Design and Implementation of Trace Inspection System Based upon Hyperspectral Imaging Technology

Table 3

Related evaluation indexes of blood handwriting wavelet fusion image.

Image	Information entropy	Average gradient	Average value	Standard deviation
A	4.26	5.55	26.43	28.94
B	4.82	6.23	30.34	29.65
C	4.51	6.13	25.76	33.21
D	5.35	5.82	27.43	30.84
E	4.36	5.31	29.43	27.65
F	5.21	6.33	32.84	25.64
G	5.56	5.71	23.45	29.34
H	5.04	5.16	28.64	31.54
I	6.21	10.26	55.27	47.68