【作者】 李文育； 董浩亮；

【Author】 LI Wenyu a , DONG Haoliang b College of Light Industry and Energy, Shaanxi University of Science and Technology, China

【机构】 陕西科技大学轻工与能源学院；

【摘要】 为了研究人眼在辨色阈值水平上的颜色视觉特性,以CIE推荐的用于色差评价研究的五个基本颜色为研究对象,采用恒常刺激法作为视觉识别实验的心理物理学实验方法,利用数码打样机输出具有小色差色块的样张,通过20位色觉正常的观察者视觉评价,在CIE1976a*b*平面内获得五个基本颜色的辩色阈值范围,利用最小二乘法拟合辨色椭圆,得到不同颜色的视觉辨色特性及色差阈值,其中绿色和红色的辩色范围较大,表明人眼对其视觉宽容度较大;在五个基本颜色中,人眼在红色区域的视觉均匀性最好。更多还原

【Abstract】 In order to study the visual characteristics of the human eye on color-distinguishing threshold levels, an experiment, of which the results provide significant data reference and theoretical basis for improvement of color evaluation methods of printing products, was carried out with 20 observers whose visual characteristics are normal. The observers were provided 5 basic colors that the CIE recommended for color evaluation study, and the constant stimulation psychophysical method was used in the visual experiment. The color patches were printed out with small color threshold variations. The color-distinguishing thresholds and visual characteristics were obtained through the experiment. Results showed that the notable color threshold values of green and red patches were relative larger, indicating larger visual tolerances. It is also shown that the red region in CIELAB color space has the best uniformity to human eyes among the five colors.更多还原