Abstract: The invention relates to a method and/or apparatus to improve the visual perception of an image displayed on a liquid crystal (LCD) panel, said method comprising steps for generating an adjusting signal (PE,i+1) of a rear-lighting lamp of said panel depending on an target power value (PT) and for generating a control signal (CE,i+1) of the image contrast depending on said adjusting signal (PE,i+1) of the rear-lighting lamp so as to increase/decrease the contrast of the displayed image when said adjusting signal (PE,i+1) of the rear-lighting lamp decreases/increases.

Abstract: The invention relates to a method and/or apparatus to improve the visual perception of an image displayed on a liquid crystal (LCD) panel, said method comprising steps for generating an adjusting signal (PE,i+1) of a rear-lighting lamp of said panel depending on an target power value (PT) and for generating a control signal (CE,i+1) of the image contrast depending on said adjusting signal (PE,i+1) of the rear-lighting lamp so as to increase/decrease the contrast of the displayed image when said adjusting signal (PE,i+1) of the rear-lighting lamp decreases/increases.

Abstract: A method of converting an input video signal (IV) with an input resolution into an output video signal (OV) with anoutput resolution comprises the steps of labeling (10) input pixels of the input video signal (IV) being text as input text pixels to obtain an input pixel map (IPM) indicating which input pixel is an input text pixel, and scaling (11) the input video signal (IV) to supply the output video signal (OV), wherein the scaling (11) is dependent on whether the input pixel is labeled as input text pixel.