mobile phone;
s3, generating a required test image;
under the condition of selecting a in S2, calling a corresponding function in an android.
Under the condition of b1 in S2, calling a corresponding function in an android.
Under the condition of b2 in the S2, calling a file processing function, and exporting a test image locally stored at the Android equipment terminal;
and S4, projecting the derived test image onto a detected display screen through an interface and a converter of the mobile phone, so as to realize screen detection of the display.
Preferably, the user manipulation interface at the mobile phone end exists in the form of an APP, a webpage or an applet.
More preferably, the preset test image menu includes Red pure color map, green pure color map, blue pure color map, color bar map and 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% gray scale map.
More preferably, in S2, the B1 option is selected, and the user operation interface jumps out of the input box for the user to input R, G, and B values, and generate the corresponding test image.
More preferably, after S3 is completed, the mobile phone jumps out of the preview box to display the generated picture preview, and executes the operation of S4 after clicking the confirm button.
More preferably, in S4, the interface of the mobile phone itself is a type-c interface.
More preferably, in S4, the converter is a type-c to DP docking station or a type-c to DP cable, the type-c terminal is connected to a type-c interface of the mobile phone, and the DP docking station or the DP cable is connected to the detected display.
Compared with the prior art, the method for generating the test image to detect the display based on the Android, provided by the invention, has the advantages that the functions of various graphs required by a test screen are directly generated by utilizing the graph API of the Android, and the generated graphs are projected onto the screen of the display to be tested through the interface and the converter of the mobile phone; compared with a professional signal generator which is complex in use method and needs a large amount of time to build an environment, the method can quickly generate a required test image, can quickly edit and replace, is suitable for more test machine types and wider test requirements, and is especially obvious in excellence under the conditions that the reserved time is short and the test result needs to be quickly obtained.
Drawings
Fig. 1 is a flowchart of a method for generating a test image to inspect a display based on Android.
Detailed description of the preferred embodiments
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to the attached drawing 1, the method for generating the test image detection display based on the Android directly generates various graphics functions required by a test screen by using a graphics API of the Android, and throws the generated graphics onto the screen of the display to be tested through an interface and a converter of a mobile phone; the method specifically comprises the following steps:
s1, making a user operation interface of a mobile phone end, wherein the user operation interface comprises a preset test image menu for a user to select, a preview frame of the mobile phone end and a self-defined test image import menu;
s2, selecting a required test image, and obtaining a test image serial number selected by a user by the Android device side to judge whether the condition is a, a condition b1 or a condition b2;
a. if the required test image is one of the preset test image menus for the user to select, directly clicking and selecting from the preset test image menus;
b. if the required test image is not in the preset test image menu, selecting the user-defined test image import menu, wherein the user-defined test image import menu comprises a drawing image option and an import local image option;
b1, if an image supported by an Android graphics API is needed, inputting parameters needed for drawing the graphics and confirming the parameters;
b2, if a test image stored in the Android terminal of the mobile phone is needed, selecting an import local image option and importing the test image stored in the Android terminal of the mobile phone;
s3, generating a required test image;
under the condition of selecting a in S2, calling a corresponding function in an android.
Under the condition of b1 in S2, calling a corresponding function in an android.
Under the condition of b2 in the S2, calling a file processing function, and exporting a test image locally stored at the Android equipment terminal;
and S4, projecting the derived test image onto a detected display screen through an interface and a converter of the mobile phone, so as to realize screen detection of the display.
In a traditional test method, a professional signal generator similar to Chroma is required to output a required signal to a display with a test, so that a test image is displayed, and the purpose of detecting the display is achieved. However, at present, the function development of the mobile phone is rapid, especially, the Android system provides a large amount of APIs which can be used for rapidly developing applications with rich functions, wherein the graphic API of the Android system can generate various graphics required by a test screen.
The detection method is more convenient to operate, particularly for scenes needing quick detection, time for building a test environment can be saved, and a test picture is quickly generated and sent to a display to obtain a detection effect. And the Android system is used for generating test patterns, so that the types are richer, the limitation is smaller, and the method is suitable for more tester types and wider test requirements.
In a preferred embodiment, the user operation interface of the mobile phone end exists in the form of an APP, a webpage or an applet, a user holds a mobile phone with an Android system, installs the APP, the webpage or the applet of the test method, connects the mobile phone end with the display end to be detected, and operates at the mobile phone end, so that the test method is convenient and easy to understand and has no use threshold.
