METHOD AND DEVICE FOR ADJUSTING IMAGE QUALITY, AND READABLE STORAGE MEDIUM
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Applicant
Shenzhen TCL Digital Technology Ltd.
Representative
Keil & Schaafhausen Patentanwälte PartGmbB
Application number
EP20833595A1
Kind
A1
Document number
3993383
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METHOD AND DEVICE FOR ADJUSTING IMAGE QUALITY, AND READABLE STORAGE MEDIUM

3993383 - EP20833595A1 - EPO

Application May 15, 2020 - Publication May 04, 2022

Daxue XIA Linjun HE Renli XIE

Abstract

Provided by the present disclosure are a method and device for adjusting image quality, and a readable storage medium. The method comprises: a display device system selecting a focus region of a target image; outputting a mapping curve between an input brightness value and an output brightness value of the target image; then, calculating a pixel input brightness value range of the focus region of the target image, and making proportional adjustments according to upper and lower edge coefficients of the input brightness value range so as to obtaining new upper and lower edge coefficients; and finally, adjusting the focus region of the target image by adjusting the mapping curve according to the new upper and lower edge coefficients. By using the present disclosure, an image region of interest to a user is set as the focus region of the target image, and by adjusting the order of a linear Bessel curve or by inputting the adjustment factor of the upper and lower edge coefficients of the brightness value range, the contrast level of the target image is adjusted, so as to ensure smoothness of the image brightness adjustment change, and also ensure consistency of the adjusted image picture. Thus, the contrast level of the specific region of the image picture is increased, and the image quality is also enabled to be more vivid and rich.

Description

Claims

Patent References

Patent Publication Date Title
CN201910569860XW N/A N/A
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