Artificial Mosaic Generation with Gradient Vector Flow and Tile Cutting

Figure 6

Percentage gain in the number of tiles compared to the mosaic without cuts. Colors represent several 𝑅_𝑁 values: 1/4, 1/3, 1/2, and 1.

(a)  Subtractive cut

(b) Shared cut (𝑅=1/2)

(c) Shared cut (𝑅=2/3)

(d) Shared cut (𝑅=1)