Method and system for automatically switching external sources to obtain pictures for contrast analysis

Abstract

The invention provides a method for automatically switching external sources to obtain pictures for contrast analysis, which comprises the following steps of S1, connecting an external source expansion adapter to a plurality of external sources, S2, operating an instruction receiving and processing program in different external sources, S3, sending an instruction to an external source, and setting a specified contrast test wallpaper, S4, sending an RS232 instruction to the main device through the USB relay, and switching to different external sources, S5, switching the contrast ratio on the main device, setting the increment contrast ratio deltap, gradually increasing the contrast ratio from 0% to 100%, executing screenshot operation in the main device, and acquiring n pictures, and S6, enabling the server to obtains n pictures and detecting the image contrast in the pictures to judge whether the contrast test passes or not. The method improves the test efficiency.

Description

technical field [0001] The invention relates to the technical field of computer communication, in particular to a method and system for automatically switching external sources to acquire pictures for contrast analysis. Background technique [0002] In the ActivPanel of Prometheus, the sliding transformation of the contrast can be performed in the native operating system. After sliding, you can directly switch to another operating system and make it effective. The test of this function is cumbersome and requires multiple times. Toggle, contrast detection of the display by naked eye. For example, the existing electronic interactive whiteboard multi-external source contrast test method is: 1. Connect different external sources to the electronic interactive whiteboard; 2. Switch to different external sources; 3. Adjust different contrasts in the built-in system of the whiteboard; 4. Switch to an external source, and check whether the image display changes; 5. Repeat steps 3 an...

AI Technical Summary

Problems solved by technology

The shortcomings of the existing tests are as follows: Disadvantage 1: This test method is calculated by the source image, so it is necessary to put the picture in a different system or device for re-screen capture before calculation, and the operation is cumbersome

Disadvantage 2: This test method requires manual switching of different external sources and switching of different contrast values

Disadvantage 3: For the viewing of contrast, it depends entirely on the naked eye, and cannot really effectively guarantee the difference in contrast

Images