In a preferred embodiment, the preset test image menu comprises a Red solid color map, a Green solid color map, a Blue solid color map, a color bar map, and 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% gray scale map; the patterns are common test images for display detection, and after the patterns are preset, a user can directly click the patterns without additional operation, so that the corresponding test images can be quickly led out to the display for detection.
In a preferred embodiment, in S2, the B1 option is selected, and the user operation interface jumps out of the input box for the user to input R, G, and B values, and generate a corresponding test image; if Red solid tone is selected, the image color parameters can be set to R =255, g =0, B =0; selecting a 10% grayscale map, the graphic color parameters R =10, g =10, b =10 can be set; the method has the advantages that the parameter values of R, G and B can be set automatically according to actual requirements, the corresponding function in the android.
In a more preferred embodiment, after S3 is completed, the mobile phone jumps out of the preview box to display the generated picture preview, and executes the operation of S4 after clicking the confirmation button to help the user check whether there is a parameter input error or a picture import error before launching the test pattern, thereby avoiding the test image from deviating.
In a preferred embodiment, in S4, the own interface of the mobile phone is a type-c interface. More preferably, in S4, the converter is a type-c to DP docking station or a type-c to DP cable, the type-c end is connected to a type-c interface of the mobile phone, and the DP docking station or the DP cable is connected to the detected display.
Compared with a professional signal generator which is complex in use method and needs a large amount of time to build an environment, the method can quickly generate a required test image, can be quickly edited and replaced, is suitable for more test machine types and wider test requirements, and is especially obvious in superiority under the conditions that the reserved time is short and the test result needs to be quickly obtained.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (5)
1. A method for generating a test image to detect a display based on Android is characterized in that a graphic API of the Android is used for directly generating functions of various graphics required by a test screen, and the generated graphics are projected onto the screen of the display to be tested through an interface and a converter of a mobile phone; the method specifically comprises the following steps:
s1, making a user operation interface of a mobile phone end, wherein the user operation interface comprises a preset test image menu for a user to select, a preview frame of the mobile phone end and a self-defined test image import menu;
s2, selecting a required test image, and obtaining a test image serial number selected by a user by the Android device side to judge whether the condition is a, a condition b1 or a condition b2;
a. if the required test image is one of the preset test image menus for the user to select, directly clicking and selecting from the preset test image menus; the preset test image menu comprises a Red pure color image, a Green pure color image, a Blue pure color image, a color bar image and 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% gray level images;
b. if the required test image is not in the preset test image menu, selecting the user-defined test image import menu, wherein the user-defined test image import menu comprises a drawing image option and an import local image option;
b1, if an image supported by an Android graphic API is needed, jumping out of an input box from a user operation interface for a user to input R, G and B values, generating a corresponding test image, and inputting and confirming parameters needed for drawing the graphic;
b2, if a test image stored in the local of the mobile phone is needed, selecting an import local image option and importing the test image stored in the local of the Android end of the mobile phone;
s3, generating a required test image;
under the condition of selecting a in the S2, calling a corresponding function in an android.
Under the condition of b1 in S2, calling a corresponding function in an android.
Under the condition of b2 in the S2, calling a file processing function, and exporting a test image locally stored at the Android equipment terminal;
and S4, projecting the derived test image onto a detected display screen through an interface and a converter of the mobile phone, so as to realize screen detection of the display.
2. The Android-based method of generating test image inspection displays of claim 1, wherein: the user operation interface of the mobile phone end exists in the form of APP, a webpage or an applet.
3. The Android-based method of generating a test image inspection display of claim 1, wherein: and after S3 is finished, the mobile phone end jumps out of the preview box and is used for displaying the generated picture preview, and the operation of S4 is executed after the confirmation button is clicked.
4. The Android-based method of generating test image inspection displays of claim 1, wherein: in S4, the interface of the mobile phone is a type-c interface.
5. The Android-based method of generating a test image inspection display of claim 4, in which: in S4, the converter is a type-c-to-DP docking station or a type-c-to-DP cable, the type-c end is connected with a type-c interface of the mobile phone, and the DP docking station or the DP cable is connected with a display to be detected.
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