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首页> 外文期刊>IEEE Signal Processing Magazine >Threshold modulation and stability in error diffusion
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Threshold modulation and stability in error diffusion

机译：阈值调制和误差扩散的稳定性

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摘要

Many modifications to error diffusion have been proposed to improve the algorithm and to extend its application to print media and to color. In this article, we describe some of the lessons that have been learned in two areas of error-diffusion research: threshold modulation and error stability. Both of these areas are important in understanding how to improve and extend the algorithm. Many suggested modifications have been made over the years to eliminate these unwanted textures. One method to improve the algorithm involves different ways of calculating and distributing the errors. Some of the modified algorithms have even proposed amplifying or suppressing the errors. Strange effects can occur, however, when the errors are amplified or if negative components are introduced. The stability analysis presented in this article will illustrate these instabilities and explain their relationship to changes in the error distribution.
机译：已经提出了对误差扩散的许多修改，以改进算法并将其应用扩展到打印介质和彩色。在本文中，我们描述了在错误扩散研究的两个领域中已经吸取的一些教训：阈值调制和错误稳定性。这两个领域对于理解如何改进和扩展算法都很重要。多年来，已经提出了许多建议的修改以消除这些不需要的纹理。一种改进算法的方法涉及不同的计算和分布误差的方法。一些改进的算法甚至已经提出放大或抑制误差。但是，当误差被放大或引入负分量时，可能会发生奇怪的影响。本文介绍的稳定性分析将说明这些不稳定性，并说明它们与错误分布变化的关系。

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