一次最重要的文明退化事件发生在公元前3世纪的时候。
One of the most important events in the degradation of civilization 3, BC century.
当数以百万计的人们观看同一电视节目时，整个世界成了一个小村庄，社会退化到文字出现前状况。
When millions watch the same programmes, the whole world becomes a village, and society is reduced to the conditions which obtain in preliterate communities.
图像增强的目的就是对退化的图像进行处理，使其在一定程度上复原成没有退化前的理想图像。
The aim of image enhancement is to process the degenerated images to recover to the ideal image before degeneration.
应用推荐