A Novel Adaptive Directional Interpolation Algorithm for Digital Video Resolution Enhancement

Figure 1

Directional regularity in natural images: (a) an image patch contains one main direction (120 degrees); (b) an image patch contains one main direction (40 degrees); (c) an image patch contains two main directions (30 degrees and 170 degrees); (d) an image patch contains three main directions (40 degrees, 80 degrees, and 165 degrees).

(a)

(b)

(c)

(d)