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。
A digital watermarking algorithm for halftone (binary) images was proposed.
针对半色调(二值)图像提出一种新的数字水印算法。
A new watermarking technique based on HVS and error diffusion was introduced, which can embed watermarking in halftone image.
本文提出了一种半色调处理的算法，它结合了误差分散技术及半色调模对应方法来生成半色调图像。
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