Fragile watermarks are used for authentication purposes and are capable of detecting minute changes of the watermark's content.

而脆弱水印则主要用来对图像进行防篡改验证，它能够检测到所添加水印的微小变化。

youdao

It is studied that the problems in embedding multiple watermarks simultaneously, and proposed an image watermarking scheme which embedded fragile and robust watermarks at the same time.

研究了多类数字水印同时嵌入的问题，提出了一种同时嵌入两类水印的图像数字水印算法。

youdao

In these days of easy fakes, pictures from police cameras or interview recordings could have watermarks put in that are fragile rather than robust.

ECONOMIST: In the picture