基于CIE Lab和DE2000测量材料老化的色坐标计算色差和评价

Color Difference and Evaluation of Color Coordinate Calculation for Measuring Material Aging Base on CIE Lab and DE2000

对于预定在室外使用的电子信息类产品,其外壳老化后颜色的差异是一项关键的参考指标,目前很多出口欧美国家及地区在室外使用的电子产品都对此提出了要求。外壳材料在室外的长期运作后会出现一系列的老化特征,包括:褪色、龟裂、起泡、粘化和粉尘化等等。针对这些老化特征,该文主要考察外壳材料在老化后的色差,对比了CIELAB色差公式和CIE DE2000色差公式在视觉相关性上对外壳材料色差评价的影响,并进行了试验和数据的分析。

For the electronic information products that are intended for outdoor use.The color difference after shell aging is a key reference index.At present,many outdoor electronic products exported to European countries and regions require this requirement.A series of aging characteristics will appear after the long-time operation of the enclosure,for example:fading,cracking,bubbling,viscosity and dusting.In view of these aging characteristics.This paper mainly investigates the color difference of enclosure after aging,compares the influence of CIELAB color difference formula and CIE DE2000 color difference formula on the color difference evaluation of enclosure in visual correlation,with experiment and data analysis.