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首页> 外文会议>Conference on Computer Image Analysis in the Study of Art; 20080128-29; San Jose,CA(US) >Color Transplant for Reverse Ageing of Faded Artworks
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Color Transplant for Reverse Ageing of Faded Artworks

机译：用于褪色艺术品反向老化的彩色移植

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摘要

Nowadays, photographs are one of the most used media for communication. Images are used for the representation of documents, Cultural goods, and so on: they are used to pass on a wedge of historical memory of the society. Since its origin, the photographic technique has got several improvements; nevertheless, photos are liable to several damages, both concerning the physical support and concerning the colors and figures which are depicted in it: for example, think about scratches or rips happened to a photo, or think about the fading or red (or yellow) toning concerning the colors of a photo.In this paper, we propose a novel method which is able to assess the original beauty of digital reproductions of aged photos, as well as digital reproductions of faded goods. The method is based on the comparison of the degraded image with a not-degraded one showing similar contents; thus, the colors of the not-degraded image can be transplanted in the degraded one.The key idea is a dualism between the analytical mechanics and the color theory: for each of the degraded and not-degraded images we compute first a scatter plot of the x and y normalized coordinates of their colors; these scatter diagrams can be regarded as a system of point masses, thus provided of inertia axes and an inertia ellipsoid.Moving the scatter diagram of the degraded image over the one belonging to the not-degraded image, the colors of the degraded image can be restored.
机译：如今，照片是最常用的交流媒体之一。图像用于表示文件，文化产品等：用于传递社会的历史记忆。自从摄影技术诞生以来，它已经有了一些改进。但是，照片可能会受到多方面的损害，无论是关于物理支撑，还是关于其中所描绘的颜色和图形：例如，考虑照片上的划痕或裂痕，或者考虑褪色或红色（或黄色）本文提出一种新颖的方法，该方法能够评估老化照片的数字复制以及褪色物品的数字复制的原始美感。该方法基于将退化图像与显示相似内容的未退化图像进行比较。因此，可以将未退化图像的颜色移植到退化图像中。关键思想是分析力学和颜色理论之间的二元性：对于每个退化和未退化图像，我们首先计算散点图。其颜色的x和y归一化坐标；这些散布图可以看作是点质量的系统，因此提供了惯性轴和惯性椭球。将降级图像的散布图移动到属于非降级图像的散布图上，可以得到降级图像的颜色。恢复。

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