DigiDürer — a digital engraving system
DigiDürer — a digital engraving system
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DigiDürer — 数字雕刻系统
DOI：
10.1007/bf01901584
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
A. Bruckstein
中科院分区：
文献类型：
--
作者：
Y. Pnueli;A. Bruckstein
已经提出了多种用于在二值显示介质上再现灰度级图像的半色调方法。即使是最好的这些福尔斯的输出远远低于质量达到类似的分辨率媒体在人造雕刻。我们推出DigiDürer-数字雕刻/半色调系统。对于灰度级图像输入，系统产生具有输入的雕刻的外观的双级（仅黑色和白色）画面。即使当半色调的图形元素可见时，该系统也产生高质量的输出，并且通过使用关于图像内容的进一步信息或通过交互式用户干预，可以改进或定制输出的质量和风格。DigiDürer的核心是通过控制线元素的密度来生成半色调的曲线演化算法，线元素是通过Eikonal方程由图像诱导的势场的水平轮廓。由于该系统的基本版本产生相当粗略的结果，因此增加了进一步的功能，以允许用户干预和使用图像内容信息。对除线条之外的图形元素的扩展也是可行的。
A variety of halftone methods for reproducing gray-level images on bilevel display media have been proposed. The output of even the best of these falls far short of the quality achieved on similar resolution media in man-made engravings. We introduceDigiDürer — a digital engraving/halftoning system. For a gray-level image input, the system produces a bilevel (black and white only) picture, which has the appearance of an engraving of the input. The system produces high-quality output, even when the graphic elements of the halftone are visible, and both the quality and style of the output can be improved or customized either by using further information on the image content or by interactive user intervention. The heart ofDigiDürer is a curve evolution algorithm generating halftones by controlling the density of line elements, which are the level contours of a potential field induced by the image via an Eikonal equation. Since the basic version of the system produces rather rough results, further capabilities were added to allow for user intervention and the use of image content information. Extensions to graphic elements other than lines are also feasible.