多頻譜分析模式應用於估算網點面積之研究

色彩複製上很容易會遇到同色異譜的現象，因此有相關文獻開始採用以頻譜複製的方式來進行色彩複製，希望能透過重建與複製物體的反射光譜，達到在不同的觀測光源環境下，依舊可以重現或預測其原始色彩。也能夠重建色彩與記錄色彩特性，這也就是色彩複製的最關鍵所在。本研究採用分光式多頻譜掃描儀進行多種頻譜演算模式分析，從380nm～730nm內取樣間隔10nm的方式取出36個色頻波段，運用PCA期望能依其特性建立最佳演算分析模式，並且簡化其複雜的分析流程，頻譜的特性決定對色彩的判斷，所以在分析法上面的特徵分析更為重要。本研究採用較先進分光式多頻譜技術進行研究，相較於以往多頻譜影像技術在於平面不同，以主成份分析進行分析，並且從實驗上的結果發現，色塊在PCA分析中有固定的差異量，並運用此實驗結果分析漸層色票。以主成份分析觀察其差異，藉由此差異量分析混色比例嘗試建立最佳的物體主色多頻譜複製。

關鍵字

多頻譜影像；主成份分析

並列摘要

The color reproduction often encounter the phenomenon of metamerism. Therefore, the literature related to the use of the spectrum starts to copy the Color reproduction. Hope that through reconstruction and replication of objects reflection spectrum, Reached under different lighting conditions observed, Still can reproduce or predict its original color. Multi-spectrum technology is able to reconstruct the color and record of color characteristics, and this is the color reproduction of the most key. In this study, using the grating-type instrument with analyze a variety of spectrum calculation mode, from 380nm-730nm within the sampling interval of 10nm remove 36 color band, and use PCA in accordance with the characteristics of the establishment of the best algorithmic analysis mode. Characteristics of the different analysis to analyze the data, through the spectrum characteristic determines the judgment of color. Therefore, the analysis of the characteristics of the method is even more important. In this study, using the more advanced multi-spectrum technology research, analysis by principal component analysis and is found from the experimental results, Color has a fixed amount of difference in the PCA analysis, And use the results of this experiment analysis of Gradient swatches, in order to observe the difference in principal component analysis. Using this difference in the amount of analysis attempts to establish optimum mixing ratio of the main color multispectral object replication.