Research Article

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

Figure 8

for HVD. (a) The image “Woodland Hills, CA” (512 × 512 color image). (b) Edges detected by HVD with LPF. (c and d) Sharpened results by HVD with scaling factors and , respectively.
105945.fig.008a
(a) Original image
105945.fig.008b
(b) Edges detected by HVD with LPF
105945.fig.008c
(c) Scaling factor
105945.fig.008d
(d) Scaling factor