[Retracted] Multi-region Nonuniform Brightness Correction Algorithm Based on L-Channel Gamma Transform

Table 1

Definition of four typical image modules.

Typical image module	LB	HB	BT	NB
Average brightness	< 40	> 84	40 ≤ ≤ 84	40 ≤ ≤ 84
Average brightness difference	Ñg < 38	Ñg < 38	Ñg < 38	Ñg ≥ 38