An Efficient and Self-Adapted Approach to the Sharpening of Color Images
Figure 4
for HVD. (a) The image “House” (512 × 512 color image). (b) V-channel of “House". (c) Edges detected by HVD. (d) Edges detected by Canny. (e) Edges detected by HVD with LPF. (f) Edges detected by Canny with LPF. (g) Sharpened Value channel by HVD with LPF. (h) Sharpened Value channel by Canny with LPF. (i) Sharpened result by HVD with scaling factor . (j) Sharpened result by Canny with scaling factor .