Table 1.

Errors of detection results.

No.	Water Content	Actual Area/cm2	Detection Area/cm2	Error/%
T1	42.5~85.4%	625.30	613.64	1.91
T2	40.3~89.8%	502.15	518.35	3.23
T3	35.8~53.6%	109.24	104.15	4.66