1 sentence

1. 提高对比度能使图像的黑白界限更加分明。

   tí​gāo duì​bǐ​dù néng shǐ tú​xiàng de hēi​bái jiè​xiàn gèng​jiā fēn​míng.

   Increasing the contrast makes the boundaries between black and white in the image clearer.

   Source: Dong Chinese Dictionary