ASYMMETRIC APERTURE CORRECTOR FOR A TELEVISION IMAGE SIGNAL

摘要

An aperture corrector with which asymmetrical correction signals instead of the conventional symmetrical signals are generated. The correction signal part which is derived from a television image signal value located nearer the black level is relatively attenuated and that correction signal part which is derived from an image signal value located nearer the peak-white value is relatively amplified. When displaying the image signal which is aperture-corrected in an asymmetrical manner and is furthermore gamma-corrected, improved details and contours occur.