Research on the Influence of Image Linearization on Reconstruction Accuracy of Spectral Reflectance

Xiaofan Fu; Yang Xu; Changjun Li

doi:10.3788/LOP202158.1433001

Journals >Laser & Optoelectronics Progress >Volume 58 >Issue 14 >Page 1433001 > Article

Laser & Optoelectronics Progress
Vol. 58, Issue 14, 1433001 (2021)

Research on the Influence of Image Linearization on Reconstruction Accuracy of Spectral Reflectance

Xiaofan Fu, Yang Xu^*, and Changjun Li

Author Affiliations

College of Computer and Software Engineering, University of Science and Technology, Anshan, Liaoning 114051, China

show less

DOI: 10.3788/LOP202158.1433001 Cite this Article Set citation alerts

Xiaofan Fu, Yang Xu, Changjun Li. Research on the Influence of Image Linearization on Reconstruction Accuracy of Spectral Reflectance[J]. Laser & Optoelectronics Progress, 2021, 58(14): 1433001 Copy Citation Text

show less

Fig. 1. Linearization of neutral color blocks by cubic polynomial equation

Download full size

Root-mean-square error of textile samples before and after linearization in different order weighted polynomial regression algorithm. (a) Root-mean-square error of one order weighted polynomial regression algorithm; (b) root-mean-square error of two order weighted polynomial regression algorithm; (c) root-mean-square error of three order weighted polynomial regression algorithm; (d) root-mean-square error of four order weighted polynomial regression algorithm

Fig. 2. Root-mean-square error of textile samples before and after linearization in different order weighted polynomial regression algorithm. (a) Root-mean-square error of one order weighted polynomial regression algorithm; (b) root-mean-square error of two order weighted polynomial regression algorithm; (c) root-mean-square error of three order weighted polynomial regression algorithm; (d) root-mean-square error of four order weighted polynomial regression algorithm

Download full size

Data	Average ΔE₀₀
Data	One order	Two order	Three order	Four order
JPG	2.8327	2.1801	1.8171	1.9111
Linearized JPG	1.9569	2.1608	2.2505	2.2027

Table 1. Comparison of reconstruction accuracy of color cards

Data	Average ΔE₀₀
Data	One order	Two order	Three order	Four order
JPG	5.3947	3.2274	2.9301	2.9103
Linearized JPG	4.0478	3.7947	3.6756	4.8196

Table 2. Comparison of reconstruction accuracy of printed matter

Data	Average ΔE₀₀
Data	One order	Two order	Three order	Four order
JPG	3.2985	2.1677	2.0617	2.0754
Linearized JPG	3.2165	2.9529	2.9220	2.4736

Table 3. Comparison of reconstruction accuracy of textile

Data	Average RMSE
Data	One order	Two order	Three order	Four order
JPG	0.0230	0.0215	0.0242	0.0265
Linearized JPG	0.0310	0.0252	0.0234	0.0264

Table 4. Comparison of spectral reconstruction accuracy of color cards

Data	Average RMSE
Data	One order	Two order	Three order	Four order
JPG	0.0538	0.0459	0.0499	0.0547
Linearized JPG	0.0584	0.0486	0.0553	0.1548

Table 5. Comparison of spectral reconstruction accuracy of printed matter

Data	Average RMSE
Data	One order	Two order	Three order	Four order
JPG	0.0834	0.0865	0.0862	0.0876
Linearized JPG	0.0872	0.085	0.0851	0.0856

Table 6. Comparison of spectral reconstruction accuracy of textile

Xiaofan Fu, Yang Xu, Changjun Li. Research on the Influence of Image Linearization on Reconstruction Accuracy of Spectral Reflectance[J]. Laser & Optoelectronics Progress, 2021, 58(14): 1433001

Download Citation

Set citation alerts for the article

Tools

Set citation alerts for the article

Save the article for my favorites

Paper Information