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Filter methods to preserve local contrast and to avoid artifacts in gamut mapping

机译：过滤方法可保留局部对比度并避免色域映射中的伪影

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摘要

Contrary to high dynamic range imaging, the preservation of details and the avoidance of artifacts is not explicitly considered in popular color management systems. An effective way to overcome these difficulties is image filtering. In this paper we investigate several image filter concepts for detail preservation as part of a practical gamut mapping strategy. In particular we define four concepts including various image filters and check their performance with a psycho-visual test. Additionally, we compare our performance evaluation to two image quality measures with emphasis on local contrast. Surprisingly, the most simple filter concept performs highly efficient and achieves an image quality which is comparable to the more established but slower methods.
机译：与高动态范围成像相反，在流行的色彩管理系统中未明确考虑保留细节和避免伪影。克服这些困难的有效方法是图像过滤。在本文中，我们研究了几种用于细节保留的图像滤波器概念，并将其作为实用色域映射策略的一部分。特别是，我们定义了四个概念，包括各种图像滤镜，并通过心理视觉测试来检查其性能。此外，我们将我们的性能评估与两个图像质量指标进行了比较，重点是局部对比度。出乎意料的是，最简单的滤波器概念可以高效执行并获得可与较成熟但较慢的方法相比的图像质量。

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