A Reliable Leakage Reduction Technique for Approximate Full Adder with Reduced Ground Bounce Noise

Table 3

PSNR for the subtracted images by using an mma1, mma2, mma3 and mma4 proposed approximate FA.

S.no.	Number of proposed approximate adder	PSNR
1.	MMA1 adder	10.8
2.	MMA2 adder	20.2
3.	MMA3 adder	10.6
4.	MMA4 adder	6.65