Table 3: Emissivity values of the coast pine sample.

ExperimentHeating mode200 × 100 pixels100 × 100 pixels
εAverage surface temperature (°C)εAverage surface temperature (°C)

1Radiation0.9939.400.9939.10
0.9939.300.9939.10

2Conduction0.9545.100.9444.70
0.9544.200.9443.80

3Convection0.9734.200.9734.30
0.9833.900.9834.10