我们认为的最佳的对比度是80%,这可以作为一般的经验值.We aim for 80 % contrast as a general rule of thumb.对比度定义为两个光密度之比.In this definition, the contrast is given by the ratio of two light densities.实验结果表明:该方法可以有效地实现对比度增强 、 噪声抑制和边缘保护.Experimental ...
...the baronial feuding of the Middle Ages.中世纪贵族领主间的世仇There was a chill between the two feuding [ fpu: ding ] neighbors.两个邻居因为 吵架 而关系冷淡.The two families have been feuding with each other for many generations.这两个家族有好多代的世仇...