Dark field picture compensation method and device, display equipment and readable storage medium

Abstract

The invention provides a dark field picture compensation method and device, display equipment and a readable storage medium, which are applied to compensation of dark field pictures of the display equipment. The dark field picture compensation method comprises the following steps: calculating a brightness average pixel value of each frame of picture in a video signal; screening out a dark field frame picture in the video signal by utilizing a preset threshold value and the brightness average pixel value of each frame picture; generating a dark field compensation gain and a dark field compensation curve corresponding to the dark field frame picture by using a preset algorithm; and superposing the dark field compensation gain and the dark field compensation curve to the original gamma curve to compensate the corresponding dark field frame picture. The dark field frame picture of the video signal is screened, only the dark field frame picture is compensated, so that the influence on the bright field picture is avoided in the video dark field detail enhancement process, and the dark field compensation gain and the dark field compensation curve are superposed into the original gamma curve of the display equipment, so that the effect of dynamically improving dark field details can be achieved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a dark field picture compensation method, device, display device and readable storage medium. Background technique [0002] In the prior art, display devices, including monitors and televisions, are equipped with brightness adjustment and gamma curve (EOTF) adjustment, so that the display device can perform a certain brightness compensation on dark field images with low brightness, thereby avoiding Part of the picture details are lost due to the dark field. However, limited by the brightness of the display device itself, and the gamma curve in the display device is fixed, and needs to be adjusted manually according to the needs, so the display device cannot self-adjust according to the displayed dark field picture. It is inevitable that a lot of picture details will be lost in the picture, and brightness adjustment and gamma curve adjustment are adjustments to the displ...

AI Technical Summary

Problems solved by technology

However, limited by the brightness of the display device itself, and the gamma curve in the display device is fixed, and needs to be adjusted manually according to the needs, so the display device cannot self-adjust according to the displayed dark field picture. It is inevitable that a large number of picture details will be lost in the picture, and the brightness adjustment and gamma curve adjustment are adjustments to the display device as a whole, so it will also affect the display of bright field pictures

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