Efficient decolorization preserving dominant distinctions

Efficient decolorization preserving dominant distinctions
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高效脱色,保留显着差异

DOI:
10.1007/s00371-015-1145-4
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发表时间:
2016-12
期刊:
The Visual Computer
影响因子:
--
通讯作者:
Weiyin Ma
Weiyin Ma
中科院分区:
其他
文献类型:
--
作者:
Zhongping Ji;Mei-e Fang;Yigang Wang;Weiyin Ma

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彩色图像的灰度表示具有重要的理论和实际意义。目前的颜色到灰度转换很少在实践中同时保证质量和效率。在本文中,我们提出了一个有效的全球映射,从颜色到灰度,同时保持视觉主导功能的彩色图像。我们的颜色到灰度的转换是基于传统的高斯差分带通滤波器,这是所谓的亮度滤波器的变体。带通滤波器通常对特定波段的区域具有高响应,这些区域具有与其周围环境相区别的颜色。灰度是从通过一系列带通滤波器的亮度导出的。我们的方法是线性的像素数,实现简单,计算效率高,使其适用于高分辨率图像。实验结果表明,我们的方法产生了令人信服的结果,大量的自然和合成图像。
Representing color images in grayscale has practical and theoretical importance. Current color-to-gray transformations seldom ensure both quality and efficiency simultaneously in practice. In this paper, we present an efficient global mapping from color to gray while preserving visually dominant features of color images. Our color-to-gray transformation is based on a variant of traditional Difference of Gaussians band-pass filter, which is called luminance filter. The band-pass filter usually has high responses on regions with discriminative colors from their surroundings for certain band. The grayscale is derived from the luminance passing a series of band-pass filters. Our method is linear in the number of pixels, simple to implement and computationally efficient, making it suitable for high resolution images. Experimental results show that our method produces convincing results for a large number of natural and synthetic images.
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