| 摘要 |
The device comprises a correlator (21) for detecting correlation of horizontal scan beams of an image signal, a high pass filter (22) for filtering the high frequency component of image signal, a mixer (29) for mixing the correlation output and the high frequency component, a window signal generator (12) for generating an window signal, an analog switch for switching the mixed signal by the window signal, and a contour correcting circuit (28) for controling the amount of freeshoot or overshoot added in a transient part of the image signal by the mixed signal. |
