Investigation of a Novel Common Subexpression Elimination Method for Low Power and Area Efficient DCT Architecture

Table 4

Selector S2 attributes according to selection Sel2.

Sel2	Operation
	Output 1	Output 2
0	𝑐2×𝑓(𝑥𝑖,𝑦𝑗)	𝑐6×𝑓(𝑥𝑖,𝑦𝑗)
1	𝑐6×𝑓(𝑥𝑖,𝑦𝑗)	𝑐2×𝑓(𝑥𝑖,𝑦𝑗)