色差计算及其在荧光图像中的应用

Color difference calculation and the application in fluorescence image

沥青组分间的色差分析作为区分油水的关键参数,表征了沥青物质的变化.沥青采样薄片图像通过改进的ISODATA聚类分析区分出油质,沥青质,胶质和水各成份.采用色差公式CIE1976 L*a*b* 和CIE DE2000对上述成份进行相互之间色差分析,讨论采用2种公式得到的实验结果之间的差异性,说明了色差公式在实际分析中所具有的准确性和良好的适应性.

The color differences analysis among Pitch components, represents the transformation of Pitch components,is the crucial parameter for distinguishing between crude oil and water. The digital Pitch images of sampling specimens can be distinguished to 4 components (containing oiliness, asphaltum, colloid and water) by advanced ISODATA clustering analyse. This article discusses using 2 color difference formulas,CIE1976L~*a~*b~* and CIE DE2000, to analyze the color differences among above—mentioned components;explaines the diversity of the two formulas's experimental results;and proves the accuracy and flexibility of the color difference formulas in actual analyse.