A full-color video display correction processing method and system

Abstract

The invention discloses a full-color video display correction processing method and system. The correction processing method comprises the steps that a video signal source respectively outputs a standard full-red measuring signal, a standard full-green measuring signal and a standard full-blue measuring signal to display equipment; a chrominance gauge collects the color coordinate and the brightness value of each pixel point in a specific display area; color space conversion is conducted on the color coordinate and the brightness value of each pixel point so as to generate tri-stimulus values; the average tri-stimulus value is calculated; the average tri-stimulus value is expressed by the adoption of the visual mode of a CIE1931 color space chromaticity diagram; a mouse dragging signal of a user is received so as to obtain set color coordinates and set brightness values; color space conversion is conducted on the set color coordinates and the set brightness values so as to generate set tri-stimulus value; a conversion matrix is calculated; after the video signals are received, the video signals are multiplied with the conversion matrix, and the processed video signals are sent into the display equipment to be displayed. By the implementation of the technical scheme, the picture colors displayed by the different display equipment are uniform.

Description

technical field [0001] The invention relates to the field of LED display systems, in particular to a full-color video display correction processing method and system. Background technique [0002] Super large LED combination screen and LED screen combination system are widely used in indoor and outdoor occasions. As a new media, sports luminous graphics are easier to attract people's attention, with a large amount of information, updated at any time, and have very good advertising and notice effects. At present, these systems all use the same manufacturer and the same batch of products to ensure the same display effect, showing a consistent picture or an overall coordinated display effect. This is because color display devices, especially LED displays, are affected by raw materials and production processes, and color differences often occur between devices of the same type. Dot matrix; some circuits with different colors are abnormal, etc. That is, under the same video si...

AI Technical Summary

Problems solved by technology

That is, under the same video signal, there are obvious and visible differences in picture color between different devices

At the same time, if one of the screens in this system fails to work, it is necessary to replace the same manufacturer and the same batch of products. In extreme cases, if the manufacturer is located abroad, even small power supplies and spare parts will be replaced in an emergency. It is necessary to fly to the manufacturer for maintenance, which will inevitably bring great objective difficulties to system maintenance.

[0003] On the other hand, in some very standardized fields, such as: medical diagnostic electronic equipment (X-ray, stomach / colonoscopy, etc.), the same patient is checked on different equipment to obtain pictures with color difference, which only brings great harm to patients and doctors. come confused

Images