A Block-Based Regularized Approach for Image Interpolation

Table 3

The run-time performance comparison of various image interpolation approaches.

Image	Lagrange-based	Bicubic	Edge-directed	Proposed method
Lena; (512×512)	0.13 s	0.56 s	29.80 s	0.29 s
Boat; (512×512)	0.13 s	0.56 s	31.80 s	0.29 s
Board; (256×256)	0.06 s	0.20 s	6.90 s	0.15 s
CalTrain; (400×512)	0.09 s	0.49 s	24.51 s	0.33 s