Table 1. Before and after correction of lateral effect (consider dose and position dependence), the mean ± 2SD of RGB channels were provided.

Dose (cGy)	Red channel		Green channel		Blue channel
	Corr	Uncorr	Corr	Uncorr	Corr	Uncorr
74.5	74.8±0.6	76.2±3.2	74.5±0.2	76.6±4.2	74.9±1.0	79.7±10.0
223.5	223.1±0.9	228.2±8.5	223.2±0.2	227.4±7.5	222.5±0.3	229.0±13.2
372.5	372.4±0.6	384.9±25.7	371.8±0.2	380.7±17.7	372.7±0.9	384.8±23.0