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Table 2.

Mean ( μ), standard deviation (σ) and selected quartiles (Q1,  3) of the reference-to-measured ratio of all mock sources added to the example image in Fig. 5, corresponding to the sky subtraction algorithms compared in this work.

Algorithm μratio σratio Q1 Q3
Azimuthally 1.011 0.077 0.999 1.028
tringSub 1.063 0.059 1.031 1.074
ringsub 1.012 0.044 1.001 1.021
(this work)

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