Study on the Effect of Surface Roughness on the Spectral Unmixing of Mixed Pixels

Table 1

Average reflectance statistics of mixed pixels on four kinds of photo paper.

PWE	Glossy paper	Matte paper	Frosted paper	Satin paper	Range of reflectivity
1.000	0.844	0.820	0.838	0.869	0.049
0.950	0.770	0.779	0.768	0.804	0.036
0.900	0.726	0.734	0.725	0.755	0.030
0.850	0.685	0.692	0.685	0.713	0.027
0.800	0.643	0.652	0.644	0.671	0.027
0.750	0.602	0.611	0.612	0.608	0.010
0.700	0.561	0.587	0.572	0.572	0.026
0.650	0.523	0.546	0.531	0.529	0.023
0.600	0.488	0.510	0.494	0.495	0.022
0.550	0.471	0.469	0.459	0.458	0.013
0.500	0.433	0.431	0.418	0.415	0.017
0.450	0.396	0.378	0.402	0.381	0.024
0.400	0.359	0.340	0.361	0.343	0.021
0.350	0.322	0.303	0.323	0.307	0.020
0.300	0.285	0.269	0.287	0.271	0.018
0.250	0.250	0.248	0.250	0.236	0.015
0.200	0.216	0.211	0.220	0.203	0.017
0.150	0.181	0.177	0.185	0.171	0.013
0.100	0.148	0.142	0.149	0.139	0.010
0.050	0.118	0.113	0.118	0.111	0.008
0.000	0.097	0.089	0.091	0.099	0.010