After discussing the advantages and disadvantages of the current digital halftone algorithms, this thesis studies digital halftoning technique mainly aimed at gray image.
在已有数字半色调技术基础上，以灰度图像为研究对象，对该技术进行了进一步的研究。
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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