不同时间VITA 3D-Master比色板2M2比色片数码颜色差异性的研究<br />-《中国美容医学》

文章信息/Info

Title:: Digital Color Differences of 2M2 Tab of the Vita 3D-Master Shade Guide at Different Times

Author(s):: LI Xing-hong1; BAO Xiang-jun2; 3; JIA Shuang2; 3; WANG De-fang2; 3; YE Rong-rong2; 3; ZHOU Li-ying2; 3

Keywords:: Key words: L*a*b* color space; shade tab; color difference; uniform color; digital color

摘要:: [摘要]目的：比较不同时间拍摄的VITA 3D-Master比色板2M2比色片数码颜色在L*a*b*颜色空间的颜色差异。方法：用Nikon
D700单镜头反光数码相机在D50标准光源下，在不同时间对VITA 3D-Master比色板2M2比色片进行拍摄，在Photoshop软件
中用直方图读取比色片唇面的R、G和B平均值，根据该值建立新的均匀颜色图像文件作为该比色片的平均颜色，在Eye-
One Share软件中建立相同颜色的文件，读取L*a*b*数值，进行比较和分析。结果：视觉上难以察觉不同时间拍摄的VITA
3D-Master比色板2M2色片的颜色差异，可以察觉其对应均匀颜色之间存在颜色差异，2M2比色片在L*a*b*颜色空间的颜色差异
为0.5～3.8。结论：对VITA 3D-Master比色板2M2比色片的数码颜色在L*a*b*颜色空间差异的分析，有助于提高修复体颜色选
择、交流和复制的准确性。

Abstract:: Abstract: Objective To compare the color difference of the digital color in the L*a*b* color space of 2M2 tab of the VITA
3D-Master shade guide at different times. Methods The photos of 2M2 tab ofa commercial VITA 3D-Master shade guide was
shot under the D50 standard light source with Nikon D700 single-lens reflex digital camera at different times. A new uniform
color image file was established according to the average value of R、G and B of each tab read with histogram in Photoshop
software. The same uniform color file was created and the L*a*b* values were read,analyzed and compared in the Eye-One Share
software. Results The color differences between the 2M2 tabs photographed at different times are difficult to be perceived
while the corresponding uniform colors can be perceived. The color differences range in the L*a*b* color space of the 2M2 tabs
is from 0.5 to 3.8. Conclusion The analysis of the digital color differences in L*a*b* color space between the 2M2 tabs can
improve the accuracy of color match, communication and the replication of the restorations.