METHOD FOR CONTROLLING A BLACK LEVEL OF A VIDEO DEVICE AND THE VIDEO DEVICE ADOPTING THE SAME, CAPABLE OF IMPROVING THE PICTURE QUALITY BY AUTOMATICALLY SETTING UP THE BLACK LEVEL

摘要

PURPOSE: A method for controlling a black level of a video device and the video device adopting the same are provided to output a video signal without the degradation of image quality.;CONSTITUTION: A method for controlling a black level of a video device comprises the following steps of: performing the histogram analysis for the decoded brightness signals of video signals of each inputted frame(S101); counting pixels included in a specified section among classified sections and performing the histogram analysis for the brightness signals(S103); and determining the video signal as the first signal when the number of pixels within the specified section is threshold or greater(S104).;COPYRIGHT KIPO 2010