A method for dynamic image quality adjustment

Abstract

The present invention provides a method for dynamically adjusting image quality, including steps, A1. Take the current frame, the frames of the first set value before it, and the frames of the second set value after it, and for each frame of image The brightness of the pixel point at the set position of the set value is carried out, and the loop detection of the number of times of the third set value is carried out to calculate the average value of the average level of the dynamic image quality; A2. Divide the brightness interval into the fourth set value level, and divide the The pixel points of the image are sampled, the brightness of the obtained pixel points is measured, and statistics are carried out with the brightness level of the fourth set value, and the ratio of the pixel points whose brightness does not reach the average value to all the sampled pixel points is calculated; A3. The numerical value is multiplied by the proportional numerical value to obtain the average correction value of the average dynamic image quality; A4. Use the input image information to superimpose the correction value as the output image information. From the level of image decoding, the overall image quality level is improved, and the problem of life damage of the screen caused by backlight changes is eliminated.

Description

technical field [0001] The invention relates to the adjustment of the image quality of the television display, in particular to a method for dynamically adjusting the image quality. Background technique [0002] Among the various existing designs for changing image quality, most of them use an image information collector that can collect image-related parameters, a CPU that can analyze and process the collected information, and the signal of the information collector is connected to the CPU. The CPU controls the backlight brightness adjustment port connected to the LCD display module. The method of CPU control is used to adjust the backlight and brightness of the image to reduce the visual fatigue caused by the overly bright image or large-area white field to improve the image quality. But in terms of picture quality, the effect that can be achieved only by changing the backlight is very limited. [0003] At present, in the field of flat panel display, the backlight module...

AI Technical Summary

Problems solved by technology

[0004] Since the existing technical solutions are controlled by the CPU, and can only change the brightness of the backlight of the LCD, the optimization of the image quality cannot be realized in a real sense.

Because the CPU receives and sends only an average brightness signal, it can only adjust the brightness control switch of the backlight

Moreover, in the prior art, the brightness change is completely dependent on the backlight. Due to frequent changes in the brightness of the backlight, this has a great degree of damage to the service life of the display screen, especially the service life of the backlight module.

Images