I don't think I could have drawn the stripped bark log with dithering pattern from scratch - instead, I just kept adding layers over top of layers.

我不认为我可以得出与从头开始抖动模式的剥离树皮日志-不是，我只是不断地增加超过层上层。

youdao

An overview of already proposed watermarking algorithms for halftone images is given, based on the introduction of three kinds of halftone methods, ordered dithering, error diffusion and pattern.

介绍了有序抖动、误差扩散和模板法三种图像半色调方法，在此基础上，综述了现有的半色调图像水印算法，并对其中的四种方法进行了比较。

youdao