| 摘要 |
<p>In a method of enhancing a quality of a video signal (Yin), an absolute value (ST) of a first derivative of the video signal (Yin) is obtained (51-59), and the video signal (Yin) is processed (53-57, 61-69) in dependence upon the absolute value (ST) of the derivative of the video signal (Yin).</p> |
