An Efficient and Self-Adapted Approach to the Sharpening of Color Images

Table 2

Operation counts of the proposed approach.

Operations	APU	MPU/DIV	ABS	COMP
HVD	≤2	0	≤2	≤2
Low-pass filtering	7	0	0	1
Edge sharpening	9	4	0	1

HVD is required for each pixel.
LPF and edge sharpening is for edge pixel only.