Method for improving image effect and apparatus therefor

• Main Authors: Yang, Jian, Yu, Minghuo, Yao, Wenxing, Yang, Xiaodong
• Format: Patent
• Language: English
• Published: 18.07.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

Disclosed are a method for improving an image effect and an apparatus therefor. The method for improving an image effect comprises the steps of: when a system starts up, acquiring a screen parameter to determine whether an input signal source is an SDR film source or an HDR film source; if the input signal source is an SDR film source, performing first image processing on the SDR source so as to obtain an SDR image, and starting up an HDR conversion mode; reducing the backlight brightness of the SDR image to a pre-set brightness, and displaying a current peak brightness pixel or a peak brightness area according to the screen parameter after the backlight brightness is increased; and if the input signal source is an HDR film source, performing second image processing on the HDR film source so as to obtain an HDR image, closing down the HDR conversion mode, and then displaying the HDR image. In this way, a high-grayscale detail performance capacity is improved, an SDR-to-HDR function is achieved, and there is a higher brightness range and there are more picture details, so that an SDR film source can be played with the display effect of an HDR film source in an HDR television.