| CIE L*a*b*色空间色调角对比敏感度函数研究 |
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| 引用本文： | 金杨,刘真,王鹏飞.CIE L*a*b*色空间色调角对比敏感度函数研究[J].北京理工大学学报,2013,33(8):824-828. |
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| 作者姓名： | 金杨 刘真 王鹏飞 |
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| 作者单位： | 南京林业大学 轻工科学与工程学院,江苏,南京210037;北京印刷学院 印刷与包装工程学院,北京102600;南京林业大学 轻工科学与工程学院,江苏,南京210037;北京印刷学院 印刷与包装工程学院,北京,102600 |
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| 基金项目： | 国家自然科学基金资助项目(61040066) |
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| 摘 要： | 为获取人眼视觉在均匀颜色空间下的空间频率响应特性并构建其模型,在CIE 1976 L* a* b*色度系统下,对色调角对比敏感度函数(SH)进行了测试研究. 采用校准的彩色显示系统,对色调角正弦波变化的图像序列进行显示,经大量视觉观察实验,获取了人眼在12种色调角中心下的对比敏感度函数曲线. 结果表明,在不同色调角中心下,色调角对比敏感度函数存在差异,这种差异与人眼对不同色调的辨别能力紧密相关. 基于测试数据,构建了色调角对比敏感度的数学函数模型.
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| 关 键 词： | 对比敏感度函数 色调角 空间频率 |
| 收稿时间： | 2012/5/13 0:00:00 |
Research on Contrast Sensitivity Function of Hue in CIE 1976 L* a* b* Color Space |
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| JIN Yang,LIU Zhen and WANG Peng-fei.Research on Contrast Sensitivity Function of Hue in CIE 1976 L* a* b* Color Space[J].Journal of Beijing Institute of Technology(Natural Science Edition),2013,33(8):824-828. |
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| Authors: | JIN Yang LIU Zhen and WANG Peng-fei |
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| Institution: | 1.College of Science and Engineering for Light Industry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China;School of Printing & Packaging Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China2.College of Science and Engineering for Light Industry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China3.School of Printing & Packaging Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China |
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| Abstract: | To obtain the visual characteristics of frequency response under uniform-scaled color space and to construct its model, the contrast sensitivity functions of hue (SH) were tested under CIE1976 L* a* b* system. A series of images with sinusoidal change of hue angle in spatial frequency domain were displayed on a calibrated color display system. A lot of visual observation tests were carried out and 12 SH functions at corresponding hue angle centers were finally obtained. The test result shows that, under different hue angle centers, the SH functions are different. The differences among the 12 SH functions are related to the color distinguishing characteristics of human visual system. Based on the visual test data, the functional model of SH could be constructed. |
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| Keywords: | contrast sensitivity function hue angle spatial frequency |
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