Device and method for adjusting displaying feature of display

Abstract

The invention provides a device and a method for adjusting the displaying feature of a display. The device comprises a calculating unit used for receiving the data of displayed image and calculating the brightness histogram of the displayed image according to a preset rule, a judging unit used for receiving the brightness histogram and judging the type of the displayed image according to the peak position in the brightness histogram, and a contrast adjusting unit used for selecting the corresponding reference list of a color gradation image according to the judged image type so as to adjust the dynamic contrast of the image. Compared with the prior art, the device can solve the problems of excessive adjustment to the dynamic contrast of the image and noise generation, use the original gradation distribution of the image to judge which type of the contrast adjustment is fit for the image, and then use the corresponding curve of contrast adjustment gradation for adjustment, thereby improving the resolution effect of the image detail and dynamic contrast of the image.

Description

technical field [0001] The invention relates to a liquid crystal display, in particular to a display characteristic adjustment device and an adjustment method of the liquid crystal display. Background technique [0002] Image enhancement (image enhancement) is one of the important technologies of digital image processing. Its main purpose is to improve image quality through enhancement technology, making its content suitable for human eyes to observe and understand. For the images displayed on the current monitors, due to factors such as limited space, light, or improper human operation, it is often impossible to directly observe and understand image information on the displayed images, such as brighter or darker images. [0003] When the display screen is bright or dark, the traditional display will perform contrast stretching. If you want to get a better effect, you must have additional artificial adjustment parameters to achieve it, otherwise it will easily lead to over-...

AI Technical Summary

Problems solved by technology

However, when this method adjusts the contrast to increase (that is, the brighter areas are brighter and the dark areas are darker), there must be a phenomenon of overlap between the bright and dark levels, so some tone details will inevitably be lost, and the image's Local contrast will be worse

In addition, when the method adjusts the contrast reduction (darkening of bright areas and brightening of dark areas), the overall contrast of the image will decrease, making the image look foggy, and the resolution of image details will also be lost.

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