Image signal processing apparatus.

摘要

The present invention relates to an apparatus by which, in the image display corresponding to a image signal, image signal is processed to adjust the contrast of the picture so as to provide automatically the contrast adjustment most suitable for respective level of image signal, thereby improving the quality of the picture by regulating the level of the image signal according to the information showing the distribution status of the levels of image signals input during a specified period of time. <IMAGE>