Reconstruction of the reflectance curves by using interpolation method
The linear interpolation method is applied to reconstruct the reflectance curves of the Munsell color chips, by converting colorimetric data under a given viewing conditions, using the look-up-table (LUT) interpolation technique. The source space has been formed by calculation of the tristimulus values of the 1269 Munsell color chips under different illuminants, while the corresponding reflectance data is considered as destination space. The CIE color specifications of Munsell color chips, i. e. tristimulus values under different illuminants and the colorimetric shift of the samples are considered for creating different LUTs. As results show, the reconstructed reflectance curves significantly improve by increasing the dimensions of source space. Totally, recovered reflectance curves are good when the source space is a three dimensional CIEXYZ space. Besides, it was shown that the metamerism index between the samples and their recovered ones decrease by increasing the dimensions of the source space. It is concluded that a type of balance should be considered between the reliable prediction of the reflectance curve and the dimensions of the source space as well as the number of samples which their reflectance curves could be reconstructed.
reflectance curve interpolation reconstruction tristimulus value
F. M. Abed S. H. Amirshahi S. Peyvandi M. R. M. Abed
Department of Color Physics, Institute for Colorants, Paint & Coating, Tehran, Iran Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
国际会议
杭州
英文
190-194
2007-07-12（万方平台首次上网日期，不代表论文的发表时间）