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首页> 外文期刊>Journal of Imaging Science and Technology >Color Rendering Model for High Dynamic Range Images Using a Tone Mapping Method and a Cone Response Function
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Color Rendering Model for High Dynamic Range Images Using a Tone Mapping Method and a Cone Response Function

机译：使用色调映射方法和锥体响应函数的高动态范围图像的彩色渲染模型

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摘要

Mapping of the potentially high dynamic range (HDR) of real-world luminance to the low dynamic range (LDR) of photographic devices is one of the classic photographic tasks. Therefore, color compression or color rendering methods have been proposed and described in many works over the past five decades. However, there are well-known problems associated with these methods. Accordingly, this article presents a color rendering method that is a combination of tone mapping and chromatic adaptation in order to avoid color distortion after performing color correction (or rendering). The tone mapping operator produces visibility, and the overall impression of brightness, contrast, and color in a given HDR image when mapped onto a relatively LDR display or printer. In general, modern display devices differ dramatically from HDR images not only in peak luminance, dark luminance, and dynamic range, but also in the chromaticity of the white point. Ideally, the white point, which always represents its non-chromaticity and chromaticity, is equal to, or very close to, that of the equi-energy stimulus. Therefore, the tone mapping resultant image is obtained using chromatic and achromatic colors. Thereafter, the resulting image is processed through the cone response function using the modified surround luminance factor, and emphasis is placed on human visual perception. The experimental results show that the proposed method yields better performance in color compression than the conventional method in subjective and quantitative quality, and color reproduction. (C) 2015 Society for Imaging Science and Technology.
机译：将真实世界亮度的潜在高动态范围（HDR）映射到照相设备的低动态范围（LDR）是经典的照相任务之一。因此，在过去的五十年中，已经在许多著作中提出并描述了色彩压缩或色彩再现方法。但是，与这些方法有关的是众所周知的问题。因此，本文提出了一种颜色再现方法，该方法是色调映射和色彩适应的组合，以避免执行颜色校正（或渲染）后出现颜色失真。色调映射运算符在映射到相对LDR显示器或打印机上时，会在给定的HDR图像中产生可见性以及亮度，对比度和颜色的总体印象。通常，现代显示设备不仅在峰值亮度，暗亮度和动态范围上，而且在白点的色度上与HDR图像都显着不同。理想情况下，始终代表其非色度和色度的白点等于或非常接近等能量刺激的白点。因此，使用彩色和非彩色获得色调映射结果图像。此后，使用修改后的环绕亮度因子通过圆锥响应函数处理所得图像，并将重点放在人的视觉感知上。实验结果表明，该方法在主观和定量质量以及色彩还原方面比常规方法具有更好的色彩压缩性能。 （C）2015年影像科学与技术学会。

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  • 来源
    《Journal of Imaging Science and Technology》 |2015年第1期|010502.1-010502.12|共12页
  • 作者

    Choi Ho-Hyoung; Kang Hyun-Soo; Yun Byoung-Ju;

  • 作者单位

    Chungbuk Natl Univ, Sch Informat & Commun Engn, Cheongju 361763, Chungbuk, South Korea;

    Chungbuk Natl Univ, Sch Informat & Commun Engn, Cheongju 361763, Chungbuk, South Korea;

    Kyungpook Natl Univ, Coll IT Engn, Sch Elect Engn, Taegu 702701, South Korea;

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