基于混色材料透光图像计算各材料厚度及占比的方法  

Algorithm of the Thickness and Mass Proportion of Color Materials in the Multilayer High-Transparency Specimen Based on Its Scanned Image

作　　者：陈丽君[1] 苏健 王府梅[1,2] CHEN Lijun;SU Jian;WANG Fumei(College of Textiles,Ministry of Education,. Donghua University, Shanghai 201620, China;Key Laboratory of Textile Science & Technology,Ministry of Education, Donghua University, Shanghai 201620, China;SGS-CSTC Standards Technical Seyvices Co. Ltd., Hangzhou 310052, China)

机构地区：[1]东华大学纺织学院,上海201620 [2]东华大学纺织面料技术教育部重点试验室,上海201620 [3]通标标准技术服务有限公司杭州分公司,浙江杭州310052

出　　处：《东华大学学报（自然科学版）》2019年第1期151-157,共7页Journal of Donghua University(Natural Science)

基　　金：国家自然科学基金资助项目(51673036)

摘　　要：在分析了材料厚度与透光性能的理论关系基础上,研究了平面状混色材料任意点的透光信号,探究了其中各色材料厚度及占比的计算方法。通过对4种不同颜色的聚酯材料进行试验,发现在红绿蓝(R、G、B)3种单色光照射下,各种颜色材料的实际厚度与光学厚度都有一段明显的线性关系,并找出了该线性相关方程及其适应范围。同时,两种不同颜色的聚酯材料叠加或混合后,混色材料任一点上各色膜厚度及占比也可以由该点的R、G、B透光图像数据计算,且计算精度达到了94.33%。该方法也可用于其他混色透光材料(如混色纤维网、混色纱线)的厚度及占比的计算。Based on the analysis of theoretical correlation between material thickness and its light transmission performance, research was conducted about the measurement of each color material thickness and its proportion according to every point s light transmission signal at scanned image of plane multilayer specimen. Experiments were carried out on four different color PET (polyethylene terephthalate) materials under three monochromatic parallel light (red, green, blue). Results show that the actual thickness of each color material is proportional to its optical thickness. Its linear equation and the linearity range are found as well. Each color material thickness and its proportion can be calculated based on the value of red, green, blue light on color scanned transmission image of multilayer specimen composed with two different color material, and the precision up to 94.33%. Furthermore, the methods can be also applied to analyze fiber web and melange yarn composed with different color fibers.

关 键 词：混色 聚酯薄膜 RGB空间 朗伯定律 光透射 

分 类 号：TS101.3[轻工技术与工程—纺织工程]