| 摘要 |
<p>A video signal processing apparatus that performs an appropriate knee processing to suppress occurrence of false colors and occurrence of line inconsistencies in density, thereby providing desirable video signals. The apparatus performs a knee processing of video signals having color components arranged for respective pixels in such a manner that a ratio of signal levels of at least adjacent ones of those pixels is maintained. In this way, when the luminance and color-difference signals are produced based on the result of the knee processing, both the luminance signal to be obtained based on the result of addition of the adjacent pixels and the color-difference signal to be obtained based on the difference between the adjacent pixels can be appropriately produced. Thus, even after a knee processing is performed, the hue of the color-difference signal can be maintained.</p> |
